نتایج جستجو برای: biosubstrate enzyme electrode

تعداد نتایج: 303849  

2016

This laboratory seeks to quantitatively determine glucose concentration in common beverages. The method employed is enzyme catalyzed oxidation of glucose, quantified by chronoamperometry. With an inexpensive patterned electrode and low cost glucose oxidase enzyme, an electrochemical sensor is constructed to selectively measure glucose in complicated beverages which can present as analytically c...

Journal: :ECS sensors plus 2023

Abstract Silver/silver chloride (Ag/AgCl) is ubiquitous in the field of electrochemical biosensing due to its suitability as a reference electrode material. However, we recently discovered that screen-printed Ag/AgCl ink has detrimental effect on Alcohol Oxidase enzyme stability. We performed an optical absorbance assay isolate interaction and discover surprisingly strong inhibition effect. The...

Journal: :Èlektronnaâ obrabotka materialov 2022

The article deals with the study of factors participating in extraction humic acids from plant substrates under action electric discharges. Using example discharge treat-ment peat-water suspension, it was demonstrated that main factor affecting intensity is degree solid phase biosubstrate-water suspension grinding, which depends on pressure amplitude at a distance inner radius chamber and numbe...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2004
Yoshihiro Kase Hitoshi Muguruma

We propose an electron transfer-mediated amperometric enzyme biosensor based on plasma-polymerized thin film of dimethylaminomethylferrocene (DMAMF) on a sputtered gold electrode. The DMAMF plasma-polymerized film is deposited directly onto the surface of the electrode under dry conditions. The resulting thin film not only has redox sites but also is extremely thin (approximately 20 nm), adhere...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2002
Toshio Yao Yasuki Nishimura

Journal: :The Analyst 2015
Jinming Kong Xuehua Yu Weiwen Hu Qiong Hu Sailan Shui Lianzhi Li Xiaojun Han Huifang Xie Xueji Zhang Tianhe Wang

An efficient catalyst based on artificial bionic peroxidase was synthesized for electrocatalysis. A poly(ethyleneimine)/Au nanoparticle composite (PEI-AuNP) was prepared and it was then linked to hemin via a coupling reaction between carboxyl groups in hemin and amino groups in PEI without the activation of a carboxyl group by carbodiimide. Fourier transform infrared (FTIR) spectroscopy verifie...

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