[{"publication_identifier":{"issn":["2079-4991"]},"publication_status":"published","department":[{"_id":"15"},{"_id":"230"}],"title":"Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets","language":[{"iso":"eng"}],"doi":"10.3390/nano13030466","date_updated":"2023-08-03T11:14:10Z","volume":13,"date_created":"2023-08-03T11:13:28Z","status":"public","publication":"Nanomaterials","keyword":["General Materials Science","General Chemical Engineering"],"author":[{"last_name":"Feddersen","first_name":"Stefan","full_name":"Feddersen, Stefan"},{"last_name":"Zolatanosha","full_name":"Zolatanosha, Viktoryia","first_name":"Viktoryia"},{"first_name":"Ahmed","full_name":"Alshaikh, Ahmed","last_name":"Alshaikh"},{"id":"37763","last_name":"Reuter","full_name":"Reuter, Dirk","first_name":"Dirk"},{"last_name":"Heyn","full_name":"Heyn, Christian","first_name":"Christian"}],"publisher":"MDPI AG","user_id":"42514","abstract":[{"text":"Site-controlled Ga droplets on AlGaAs substrates are fabricated using area-selective deposition of Ga through apertures in a mask during molecular beam epitaxy (MBE). The Ga droplets can be crystallized into GaAs quantum dots using a crystallization step under As flux. In order to model the complex process, including the masked deposition of the droplets and a reduction of their number during a thermal annealing step, a multiscale kinetic Monte Carlo (mkMC) simulation of self-assembled Ga droplet formation on AlGaAs is expanded for area-selective deposition. The simulation has only two free model parameters: the activation energy for surface diffusion and the activation energy for thermal escape of adatoms from a droplet. Simulated droplet numbers within the opening of the aperture agree quantitatively with the experimental results down to the perfect site-control, with one droplet per aperture. However, the model parameters are different compared to those of the self-assembled droplet growth. We attribute this to the presence of the mask in close proximity to the surface, which modifies the local process temperature and the As background. This approach also explains the dependence of the model parameters on the size of the aperture.","lang":"eng"}],"year":"2023","type":"journal_article","citation":{"ieee":"S. Feddersen, V. Zolatanosha, A. Alshaikh, D. Reuter, and C. Heyn, “Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets,” Nanomaterials, vol. 13, no. 3, Art. no. 466, 2023, doi: 10.3390/nano13030466.","short":"S. Feddersen, V. Zolatanosha, A. Alshaikh, D. Reuter, C. Heyn, Nanomaterials 13 (2023).","bibtex":"@article{Feddersen_Zolatanosha_Alshaikh_Reuter_Heyn_2023, title={Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets}, volume={13}, DOI={10.3390/nano13030466}, number={3466}, journal={Nanomaterials}, publisher={MDPI AG}, author={Feddersen, Stefan and Zolatanosha, Viktoryia and Alshaikh, Ahmed and Reuter, Dirk and Heyn, Christian}, year={2023} }","mla":"Feddersen, Stefan, et al. “Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets.” Nanomaterials, vol. 13, no. 3, 466, MDPI AG, 2023, doi:10.3390/nano13030466.","apa":"Feddersen, S., Zolatanosha, V., Alshaikh, A., Reuter, D., & Heyn, C. (2023). Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets. Nanomaterials, 13(3), Article 466. https://doi.org/10.3390/nano13030466","ama":"Feddersen S, Zolatanosha V, Alshaikh A, Reuter D, Heyn C. Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets. Nanomaterials. 2023;13(3). doi:10.3390/nano13030466","chicago":"Feddersen, Stefan, Viktoryia Zolatanosha, Ahmed Alshaikh, Dirk Reuter, and Christian Heyn. “Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets.” Nanomaterials 13, no. 3 (2023). https://doi.org/10.3390/nano13030466."},"article_number":"466","issue":"3","intvolume":" 13","_id":"46278"},{"language":[{"iso":"eng"}],"doi":"10.3390/nano11020357","date_updated":"2022-01-06T06:55:37Z","publication_identifier":{"issn":["2079-4991"]},"department":[{"_id":"302"}],"title":"Protein Adsorption at Nanorough Titanium Oxide Surfaces: The Importance of Surface Statistical Parameters beyond Surface Roughness.","external_id":{"pmid":["33535535"]},"year":"2021","citation":{"bibtex":"@article{Yang_Knust_Schwiderek_Qin_Yun_Grundmeier_Keller_2021, title={Protein Adsorption at Nanorough Titanium Oxide Surfaces: The Importance of Surface Statistical Parameters beyond Surface Roughness.}, volume={11}, DOI={10.3390/nano11020357}, number={2}, journal={Nanomaterials}, author={Yang, Y and Knust, S and Schwiderek, S and Qin, Q and Yun, Q and Grundmeier, Guido and Keller, Adrian}, year={2021}, pages={357} }","mla":"Yang, Y., et al. “Protein Adsorption at Nanorough Titanium Oxide Surfaces: The Importance of Surface Statistical Parameters beyond Surface Roughness.” Nanomaterials, vol. 11, no. 2, 2021, p. 357, doi:10.3390/nano11020357.","ama":"Yang Y, Knust S, Schwiderek S, et al. Protein Adsorption at Nanorough Titanium Oxide Surfaces: The Importance of Surface Statistical Parameters beyond Surface Roughness. Nanomaterials. 2021;11(2):357. doi:10.3390/nano11020357","apa":"Yang, Y., Knust, S., Schwiderek, S., Qin, Q., Yun, Q., Grundmeier, G., & Keller, A. (2021). Protein Adsorption at Nanorough Titanium Oxide Surfaces: The Importance of Surface Statistical Parameters beyond Surface Roughness. Nanomaterials, 11(2), 357. https://doi.org/10.3390/nano11020357","chicago":"Yang, Y, S Knust, S Schwiderek, Q Qin, Q Yun, Guido Grundmeier, and Adrian Keller. “Protein Adsorption at Nanorough Titanium Oxide Surfaces: The Importance of Surface Statistical Parameters beyond Surface Roughness.” Nanomaterials 11, no. 2 (2021): 357. https://doi.org/10.3390/nano11020357.","ieee":"Y. Yang et al., “Protein Adsorption at Nanorough Titanium Oxide Surfaces: The Importance of Surface Statistical Parameters beyond Surface Roughness.,” Nanomaterials, vol. 11, no. 2, p. 357, 2021.","short":"Y. Yang, S. Knust, S. Schwiderek, Q. Qin, Q. Yun, G. Grundmeier, A. Keller, Nanomaterials 11 (2021) 357."},"type":"journal_article","page":" 357 ","pmid":"1","issue":"2","intvolume":" 11","_id":"22639","volume":11,"status":"public","date_created":"2021-07-08T11:50:44Z","author":[{"last_name":"Yang","first_name":"Y","full_name":"Yang, Y"},{"full_name":"Knust, S","first_name":"S","last_name":"Knust"},{"first_name":"S","full_name":"Schwiderek, S","last_name":"Schwiderek"},{"last_name":"Qin","full_name":"Qin, Q","first_name":"Q"},{"last_name":"Yun","first_name":"Q","full_name":"Yun, Q"},{"last_name":"Grundmeier","id":"194","first_name":"Guido","full_name":"Grundmeier, Guido"},{"last_name":"Keller","id":"48864","first_name":"Adrian","orcid":"0000-0001-7139-3110","full_name":"Keller, Adrian"}],"publication":"Nanomaterials","user_id":"48864"},{"doi":"10.3390/nano11040894","article_number":"894","_id":"22825","date_updated":"2022-01-06T06:55:42Z","citation":{"chicago":"Su, Jiangling, Juan Carlos Calderón Gómez, Guido Grundmeier, and Alejandro González Orive. “Electrografting of 4-Nitrobenzenediazonium Salts on Al-7075 Alloy Surfaces—The Role of Intermetallic Particles.” Nanomaterials, 2021. https://doi.org/10.3390/nano11040894.","ama":"Su J, Calderón Gómez JC, Grundmeier G, González Orive A. Electrografting of 4-Nitrobenzenediazonium Salts on Al-7075 Alloy Surfaces—The Role of Intermetallic Particles. Nanomaterials. 