[{"publication_identifier":{"issn":["0378-5173"]},"publication_status":"published","intvolume":"       684","citation":{"apa":"Kramer, M., van der Linde, M., Hönscheid, L., Horky, C., Völlmecke, K., Mulac, D., Herrmann, F., Kuckling, D., &#38; Langer, K. (2025). Enlightening release strategies: Accelerated nanoparticle degradation and substance release utilizing light- and pH-responsive polymers. <i>International Journal of Pharmaceutics</i>, <i>684</i>, Article 126127. <a href=\"https://doi.org/10.1016/j.ijpharm.2025.126127\">https://doi.org/10.1016/j.ijpharm.2025.126127</a>","bibtex":"@article{Kramer_van der Linde_Hönscheid_Horky_Völlmecke_Mulac_Herrmann_Kuckling_Langer_2025, title={Enlightening release strategies: Accelerated nanoparticle degradation and substance release utilizing light- and pH-responsive polymers}, volume={684}, DOI={<a href=\"https://doi.org/10.1016/j.ijpharm.2025.126127\">10.1016/j.ijpharm.2025.126127</a>}, number={126127}, journal={International Journal of Pharmaceutics}, publisher={Elsevier BV}, author={Kramer, Maurice and van der Linde, Matthias and Hönscheid, Lisa and Horky, Corinna and Völlmecke, Katharina and Mulac, Dennis and Herrmann, Fabian and Kuckling, Dirk and Langer, Klaus}, year={2025} }","mla":"Kramer, Maurice, et al. “Enlightening Release Strategies: Accelerated Nanoparticle Degradation and Substance Release Utilizing Light- and PH-Responsive Polymers.” <i>International Journal of Pharmaceutics</i>, vol. 684, 126127, Elsevier BV, 2025, doi:<a href=\"https://doi.org/10.1016/j.ijpharm.2025.126127\">10.1016/j.ijpharm.2025.126127</a>.","short":"M. Kramer, M. van der Linde, L. Hönscheid, C. Horky, K. Völlmecke, D. Mulac, F. Herrmann, D. Kuckling, K. Langer, International Journal of Pharmaceutics 684 (2025).","chicago":"Kramer, Maurice, Matthias van der Linde, Lisa Hönscheid, Corinna Horky, Katharina Völlmecke, Dennis Mulac, Fabian Herrmann, Dirk Kuckling, and Klaus Langer. “Enlightening Release Strategies: Accelerated Nanoparticle Degradation and Substance Release Utilizing Light- and PH-Responsive Polymers.” <i>International Journal of Pharmaceutics</i> 684 (2025). <a href=\"https://doi.org/10.1016/j.ijpharm.2025.126127\">https://doi.org/10.1016/j.ijpharm.2025.126127</a>.","ieee":"M. Kramer <i>et al.</i>, “Enlightening release strategies: Accelerated nanoparticle degradation and substance release utilizing light- and pH-responsive polymers,” <i>International Journal of Pharmaceutics</i>, vol. 684, Art. no. 126127, 2025, doi: <a href=\"https://doi.org/10.1016/j.ijpharm.2025.126127\">10.1016/j.ijpharm.2025.126127</a>.","ama":"Kramer M, van der Linde M, Hönscheid L, et al. Enlightening release strategies: Accelerated nanoparticle degradation and substance release utilizing light- and pH-responsive polymers. <i>International Journal of Pharmaceutics</i>. 2025;684. doi:<a href=\"https://doi.org/10.1016/j.ijpharm.2025.126127\">10.1016/j.ijpharm.2025.126127</a>"},"year":"2025","volume":684,"author":[{"first_name":"Maurice","full_name":"Kramer, Maurice","last_name":"Kramer"},{"last_name":"van der Linde","full_name":"van der Linde, Matthias","first_name":"Matthias"},{"last_name":"Hönscheid","full_name":"Hönscheid, Lisa","first_name":"Lisa"},{"first_name":"Corinna","last_name":"Horky","full_name":"Horky, Corinna"},{"last_name":"Völlmecke","full_name":"Völlmecke, Katharina","first_name":"Katharina"},{"full_name":"Mulac, Dennis","last_name":"Mulac","first_name":"Dennis"},{"first_name":"Fabian","full_name":"Herrmann, Fabian","last_name":"Herrmann"},{"first_name":"Dirk","last_name":"Kuckling","id":"287","full_name":"Kuckling, Dirk"},{"full_name":"Langer, Klaus","last_name":"Langer","first_name":"Klaus"}],"date_created":"2026-03-11T08:46:17Z","publisher":"Elsevier BV","date_updated":"2026-03-11T08:52:22Z","doi":"10.1016/j.ijpharm.2025.126127","main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S0378517325009640?via%3Dihub"}],"title":"Enlightening release strategies: Accelerated nanoparticle degradation and substance release utilizing light- and pH-responsive polymers","publication":"International Journal of Pharmaceutics","type":"journal_article","status":"public","abstract":[{"text":"To address the challenges associated with poor drug solubility and uncontrolled drug release in conventional dosage forms, a combination of polymer design and advanced drug delivery approaches has been employed. The development of pH-responsive nanoparticles for controlled and selective drug release represents a notable advance in adaptive nanomedicine. This study explores the design of a pH-responsive polymer, poly(1,4-phenyleneacetone dimethylene ketal) (PPADK). Additionally, the incorporation of light-responsive ortho-nitrobenzyl groups (o-NB-PPADK) enhanced the degradation upon exposure to light. Based on the polymer, nanoparticles were prepared using the solvent displacement method. The fluorescence dye Lumogen® Red was incorporated as a model substance. The nanoparticles were characterized by dynamic light scattering to determine their hydrodynamic diameter and size distribution, and the surface charge was analyzed. Atomic force microscopy was used to visualize the surface morphology. The nanoparticles remained stable under physiological pH conditions while exhibiting accelerated degradation and substance release in acidic environment, a property potentially exploitable for tumor targeting. Further enhanced degradation and correspondingly increased release was achieved by incorporating light-responsive elements in the polymer structure.