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. 2015 Dec 6;120(1):561–568. doi: 10.1021/acs.jpcc.5b10336

Figure 5.

Figure 5

(a) Transmission spectra of an Au NHA-hydrogel architecture simulated for increasing refractive index ni from 1.35 to 1.45 at the Au–hydrogel interface, representing the collapse of pNIPAAm cushion, and for an aqueous medium at the outer interface (n0 = 1.33). (b) Transmission spectra for increasing refractive indices n0 from 1.33 to 1.37 of the liquid medium (representative of the varying water/ethylene glycol mixtures) above the Au NHA–hydrogel film with a collapsed pNIPAAm cushion (ni = 1.45) beneath.