2021. doi:10.3390/nano11040894","apa":"Su, J., Calderón Gómez, J. C., Grundmeier, G., & González Orive, A. (2021). Electrografting of 4-Nitrobenzenediazonium Salts on Al-7075 Alloy Surfaces—The Role of Intermetallic Particles. Nanomaterials. https://doi.org/10.3390/nano11040894","bibtex":"@article{Su_Calderón Gómez_Grundmeier_González Orive_2021, title={Electrografting of 4-Nitrobenzenediazonium Salts on Al-7075 Alloy Surfaces—The Role of Intermetallic Particles}, DOI={10.3390/nano11040894}, number={894}, journal={Nanomaterials}, author={Su, Jiangling and Calderón Gómez, Juan Carlos and Grundmeier, Guido and González Orive, Alejandro}, year={2021} }","mla":"Su, Jiangling, et al. “Electrografting of 4-Nitrobenzenediazonium Salts on Al-7075 Alloy Surfaces—The Role of Intermetallic Particles.” Nanomaterials, 894, 2021, doi:10.3390/nano11040894.","short":"J. Su, J.C. Calderón Gómez, G. Grundmeier, A. González Orive, Nanomaterials (2021).","ieee":"J. Su, J. C. Calderón Gómez, G. Grundmeier, and A. González Orive, “Electrografting of 4-Nitrobenzenediazonium Salts on Al-7075 Alloy Surfaces—The Role of Intermetallic Particles,” Nanomaterials, 2021."},"year":"2021","type":"journal_article","language":[{"iso":"eng"}],"title":"Electrografting of 4-Nitrobenzenediazonium Salts on Al-7075 Alloy Surfaces—The Role of Intermetallic Particles","user_id":"194","abstract":[{"text":"In this work, the electrografting of Al-7075 aluminium alloy substrates with 4-nitrobenzenediazonium salt (4-NBD) films was studied on a complex aluminium alloy surface. Prior to the electrografting reaction, the substrates were submitted to different surface treatments to modify the native aluminium oxide layer and unveil intermetallic particles (IMPs). The formation of the 4-NBD films could be correlated with the passive film state and the distribution of IMPs. The corresponding electrografting reaction was performed by cyclic voltammetry which allowed the simultaneous analysis of the redox reaction by a number of complementary surface-analytical techniques. Spatially resolved thin film analysis was performed by means of SEM-EDX, AFM, PM-IRRAS, Raman spectroscopy, XPS, and SKPFM. The collected data show that the 4-NBD film is preferentially formed either on the Al oxide layer or the IMP surface depending on the applied potential range. Potentials between −0.1 and −1.0 VAg/AgCl mostly generated nitrophenylene films on the oxide covered aluminium, while grafting between −0.1 and −0.4 VAg/AgCl favours the growth of these films on IMPs.","lang":"eng"}],"publication_identifier":{"issn":["2079-4991"]},"publication_status":"published","date_created":"2021-07-27T14:04:30Z","status":"public","publication":"Nanomaterials","author":[{"full_name":"Su, Jiangling","first_name":"Jiangling","last_name":"Su"},{"last_name":"Calderón Gómez","full_name":"Calderón Gómez, Juan Carlos","first_name":"Juan Carlos"},{"last_name":"Grundmeier","id":"194","first_name":"Guido","full_name":"Grundmeier, Guido"},{"last_name":"González Orive","first_name":"Alejandro","full_name":"González Orive, Alejandro"}]},{"publisher":"MDPI AG","author":[{"last_name":"Kaufmann","full_name":"Kaufmann, Ivan Rodrigo","first_name":"Ivan Rodrigo"},{"full_name":"Zerey, Onur","first_name":"Onur","last_name":"Zerey"},{"full_name":"Meyers, Thorsten","first_name":"Thorsten","last_name":"Meyers"},{"first_name":"Julia","full_name":"Reker, Julia","last_name":"Reker"},{"last_name":"Vidor","first_name":"Fábio","full_name":"Vidor, Fábio"},{"first_name":"Ulrich","full_name":"Hilleringmann, Ulrich","last_name":"Hilleringmann","id":"20179"}],"publication":"Nanomaterials","keyword":["General Materials Science","General Chemical Engineering"],"status":"public","date_created":"2023-01-24T10:08:10Z","volume":11,"abstract":[{"lang":"eng","text":"Zinc oxide nanoparticles (ZnO NP) used for the channel region in inverted coplanar setup in Thin Film Transistors (TFT) were the focus of this study. The regions between the source electrode and the ZnO NP and the drain electrode were under investigation as they produce a Schottky barrier in metal-semiconductor interfaces. A more general Thermionic emission theory must be evaluated: one that considers both metal/semiconductor interfaces (MSM structures). Aluminum, gold, and nickel were used as metallization layers for source and drain electrodes. An organic-inorganic nanocomposite was used as a gate dielectric. The TFTs transfer and output characteristics curves were extracted, and a numerical computational program was used for fitting the data; hence information about Schottky Barrier Height (SBH) and ideality factors for each TFT could be estimated. The nickel metallization appears with the lowest SBH among the metals investigated. For this metal and for higher drain-to-source voltages, the SBH tended to converge to some value around 0.3 eV. The developed fitting method showed good fitting accuracy even when the metallization produced different SBH in each metal-semiconductor interface, as was the case for gold metallization. The Schottky effect is also present and was studied when the drain-to-source voltages and/or the gate voltage were increased."}],"user_id":"20179","type":"journal_article","citation":{"apa":"Kaufmann, I. R., Zerey, O., Meyers, T., Reker, J., Vidor, F., & Hilleringmann, U. (2021). A Study about Schottky Barrier Height and Ideality Factor in Thin Film Transistors with Metal/Zinc Oxide Nanoparticles Structures Aiming Flexible Electronics Application. Nanomaterials, 11(5), Article 1188. https://doi.org/10.3390/nano11051188","ama":"Kaufmann IR, Zerey O, Meyers T, Reker J, Vidor F, Hilleringmann U. A Study about Schottky Barrier Height and Ideality Factor in Thin Film Transistors with Metal/Zinc Oxide Nanoparticles Structures Aiming Flexible Electronics Application. Nanomaterials. 