\r\nThe cytotoxicity of these newly designed nanoparticles was evaluated in cell culture using a breast cancer cell line. These results support the potential of o-NB-PPADK nanoparticles as a possible candidate for selective and effective cancer therapy, combining stimuli-responsive degradation mechanisms for improved therapeutic outcomes.","lang":"eng"}],"department":[{"_id":"163"}],"user_id":"94","_id":"64884","language":[{"iso":"eng"}],"keyword":["Nanoparticles","Drug delivery","Controlled release","Stimuli-responsiveTumor targeting"],"article_type":"original","article_number":"126127"},{"keyword":["Flame Spray Pyrolysis","SpraySyn2","Spray flame synthesis","Maghemite nanoparticles","Gas to particle-conversion","Hole in a tube sampling"],"ddc":["660"],"language":[{"iso":"eng"}],"publication":"Applications in Energy and Combustion Science","abstract":[{"text":"In order to standardize spray flame synthesis (SFS) studies, intensive work has been done in recent years on the design of burner types. Thus, in 2019, the so-called SpraySyn1 burner was introduced (SS1), which was subsequently characterized in numerical and experimental studies. Based on this research, a modification of the nozzle design was proposed, which has now been considered in the successor model, SpraySyn2 (SS2). As little is known about the effect of the nozzle adaptation on the particle formation, we operated both burners under identical operating conditions to produce maghemite. The final powder comparison showed that SS2 yielded considerable higher specific surface areas (associated with smaller primary particle sizes), lower polydispersity, and higher phase purity. To obtain further information on the size distributions of aggregates and agglomerates generated by SS2, aerosol samples were extracted by hole in a tube (HIAT) sampling and characterized by scanning mobility particle sizing (SMPS). Samples were extracted along the centerline at different heights above the burner (HAB) above the visible flame tip (>7 cm), and quenching experiments were performed to extract the aerosol samples at different dilution rates. Thereby, it was demonstrated that performing detailed quenching experiments is crucial for obtaining representative HIAT-SMPS data. In particular, agglomerates/aggregate sizes were overestimated by up to ~70 % if samples were not sufficiently diluted. If sufficient dilution was applied, distribution widths and mean particle mobility diameters were determined with high accuracy (sample standard derivation <5 %). Our data suggested the evolution of primary particle sizes was mostly completed <7 cm HAB and it was shown aggregates/agglomerates present above the visible flame were compact in structure (non- fractal). The mean diameter of the particle ensemble grew along the centerline from 6.9 nm (7 cm) to 11.4 nm (15 cm), while distribution widths grew from 1.42 to 1.52.","lang":"eng"}],"publisher":"Elsevier","date_created":"2024-02-05T12:02:57Z","title":"Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)","year":"2024","_id":"51133","department":[{"_id":"150"}],"user_id":"98419","type":"journal_editor","editor":[{"first_name":"Ricardo","full_name":"Tischendorf, Ricardo","id":"67002","last_name":"Tischendorf"},{"first_name":"Orlando","last_name":"Massopo","full_name":"Massopo, Orlando","id":"98419"},{"first_name":"Hans-Joachim","full_name":"Schmid, Hans-Joachim","id":"464","last_name":"Schmid","orcid":"000-0001-8590-1921"},{"first_name":"Olek","last_name":"Pyrmak","full_name":"Pyrmak, Olek"},{"first_name":"Sophie","last_name":"Dupont","full_name":"Dupont, Sophie"},{"last_name":"Fröde","full_name":"Fröde, Fabian","first_name":"Fabian"},{"first_name":"Heinz","last_name":"Pitsch","full_name":"Pitsch, Heinz"},{"first_name":"Reinhold","full_name":"Kneer, Reinhold","last_name":"Kneer"}],"status":"public","date_updated":"2024-02-05T12:25:00Z","doi":"https://doi.org/10.1016/j.jaecs.2023.100235","main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S2666352X23001243?ref=cra_js_challenge&fr=RR-1"}],"has_accepted_license":"1","publication_status":"published","citation":{"chicago":"Tischendorf, Ricardo, Orlando Massopo, Hans-Joachim Schmid, Olek Pyrmak, Sophie Dupont, Fabian Fröde, Heinz Pitsch, and Reinhold Kneer, eds. <i>Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS)</i>. <i>Applications in Energy and Combustion Science</i>. Elsevier, 2024. <a href=\"https://doi.org/10.1016/j.jaecs.2023.100235\">https://doi.org/10.1016/j.jaecs.2023.100235</a>.","ieee":"R. Tischendorf <i>et al.</i>, Eds., <i>Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)</i>. Elsevier, 2024.","ama":"Tischendorf R, Massopo O, Schmid H-J, et al., eds. <i>Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS)</i>. Elsevier; 2024. doi:<a href=\"https://doi.org/10.1016/j.jaecs.2023.100235\">https://doi.org/10.1016/j.jaecs.2023.100235</a>","bibtex":"@book{Tischendorf_Massopo_Schmid_Pyrmak_Dupont_Fröde_Pitsch_Kneer_2024, title={Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)}, DOI={<a href=\"https://doi.org/10.1016/j.jaecs.2023.100235\">https://doi.org/10.1016/j.jaecs.2023.100235</a>}, journal={Applications in Energy and Combustion Science}, publisher={Elsevier}, year={2024} }","mla":"Tischendorf, Ricardo, et al., editors. “Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS).” <i>Applications in Energy and Combustion Science</i>, Elsevier, 2024, doi:<a href=\"https://doi.org/10.1016/j.jaecs.2023.100235\">https://doi.org/10.1016/j.jaecs.2023.100235</a>.","short":"R. Tischendorf, O. Massopo, H.