Preparation of a novel pH-responsive Au nanoparticle/poly (acrylic amide) grafted onto salep composite hydrogel

In this paper, series of novel pH-responsive Au nanoparticle/poly (acrylic amide) grafted onto salep (salep-g-AAm) composite hydrogel were successfully prepared. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) were used to characterize the composite system. Moreover, compared to the pure salep-g-AAm hydrogel, not only did the Au nanoparticle/ salep-g-AAm composite hydrogels exhibit much higher swelling ratio and faster deswelling rate, but also higher pH switchable electrical properties upon controlling the interparticle distance under pH stimulus. The pH responsive nanocomposite hydrogel reported here might be a potentially smart material in the range of applications including electronics, biosensors and drug-delivery devices.

کلیدواژه ها:

Au nanoparticles ، Nanocomposite hydrogel ، Swelling ، Deswelling