2021;11(5). doi:10.3390/nano11051188","chicago":"Kaufmann, Ivan Rodrigo, Onur Zerey, Thorsten Meyers, Julia Reker, Fábio Vidor, and Ulrich Hilleringmann. “A Study about Schottky Barrier Height and Ideality Factor in Thin Film Transistors with Metal/Zinc Oxide Nanoparticles Structures Aiming Flexible Electronics Application.” Nanomaterials 11, no. 5 (2021). https://doi.org/10.3390/nano11051188.","mla":"Kaufmann, Ivan Rodrigo, et al. “A Study about Schottky Barrier Height and Ideality Factor in Thin Film Transistors with Metal/Zinc Oxide Nanoparticles Structures Aiming Flexible Electronics Application.” Nanomaterials, vol. 11, no. 5, 1188, MDPI AG, 2021, doi:10.3390/nano11051188.","bibtex":"@article{Kaufmann_Zerey_Meyers_Reker_Vidor_Hilleringmann_2021, title={A Study about Schottky Barrier Height and Ideality Factor in Thin Film Transistors with Metal/Zinc Oxide Nanoparticles Structures Aiming Flexible Electronics Application}, volume={11}, DOI={10.3390/nano11051188}, number={51188}, journal={Nanomaterials}, publisher={MDPI AG}, author={Kaufmann, Ivan Rodrigo and Zerey, Onur and Meyers, Thorsten and Reker, Julia and Vidor, Fábio and Hilleringmann, Ulrich}, year={2021} }","short":"I.R. Kaufmann, O. Zerey, T. Meyers, J. Reker, F. Vidor, U. Hilleringmann, Nanomaterials 11 (2021).","ieee":"I. R. Kaufmann, O. Zerey, T. Meyers, J. Reker, F. Vidor, and U. Hilleringmann, “A Study about Schottky Barrier Height and Ideality Factor in Thin Film Transistors with Metal/Zinc Oxide Nanoparticles Structures Aiming Flexible Electronics Application,” Nanomaterials, vol. 11, no. 5, Art. no. 1188, 2021, doi: 10.3390/nano11051188."},"year":"2021","intvolume":" 11","_id":"39383","issue":"5","article_number":"1188","department":[{"_id":"59"}],"publication_identifier":{"issn":["2079-4991"]},"publication_status":"published","title":"A Study about Schottky Barrier Height and Ideality Factor in Thin Film Transistors with Metal/Zinc Oxide Nanoparticles Structures Aiming Flexible Electronics Application","language":[{"iso":"eng"}],"date_updated":"2023-03-22T10:27:25Z","doi":"10.3390/nano11051188"},{"type":"journal_article","citation":{"short":"J. Bürger, V.S. Kunnathully, D. Kool, J.K.N. Lindner, K. Brassat, Nanomaterials (2020).","ieee":"J. Bürger, V. S. Kunnathully, D. Kool, J. K. N. Lindner, and K. Brassat, “Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM,” Nanomaterials, 2020.","chicago":"Bürger, Julius, Vinay S. Kunnathully, Daniel Kool, Jörg K. N. Lindner, and Katharina Brassat. “Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM.” Nanomaterials, 2020. https://doi.org/10.3390/nano10010141.","ama":"Bürger J, Kunnathully VS, Kool D, Lindner JKN, Brassat K. Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM. Nanomaterials. 2020. doi:10.3390/nano10010141","apa":"Bürger, J., Kunnathully, V. S., Kool, D., Lindner, J. K. N., & Brassat, K. (2020). Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM. Nanomaterials. https://doi.org/10.3390/nano10010141","mla":"Bürger, Julius, et al. “Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM.” Nanomaterials, 141, 2020, doi:10.3390/nano10010141.","bibtex":"@article{Bürger_Kunnathully_Kool_Lindner_Brassat_2020, title={Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM}, DOI={10.3390/nano10010141}, number={141}, journal={Nanomaterials}, author={Bürger, Julius and Kunnathully, Vinay S. and Kool, Daniel and Lindner, Jörg K. N. and Brassat, Katharina}, year={2020} }"},"year":"2020","language":[{"iso":"eng"}],"doi":"10.3390/nano10010141","article_number":"141","date_updated":"2022-01-06T06:54:41Z","_id":"20893","publication_status":"published","publication_identifier":{"issn":["2079-4991"]},"date_created":"2021-01-12T08:28:16Z","status":"public","publication":"Nanomaterials","author":[{"last_name":"Bürger","first_name":"Julius","full_name":"Bürger, Julius"},{"last_name":"Kunnathully","first_name":"Vinay S.","full_name":"Kunnathully, Vinay S."},{"last_name":"Kool","first_name":"Daniel","full_name":"Kool, Daniel"},{"last_name":"Lindner","full_name":"Lindner, Jörg K. N.","first_name":"Jörg K. N."},{"last_name":"Brassat","full_name":"Brassat, Katharina","first_name":"Katharina"}],"title":"Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM","user_id":"46952","abstract":[{"text":"Block copolymer (BCP) self-assembly is a promising tool for next generation lithography as microphase separated polymer domains in thin films can act as templates for surface nanopatterning with sub-20 nm features. The replicated patterns can, however, only be as precise as their templates. Thus, the investigation of the morphology of polymer domains is of great importance. Commonly used analytical techniques (neutron scattering, scanning force microscopy) either lack spatial information or nanoscale resolution. Using advanced analytical (scanning) transmission electron microscopy ((S)TEM), we provide real space information on polymer domain morphology and interfaces between polystyrene (PS) and polymethylmethacrylate (PMMA) in cylinder- and lamellae-forming BCPs at highest resolution. This allows us to correlate the internal structure of polymer domains with line edge roughnesses, interface widths and domain sizes. STEM is employed for high-resolution imaging, electron energy loss spectroscopy and energy filtered TEM (EFTEM) spectroscopic imaging for material identification and EFTEM thickness mapping for visualisation of material densities at defects. The volume fraction of non-phase separated polymer species can be analysed by EFTEM. These methods give new insights into the morphology of polymer domains the exact knowledge of which will allow to improve pattern quality for nanolithography.","lang":"eng"}]},{"abstract":[{"text":"The aggregation of human islet amyloid polypeptide (hIAPP) plays a major role in the pathogenesis of type 2 diabetes mellitus (T2DM), and numerous strategies for controlling hIAPP aggregation have been investigated so far. In particular, several organic and inorganic nanoparticles (NPs) have shown the potential to influence the aggregation of hIAPP and other amyloidogenic proteins and peptides. In addition to conventional NPs, DNA nanostructures are receiving more and more attention from the biomedical field. Therefore, in this work, we investigated the effects of two different DNA origami nanostructures on hIAPP aggregation. To this end, we employed in situ turbidity measurements and ex situ atomic force microscopy (AFM). The turbidity measurements revealed a retarding effect of the DNA nanostructures on hIAPP aggregation, while the AFM results showed the co-aggregation of hIAPP with the DNA origami nanostructures into hybrid peptide–DNA aggregates. We assume that this was caused by strong electrostatic interactions between the negatively charged DNA origami nanostructures and the positively charged peptide. Most intriguingly, the influence of the DNA origami nanostructures on hIAPP aggregation differed from that of genomic double-stranded DNA (dsDNA) and appeared to depend on DNA origami superstructure. DNA origami nanostructures may thus represent a novel route for modulating amyloid aggregation in vivo.","lang":"eng"}],"title":"Effect of DNA Origami Nanostructures on hIAPP Aggregation","user_id":"48864","author":[{"last_name":"Hanke","first_name":"Marcel","full_name":"Hanke, Marcel"},{"last_name":"Gonzalez