--- _id: '63227' abstract: - lang: eng text: Using a precise electrochemical quartz crystal microbalance (EQCM), it was shown that electrogravimetry can be carried out with microelectrode arrays (MEAs). Significant differences between the potential dependent adsorption of a redox-active molecule and electroplating were presented. article_type: original author: - first_name: Michael full_name: Biermann, Michael last_name: Biermann - first_name: Christian full_name: Leppin, Christian id: '117722' last_name: Leppin - first_name: Arne full_name: Langhoff, Arne last_name: Langhoff - first_name: Thorben full_name: Ziemer, Thorben last_name: Ziemer - first_name: Christian full_name: Rembe, Christian last_name: Rembe - first_name: Diethelm full_name: Johannsmann, Diethelm last_name: Johannsmann citation: ama: Biermann M, Leppin C, Langhoff A, Ziemer T, Rembe C, Johannsmann D. An electrochemical quartz crystal microbalance (EQCM) based on microelectrode arrays allows to distinguish between adsorption and electrodeposition. The Analyst. 2024;149(7):2138-2146. doi:10.1039/d3an02210b apa: Biermann, M., Leppin, C., Langhoff, A., Ziemer, T., Rembe, C., & Johannsmann, D. (2024). An electrochemical quartz crystal microbalance (EQCM) based on microelectrode arrays allows to distinguish between adsorption and electrodeposition. The Analyst, 149(7), 2138–2146. https://doi.org/10.1039/d3an02210b bibtex: '@article{Biermann_Leppin_Langhoff_Ziemer_Rembe_Johannsmann_2024, title={An electrochemical quartz crystal microbalance (EQCM) based on microelectrode arrays allows to distinguish between adsorption and electrodeposition}, volume={149}, DOI={10.1039/d3an02210b}, number={7}, journal={The Analyst}, publisher={Royal Society of Chemistry (RSC)}, author={Biermann, Michael and Leppin, Christian and Langhoff, Arne and Ziemer, Thorben and Rembe, Christian and Johannsmann, Diethelm}, year={2024}, pages={2138–2146} }' chicago: 'Biermann, Michael, Christian Leppin, Arne Langhoff, Thorben Ziemer, Christian Rembe, and Diethelm Johannsmann. “An Electrochemical Quartz Crystal Microbalance (EQCM) Based on Microelectrode Arrays Allows to Distinguish between Adsorption and Electrodeposition.” The Analyst 149, no. 7 (2024): 2138–46. https://doi.org/10.1039/d3an02210b.' ieee: 'M. Biermann, C. Leppin, A. Langhoff, T. Ziemer, C. Rembe, and D. Johannsmann, “An electrochemical quartz crystal microbalance (EQCM) based on microelectrode arrays allows to distinguish between adsorption and electrodeposition,” The Analyst, vol. 149, no. 7, pp. 2138–2146, 2024, doi: 10.1039/d3an02210b.' mla: Biermann, Michael, et al. “An Electrochemical Quartz Crystal Microbalance (EQCM) Based on Microelectrode Arrays Allows to Distinguish between Adsorption and Electrodeposition.” The Analyst, vol. 149, no. 7, Royal Society of Chemistry (RSC), 2024, pp. 2138–46, doi:10.1039/d3an02210b. short: M. Biermann, C. Leppin, A. Langhoff, T. Ziemer, C. Rembe, D. Johannsmann, The Analyst 149 (2024) 2138–2146. date_created: 2025-12-18T17:01:44Z date_updated: 2025-12-18T17:42:48Z doi: 10.1039/d3an02210b extern: '1' intvolume: ' 149' issue: '7' language: - iso: eng page: 2138-2146 publication: The Analyst publication_identifier: issn: - 0003-2654 - 1364-5528 publication_status: published publisher: Royal Society of Chemistry (RSC) quality_controlled: '1' status: public title: An electrochemical quartz crystal microbalance (EQCM) based on microelectrode arrays