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Findings from Jiangsu University Broaden Understanding of Pesticides (A Sensitive Amperometric Acetylcholine Biosensor Based on Carbon Nanosphere and...

July 30, 2014



Findings from Jiangsu University Broaden Understanding of Pesticides (A Sensitive Amperometric Acetylcholine Biosensor Based on Carbon Nanosphere and Acetylcholinesterase Modified Electrode for Detection of Pesticide Residues)

By a News Reporter-Staff News Editor at Biotech Week -- Fresh data on Pesticides are presented in a new report. According to news reporting originating in Zhenjiang, People's Republic of China, by NewsRx journalists, research stated, "A sensitive biosensor based on acetylcholinesterase (AChE) and carbon nanosphere (CNS) immobilized on a glassy carbon electrode was developed for the detection of pesticides by the inhibition of AChE activity. The inhibition effect of the pesticides resulted in a decrease of current response of the acetylthiocholine chloride that was used as a substrate to obtain an electrochemical signal."

The news reporters obtained a quote from the research from Jiangsu University, "When applied to the pesticides carbofuran and fenitrothion, the designed biosensor exhibited high sensitivity and low detection limits. The inhibition ratio of carbofuran and fenitrothion were linearly proportional to their concentrations ranging from 0.40 to 4.79 and 6.26 to 125.31 mu g/L, respectively. The theoretical detection limits were found to be 0.082 mu g/L for carbofuran and 2.61 mu g/L for fenitrothion. Furthermore, as the biosensor offers good reproducibility and stability, it could be used for trace detection of pesticides in real samples."

According to the news reporters, the research concluded: "Compared with other AChE biosensors, the proposed biosensor was convenient and it exhibited extreme sensitivity to pesticides."

For more information on this research see: A Sensitive Amperometric Acetylcholine Biosensor Based on Carbon Nanosphere and Acetylcholinesterase Modified Electrode for Detection of Pesticide Residues. Analytical Sciences, 2014;30(6):669-673. Analytical Sciences can be contacted at: Japan Soc Analytical Chemistry, 26-2 Nishigotanda 1 Chome Shinagawa-Ku, Tokyo, 141, Japan (see also Pesticides).

Our news correspondents report that additional information may be obtained by contacting J.R. Cai, Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, People's Republic of China. Additional authors for this research include L.N. Zhou and E. Han.

Keywords for this news article include: Zhenjiang, People's Republic of China, Asia, Acetylcholine, Agrochemicals, Bioengineering, Biogenic Amines, Bionanotechnology, Biosensing, Biotechnology, Nanobiotechnology, Nanotechnology, Pesticides

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


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Source: Biotech Week


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