Orive","full_name":"Gonzalez Orive, Alejandro","first_name":"Alejandro"},{"last_name":"Grundmeier","id":"194","first_name":"Guido","full_name":"Grundmeier, Guido"},{"full_name":"Keller, Adrian","orcid":"0000-0001-7139-3110","first_name":"Adrian","id":"48864","last_name":"Keller"}],"publication":"Nanomaterials","department":[{"_id":"302"}],"publication_status":"published","volume":10,"publication_identifier":{"issn":["2079-4991"]},"status":"public","date_created":"2021-07-08T11:59:01Z","intvolume":" 10","_id":"22644","date_updated":"2022-01-06T06:55:37Z","doi":"10.3390/nano10112200","type":"journal_article","year":"2020","citation":{"ieee":"M. Hanke, A. Gonzalez Orive, G. Grundmeier, and A. Keller, “Effect of DNA Origami Nanostructures on hIAPP Aggregation,” Nanomaterials, vol. 10, p. 2200, 2020.","short":"M. Hanke, A. Gonzalez Orive, G. Grundmeier, A. Keller, Nanomaterials 10 (2020) 2200.","mla":"Hanke, Marcel, et al. “Effect of DNA Origami Nanostructures on HIAPP Aggregation.” Nanomaterials, vol. 10, 2020, p. 2200, doi:10.3390/nano10112200.","bibtex":"@article{Hanke_Gonzalez Orive_Grundmeier_Keller_2020, title={Effect of DNA Origami Nanostructures on hIAPP Aggregation}, volume={10}, DOI={10.3390/nano10112200}, journal={Nanomaterials}, author={Hanke, Marcel and Gonzalez Orive, Alejandro and Grundmeier, Guido and Keller, Adrian}, year={2020}, pages={2200} }","chicago":"Hanke, Marcel, Alejandro Gonzalez Orive, Guido Grundmeier, and Adrian Keller. “Effect of DNA Origami Nanostructures on HIAPP Aggregation.” Nanomaterials 10 (2020): 2200. https://doi.org/10.3390/nano10112200.","ama":"Hanke M, Gonzalez Orive A, Grundmeier G, Keller A. Effect of DNA Origami Nanostructures on hIAPP Aggregation. Nanomaterials. 2020;10:2200. doi:10.3390/nano10112200","apa":"Hanke, M., Gonzalez Orive, A., Grundmeier, G., & Keller, A. (2020). Effect of DNA Origami Nanostructures on hIAPP Aggregation. Nanomaterials, 10, 2200. https://doi.org/10.3390/nano10112200"},"page":"2200","language":[{"iso":"eng"}]},{"issue":"1","article_number":"141","_id":"34092","intvolume":" 10","type":"journal_article","citation":{"ieee":"J. Bürger, V. Kunnathully, D. Kool, J. Lindner, and K. Brassat, “Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM,” Nanomaterials, vol. 10, no. 1, Art. no. 141, 2020, doi: 10.3390/nano10010141.","short":"J. Bürger, V. Kunnathully, D. Kool, J. Lindner, K. Brassat, Nanomaterials 10 (2020).","bibtex":"@article{Bürger_Kunnathully_Kool_Lindner_Brassat_2020, title={Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM}, volume={10}, DOI={10.3390/nano10010141}, number={1141}, journal={Nanomaterials}, publisher={MDPI AG}, author={Bürger, Julius and Kunnathully, Vinay and Kool, Daniel and Lindner, Jörg and Brassat, Katharina}, year={2020} }","mla":"Bürger, Julius, et al. “Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM.” Nanomaterials, vol. 10, no. 1, 141, MDPI AG, 2020, doi:10.3390/nano10010141.","chicago":"Bürger, Julius, Vinay Kunnathully, Daniel Kool, Jörg Lindner, and Katharina Brassat. “Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM.” Nanomaterials 10, no. 1 (2020). https://doi.org/10.3390/nano10010141.","ama":"Bürger J, Kunnathully V, Kool D, Lindner J, Brassat K. Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM. Nanomaterials. 2020;10(1). doi:10.3390/nano10010141","apa":"Bürger, J., Kunnathully, V., Kool, D., Lindner, J., & Brassat, K. (2020). Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM. Nanomaterials, 10(1), Article 141. https://doi.org/10.3390/nano10010141"},"year":"2020","user_id":"77496","abstract":[{"text":"Block copolymer (BCP) self-assembly is a promising tool for next generation lithography as microphase separated polymer domains in thin films can act as templates for surface nanopatterning with sub-20 nm features. The replicated patterns can, however, only be as precise as their templates. Thus, the investigation of the morphology of polymer domains is of great importance. Commonly used analytical techniques (neutron scattering, scanning force microscopy) either lack spatial information or nanoscale resolution. Using advanced analytical (scanning) transmission electron microscopy ((S)TEM), we provide real space information on polymer domain morphology and interfaces between polystyrene (PS) and polymethylmethacrylate (PMMA) in cylinder- and lamellae-forming BCPs at highest resolution. This allows us to correlate the internal structure of polymer domains with line edge roughnesses, interface widths and domain sizes. STEM is employed for high-resolution imaging, electron energy loss spectroscopy and energy filtered TEM (EFTEM) spectroscopic imaging for material identification and EFTEM thickness mapping for visualisation of material densities at defects. The volume fraction of non-phase separated polymer species can be analysed by EFTEM. These methods give new insights into the morphology of polymer domains the exact knowledge of which will allow to improve pattern quality for nanolithography.","lang":"eng"}],"status":"public","date_created":"2022-11-15T14:20:33Z","volume":10,"publisher":"MDPI AG","author":[{"first_name":"Julius","full_name":"Bürger, Julius","last_name":"Bürger","id":"46952"},{"last_name":"Kunnathully","first_name":"Vinay","full_name":"Kunnathully, Vinay"},{"first_name":"Daniel","full_name":"Kool, Daniel","last_name":"Kool","id":"44586"},{"last_name":"Lindner","id":"20797","first_name":"Jörg","full_name":"Lindner, Jörg"},{"id":"11305","last_name":"Brassat","full_name":"Brassat, Katharina","first_name":"Katharina"}],"publication":"Nanomaterials","keyword":["General Materials Science","General Chemical Engineering"],"doi":"10.3390/nano10010141","date_updated":"2023-01-10T12:11:57Z","language":[{"iso":"eng"}],"title":"Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM","publication_status":"published","publication_identifier":{"issn":["2079-4991"]},"department":[{"_id":"15"},{"_id":"230"}]},{"publication":"Nanomaterials","keyword":["General Materials Science","General Chemical Engineering"],"publisher":"MDPI AG","author":[{"last_name":"Zhang","first_name":"Bingru","full_name":"Zhang, Bingru"},{"first_name":"Kevin","full_name":"Martens, Kevin","last_name":"Martens"},{"last_name":"Kneer","full_name":"Kneer, Luisa","first_name":"Luisa"},{"first_name":"Timon","full_name":"Funck, Timon","last_name":"Funck"},{"full_name":"Nguyen, Linh","first_name":"Linh","last_name":"Nguyen"},{"first_name":"Ricarda","full_name":"Berger, Ricarda","last_name":"Berger"},{"last_name":"Dass","first_name":"Mihir","full_name":"Dass, Mihir"},{"first_name":"Susanne","full_name":"Kempter, Susanne","last_name":"Kempter"},{"last_name":"Schmidtke","full_name":"Schmidtke, Jürgen","first_name":"Jürgen"},{"last_name":"Liedl","full_name":"Liedl, Tim","first_name":"Tim"},{"id":"254","last_name":"Kitzerow","full_name":"Kitzerow, Heinz-Siegfried","first_name":"Heinz-Siegfried"}],"date_created":"2023-01-10T14:01:14Z","status":"public","volume":10,"abstract":[{"text":"Rod-like