---
_id: '63225'
abstract:
- lang: eng
  text: Various polycations and polyanions were sequentially adsorbed onto the gold
    electrode of a quartz crystal microbalance with dissipation monitoring. The study
    focused on determining the adsorption kinetics, viscoelastic properties, and electroresponsivity
    of polyelectrolyte layers. For the first time, it was demonstrated that the structure
    (compact or expanded) of the layers can be determined by electroresponsivity.
    Viscoelastic modeling alone did not provide a conclusive answer as to whether
    the layers were compact or expanded. The study was further enriched by streaming
    potential and contact angle measurements, where polyelectrolyte multilayers were
    formed on mica. It was found that successive adsorption of layers led to periodic
    inversion of the zeta potential. Systematic differences were observed between
    the different top layers, which were explained by intermixing between layers.
    The presence or absence of interpenetration, as determined by the measurements
    of streaming potential and contact angles, correlated well with electroresponsivity.
article_type: original
author:
- first_name: Christian
  full_name: Leppin, Christian
  id: '117722'
  last_name: Leppin
- first_name: Agata
  full_name: Pomorska, Agata
  last_name: Pomorska
- first_name: Maria
  full_name: Morga, Maria
  last_name: Morga
- first_name: Pawel
  full_name: Pomastowski, Pawel
  last_name: Pomastowski
- first_name: Piotr
  full_name: Fijałkowski, Piotr
  last_name: Fijałkowski
- first_name: Aneta
  full_name: Michna, Aneta
  last_name: Michna
- first_name: Diethelm
  full_name: Johannsmann, Diethelm
  last_name: Johannsmann
citation:
  ama: Leppin C, Pomorska A, Morga M, et al. Swelling Degree of Polyelectrolyte Layers
    Determined by an Electrochemical Quartz Crystal Microbalance. <i>Biomacromolecules</i>.
    2025;26(2):914-928. doi:<a href="https://doi.org/10.1021/acs.biomac.4c01205">10.1021/acs.biomac.4c01205</a>
  apa: Leppin, C., Pomorska, A., Morga, M., Pomastowski, P., Fijałkowski, P., Michna,
    A., &#38; Johannsmann, D. (2025). Swelling Degree of Polyelectrolyte Layers Determined
    by an Electrochemical Quartz Crystal Microbalance. <i>Biomacromolecules</i>, <i>26</i>(2),
    914–928. <a href="https://doi.org/10.1021/acs.biomac.4c01205">https://doi.org/10.1021/acs.biomac.4c01205</a>
  bibtex: '@article{Leppin_Pomorska_Morga_Pomastowski_Fijałkowski_Michna_Johannsmann_2025,
    title={Swelling Degree of Polyelectrolyte Layers Determined by an Electrochemical
    Quartz Crystal Microbalance}, volume={26}, DOI={<a href="https://doi.org/10.1021/acs.biomac.4c01205">10.1021/acs.biomac.4c01205</a>},
    number={2}, journal={Biomacromolecules}, publisher={American Chemical Society
    (ACS)}, author={Leppin, Christian and Pomorska, Agata and Morga, Maria and Pomastowski,
    Pawel and Fijałkowski, Piotr and Michna, Aneta and Johannsmann, Diethelm}, year={2025},
    pages={914–928} }'
  chicago: 'Leppin, Christian, Agata Pomorska, Maria Morga, Pawel Pomastowski, Piotr
    Fijałkowski, Aneta Michna, and Diethelm Johannsmann. “Swelling Degree of Polyelectrolyte
    Layers Determined by an Electrochemical Quartz Crystal Microbalance.” <i>Biomacromolecules</i>
    26, no. 2 (2025): 914–28. <a href="https://doi.org/10.1021/acs.biomac.4c01205">https://doi.org/10.1021/acs.biomac.4c01205</a>.'
  ieee: 'C. Leppin <i>et al.</i>, “Swelling Degree of Polyelectrolyte Layers Determined
    by an Electrochemical Quartz Crystal Microbalance,” <i>Biomacromolecules</i>,
    vol. 26, no. 2, pp. 914–928, 2025, doi: <a href="https://doi.org/10.1021/acs.biomac.4c01205">10.1021/acs.biomac.4c01205</a>.'
  mla: Leppin, Christian, et al. “Swelling Degree of Polyelectrolyte Layers Determined
    by an Electrochemical Quartz Crystal Microbalance.” <i>Biomacromolecules</i>,
    vol. 26, no. 2, American Chemical Society (ACS), 2025, pp. 914–28, doi:<a href="https://doi.org/10.1021/acs.biomac.4c01205">10.1021/acs.biomac.4c01205</a>.
  short: C. Leppin, A. Pomorska, M. Morga, P. Pomastowski, P. Fijałkowski, A. Michna,
    D. Johannsmann, Biomacromolecules 26 (2025) 914–928.
date_created: 2025-12-18T16:59:12Z
date_updated: 2025-12-18T17:44:44Z
doi: 10.1021/acs.biomac.4c01205
extern: '1'
intvolume: '        26'
issue: '2'
language:
- iso: eng
page: 914-928
publication: Biomacromolecules
publication_identifier:
  issn:
  - 1525-7797
  - 1526-4602
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Swelling Degree of Polyelectrolyte Layers Determined by an Electrochemical
  Quartz Crystal Microbalance
type: journal_article
user_id: '117722'
volume: 26
year: '2025'
...