Ultra-trace analysis of d-and l-aspartic acid applying one-by-one approach on a dual imprinted electrochemical sensor
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- 作者：Bhim Bali Prasad ; prof.bbpd@yahoo.comAuthor Vitae ; Swadha JaiswalAuthor Vitae ; Kislay SinghAuthor Vitae
- 关键词：Dual imprinted polymer ; Multi-walled carbon nanotubes ; Gold nanoparticles ; d- and l-Aspartic acid ; Potassium ferricyanide probe ; One-by-one approach
- 刊名：Sensors and Actuators B: Chemical
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：240
- 期：Complete
- 页码：631-639
- 全文大小：2154 K
- 卷排序：240
文摘
An enantiomeric pair imprinted polymeric film, for the one-by-one evaluation of d- and l-aspartic acid, with embedded functionalized multiwalled carbon nanotubes, was developed following the ‘surface grafting from’ approach onto a gold nanoparticles decorated pencil graphite electrode. The quantitation ability of the proposed sensor with differential pulse anodic stripping voltammetric transduction was found to be in the tune of 4.08 ng mL−1 (S/N = 3) for both the enantiomers in the real samples, without any cross-reactivity, matrix effect, and false-positives. The stringent limits realized for d-Asp and l-Asp analysis in biological fluids could be helpful for primitive diagnosis of epilepsy and lennox syndrome.