allows to distinguish between adsorption and electrodeposition type: journal_article user_id: '117722' volume: 149 year: '2024' ... --- _id: '63231' abstract: - lang: eng text: "\r\n A QCM-D probes the temperature- and concentration-dependent complex high-frequency viscosity and provides information on protein-protein interactions in solutions of monoclonal antibodies." author: - first_name: Emily full_name: Rott, Emily last_name: Rott - first_name: Christian full_name: Leppin, Christian id: '117722' last_name: Leppin - first_name: Tim full_name: Diederichs, Tim last_name: Diederichs - first_name: Patrick full_name: Garidel, Patrick last_name: Garidel - first_name: Diethelm full_name: Johannsmann, Diethelm last_name: Johannsmann citation: ama: Rott E, Leppin C, Diederichs T, Garidel P, Johannsmann D. Protein–protein interactions in solutions of monoclonal antibodies probed by the dependence of the high-frequency viscosity on temperature and concentration. The Analyst. 2023;148(8):1887-1897. doi:10.1039/d3an00076a apa: Rott, E., Leppin, C., Diederichs, T., Garidel, P., & Johannsmann, D. (2023). Protein–protein interactions in solutions of monoclonal antibodies probed by the dependence of the high-frequency viscosity on temperature and concentration. The Analyst, 148(8), 1887–1897. https://doi.org/10.1039/d3an00076a bibtex: '@article{Rott_Leppin_Diederichs_Garidel_Johannsmann_2023, title={Protein–protein interactions in solutions of monoclonal antibodies probed by the dependence of the high-frequency viscosity on temperature and concentration}, volume={148}, DOI={10.1039/d3an00076a}, number={8}, journal={The Analyst}, publisher={Royal Society of Chemistry (RSC)}, author={Rott, Emily and Leppin, Christian and Diederichs, Tim and Garidel, Patrick and Johannsmann, Diethelm}, year={2023}, pages={1887–1897} }' chicago: 'Rott, Emily, Christian Leppin, Tim Diederichs, Patrick Garidel, and Diethelm Johannsmann. “Protein–Protein Interactions in Solutions of Monoclonal Antibodies Probed by the Dependence of the High-Frequency Viscosity on Temperature and Concentration.” The Analyst 148, no. 8 (2023): 1887–97. https://doi.org/10.1039/d3an00076a.' ieee: 'E. Rott, C. Leppin, T. Diederichs, P. Garidel, and D. Johannsmann, “Protein–protein interactions in solutions of monoclonal antibodies probed by the dependence of the high-frequency viscosity on temperature and concentration,” The Analyst, vol. 148, no. 8, pp. 1887–1897, 2023, doi: 10.1039/d3an00076a.' mla: Rott, Emily, et al. “Protein–Protein Interactions in Solutions of Monoclonal Antibodies Probed by the Dependence of the High-Frequency Viscosity on Temperature and Concentration.” The Analyst, vol. 148, no. 8, Royal Society of Chemistry (RSC), 2023, pp. 1887–97, doi:10.1039/d3an00076a. short: E. Rott, C. Leppin, T. Diederichs, P. Garidel, D. Johannsmann, The Analyst 148 (2023) 1887–1897. date_created: 2025-12-18T17:06:08Z date_updated: 2025-12-18T17:38:31Z doi: 10.1039/d3an00076a intvolume: ' 148' issue: '8' language: - iso: eng page: 1887-1897 publication: The Analyst publication_identifier: issn: - 0003-2654 - 1364-5528 publication_status: published publisher: Royal Society of Chemistry (RSC) quality_controlled: '1' status: public title: Protein–protein interactions in solutions of monoclonal antibodies probed by the dependence of the high-frequency viscosity on temperature and concentration type: journal_article user_id: '117722' volume: 148 