-J. Schmid, O. Pyrmak, S. Dupont, F. Fröde, H. Pitsch, R. Kneer, eds., Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS), Elsevier, 2024.","apa":"Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS). (2024). In R. Tischendorf, O. Massopo, H.-J. Schmid, O. Pyrmak, S. Dupont, F. Fröde, H. Pitsch, &#38; R. Kneer (Eds.), <i>Applications in Energy and Combustion Science</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.jaecs.2023.100235\">https://doi.org/10.1016/j.jaecs.2023.100235</a>"}},{"type":"conference_abstract","file":[{"date_updated":"2023-01-18T14:41:47Z","creator":"jludwig","date_created":"2023-01-18T14:41:47Z","file_size":130697,"file_id":"37425","access_level":"closed","file_name":"Abstract_Particle_Gas.pdf","content_type":"application/pdf","success":1,"relation":"main_file"}],"status":"public","_id":"37424","user_id":"45788","department":[{"_id":"150"},{"_id":"9"}],"ddc":["660"],"keyword":["clean air","harmful gas removal","denitrification","SCR","catalytic filtration","nanoparticles","flame-synthesis"],"language":[{"iso":"eng"}],"file_date_updated":"2023-01-18T14:41:47Z","has_accepted_license":"1","year":"2022","citation":{"ama":"Beimdiek J, Schmid H-J. A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster). In: ; 2022.","chicago":"Beimdiek, Janis, and Hans-Joachim Schmid. “A Combined Flue Gas Cleaning System with a Novel Entrained Flow SCR Using an Online Synthesized Catalyst (Poster),” 2022.","ieee":"J. Beimdiek and H.-J. Schmid, “A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster),” presented at the 1st International Workshop on Reacting Particle-Gas Systems, Bochum, 2022.","short":"J. Beimdiek, H.-J. Schmid, in: 2022.","mla":"Beimdiek, Janis, and Hans-Joachim Schmid. <i>A Combined Flue Gas Cleaning System with a Novel Entrained Flow SCR Using an Online Synthesized Catalyst (Poster)</i>. 2022.","bibtex":"@inproceedings{Beimdiek_Schmid_2022, title={A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster)}, author={Beimdiek, Janis and Schmid, Hans-Joachim}, year={2022} }","apa":"Beimdiek, J., &#38; Schmid, H.-J. (2022). <i>A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster)</i>. 1st International Workshop on Reacting Particle-Gas Systems, Bochum."},"date_updated":"2023-03-14T08:26:40Z","author":[{"first_name":"Janis","last_name":"Beimdiek","full_name":"Beimdiek, Janis","id":"45788"},{"id":"464","full_name":"Schmid, Hans-Joachim","orcid":"000-0001-8590-1921","last_name":"Schmid","first_name":"Hans-Joachim"}],"date_created":"2023-01-18T14:42:17Z","title":"A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster)","conference":{"end_date":"2022-06-09","location":"Bochum","name":"1st International Workshop on Reacting Particle-Gas Systems","start_date":"2022-06-08"}},{"date_updated":"2023-03-14T08:28:49Z","author":[{"id":"45788","full_name":"Beimdiek, Janis","last_name":"Beimdiek","first_name":"Janis"},{"first_name":"Hans-Joachim","orcid":"000-0001-8590-1921","last_name":"Schmid","id":"464","full_name":"Schmid, Hans-Joachim"}],"date_created":"2023-01-18T15:10:06Z","title":"Novel entrained flow SCR using online synthesized catalyst particles (Poster)","conference":{"start_date":"2022-10-05","name":"13th World Filtration Congress","location":"San Diego","end_date":"2022-10-09"},"has_accepted_license":"1","year":"2022","citation":{"chicago":"Beimdiek, Janis, and Hans-Joachim Schmid. “Novel Entrained Flow SCR Using Online Synthesized Catalyst Particles (Poster),” 2022.","ieee":"J. Beimdiek and H.-J. Schmid, “Novel entrained flow SCR using online synthesized catalyst particles (Poster),” presented at the 13th World Filtration Congress, San Diego, 2022.","ama":"Beimdiek J, Schmid H-J. Novel entrained flow SCR using online synthesized catalyst particles (Poster). In: ; 2022.","bibtex":"@inproceedings{Beimdiek_Schmid_2022, title={Novel entrained flow SCR using online synthesized catalyst particles (Poster)}, author={Beimdiek, Janis and Schmid, Hans-Joachim}, year={2022} }","mla":"Beimdiek, Janis, and Hans-Joachim Schmid. <i>Novel Entrained Flow SCR Using Online Synthesized Catalyst Particles (Poster)</i>. 2022.","short":"J. Beimdiek, H.-J. Schmid, in: 2022.","apa":"Beimdiek, J., &#38; Schmid, H.-J. (2022). <i>Novel entrained flow SCR using online synthesized catalyst particles (Poster)</i>. 13th World Filtration Congress, San Diego."},"_id":"37432","user_id":"45788","department":[{"_id":"150"},{"_id":"9"}],"ddc":["660"],"keyword":["clean air","harmful gas removal","denitrification","SCR","catalytic filtration","nanoparticles","flame-synthesis"],"file_date_updated":"2023-02-01T09:25:32Z","language":[{"iso":"eng"}],"type":"conference_abstract","file":[{"file_name":"Abstract_Poster_WFC2022.pdf","access_level":"closed","file_id":"41352","file_size":98157,"date_created":"2023-02-01T09:25:32Z","creator":"jludwig","date_updated":"2023-02-01T09:25:32Z","relation":"main_file","success":1,"content_type":"application/pdf"}],"status":"public"},{"publication_status":"published","publication_identifier":{"issn":["2637-6105","2637-6105"]},"citation":{"apa":"Rust, T., Jung, D., Hoppe, A., Schoppa, T., Langer, K., &#38; Kuckling, D. (2021). Backbone-Degradable (Co-)Polymers for Light-Triggered Drug Delivery. <i>ACS Applied Polymer Materials</i>, <i>3</i>(8), 