Vapor Sensing Using Conjugated Molecule-Linked Au Nanoparticles in a Silica Matrix

Figure 5

Response of gold nanoparticle/10 mL TEOS coated IDEs when exposed to 10 000 ppm DMMP in CS₂. The amount of Au nanoparticles was decreased while keeping the TEOS amount fixed. (a) contained 1.25 mg Au NP:10 uL TEOS, (b) contained 0.63 mg Au NP:10 uL TEOS, (c) contained 0.31 mg Au NP:10 uL TEOS, (d) contained 0.16 mg Au NP:10 uL TEOS.

(a)

(b)

(c)

(d)