year: '2023' ... --- _id: '63237' abstract: - lang: eng text: Using a fast electrochemical quartz crystal microbalance (EQCM), zwitterionic electrolytes were studied with regard to changes of resonance frequency and resonance bandwidth after the electrode potential was switched. author: - first_name: Christian full_name: Leppin, Christian id: '117722' last_name: Leppin - first_name: Arne full_name: Langhoff, Arne last_name: Langhoff - first_name: Hanna-Friederike full_name: Poggemann, Hanna-Friederike last_name: Poggemann - first_name: Alexander Simon full_name: Gödde, Alexander Simon last_name: Gödde - first_name: Diethelm full_name: Johannsmann, Diethelm last_name: Johannsmann citation: ama: 'Leppin C, Langhoff A, Poggemann H-F, Gödde AS, Johannsmann D. Fast and slow EQCM response of zwitterionic weak electrolytes to changes in the electrode potential: a pH-mediated mechanism. The Analyst. 2021;146(19):6005-6013. doi:10.1039/d1an01306h' apa: 'Leppin, C., Langhoff, A., Poggemann, H.-F., Gödde, A. S., & Johannsmann, D. (2021). Fast and slow EQCM response of zwitterionic weak electrolytes to changes in the electrode potential: a pH-mediated mechanism. The Analyst, 146(19), 6005–6013. https://doi.org/10.1039/d1an01306h' bibtex: '@article{Leppin_Langhoff_Poggemann_Gödde_Johannsmann_2021, title={Fast and slow EQCM response of zwitterionic weak electrolytes to changes in the electrode potential: a pH-mediated mechanism}, volume={146}, DOI={10.1039/d1an01306h}, number={19}, journal={The Analyst}, publisher={Royal Society of Chemistry (RSC)}, author={Leppin, Christian and Langhoff, Arne and Poggemann, Hanna-Friederike and Gödde, Alexander Simon and Johannsmann, Diethelm}, year={2021}, pages={6005–6013} }' chicago: 'Leppin, Christian, Arne Langhoff, Hanna-Friederike Poggemann, Alexander Simon Gödde, and Diethelm Johannsmann. “Fast and Slow EQCM Response of Zwitterionic Weak Electrolytes to Changes in the Electrode Potential: A PH-Mediated Mechanism.” The Analyst 146, no. 19 (2021): 6005–13. https://doi.org/10.1039/d1an01306h.' ieee: 'C. Leppin, A. Langhoff, H.-F. Poggemann, A. S. Gödde, and D. Johannsmann, “Fast and slow EQCM response of zwitterionic weak electrolytes to changes in the electrode potential: a pH-mediated mechanism,” The Analyst, vol. 146, no. 19, pp. 6005–6013, 2021, doi: 10.1039/d1an01306h.' mla: 'Leppin, Christian, et al. “Fast and Slow EQCM Response of Zwitterionic Weak Electrolytes to Changes in the Electrode Potential: A PH-Mediated Mechanism.” The Analyst, vol. 146, no. 19, Royal Society of Chemistry (RSC), 2021, pp. 6005–13, doi:10.1039/d1an01306h.' short: C. Leppin, A. Langhoff, H.-F. Poggemann, A.S. Gödde, D. Johannsmann, The Analyst 146 (2021) 6005–6013. date_created: 2025-12-18T17:26:31Z date_updated: 2025-12-18T17:35:11Z doi: 10.1039/d1an01306h extern: '1' intvolume: ' 146' issue: '19' language: - iso: eng page: 6005-6013 publication: The Analyst publication_identifier: issn: - 0003-2654 - 1364-5528 publication_status: published publisher: Royal Society of Chemistry (RSC) quality_controlled: '1' status: public title: 'Fast and slow EQCM response of zwitterionic weak electrolytes to changes in the electrode potential: a pH-mediated mechanism' type: journal_article user_id: '117722' volume: 146 year: '2021' ... --- _id: '63238' abstract: - lang: eng text:

A fast EQCM measures the kinetics of the viscosity changes inside the double layer following voltage jumps.

