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Prof. Ashutosh Tiwari, Editor-in-Chief has been honoured Scientists with Adv Mater Lett Award 2013.

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Biomimetic Piezoelectric Quartz Sensor For Folic Acid Based On A Molecular Imprinting Technology

Rashmi Madhuri, Mahavir Prasad Tiwari, Deepak Kumar, Aparna Mukharji, Bhim Bali Prasad

Volume 2, Issue 4, Page 264-267 | DOI: 10.5185/amlett.indias.194

Keywords:

Molecularly imprinted polymer; quartz crystal microbalance; folic acid; activator generated-atom transfer radicalpolymerization

Abstract: 

A novel molecularly imprinted polymer (MIP)-modified quartz crystal microbalance (QCM) sensor with high selectivity has been developed for the determination of folic acid via activator generated-atom transfer radical polymerization (AGET-ATRP) technique. It requires an alkyl halide (R-X) as an initiator, a transition metal complex as a catalyst, and an amine as reducing agent. Herein, chlorosilane was used as initiator which was grafted onto the self assembled monolayer modified-quartz crystal surface followed by the addition of pre-polymer mixture which latter underwent thermal cross-linking resulting in MIP-modified QCM sensor. The linear working range (quantification) was found to be 0.6-26.0 μg L-1, with the detection limit as low as 0.08 μg L-1 (S/N=3). Copyright © 2011 VBRI press.

 

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