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Researchers from Jamia Millia Islamia Describe Findings in Carbohydrate Polymers

June 24, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Carbohydrate Polymers have been published. According to news reporting from New Delhi, India, by VerticalNews journalists, research stated, "Silver nanocomposites (AgCPs) have been synthesized by chemical reduction from silver nitrate and sodium borohydride in presence of two stabilizers. Starch and poly (vinyl) alcohol, PVA with its rich source of polyhydroxy groups has been exploited for the capping of AgCPs."

The news correspondents obtained a quote from the research from Jamia Millia Islamia, "The ageing of NaBH4 aqueous solution, molar ratios of the reactants, nature of the stabilizers, mixing order of NaBH4 as well as capping agents have great influence on the morphology of AgCPs. We used the iodometric titration to conform the encapsulation of AgCPs inside the helical structure of starch. The reversible nature of encapsulation has been studied by UV-vis spectroscopic technique. Well-dispersed with an approximate size of 10nm and aggregated with an approximate size of 24-52 nm AgCPs were observed in the absence and presence of stabilizers (starch and PVA), respectively. TEM images indicates that the reaction mixture containing different order of reactants and stabilizers (PVA+NaBH4+Ag(+), PVA+Ag(+)+NaBH4, starch+NaBH4+Ag(+) and starch+Ag(+)+NaBH4) have different morphology."

According to the news reporters, the research concluded: "Added electrolytes (NaCl, NaBr and NaI) do not detached the Ag(+) ions from the surface of AgNCs."

For more information on this research see: Encapsulation of silver nanocomposites and effects of stabilizers. Carbohydrate Polymers, 2014;107():167-73. (Elsevier -; Carbohydrate Polymers -

Our news journalists report that additional information may be obtained by contacting O. Bashir, Nanoscience Research Laboratory, Dept. of Chemistry, Jamia Millia Islamia (Central University), New Delhi 110025, India. Additional authors for this research include S. Hussain, Z. Khan and S.A Al-Thabaiti.

Keywords for this news article include: Asia, India, New Delhi, Carbohydrate Polymers.

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Source: Journal of Technology

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