3831–3842. <a href=\"https://doi.org/10.1021/acsapm.1c00411\">https://doi.org/10.1021/acsapm.1c00411</a>","short":"T. Rust, D. Jung, A. Hoppe, T. Schoppa, K. Langer, D. Kuckling, ACS Applied Polymer Materials 3 (2021) 3831–3842.","bibtex":"@article{Rust_Jung_Hoppe_Schoppa_Langer_Kuckling_2021, title={Backbone-Degradable (Co-)Polymers for Light-Triggered Drug Delivery}, volume={3}, DOI={<a href=\"https://doi.org/10.1021/acsapm.1c00411\">10.1021/acsapm.1c00411</a>}, number={8}, journal={ACS Applied Polymer Materials}, publisher={American Chemical Society (ACS)}, author={Rust, Tarik and Jung, Dimitri and Hoppe, Axel and Schoppa, Timo and Langer, Klaus and Kuckling, Dirk}, year={2021}, pages={3831–3842} }","mla":"Rust, Tarik, et al. “Backbone-Degradable (Co-)Polymers for Light-Triggered Drug Delivery.” <i>ACS Applied Polymer Materials</i>, vol. 3, no. 8, American Chemical Society (ACS), 2021, pp. 3831–42, doi:<a href=\"https://doi.org/10.1021/acsapm.1c00411\">10.1021/acsapm.1c00411</a>.","chicago":"Rust, Tarik, Dimitri Jung, Axel Hoppe, Timo Schoppa, Klaus Langer, and Dirk Kuckling. “Backbone-Degradable (Co-)Polymers for Light-Triggered Drug Delivery.” <i>ACS Applied Polymer Materials</i> 3, no. 8 (2021): 3831–42. <a href=\"https://doi.org/10.1021/acsapm.1c00411\">https://doi.org/10.1021/acsapm.1c00411</a>.","ieee":"T. Rust, D. Jung, A. Hoppe, T. Schoppa, K. Langer, and D. Kuckling, “Backbone-Degradable (Co-)Polymers for Light-Triggered Drug Delivery,” <i>ACS Applied Polymer Materials</i>, vol. 3, no. 8, pp. 3831–3842, 2021, doi: <a href=\"https://doi.org/10.1021/acsapm.1c00411\">10.1021/acsapm.1c00411</a>.","ama":"Rust T, Jung D, Hoppe A, Schoppa T, Langer K, Kuckling D. Backbone-Degradable (Co-)Polymers for Light-Triggered Drug Delivery. <i>ACS Applied Polymer Materials</i>. 2021;3(8):3831-3842. doi:<a href=\"https://doi.org/10.1021/acsapm.1c00411\">10.1021/acsapm.1c00411</a>"},"intvolume":"         3","page":"3831-3842","date_updated":"2025-04-22T06:12:02Z","author":[{"last_name":"Rust","full_name":"Rust, Tarik","first_name":"Tarik"},{"first_name":"Dimitri","last_name":"Jung","full_name":"Jung, Dimitri"},{"id":"62844","full_name":"Hoppe, Axel","last_name":"Hoppe","first_name":"Axel"},{"first_name":"Timo","last_name":"Schoppa","full_name":"Schoppa, Timo"},{"first_name":"Klaus","full_name":"Langer, Klaus","last_name":"Langer"},{"first_name":"Dirk","id":"287","full_name":"Kuckling, Dirk","last_name":"Kuckling"}],"volume":3,"main_file_link":[{"url":"https://pubs.acs.org/doi/10.1021/acsapm.1c00411?ref=PDF"}],"doi":"10.1021/acsapm.1c00411","type":"journal_article","status":"public","_id":"59620","user_id":"62844","department":[{"_id":"311"}],"article_type":"original","quality_controlled":"1","issue":"8","year":"2021","publisher":"American Chemical Society (ACS)","date_created":"2025-04-22T06:02:11Z","title":"Backbone-Degradable (Co-)Polymers for Light-Triggered Drug Delivery","publication":"ACS Applied Polymer Materials","keyword":["backbone-degradable","light-responsive","redox-responsive","drug delivery","nanoparticles"],"language":[{"iso":"eng"}]},{"abstract":[{"lang":"eng","text":"The electrical double‐layer plays a key role in important interfacial electrochemical processes from catalysis to energy storage and corrosion. Therefore, understanding its structure is crucial for the progress of sustainable technologies. We extract new physico‐chemical information on the capacitance and structure of the electrical double‐layer of platinum and gold nanoparticles at the molecular level, employing single nanoparticle electrochemistry. The charge storage ability of the solid/liquid interface is larger by one order‐of‐magnitude than predicted by the traditional mean‐field models of the double‐layer such as the Gouy–Chapman–Stern model. Performing molecular dynamics simulations, we investigate the possible relationship between the measured high capacitance and adsorption strength of the water adlayer formed at the metal surface. These insights may launch the active tuning of solid–solvent and solvent–solvent interactions as an innovative design strategy to transform energy technologies towards superior performance and sustainability."}],"publication":"Angewandte Chemie International Edition","language":[{"iso":"eng"}],"keyword":["single-entity electrochemistry","electrical double layer","supercapacitor","nanoparticles"],"year":"2021","issue":"5","quality_controlled":"1","title":"Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer","date_created":"2025-12-03T15:39:25Z","publisher":"Wiley","status":"public","type":"journal_article","extern":"1","article_type":"original","article_number":"e202112679","user_id":"116779","department":[{"_id":"985"}],"_id":"62806","citation":{"chicago":"Azimzadeh Sani, Mahnaz, Nicholas G. Pavlopoulos, Simone Pezzotti, Alessandra Serva, Paolo Cignoni, Julia Linnemann, Mathieu Salanne, Marie‐Pierre Gaigeot, and Kristina Tschulik. “Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer.” <i>Angewandte Chemie International Edition</i> 61, no. 5 (2021). <a href=\"https://doi.org/10.1002/anie.202112679\">https://doi.org/10.1002/anie.202112679</a>.","ieee":"M. Azimzadeh Sani <i>et al.</i>, “Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer,” <i>Angewandte Chemie International Edition</i>, vol. 61, no. 5, Art. no. e202112679, 2021, doi: <a href=\"https://doi.org/10.1002/anie.202112679\">10.1002/anie.202112679</a>.","ama":"Azimzadeh Sani M, Pavlopoulos NG, Pezzotti S, et al. Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer. <i>Angewandte Chemie International Edition</i>. 2021;61(5). doi:<a href=\"https://doi.org/10.1002/anie.202112679\">10.1002/anie.202112679</a>","apa":"Azimzadeh Sani, M., Pavlopoulos, N. G., Pezzotti, S., Serva, A., Cignoni, P., Linnemann, J., Salanne, M., Gaigeot, M., &#38; Tschulik, K. (2021). Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer. <i>Angewandte Chemie International Edition</i>, <i>61</i>(5), Article e202112679. <a href=\"https://doi.org/10.1002/anie.202112679\">https://doi.org/10.1002/anie.202112679</a>","short":"M. Azimzadeh Sani, N.G. Pavlopoulos, S. Pezzotti, A. Serva, P. Cignoni, J. Linnemann, M. Salanne, M. Gaigeot, K. Tschulik, Angewandte Chemie International Edition 61 (2021).","mla":"Azimzadeh Sani, Mahnaz, et al. “Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer.” <i>Angewandte Chemie International Edition</i>, vol. 61, no. 5, e202112679, Wiley, 2021, doi:<a href=\"https://doi.org/10.1002/anie.202112679\">10.1002/anie.202112679</a>.","bibtex":"@article{Azimzadeh Sani_Pavlopoulos_Pezzotti_Serva_Cignoni_Linnemann_Salanne_Gaigeot_Tschulik_2021, title={Unexpectedly High Capacitance of the Metal Nanoparticle/Water Interface: Molecular‐Level Insights into the Electrical Double Layer}, volume={61}, DOI={<a href=\"https://doi.org/10.1002/anie.202112679\">10.1002/anie.202112679</a>}, number={5e202112679}, journal={Angewandte Chemie International Edition}, publisher={Wiley}, author={Azimzadeh Sani, Mahnaz and Pavlopoulos, Nicholas G. and Pezzotti, Simone and Serva, Alessandra and Cignoni, Paolo and Linnemann, Julia and Salanne, Mathieu and Gaigeot, Marie‐Pierre and Tschulik, Kristina}, year={2021} }"},"intvolume":"        61","publication_status":"published","publication_identifier":{"issn":["1433-7851","1521-3773"]},"main_file_link":[{"open_access":"1"}],"doi":"10.1002/anie.202112679","author":[{"last_name":"Azimzadeh Sani","full_name":"Azimzadeh Sani, Mahnaz","first_name":"Mahnaz"},{"first_name":"Nicholas G.","last_name":"Pavlopoulos","full_name":"Pavlopoulos, Nicholas G."},{"first_name":"Simone","full_name":"Pezzotti, Simone","last_name":"Pezzotti"},{"full_name":"Serva, Alessandra","last_name":"Serva","first_name":"Alessandra"},{"first_name":"Paolo","last_name":"Cignoni","full_name":"Cignoni, Paolo"},{"first_name":"Julia","last_name":"Linnemann","orcid":"0000-0001-6883-5424","id":"116779","full_name":"Linnemann, Julia"},{"first_name":"Mathieu","last_name":"Salanne","full_name":"Salanne, Mathieu"},{"full_name":"Gaigeot, Marie‐Pierre","last_name":"Gaigeot","first_name":"Marie‐Pierre"},{"first_name":"Kristina","last_name":"Tschulik","full_name":"Tschulik, Kristina"}],"volume":61,"date_updated":"2025-12-03T16:31:54Z","oa":"1"},{"intvolume":"       377","page":"662–672","citation":{"ama":"Neumann S, Gutmann T, Buntkowsky G, et al. Insights into the reaction mechanism and particle size effects of CO oxidation over supported Pt nanoparticle catalysts. <i>Journal of Catalysis</i>. 2019;377:662–672. doi:<a href=\"https://doi.org/10.1016/j.jcat.2019.07.049\">10.1016/j.jcat.2019.07.049</a>","ieee":"S. Neumann <i>et al.</i>, “Insights into the reaction mechanism and particle size effects of CO oxidation over supported Pt nanoparticle catalysts,” <i>Journal of Catalysis</i>, vol. 377, pp. 662–672, 2019, doi: <a href=\"https://doi.org/10.1016/j.jcat.2019.07.049\">10.1016/j.jcat.2019.07.049</a>.","chicago":"Neumann, Sarah, Torsten Gutmann, Gerd Buntkowsky, Stephen Paul, Greg Thiele, Heiko Sievers, Marcus Bäumer, and Sebastian Kunz. “Insights into the Reaction Mechanism and Particle Size Effects of CO Oxidation over Supported Pt Nanoparticle Catalysts.” <i>Journal of Catalysis</i> 377 (2019): 662–672. <a href=\"https://doi.org/10.1016/j.jcat.2019.07.049\">https://doi.org/10.1016/j.jcat.2019.07.049</a>.","bibtex":"@article{Neumann_Gutmann_Buntkowsky_Paul_Thiele_Sievers_Bäumer_Kunz_2019, title={Insights into the reaction mechanism and particle size effects of CO oxidation over supported Pt nanoparticle catalysts}, volume={377}, DOI={<a href=\"https://doi.org/10.1016/j.jcat.2019.07.049\">10.1016/j.jcat.2019.07.049</a>}, journal={Journal of Catalysis}, author={Neumann, Sarah and Gutmann, Torsten and Buntkowsky, Gerd and Paul, Stephen and Thiele, Greg and Sievers, Heiko and Bäumer, Marcus and Kunz, Sebastian}, year={2019}, pages={662–672} }","short":"S. Neumann, T. Gutmann, G. Buntkowsky, S. Paul, G. Thiele, H. Sievers, M. Bäumer, S. Kunz, Journal of Catalysis 377 (2019) 662–672.","mla":"Neumann, Sarah, et al. “Insights into the Reaction Mechanism and Particle Size Effects of CO Oxidation over Supported Pt Nanoparticle Catalysts.” <i>Journal of Catalysis</i>, vol. 377, 2019, pp. 662–672, doi:<a href=\"https://doi.org/10.1016/j.jcat.2019.07.049\">10.1016/j.jcat.2019.07.049</a>.","apa":"Neumann, S., Gutmann, T., Buntkowsky, G., Paul, S., Thiele, G., Sievers, H., Bäumer, M., &#38; Kunz, S. (2019). Insights into the reaction mechanism and particle size effects of CO oxidation over supported Pt nanoparticle catalysts. <i>Journal of Catalysis</i>, <i>377</i>, 662–672. <a href=\"https://doi.org/10.1016/j.jcat.2019.07.049\">https://doi.org/10.1016/j.jcat.2019.07.049</a>"},"year":"2019","doi":"10.1016/j.jcat.2019.07.049","title":"Insights into the reaction mechanism and particle size effects of CO oxidation over supported Pt nanoparticle