and sheet-like nano-particles made of desoxyribonucleic acid (DNA) fabricated by the DNA origami method (base sequence-controlled self-organized folding of DNA) are dispersed in a lyotropic chromonic liquid crystal made of an aqueous solution of disodium cromoglycate. The respective liquid crystalline nanodispersions are doped with a dichroic fluorescent dye and their orientational order parameter is studied by means of polarized fluorescence spectroscopy. The presence of the nano-particles is found to slightly reduce the orientational order parameter of the nematic mesophase. Nano-rods with a large length/width ratio tend to preserve the orientational order, while more compact stiff nano-rods and especially nano-sheets reduce the order parameter to a larger extent. In spite of the difference between the sizes of the DNA nano-particles and the rod-like columnar aggregates forming the liquid crystal, a similarity between the shapes of the former and the latter seems to be better compatible with the orientational order of the liquid crystal.","lang":"eng"}],"user_id":"254","year":"2020","citation":{"apa":"Zhang, B., Martens, K., Kneer, L., Funck, T., Nguyen, L., Berger, R., Dass, M., Kempter, S., Schmidtke, J., Liedl, T., & Kitzerow, H.-S. (2020). DNA Origami Nano-Sheets and Nano-Rods Alter the Orientational Order in a Lyotropic Chromonic Liquid Crystal. Nanomaterials, 10(9), Article 1695. https://doi.org/10.3390/nano10091695","ama":"Zhang B, Martens K, Kneer L, et al. DNA Origami Nano-Sheets and Nano-Rods Alter the Orientational Order in a Lyotropic Chromonic Liquid Crystal. Nanomaterials. 2020;10(9). doi:10.3390/nano10091695","chicago":"Zhang, Bingru, Kevin Martens, Luisa Kneer, Timon Funck, Linh Nguyen, Ricarda Berger, Mihir Dass, et al. “DNA Origami Nano-Sheets and Nano-Rods Alter the Orientational Order in a Lyotropic Chromonic Liquid Crystal.” Nanomaterials 10, no. 9 (2020). https://doi.org/10.3390/nano10091695.","mla":"Zhang, Bingru, et al. “DNA Origami Nano-Sheets and Nano-Rods Alter the Orientational Order in a Lyotropic Chromonic Liquid Crystal.” Nanomaterials, vol. 10, no. 9, 1695, MDPI AG, 2020, doi:10.3390/nano10091695.","bibtex":"@article{Zhang_Martens_Kneer_Funck_Nguyen_Berger_Dass_Kempter_Schmidtke_Liedl_et al._2020, title={DNA Origami Nano-Sheets and Nano-Rods Alter the Orientational Order in a Lyotropic Chromonic Liquid Crystal}, volume={10}, DOI={10.3390/nano10091695}, number={91695}, journal={Nanomaterials}, publisher={MDPI AG}, author={Zhang, Bingru and Martens, Kevin and Kneer, Luisa and Funck, Timon and Nguyen, Linh and Berger, Ricarda and Dass, Mihir and Kempter, Susanne and Schmidtke, Jürgen and Liedl, Tim and et al.}, year={2020} }","short":"B. Zhang, K. Martens, L. Kneer, T. Funck, L. Nguyen, R. Berger, M. Dass, S. Kempter, J. Schmidtke, T. Liedl, H.-S. Kitzerow, Nanomaterials 10 (2020).","ieee":"B. Zhang et al., “DNA Origami Nano-Sheets and Nano-Rods Alter the Orientational Order in a Lyotropic Chromonic Liquid Crystal,” Nanomaterials, vol. 10, no. 9, Art. no. 1695, 2020, doi: 10.3390/nano10091695."},"type":"journal_article","intvolume":" 10","_id":"35868","issue":"9","article_number":"1695","department":[{"_id":"313"}],"publication_status":"published","publication_identifier":{"issn":["2079-4991"]},"title":"DNA Origami Nano-Sheets and Nano-Rods Alter the Orientational Order in a Lyotropic Chromonic Liquid Crystal","language":[{"iso":"eng"}],"date_updated":"2023-01-24T17:17:14Z","doi":"10.3390/nano10091695"},{"article_number":"1210","_id":"25901","year":"2020","citation":{"short":"M. Wortmann, N. Frese, A. Mamun, M. Trabelsi, W. Keil, B. Büker, A. Javed, M. Tiemann, E. Moritzer, A. Ehrmann, A. Hütten, C. Schmidt, A. Gölzhäuser, B. Hüsgen, L. Sabantina, Nanomaterials (2020).","ieee":"M. Wortmann et al., “Chemical and Morphological Transition of Poly(acrylonitrile)/Poly(vinylidene Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization,” Nanomaterials, Art. no. 1210, 2020, doi: 10.3390/nano10061210.","ama":"Wortmann M, Frese N, Mamun A, et al. Chemical and Morphological Transition of Poly(acrylonitrile)/Poly(vinylidene Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization. Nanomaterials. Published online 2020. doi:10.3390/nano10061210","apa":"Wortmann, M., Frese, N., Mamun, A., Trabelsi, M., Keil, W., Büker, B., Javed, A., Tiemann, M., Moritzer, E., Ehrmann, A., Hütten, A., Schmidt, C., Gölzhäuser, A., Hüsgen, B., & Sabantina, L. (2020). Chemical and Morphological Transition of Poly(acrylonitrile)/Poly(vinylidene Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization. Nanomaterials, Article 1210. https://doi.org/10.3390/nano10061210","chicago":"Wortmann, Martin, Natalie Frese, Al Mamun, Marah Trabelsi, Waldemar Keil, Björn Büker, Ali Javed, et al. “Chemical and Morphological Transition of Poly(Acrylonitrile)/Poly(Vinylidene Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization.” Nanomaterials, 2020. https://doi.org/10.3390/nano10061210.","bibtex":"@article{Wortmann_Frese_Mamun_Trabelsi_Keil_Büker_Javed_Tiemann_Moritzer_Ehrmann_et al._2020, title={Chemical and Morphological Transition of Poly(acrylonitrile)/Poly(vinylidene Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization}, DOI={10.3390/nano10061210}, number={1210}, journal={Nanomaterials}, author={Wortmann, Martin and Frese, Natalie and Mamun, Al and Trabelsi, Marah and Keil, Waldemar and Büker, Björn and Javed, Ali and Tiemann, Michael and Moritzer, Elmar and Ehrmann, Andrea and et al.}, year={2020} }","mla":"Wortmann, Martin, et al. “Chemical and Morphological Transition of Poly(Acrylonitrile)/Poly(Vinylidene Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization.” Nanomaterials, 1210, 2020, doi:10.3390/nano10061210."},"type":"journal_article","main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2079-4991/10/6/1210/pdf?version=1592726383"}],"user_id":"23547","abstract":[{"lang":"eng","text":"Thermally stabilized and subsequently carbonized nanofibers are a promising material for many technical applications in fields such as tissue engineering or energy storage. They can be obtained from a variety of different polymer precursors via electrospinning. While some methods have been tested for post-carbonization doping of nanofibers with the desired ingredients, very little is known about carbonization of blend nanofibers from two or more polymeric precursors. In this paper, we report on the preparation, thermal treatment and resulting properties of poly(acrylonitrile) (PAN)/poly(vinylidene fluoride) (PVDF) blend nanofibers produced by wire-based electrospinning of binary polymer solutions. Using a wide variety of spectroscopic, microscopic and thermal characterization methods, the chemical and morphological transition during oxidative stabilization (280 °C) and incipient carbonization (500 °C) was thoroughly investigated. Both PAN and PVDF precursor polymers were detected and analyzed qualitatively and quantitatively during all stages of thermal treatment. Compared to pure PAN nanofibers, the blend nanofibers showed increased fiber diameters, strong reduction of undesired morphological changes during oxidative stabilization and increased conductivity after carbonization."