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. 2022 Aug 25;23(17):9642. doi: 10.3390/ijms23179642

Figure 5.

Figure 5

Scheme of a MIP nanoparticle-based gas sensor, in which target-induced swelling of molecularly imprinted polymer particles (blue) increases the electrical resistance by separating conductive materials (grey). This principle is the basis of sensors using conductive materials such as carbon nanotubes, graphene, or metal particles, and the polymer may be present as nanoparticles, microparticles, or continuous film.