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. 2019 Jan 25;14:835–849. doi: 10.2147/IJN.S184013

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© 2019 Zhu et al. This work is published and licensed by Dove Medical Press Limited

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Performance of the biosensor toward cholesterol.

Notes: (A) Current response of the ChOx&ChEt/Au NPs/rGO-PAMAM-Fc biosensor toward cholesterol concentration ranging from 1.0×10⁻⁷ to 15.36 mM. (B) Linear relation between current response and logarithm of cholesterol concentration. The current response was recorded using LSV measurements in 0.1 mol/L HNO₃ solution containing 0.6 mol/L KNO₃ from −0.2 to 0.6 V at a scanning rate of 0.1 V/s. Error bars are the standard error of the mean (n=3 electrodes). (C) The LSV measurement curve toward different concentration of cholesterol.

Abbreviations: Fc, ferrocene; GE, gold electrode; LSV, linear sweep voltammetry; NPs, nanoparticles; PAMAM, polyamidoamine; rGO, reduced graphene oxide.