(Acrylamide) Hydrogels by Tridax Procumbens Leaf Extract and Their Antibacterial Activity
Hindawi Publishing Corporation International Journal of Carbohydrate Chemistry Volume 2013, Article ID 539636, 10 pages http://dx.doi.org/10.1155/2013/539636 Research Article A Green Approach to Synthesize Silver Nanoparticles in Starch-co-Poly(acrylamide) Hydrogels by Tridax procumbens Leaf Extract and Their Antibacterial Activity Siraj Shaik,1 Madhusudana Rao Kummara,2 Sudhakar Poluru,1 Chandrababu Allu,1 Jaffer Mohiddin Gooty,3 Chowdoji Rao Kashayi,4 and Marata Chinna Subbarao Subha1 1 Department of Chemistry, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh 515 003, India 2 DepartmentofPolymerScienceandEngineering,PusanNationalUniversity,Busan609-735,RepublicofKorea 3 DepartmentofMicrobiology,SriKrishnadevarayaUniversity,Anantapur,AndhraPradesh515003,India 4 Department of Polymer Science & Tech, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh 515 003, India Correspondence should be addressed to Marata Chinna Subbarao Subha; mcssubha3@gmail.com Received 31 August 2013; Accepted 13 November 2013 Academic Editor: Roland J. Pieters Copyright © 2013 Siraj Shaik et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. A series of starch-co-poly(acrylamide) (starch-co-PAAm) hydrogels were synthesized by employing free radical redox poly- + merization. A novel green approach, Tridax procumbens (TD) leaf extract, was used for reduction of silver ions (Ag )into silver nanoparticles in the starch-co-PAAm hydrogel network. The formation of silver nanoparticles was confirmed byUV- visible spectroscopy (UV-Vis), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (X-RD) studies. 22% of weight loss difference between hydrogel and silver nanocomposite hydrogel (SNCH) clearly indicates the formation of silver nanoparticles by TGA.
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