author: - first_name: Christian full_name: Leppin, Christian id: '117722' last_name: Leppin - first_name: Astrid full_name: Peschel, Astrid last_name: Peschel - first_name: Frederick Sebastian full_name: Meyer, Frederick Sebastian last_name: Meyer - first_name: Arne full_name: Langhoff, Arne last_name: Langhoff - first_name: Diethelm full_name: Johannsmann, Diethelm last_name: Johannsmann citation: ama: Leppin C, Peschel A, Meyer FS, Langhoff A, Johannsmann D. Kinetics of viscoelasticity in the electric double layer following steps in the electrode potential studied by a fast electrochemical quartz crystal microbalance (EQCM). The Analyst. 2021;146(7):2160-2171. doi:10.1039/d0an01965h apa: Leppin, C., Peschel, A., Meyer, F. S., Langhoff, A., & Johannsmann, D. (2021). Kinetics of viscoelasticity in the electric double layer following steps in the electrode potential studied by a fast electrochemical quartz crystal microbalance (EQCM). The Analyst, 146(7), 2160–2171. https://doi.org/10.1039/d0an01965h bibtex: '@article{Leppin_Peschel_Meyer_Langhoff_Johannsmann_2021, title={Kinetics of viscoelasticity in the electric double layer following steps in the electrode potential studied by a fast electrochemical quartz crystal microbalance (EQCM)}, volume={146}, DOI={10.1039/d0an01965h}, number={7}, journal={The Analyst}, publisher={Royal Society of Chemistry (RSC)}, author={Leppin, Christian and Peschel, Astrid and Meyer, Frederick Sebastian and Langhoff, Arne and Johannsmann, Diethelm}, year={2021}, pages={2160–2171} }' chicago: 'Leppin, Christian, Astrid Peschel, Frederick Sebastian Meyer, Arne Langhoff, and Diethelm Johannsmann. “Kinetics of Viscoelasticity in the Electric Double Layer Following Steps in the Electrode Potential Studied by a Fast Electrochemical Quartz Crystal Microbalance (EQCM).” The Analyst 146, no. 7 (2021): 2160–71. https://doi.org/10.1039/d0an01965h.' ieee: 'C. Leppin, A. Peschel, F. S. Meyer, A. Langhoff, and D. Johannsmann, “Kinetics of viscoelasticity in the electric double layer following steps in the electrode potential studied by a fast electrochemical quartz crystal microbalance (EQCM),” The Analyst, vol. 146, no. 7, pp. 2160–2171, 2021, doi: 10.1039/d0an01965h.' mla: Leppin, Christian, et al. “Kinetics of Viscoelasticity in the Electric Double Layer Following Steps in the Electrode Potential Studied by a Fast Electrochemical Quartz Crystal Microbalance (EQCM).” The Analyst, vol. 146, no. 7, Royal Society of Chemistry (RSC), 2021, pp. 2160–71, doi:10.1039/d0an01965h. short: C. Leppin, A. Peschel, F.S. Meyer, A. Langhoff, D. Johannsmann, The Analyst 146 (2021) 2160–2171. date_created: 2025-12-18T17:27:56Z date_updated: 2025-12-18T17:34:42Z doi: 10.1039/d0an01965h extern: '1' intvolume: ' 146' issue: '7' language: - iso: eng page: 2160-2171 publication: The Analyst publication_identifier: issn: - 0003-2654 - 1364-5528 publication_status: published publisher: Royal Society of Chemistry (RSC) quality_controlled: '1' status: public title: Kinetics of viscoelasticity in the electric double layer following steps in the electrode potential studied by a fast electrochemical quartz crystal microbalance (EQCM) type: journal_article user_id: '117722' volume: 146 year: '2021' ... --- _id: '40580' abstract: - lang: eng text:

A gas sensor comprising of a planar electrode device covered with a thin layer of gel polymer electrolyte gave accurate and fast sensing responses for oxygen and ammonia detection in both the cathodic and anodic potential regions.

