التفاصيل البيبلوغرافية
| العنوان: |
A Green Approach to Synthesize Silver Nanoparticles in Starch-co-Poly(acrylamide) Hydrogels by Tridax procumbens Leaf Extract and Their Antibacterial Activity. |
| المؤلفون: |
Shaik, Siraj, Rao Kummara, Madhusudana, Poluru, Sudhakar, Allu, Chandrababu, Gooty, Jaffer Mohiddin, Rao Kashayi, Chowdoji, Subha, Marata Chinna Subbarao |
| المصدر: |
International Journal of Carbohydrate Chemistry; 2013, p1-10, 10p |
| مصطلحات موضوعية: |
SILVER nanoparticles, NANOSTRUCTURED materials synthesis, SUSTAINABLE chemistry, STARCH, POLYACRYLAMIDE, HYDROGELS, ASTERACEAE, THERMOGRAVIMETRY, PLANT extracts, ANTIBACTERIAL agents |
| مستخلص: |
A series of starch-co-poly(acrylamide) (starch-co-PAAm) hydrogels were synthesized by employing free radical redox polymerization. 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 by UV-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. TEM images indicate the successful incorporation of silver nanoparticles ranging from 5 to 10 nm in size and spherical in shape with a narrow size distribution. These developed SNCHs were used to study the antibacterial activity by inhibition zone method against gram-positive and gram-negative bacteria such as Bacillus and Escherichia coli. The results indicated that these SNCHs can be used potentially for biomedical applications. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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