News Column

New Findings from University of Delhi in Urea Provides New Insights

June 24, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Fresh data on Urea are presented in a new report. According to news reporting from New Delhi, India, by NewsRx journalists, research stated, "We report the facile fabrication of a self-reporting, highly sensitive and selective optical urea nanobiosensor using chitosan-g-polypyrrole (CHIT-g-PPy) nanomicelles as a sensing platform. Urease was immobilized on the spherical micellar surface to create an ultrasensitive self-reporting nanobiosystem for urea."

The news correspondents obtained a quote from the research from the University of Delhi, "The resulting nanostructures show monodisperse size distributions before and after enzyme loading. The critical micelle concentration of the enzyme-immobilized polymer nanostructure was measured to be 0.49 mg/L in phosphate buffer at pH 7.4. The nanobiosensor had a linear optical response to urea concentrations ranging from 0.01 to 30 mM with a response time of a few seconds."

According to the news reporters, the research concluded: "This promising approach provides a novel methodology for self-reporting bioassembly over nanostructure polymer micelles and furnishes the basis for fabrication of sensitive and efficient optical nanobiosensors."

For more information on this research see: Self-Reporting Micellar Polymer Nanostructures for Optical Urea Biosensing. Industrial & Engineering Chemistry Research, 2014;53(20):8509-8514. Industrial & Engineering Chemistry Research can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; Industrial & Engineering Chemistry Research -

Our news journalists report that additional information may be obtained by contacting S.K. Shukla, University of Delhi, Dept. of Polymer Sci, Bhaskaracharya Coll Appl Sci, New Delhi 110075, India. Additional authors for this research include O. Parlak, S.K. Shukla, S. Mishra, A.P.F. Turner and A. Tiwari (see also Urea).

Keywords for this news article include: Asia, Urea, India, New Delhi, Nanostructural, Nanostructures, Nanotechnology, Organic Chemicals, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

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Source: Life Science Weekly

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