}],"article_type":"original","date_created":"2021-10-08T10:36:26Z","status":"public","publication":"Nanomaterials","author":[{"first_name":"Martin","full_name":"Wortmann, Martin","last_name":"Wortmann"},{"first_name":"Natalie","full_name":"Frese, Natalie","last_name":"Frese"},{"first_name":"Al","full_name":"Mamun, Al","last_name":"Mamun"},{"last_name":"Trabelsi","first_name":"Marah","full_name":"Trabelsi, Marah"},{"first_name":"Waldemar","full_name":"Keil, Waldemar","last_name":"Keil"},{"first_name":"Björn","full_name":"Büker, Björn","last_name":"Büker"},{"last_name":"Javed","first_name":"Ali","full_name":"Javed, Ali"},{"first_name":"Michael","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael","last_name":"Tiemann","id":"23547"},{"last_name":"Moritzer","id":"20531","first_name":"Elmar","full_name":"Moritzer, Elmar"},{"last_name":"Ehrmann","first_name":"Andrea","full_name":"Ehrmann, Andrea"},{"first_name":"Andreas","full_name":"Hütten, Andreas","last_name":"Hütten"},{"first_name":"Claudia","full_name":"Schmidt, Claudia","orcid":"0000-0003-3179-9997","last_name":"Schmidt","id":"466"},{"first_name":"Armin","full_name":"Gölzhäuser, Armin","last_name":"Gölzhäuser"},{"full_name":"Hüsgen, Bruno","first_name":"Bruno","last_name":"Hüsgen"},{"full_name":"Sabantina, Lilia","first_name":"Lilia","last_name":"Sabantina"}],"quality_controlled":"1","oa":"1","doi":"10.3390/nano10061210","date_updated":"2023-03-08T08:18:03Z","language":[{"iso":"eng"}],"title":"Chemical and Morphological Transition of Poly(acrylonitrile)/Poly(vinylidene Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization","publication_identifier":{"issn":["2079-4991"]},"publication_status":"published","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"315"},{"_id":"232"}]},{"language":[{"iso":"eng"}],"date_updated":"2023-03-08T08:22:31Z","oa":"1","doi":"10.3390/nano10071263","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"publication_identifier":{"issn":["2079-4991"]},"publication_status":"published","title":"Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74","main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2079-4991/10/7/1263/pdf?version=1594009427"}],"year":"2020","type":"journal_article","citation":{"short":"A. Javed, I. Strauss, H. Bunzen, J. Caro, M. Tiemann, Nanomaterials (2020).","ieee":"A. Javed, I. Strauss, H. Bunzen, J. Caro, and M. Tiemann, “Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74,” Nanomaterials, Art. no. 1263, 2020, doi: 10.3390/nano10071263.","apa":"Javed, A., Strauss, I., Bunzen, H., Caro, J., & Tiemann, M. (2020). Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74. Nanomaterials, Article 1263. https://doi.org/10.3390/nano10071263","ama":"Javed A, Strauss I, Bunzen H, Caro J, Tiemann M. Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74. Nanomaterials. Published online 2020. doi:10.3390/nano10071263","chicago":"Javed, Ali, Ina Strauss, Hana Bunzen, Jürgen Caro, and Michael Tiemann. “Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74.” Nanomaterials, 2020. https://doi.org/10.3390/nano10071263.","mla":"Javed, Ali, et al. “Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74.” Nanomaterials, 1263, 2020, doi:10.3390/nano10071263.","bibtex":"@article{Javed_Strauss_Bunzen_Caro_Tiemann_2020, title={Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74}, DOI={10.3390/nano10071263}, number={1263}, journal={Nanomaterials}, author={Javed, Ali and Strauss, Ina and Bunzen, Hana and Caro, Jürgen and Tiemann, Michael}, year={2020} }"},"_id":"25899","article_number":"1263","publication":"Nanomaterials","author":[{"first_name":"Ali","full_name":"Javed, Ali","last_name":"Javed"},{"full_name":"Strauss, Ina","first_name":"Ina","last_name":"Strauss"},{"first_name":"Hana","full_name":"Bunzen, Hana","last_name":"Bunzen"},{"last_name":"Caro","first_name":"Jürgen","full_name":"Caro, Jürgen"},{"full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","first_name":"Michael","id":"23547","last_name":"Tiemann"}],"quality_controlled":"1","date_created":"2021-10-08T10:33:26Z","status":"public","abstract":[{"lang":"eng","text":"Large Co-MOF-74 crystals of a few hundred micrometers were prepared by solvothermal synthesis, and their structure and morphology were characterized by scanning electron microscopy (SEM), IR, and Raman spectroscopy. The hydrothermal stability of the material up to 60 °C at 93% relative humidity was verified by temperature-dependent XRD. Proton conductivity was studied by impedance spectroscopy, using a single crystal. By varying the relative humidity (70–95%), temperature (21–60 °C), and orientation of the crystal relative to the electrical potential, it was found that proton conduction occurs predominantly through the linear, unidirectional (1D) micropore channels of Co-MOF-74, and that water molecules inside the channels are responsible for the proton mobility by a Grotthuss-type mechanism."}],"article_type":"original","user_id":"23547"},{"abstract":[{"text":"This Special Issue on “Functional Nanoporous Materials” in the MDPI journal nanomaterials features seven original papers ...","lang":"eng"}],"article_type":"original","user_id":"23547","publication":"Nanomaterials","author":[{"full_name":"Weinberger, Christian","first_name":"Christian","id":"11848","last_name":"Weinberger"},{"id":"23547","last_name":"Tiemann","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael","first_name":"Michael"}],"date_created":"2021-10-08T10:37:54Z","status":"public","_id":"25902","article_number":"699","main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2079-4991/10/4/699/pdf?version=1586249724"}],"year":"2020","type":"journal_article","citation":{"short":"C. Weinberger, M. Tiemann, Nanomaterials (2020).","ieee":"C. Weinberger and M. Tiemann, “Functional Nanoporous Materials,” Nanomaterials, Art. no. 699, 2020, doi: 10.3390/nano10040699.","apa":"Weinberger, C., & Tiemann, M. (2020). Functional Nanoporous Materials. Nanomaterials, Article 699. https://doi.org/10.3390/nano10040699","ama":"Weinberger C, Tiemann M. Functional Nanoporous Materials. Nanomaterials. Published online 2020. doi:10.3390/nano10040699","chicago":"Weinberger, Christian, and Michael Tiemann. “Functional Nanoporous Materials.” Nanomaterials, 