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. 2022 Feb 19;27(4):1415. doi: 10.3390/molecules27041415

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Exemplary graphs of adsorption kinetic measurements of polyelectrolyte multilayers monitored by QCM-D: (a) PEI/CUR/ALG/CHIT/1; (b) PEI/CUR/ALG/CHIT/2; (c) PEI/CUR/ALG/CHIT/3; (d) PEI/CUR/ALG/CHIT/4. Blue lines illustrate frequency shifts (Δf), red lines illustrate dissipation shifts (ΔD) of polyelectrolyte multilayers. Resonance frequency variations and dissipation variations are recorded as a function of time. Normalised frequency and dissipation shifts are shown for the seventh overtone.