catalysts","volume":377,"date_created":"2026-02-07T16:02:06Z","author":[{"first_name":"Sarah","full_name":"Neumann, Sarah","last_name":"Neumann"},{"first_name":"Torsten","full_name":"Gutmann, Torsten","id":"118165","last_name":"Gutmann"},{"first_name":"Gerd","full_name":"Buntkowsky, Gerd","last_name":"Buntkowsky"},{"full_name":"Paul, Stephen","last_name":"Paul","first_name":"Stephen"},{"full_name":"Thiele, Greg","last_name":"Thiele","first_name":"Greg"},{"last_name":"Sievers","full_name":"Sievers, Heiko","first_name":"Heiko"},{"first_name":"Marcus","last_name":"Bäumer","full_name":"Bäumer, Marcus"},{"first_name":"Sebastian","full_name":"Kunz, Sebastian","last_name":"Kunz"}],"date_updated":"2026-02-17T16:14:45Z","status":"public","abstract":[{"lang":"eng","text":"CO oxidation is an extensively studied reaction in heterogeneous catalysis due to its seeming simplicity and its great importance for emission control. However, the role of particle size and more specifically structure sensitivity in this reaction is still controversial. In the present study, colloidal “surfactant-free” Pt nanoparticles (NPs) in a size regime of 1–4 nm with narrow size distribution and control over particle size were synthesized and subsequently supported on Al2O3 to prepare model catalysts. CO oxidation was performed using Pt NPs catalysts with particles sizes of 1, 2, 3, and 4 nm at different reaction temperatures. It is shown that the reaction exhibits a particle size effect that depends strongly on the reaction conditions. At 170 °C, the reaction seems to proceed within the same kinetic regime for all particle sizes, but the surface normalized activity depends strongly on the particle size, with maximum activity for nanoparticles 2 nm in diameter. A temperature increase to 200 °C leads to a change of the kinetic regime that depends on the particle size. For Pt NPs 1 nm in diameter a reaction order of 1 for O2 was observed, indicating that O2 adsorbs molecularly and dissociates in a following step, which represents the generally accepted mechanism on Pt surfaces. The reaction order of −1 for CO demonstrates that the surface is saturated with CO under reaction conditions. With increasing particle size, the reaction orders of O2 and CO change. For particles 2 nm in size, an increase in temperature also results in reaction orders of 1 for O2 and −1 for CO; NPs of 3 and 4 nm, even at higher temperatures, show no clear kinetic behavior that can be explained by a single reaction mechanism. Instead, the Boudouard reaction between two adjacent adsorbed CO molecules was identified as an important additional reaction pathway that occurs preferentially on large particles and causes more complex kinetics."}],"publication":"Journal of Catalysis","type":"journal_article","extern":"1","language":[{"iso":"eng"}],"keyword":["Solid state NMR","“Surfactant-free” platinum nanoparticles","CO oxidation","Particle size effect","Structure sensitivity"],"user_id":"100715","_id":"64018"},{"doi":"10.1039/c9cy00684b","title":"Room temperature CO oxidation catalysed by supported Pt nanoparticles revealed by solid-state NMR and DNP spectroscopy","volume":9,"author":[{"first_name":"V.","full_name":"Klimavicius, V.","last_name":"Klimavicius"},{"first_name":"S.","last_name":"Neumann","full_name":"Neumann, S."},{"full_name":"Kunz, S.","last_name":"Kunz","first_name":"S."},{"full_name":"Gutmann, Torsten","id":"118165","last_name":"Gutmann","first_name":"Torsten"},{"first_name":"G.","last_name":"Buntkowsky","full_name":"Buntkowsky, G."}],"date_created":"2026-02-07T15:47:21Z","date_updated":"2026-02-17T16:16:33Z","intvolume":"         9","page":"3743–3752","citation":{"ieee":"V. Klimavicius, S. Neumann, S. Kunz, T. Gutmann, and G. Buntkowsky, “Room temperature CO oxidation catalysed by supported Pt nanoparticles revealed by solid-state NMR and DNP spectroscopy,” <i>Catalysis Science &#38; Technology</i>, vol. 9, no. 14, pp. 3743–3752, 2019, doi: <a href=\"https://doi.org/10.1039/c9cy00684b\">10.1039/c9cy00684b</a>.","chicago":"Klimavicius, V., S. Neumann, S. Kunz, Torsten Gutmann, and G. Buntkowsky. “Room Temperature CO Oxidation Catalysed by Supported Pt Nanoparticles Revealed by Solid-State NMR and DNP Spectroscopy.” <i>Catalysis Science &#38; Technology</i> 9, no. 14 (2019): 3743–3752. <a href=\"https://doi.org/10.1039/c9cy00684b\">https://doi.org/10.1039/c9cy00684b</a>.","ama":"Klimavicius V, Neumann S, Kunz S, Gutmann T, Buntkowsky G. Room temperature CO oxidation catalysed by supported Pt nanoparticles revealed by solid-state NMR and DNP spectroscopy. <i>Catalysis Science &#38; Technology</i>. 2019;9(14):3743–3752. doi:<a href=\"https://doi.org/10.1039/c9cy00684b\">10.1039/c9cy00684b</a>","mla":"Klimavicius, V., et al. “Room Temperature CO Oxidation Catalysed by Supported Pt Nanoparticles Revealed by Solid-State NMR and DNP Spectroscopy.” <i>Catalysis Science &#38; Technology</i>, vol. 9, no. 14, 2019, pp. 3743–3752, doi:<a href=\"https://doi.org/10.1039/c9cy00684b\">10.1039/c9cy00684b</a>.","bibtex":"@article{Klimavicius_Neumann_Kunz_Gutmann_Buntkowsky_2019, title={Room temperature CO oxidation catalysed by supported Pt nanoparticles revealed by solid-state NMR and DNP spectroscopy}, volume={9}, DOI={<a href=\"https://doi.org/10.1039/c9cy00684b\">10.1039/c9cy00684b</a>}, number={14}, journal={Catalysis Science &#38; Technology}, author={Klimavicius, V. and Neumann, S. and Kunz, S. and Gutmann, Torsten and Buntkowsky, G.