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. 2019 Nov 4;9(11):1563. doi: 10.3390/nano9111563

Figure 1.

Figure 1

QCM-D sensograms at 25 °C monitoring the build-up of; (a) (Naf/Lys)4 and (b) (Naf/Lys/Naf/Chi)2. The letters “W”, “N”, “L”, and “C” signify the injection of water, Nafion, lysozyme, and chitosan solution, respectively.