In this investigation, we prepared semi-interpenetrating network (IPN) hydrogels composed of pluronic and poly(acrylamide), using free radical polymerization with a redox initiator system in the presence of N,N'-methylenebisacrylamide. The hydrogels served as templates for producing highly stable and uniformly distributed silver nanoparticles via in situ reduction of silver nitrate (AgNO3) using sodium borohydride (NaBH4) as reducing agent. We confirmed the formation of silver nanoparticles using ultraviolet visible (UV-vis) spectroscopy and X-ray diffraction (XRD). Stability and morphology of the nanoparticles was examined using thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Finally, we demonstrated the presence of antibacterial activity in the developed hydrogel-silver nanocomposite.
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation (NRF) grant funded by Ministry of Education, Science and Technology ( 2009-0084190 and R11-2007-050-03002-0 “Active Polymer Center for Pattern Integration at Yonsei University“) and by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea . The authors are also grateful for the financial support of this research through grants from Seoul Research and Business Development Program ( 10816 ).
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)