}, year={2019}, pages={3743–3752} }","short":"V. Klimavicius, S. Neumann, S. Kunz, T. Gutmann, G. Buntkowsky, Catalysis Science &#38; Technology 9 (2019) 3743–3752.","apa":"Klimavicius, V., Neumann, S., Kunz, S., Gutmann, T., &#38; Buntkowsky, G. (2019). Room temperature CO oxidation catalysed by supported Pt nanoparticles revealed by solid-state NMR and DNP spectroscopy. <i>Catalysis Science &#38; Technology</i>, <i>9</i>(14), 3743–3752. <a href=\"https://doi.org/10.1039/c9cy00684b\">https://doi.org/10.1039/c9cy00684b</a>"},"year":"2019","issue":"14","publication_identifier":{"issn":["2044-4753"]},"language":[{"iso":"eng"}],"extern":"1","keyword":["Chemistry","gamma-alumina","hydrogenation","silica","c-13","interactions","metal-catalysts","particle-size","platinum nanoparticles","sites","surface","water-gas shift"],"user_id":"100715","_id":"63991","status":"public","abstract":[{"text":"A series of 1 and 2 nm sized platinum nanoparticles (Pt-NPs) deposited on different support materials, namely, gamma-alumina (gamma-Al2O3), titanium dioxide (TiO2), silicon dioxide (SiO2) and fumed silica are investigated by solid-state NMR and dynamic nuclear polarization enhanced NMR spectroscopy (DNP). DNP signal enhancement factors up to 170 enable gaining deeper insight into the surface chemistry of Pt-NPs. Carbon monoxide is used as a probe molecule to analyze the adsorption process and the surface chemistry on the supported Pt-NPs. The studied systems show significant catalytic activity in carbon monoxide oxidation on their surface at room temperature. The underlying catalytic mechanism is the water-gas shift reaction. In the case of alumina as the support the produced CO2 reacts with the surface to form carbonate, which is revealed by solid-state NMR. A similar carbonate formation is also observed when physical mixtures of neat alumina with silica, fumed silica and titania supported Pt-NPs are studied.","lang":"eng"}],"publication":"Catalysis Science & Technology","type":"journal_article"},{"language":[{"iso":"eng"}],"extern":"1","keyword":["Materials Science","Science & Technology - Other Topics","solid-state nmr","spectroscopy","catalysts","colloidal crystals","colloids","cross-linking","elastomeric opal films","emulsion polymerization","gamma-methacryloxypropyltrimethoxysilane","hybrid films","melt-shear organization","nanoparticles","particle","photons","polymers","processing","self-assembly","transition"],"user_id":"100715","_id":"64053","status":"public","abstract":[{"lang":"eng","text":"The utilization and preparation of functional hybrid films for optical sensing applications and membranes is of utmost importance. In this work, we report the convenient and scalable preparation of self-crosslinking particle-based films derived by directed self-assembly of alkoxysilane-based cross-linkers as part of a core-shell particle architecture. The synthesis of well-designed monodisperse core-shell particles by emulsion polymerization is the basic prerequisite for subsequent particle processing via the melt-shear organization technique. In more detail, the core particles consist of polystyrene (PS) or poly(methyl methacrylate) (PMMA), while the comparably soft particle shell consists of poly(ethyl acrylate) (PEA) and different alkoxysilane-based poly(methacrylate)s. For hybrid film formation and convenient self-cross-linking, different alkyl groups at the siloxane moieties were investigated in detail by solid-state Magic-Angle Spinning Nuclear Magnetic Resonance (MAS, NMR) spectroscopy revealing different crosslinking capabilities, which strongly influence the properties of the core or shell particle films with respect to transparency and iridescent reflection colors. Furthermore, solid-state NMR spectroscopy and investigation of the thermal properties by differential scanning calorimetry (DSC) measurements allow for insights into the cross-linking capabilities prior to and after synthesis, as well as after the thermally and pressure-induced processing steps. Subsequently, free-standing and self-crosslinked particle-based films featuring excellent particle order are obtained by application of the melt-shear organization technique, as shown by microscopy (TEM, SEM)."}],"publication":"Nanomaterials","type":"journal_article","doi":"10.3390/nano7110390","title":"Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing","volume":7,"author":[{"first_name":"S.","full_name":"Vowinkel, S.","last_name":"Vowinkel"},{"first_name":"S.","full_name":"Paul, S.","last_name":"Paul"},{"first_name":"Torsten","full_name":"Gutmann, Torsten","id":"118165","last_name":"Gutmann"},{"first_name":"M.","full_name":"Gallei, M.","last_name":"Gallei"}],"date_created":"2026-02-07T16:15:23Z","date_updated":"2026-02-17T16:12:54Z","page":"390","intvolume":"         7","citation":{"apa":"Vowinkel, S., Paul, S., Gutmann, T., &#38; Gallei, M. (2017). Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing. <i>Nanomaterials</i>, <i>7</i>(11), 390. <a href=\"https://doi.org/10.3390/nano7110390\">https://doi.org/10.3390/nano7110390</a>","bibtex":"@article{Vowinkel_Paul_Gutmann_Gallei_2017, title={Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing}, volume={7}, DOI={<a href=\"https://doi.org/10.3390/nano7110390\">10.3390/nano7110390</a>}, number={11}, journal={Nanomaterials}, author={Vowinkel, S. and Paul, S. and Gutmann, Torsten and Gallei, M.