2020. https://doi.org/10.3390/nano10040699.","mla":"Weinberger, Christian, and Michael Tiemann. “Functional Nanoporous Materials.” Nanomaterials, 699, 2020, doi:10.3390/nano10040699.","bibtex":"@article{Weinberger_Tiemann_2020, title={Functional Nanoporous Materials}, DOI={10.3390/nano10040699}, number={699}, journal={Nanomaterials}, author={Weinberger, Christian and Tiemann, Michael}, year={2020} }"},"title":"Functional Nanoporous Materials","department":[{"_id":"2"},{"_id":"307"},{"_id":"35"}],"publication_identifier":{"issn":["2079-4991"]},"publication_status":"published","date_updated":"2023-03-08T08:27:09Z","doi":"10.3390/nano10040699","oa":"1","language":[{"iso":"eng"}]},{"language":[{"iso":"eng"}],"oa":"1","doi":"10.3390/nano9020249","date_updated":"2023-03-08T08:32:12Z","publication_status":"published","publication_identifier":{"issn":["2079-4991"]},"department":[{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"315"}],"title":"Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction","type":"journal_article","citation":{"chicago":"Weinberger, Christian, Tatjana Heckel, Patrick Schnippering, Markus Schmitz, Anpeng Guo, Waldemar Keil, Heinrich C. Marsmann, Claudia Schmidt, Michael Tiemann, and René Wilhelm. “Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction.” Nanomaterials, 2019. https://doi.org/10.3390/nano9020249.","ama":"Weinberger C, Heckel T, Schnippering P, et al. Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction. Nanomaterials. Published online 2019. doi:10.3390/nano9020249","apa":"Weinberger, C., Heckel, T., Schnippering, P., Schmitz, M., Guo, A., Keil, W., Marsmann, H. C., Schmidt, C., Tiemann, M., & Wilhelm, R. (2019). Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction. Nanomaterials, Article 249. https://doi.org/10.3390/nano9020249","bibtex":"@article{Weinberger_Heckel_Schnippering_Schmitz_Guo_Keil_Marsmann_Schmidt_Tiemann_Wilhelm_2019, title={Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction}, DOI={10.3390/nano9020249}, number={249}, journal={Nanomaterials}, author={Weinberger, Christian and Heckel, Tatjana and Schnippering, Patrick and Schmitz, Markus and Guo, Anpeng and Keil, Waldemar and Marsmann, Heinrich C. and Schmidt, Claudia and Tiemann, Michael and Wilhelm, René}, year={2019} }","mla":"Weinberger, Christian, et al. “Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction.” Nanomaterials, 249, 2019, doi:10.3390/nano9020249.","short":"C. Weinberger, T. Heckel, P. Schnippering, M. Schmitz, A. Guo, W. Keil, H.C. Marsmann, C. Schmidt, M. Tiemann, R. Wilhelm, Nanomaterials (2019).","ieee":"C. Weinberger et al., “Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction,” Nanomaterials, Art. no. 249, 2019, doi: 10.3390/nano9020249."},"year":"2019","main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2079-4991/9/2/249/pdf?version=1550901386"}],"article_number":"249","_id":"25907","status":"public","date_created":"2021-10-08T10:44:56Z","author":[{"first_name":"Christian","full_name":"Weinberger, Christian","last_name":"Weinberger","id":"11848"},{"full_name":"Heckel, Tatjana","first_name":"Tatjana","last_name":"Heckel"},{"full_name":"Schnippering, Patrick","first_name":"Patrick","last_name":"Schnippering"},{"last_name":"Schmitz","first_name":"Markus","full_name":"Schmitz, Markus"},{"first_name":"Anpeng","full_name":"Guo, Anpeng","last_name":"Guo"},{"first_name":"Waldemar","full_name":"Keil, Waldemar","last_name":"Keil"},{"last_name":"Marsmann","full_name":"Marsmann, Heinrich C.","first_name":"Heinrich C."},{"id":"466","last_name":"Schmidt","full_name":"Schmidt, Claudia","orcid":"0000-0003-3179-9997","first_name":"Claudia"},{"last_name":"Tiemann","id":"23547","first_name":"Michael","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael"},{"full_name":"Wilhelm, René","first_name":"René","last_name":"Wilhelm"}],"quality_controlled":"1","publication":"Nanomaterials","user_id":"23547","article_type":"original","abstract":[{"text":"The combined benefits of moisture-stable phosphonic acids and mesoporous silica materials (SBA-15 and MCM-41) as large-surface-area solid supports offer new opportunities for several applications, such as catalysis or drug delivery. We present a comprehensive study of a straightforward synthesis method via direct immobilization of several phosphonic acids and phosphoric acid esters on various mesoporous silicas in a Dean–Stark apparatus with toluene as the solvent. Due to the utilization of azeotropic distillation, there was no need to dry phosphonic acids, phosphoric acid esters, solvents, or silicas prior to synthesis. In addition to modeling phosphonic acids, immobilization of the important biomolecule adenosine monophosphate (AMP) on the porous supports was also investigated. Due to the high surface area of the mesoporous silicas, a possible catalytic application based on immobilization of an organocatalyst for an asymmetric aldol reaction is discussed.","lang":"eng"}]},{"date_created":"2021-10-08T10:48:59Z","status":"public","publication":"Nanomaterials","author":[{"last_name":"Chen","first_name":"Zimei","full_name":"Chen, Zimei"},{"id":"287","last_name":"Kuckling","full_name":"Kuckling, Dirk","first_name":"Dirk"},{"orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael","first_name":"Michael","id":"23547","last_name":"Tiemann"}],"quality_controlled":"1","user_id":"23547","abstract":[{"lang":"eng","text":"We describe the synthesis of mesoporous Al2O3 and MgO layers on silicon wafer substrates by using poly(dimethylacrylamide) hydrogels as porogenic matrices. Hydrogel films are prepared by spreading the polymer through spin-coating, followed by photo-cross-linking and anchoring to the substrate surface. The metal oxides are obtained by swelling the hydrogels in the respective metal nitrate solutions and subsequent thermal conversion. Combustion of the hydrogel results in mesoporous metal oxide layers with thicknesses in the μm range and high specific surface areas up to 558 m2∙g−1. Materials are characterized by SEM, FIB ablation, EDX, and Kr physisorption porosimetry."}],"article_type":"original","citation":{"bibtex":"@article{Chen_Kuckling_Tiemann_2018, title={Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices}, DOI={10.3390/nano8040186}, number={186}, journal={Nanomaterials}, author={Chen, Zimei and Kuckling, Dirk and Tiemann, Michael}, year={2018} }","mla":"Chen, Zimei, et al. “Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices.” Nanomaterials, 186, 2018, doi:10.3390/nano8040186.","ama":"Chen Z, Kuckling D, Tiemann M. Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices. Nanomaterials. Published online 2018. doi:10.3390/nano8040186","apa":"Chen, Z., Kuckling, D., & Tiemann, M. (2018). Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices. Nanomaterials, Article 186. https://doi.org/10.3390/nano8040186","chicago":"Chen, Zimei, Dirk Kuckling, and Michael Tiemann. “Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices.” Nanomaterials, 2018. https://doi.org/10.3390/nano8040186.","ieee":"Z. Chen, D. Kuckling, and M. Tiemann, “Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices,” Nanomaterials, Art. no. 186, 2018, doi: 10.3390/nano8040186.","short":"Z. Chen, D. Kuckling, M. Tiemann, Nanomaterials (2018)."},"year":"2018","type":"journal_article","main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2079-4991/8/4/186/pdf?version=1525344745"}],"article_number":"186","_id":"25910","publication_identifier":{"issn":["2079-4991"]},"publication_status":"published","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"311"}],"title":"Porous Aluminum Oxide and Magnesium Oxide Films Using Organic Hydrogels as Structure Matrices","language":[{"iso":"eng"}],"oa":"1","doi":"10.3390/nano8040186","date_updated":"2023-03-08T10:22:33Z"},{"_id":"39467","intvolume":" 6","issue":"9","article_number":"154","type":"journal_article","year":"2016","citation":{"mla":"Vidor, Fábio, et al. “Inverter Circuits Using ZnO Nanoparticle Based Thin-Film Transistors for Flexible Electronic Applications.” Nanomaterials, vol. 6, no. 9, 154, MDPI AG, 2016, doi:10.3390/nano6090154.","bibtex":"@article{Vidor_Meyers_Hilleringmann_2016, title={Inverter Circuits Using ZnO Nanoparticle Based Thin-Film Transistors for Flexible Electronic Applications}, volume={6}, DOI={10.3390/nano6090154}, number={9154}, journal={Nanomaterials}, publisher={MDPI AG}, author={Vidor, Fábio and Meyers, Thorsten and Hilleringmann, Ulrich}, year={2016} }","apa":"Vidor, F., Meyers, T., & Hilleringmann, U. (2016). Inverter Circuits Using ZnO Nanoparticle Based Thin-Film Transistors for Flexible Electronic Applications. Nanomaterials, 6(9), Article 154. https://doi.org/10.3390/nano6090154","ama":"Vidor F, Meyers T, Hilleringmann U. Inverter Circuits Using ZnO Nanoparticle Based Thin-Film Transistors for Flexible Electronic Applications. Nanomaterials. 2016;6(9). doi:10.3390/nano6090154","chicago":"Vidor, Fábio, Thorsten Meyers, and Ulrich Hilleringmann. “Inverter Circuits Using ZnO Nanoparticle Based Thin-Film Transistors for Flexible Electronic Applications.” Nanomaterials 6, no. 9 (2016). https://doi.org/10.3390/nano6090154.","ieee":"F. Vidor, T. Meyers, and U. Hilleringmann, “Inverter Circuits Using ZnO Nanoparticle Based Thin-Film Transistors for Flexible Electronic Applications,” Nanomaterials, vol. 6, no. 9, Art. no. 154, 2016, doi: 10.3390/nano6090154.","short":"F. Vidor, T. Meyers, U. Hilleringmann, Nanomaterials 6 (2016)."},"user_id":"20179","publication":"Nanomaterials","keyword":["General Materials Science","General Chemical Engineering"],"publisher":"MDPI AG","author":[{"full_name":"Vidor, Fábio","first_name":"Fábio","last_name":"Vidor"},{"last_name":"Meyers","first_name":"Thorsten","full_name":"Meyers, Thorsten"},{"last_name":"Hilleringmann","id":"20179","first_name":"Ulrich","full_name":"Hilleringmann, Ulrich"}],"date_created":"2023-01-24T11:15:22Z","status":"public","volume":6,"date_updated":"2023-03-22T10:22:33Z","doi":"10.3390/nano6090154","language":[{"iso":"eng"}],"title":"Inverter Circuits Using ZnO Nanoparticle Based Thin-Film Transistors for Flexible Electronic Applications","department":[{"_id":"59"}],"publication_identifier":{"issn":["2079-4991"]},"publication_status":"published"},{"author":[{"first_name":"Christian","full_name":"Weinberger, Christian","last_name":"Weinberger","id":"11848"},{"full_name":"Roggenbuck, Jan","first_name":"Jan","last_name":"Roggenbuck"},{"full_name":"Hanss, Jan","first_name":"Jan","last_name":"Hanss"},{"last_name":"Tiemann","id":"23547","first_name":"Michael","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael"}],"quality_controlled":"1","publication":"Nanomaterials","status":"public","date_created":"2021-10-08T13:49:57Z","article_type":"original","abstract":[{"lang":"eng","text":"A variety of metal nitrates were filled into the pores of an ordered mesoporous CMK-3 carbon matrix by solution-based impregnation. Thermal conversion of the metal nitrates into the respective metal oxides, and subsequent removal of the carbon matrix by thermal combustion, provides a versatile means to prepare mesoporous metal oxides (so-called nanocasting). This study aims to monitor the thermally induced processes by thermogravimetric analysis (TGA), coupled with mass ion detection (MS). The highly dispersed metal nitrates in the pores of the carbon matrix tend to react to the respective metal oxides at lower temperature than reported in the literature for pure, i.e., carbon-free, metal nitrates. The subsequent thermal combustion of the CMK-3 carbon matrix also occurs at lower temperature, which is explained by a catalytic effect of the metal oxides present in the pores. This catalytic effect is particularly strong for oxides of redox active metals, such as transition group VII and VIII metals (Mn, Fe, Co, Ni), Cu, and Ce."}],"user_id":"23547","main_file_link":[{"url":"https://www.mdpi.com/2079-4991/5/3/1431/pdf?version=1440760886","open_access":"1"}],"year":"2015","citation":{"short":"C. Weinberger, J. Roggenbuck, J. Hanss, M. Tiemann, Nanomaterials (2015) 1431–1441.","ieee":"C. Weinberger, J. Roggenbuck, J. Hanss, and M. Tiemann, “Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices,” Nanomaterials, pp. 1431–1441, 2015, doi: 10.3390/nano5031431.","chicago":"Weinberger, Christian, Jan Roggenbuck, Jan Hanss, and Michael Tiemann. “Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices.” Nanomaterials, 2015, 1431–41. https://doi.org/10.3390/nano5031431.","ama":"Weinberger C, Roggenbuck J, Hanss J, Tiemann M. Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices. Nanomaterials. Published online 2015:1431-1441. doi:10.3390/nano5031431","apa":"Weinberger, C., Roggenbuck, J., Hanss, J., & Tiemann, M. (2015). Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices. Nanomaterials, 1431–1441. https://doi.org/10.3390/nano5031431","bibtex":"@article{Weinberger_Roggenbuck_Hanss_Tiemann_2015, title={Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices}, DOI={10.3390/nano5031431}, journal={Nanomaterials}, author={Weinberger, Christian and Roggenbuck, Jan and Hanss, Jan and Tiemann, Michael}, year={2015}, pages={1431–1441} }","mla":"Weinberger, Christian, et al. “Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices.” Nanomaterials, 2015, pp. 1431–41, doi:10.3390/nano5031431."},"type":"journal_article","page":"1431-1441","_id":"25939","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"publication_status":"published","publication_identifier":{"issn":["2079-4991"]},"title":"Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices","language":[{"iso":"eng"}],"date_updated":"2023-03-08T10:29:19Z","doi":"10.3390/nano5031431","oa":"1"}]