Optical Nanosensor Platform Operating in Near-Physiological pH Range via Polymer-Brush-Mediated Plasmon Coupling

摘要

The nanosensors' platform made of a stimuli-responsive polymeroble metal nanoparticle composite thin film exploits the combination of the swelling-shrinking transition/in a poly(N,N'-dimemylaminoethyl mefhacrylate) brush and the localized surface plasmon resonance in metal nano-particles to enable the transduction of changes in the solution pH in the near-physiological range into a pronounced optical signal.