Figure 3.

Characteristics of alkanethiol self-assembled monolayers. (A) Self-assembled monolayer of alkanethiols, based on [18]. (B) Typical biosensor setup consisting of thiolated aptamers and mercaptohexanol (MCH). (C) Process of gradual reorganization in alkanethiol monolayers. Xu et al. [30] observed an increasing diameter of the semicircle in the Nyquist plot and therefore a drift of the calculated charge transfer resistance over a period of 18 h after the backfilling with MCH. Reproduced with permission from Xu et al. [30], copyright 2019, American Chemical Society.