}, year={2017}, pages={390} }","short":"S. Vowinkel, S. Paul, T. Gutmann, M. Gallei, Nanomaterials 7 (2017) 390.","mla":"Vowinkel, S., et al. “Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing.” <i>Nanomaterials</i>, vol. 7, no. 11, 2017, p. 390, doi:<a href=\"https://doi.org/10.3390/nano7110390\">10.3390/nano7110390</a>.","chicago":"Vowinkel, S., S. Paul, Torsten Gutmann, and M. Gallei. “Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing.” <i>Nanomaterials</i> 7, no. 11 (2017): 390. <a href=\"https://doi.org/10.3390/nano7110390\">https://doi.org/10.3390/nano7110390</a>.","ieee":"S. Vowinkel, S. Paul, T. Gutmann, and M. Gallei, “Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing,” <i>Nanomaterials</i>, vol. 7, no. 11, p. 390, 2017, doi: <a href=\"https://doi.org/10.3390/nano7110390\">10.3390/nano7110390</a>.","ama":"Vowinkel S, Paul S, Gutmann T, Gallei M. Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing. <i>Nanomaterials</i>. 2017;7(11):390. doi:<a href=\"https://doi.org/10.3390/nano7110390\">10.3390/nano7110390</a>"},"year":"2017","issue":"11","publication_identifier":{"issn":["2079-4991"]}},{"date_created":"2026-02-07T16:16:37Z","author":[{"full_name":"Wang, Yonggui","last_name":"Wang","first_name":"Yonggui"},{"full_name":"Groszewicz, Pedro B.","last_name":"Groszewicz","first_name":"Pedro B."},{"first_name":"Sabine","full_name":"Rosenfeldt, Sabine","last_name":"Rosenfeldt"},{"first_name":"Hendrik","last_name":"Schmidt","full_name":"Schmidt, Hendrik"},{"first_name":"Cynthia A.","full_name":"Volkert, Cynthia A.","last_name":"Volkert"},{"full_name":"Vana, Philipp","last_name":"Vana","first_name":"Philipp"},{"first_name":"Torsten","full_name":"Gutmann, Torsten","id":"118165","last_name":"Gutmann"},{"full_name":"Buntkowsky, Gerd","last_name":"Buntkowsky","first_name":"Gerd"},{"last_name":"Zhang","full_name":"Zhang, Kai","first_name":"Kai"}],"date_updated":"2026-02-17T16:12:48Z","doi":"10.1002/adma.201702473","title":"Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State","page":"1702473","citation":{"bibtex":"@article{Wang_Groszewicz_Rosenfeldt_Schmidt_Volkert_Vana_Gutmann_Buntkowsky_Zhang_2017, title={Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State}, DOI={<a href=\"https://doi.org/10.1002/adma.201702473\">10.1002/adma.201702473</a>}, journal={Advanced Materials}, author={Wang, Yonggui and Groszewicz, Pedro B. and Rosenfeldt, Sabine and Schmidt, Hendrik and Volkert, Cynthia A. and Vana, Philipp and Gutmann, Torsten and Buntkowsky, Gerd and Zhang, Kai}, year={2017}, pages={1702473} }","mla":"Wang, Yonggui, et al. “Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State.” <i>Advanced Materials</i>, 2017, p. 1702473, doi:<a href=\"https://doi.org/10.1002/adma.201702473\">10.1002/adma.201702473</a>.","short":"Y. Wang, P.B. Groszewicz, S. Rosenfeldt, H. Schmidt, C.A. Volkert, P. Vana, T. Gutmann, G. Buntkowsky, K. Zhang, Advanced Materials (2017) 1702473.","apa":"Wang, Y., Groszewicz, P. B., Rosenfeldt, S., Schmidt, H., Volkert, C. A., Vana, P., Gutmann, T., Buntkowsky, G., &#38; Zhang, K. (2017). Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State. <i>Advanced Materials</i>, 1702473. <a href=\"https://doi.org/10.1002/adma.201702473\">https://doi.org/10.1002/adma.201702473</a>","ieee":"Y. Wang <i>et al.</i>, “Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State,” <i>Advanced Materials</i>, p. 1702473, 2017, doi: <a href=\"https://doi.org/10.1002/adma.201702473\">10.1002/adma.201702473</a>.","chicago":"Wang, Yonggui, Pedro B. Groszewicz, Sabine Rosenfeldt, Hendrik Schmidt, Cynthia A. Volkert, Philipp Vana, Torsten Gutmann, Gerd Buntkowsky, and Kai Zhang. “Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State.” <i>Advanced Materials</i>, 2017, 1702473. <a href=\"https://doi.org/10.1002/adma.201702473\">https://doi.org/10.1002/adma.201702473</a>.","ama":"Wang Y, Groszewicz PB, Rosenfeldt S, et al. Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State. <i>Advanced Materials</i>. Published online 2017:1702473. doi:<a href=\"https://doi.org/10.1002/adma.201702473\">10.1002/adma.201702473</a>"},"year":"2017","user_id":"100715","_id":"64057","extern":"1","language":[{"iso":"eng"}],"keyword":["nanoparticles","self-assembly","cellulose","core-coronas structure","thermoreversible"],"publication":"Advanced Materials","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"Self-assembly of nanoparticles (NPs) forming unique structures has been investigated extensively over the past few years. However, many self-assembled structures by NPs are irreversible, because they are generally constructed using their suspensions. It is still challenging for NPs to reversibly self-assemble in dry state, let alone of polymeric NPs with general sizes of hundreds of nm. Herein, this study reports a new reversible self-assembly phenomenon of NPs in dry state, forming thermoreversible strip-like supermolecular structures. These novel NPs of around 150 nm are perfluorinated surface-undecenoated cellulose nanoparticles (FSU-CNPs) with a core-coronas structure. The thermoreversible self-assembled structure is formed after drying in the air at the interface between FSU-CNP films and Teflon substrates. Remarkably, the formation and dissociation of this assembled structure are accompanied by a reversible conversion of the surface hydrophobicity, film transparency, and anisotropic properties. These findings show novel feasibility of reversible self-assembly of NPs in dry state, and thereby expand our knowledge of self-assembly phenomenon."}]}]