ABSTRACT
This chapter presents the results of two specific studies related to the development of plasmonic nanocomposite matrix films exhibiting features of the "dynamic interface," which can be prepared using quick and simple methods. The first study shows that it is possible to vary the distance between silver nanoparticles embedded in poly(acrylic acid) (PAA) matrices in three dimensions, while the PAA network fixes their relative positions within the matrix. The silver nanocomposite matrix developed showed reversible spectral properties both in surface plasmon resonance (SPR) and localized surface plasmon resonance measurements after immersion in liquids of different pH. pH-induced swelling and shrinking activity of the composite metamaterial was proposed and theoretically simulated to explain this phenomenon. The second study highlights the promising potential of electrochemical SPR method by the examples of redox switching of optical and electrical properties of nanocomposite polymeric films.
