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. 2013 Jun 28;14(7):13592–13614. doi: 10.3390/ijms140713592

Figure 4.

Figure 4

Electrochemical analysis of the interactions of: (A) hyaluronic acid (1.24, 1.99, 2.49, 3.23, 4.48 mM) and AgNO3 (100 μM); (B) hyaluronic acid (1.24, 1.99, 2.49, 3.23, 4.48 mM) and SPNPs (100 μM); (C) chitosan (1.4, 2.66, 5.14, 5.86, 7.32 mM) and silver ions AgNO3 (100 μM) or (D) chitosan (1.4, 2.66, 5.14, 5.86, 7.32 mM) and SPNPs (100 μM) using differential pulse voltammetry (DPV). Heights and potentials of silver(I) were determined and are shown. DPV parameters were as follows: start potential −0.2 V, end potential 0.5 V, amplitude 0.05 V, time of accumulation 60 s, acetate buffer pH 5.