author: - first_name: Junqiao full_name: Lee, Junqiao last_name: Lee - first_name: Ghulam full_name: Hussain, Ghulam last_name: Hussain - first_name: Nieves full_name: Lopez Salas, Nieves id: '98120' last_name: Lopez Salas orcid: https://orcid.org/0000-0002-8438-9548 - first_name: Douglas R. full_name: MacFarlane, Douglas R. last_name: MacFarlane - first_name: Debbie S. full_name: Silvester, Debbie S. last_name: Silvester citation: ama: Lee J, Hussain G, Lopez Salas N, MacFarlane DR, Silvester DS. Thin films of poly(vinylidene fluoride-co-hexafluoropropylene)-ionic liquid mixtures as amperometric gas sensing materials for oxygen and ammonia. The Analyst. 2020;145(5):1915-1924. doi:10.1039/c9an02153a apa: Lee, J., Hussain, G., Lopez Salas, N., MacFarlane, D. R., & Silvester, D. S. (2020). Thin films of poly(vinylidene fluoride-co-hexafluoropropylene)-ionic liquid mixtures as amperometric gas sensing materials for oxygen and ammonia. The Analyst, 145(5), 1915–1924. https://doi.org/10.1039/c9an02153a bibtex: '@article{Lee_Hussain_Lopez Salas_MacFarlane_Silvester_2020, title={Thin films of poly(vinylidene fluoride-co-hexafluoropropylene)-ionic liquid mixtures as amperometric gas sensing materials for oxygen and ammonia}, volume={145}, DOI={10.1039/c9an02153a}, number={5}, journal={The Analyst}, publisher={Royal Society of Chemistry (RSC)}, author={Lee, Junqiao and Hussain, Ghulam and Lopez Salas, Nieves and MacFarlane, Douglas R. and Silvester, Debbie S.}, year={2020}, pages={1915–1924} }' chicago: 'Lee, Junqiao, Ghulam Hussain, Nieves Lopez Salas, Douglas R. MacFarlane, and Debbie S. Silvester. “Thin Films of Poly(Vinylidene Fluoride-Co-Hexafluoropropylene)-Ionic Liquid Mixtures as Amperometric Gas Sensing Materials for Oxygen and Ammonia.” The Analyst 145, no. 5 (2020): 1915–24. https://doi.org/10.1039/c9an02153a.' ieee: 'J. Lee, G. Hussain, N. Lopez Salas, D. R. MacFarlane, and D. S. Silvester, “Thin films of poly(vinylidene fluoride-co-hexafluoropropylene)-ionic liquid mixtures as amperometric gas sensing materials for oxygen and ammonia,” The Analyst, vol. 145, no. 5, pp. 1915–1924, 2020, doi: 10.1039/c9an02153a.' mla: Lee, Junqiao, et al. “Thin Films of Poly(Vinylidene Fluoride-Co-Hexafluoropropylene)-Ionic Liquid Mixtures as Amperometric Gas Sensing Materials for Oxygen and Ammonia.” The Analyst, vol. 145, no. 5, Royal Society of Chemistry (RSC), 2020, pp. 1915–24, doi:10.1039/c9an02153a. short: J. Lee, G. Hussain, N. Lopez Salas, D.R. MacFarlane, D.S. Silvester, The Analyst 145 (2020) 1915–1924. date_created: 2023-01-27T16:21:25Z date_updated: 2023-01-27T16:29:21Z doi: 10.1039/c9an02153a intvolume: ' 145' issue: '5' keyword: - Electrochemistry - Spectroscopy - Environmental Chemistry - Biochemistry - Analytical Chemistry language: - iso: eng page: 1915-1924 publication: The Analyst publication_identifier: issn: - 0003-2654 - 1364-5528 publication_status: published publisher: Royal Society of Chemistry (RSC) status: public title: Thin films of poly(vinylidene fluoride-co-hexafluoropropylene)-ionic liquid mixtures as amperometric gas sensing materials for oxygen and ammonia type: journal_article user_id: '98120' volume: 145 year: '2020' ...