نتایج جستجو برای: non enzymatic sensors

تعداد نتایج: 1450293  

Akram Farahani, Faezeh Ghanati, Hassan Zare-maivan,

Abstract Salicornia europaea L. is a common halophytic plant species distributed in many saline soils and habitats, including margins of many wetlands. Salicornia europaea grows around Mighan Wetland, a natural desert ecosystem in central Iran with fluctuating water levels due to constant heat and severe wind throughout the year. Although, aspects of biology and ecology of halophytes growi...

Journal: :Journal of the Turkish Chemical Society, Section A: Chemistry 2022

Food safety is a crucial issue; all countries have struggled against pesticides for years. In this study, Polypyrrole (PPy)- and Polyacrylonitrile (PAN)-based non-enzymatic electrochemical sensors were investigated to detect the pesticide propamocarb (PM) in food samples. Under experimental conditions, proposed strategy exhibited high selectivity of disposable PPy-based PAN-based determination ...

Journal: :ChemElectroChem 2022

Abstract The frequent detection of physiological glucose levels from human blood or sweat requires the development low‐cost electrodes with high sensitivity and selectivity. In this work, we prepared a series Prussian blue (PB) modified carbon cloth (CC) different cyanoferrate groups. We achieved as 145.43 μA m −1 cm −2 in 0.1–6.5 concentration range response time below 2 s under pH. exhibited ...

2014
Baozhen Wang Shigehiro Takahashi Xiaoyan Du Jun-ichi Anzai

We review recent progress in the development of electrochemical biosensors based on ferroceneboronic acid (FcBA) and ferrocene (Fc)-modified boronic acids. These compounds can be used to construct electrochemical biosensors because they consist of a binding site (i.e., a boronic acid moiety) and an electrochemically active part (i.e., an Fc residue). By taking advantage of the unique properties...

Journal: :Lab on a chip 2017
Zachary Sonner Eliza Wilder Trudy Gaillard Gerald Kasting Jason Heikenfeld

Eccrine sweat has rapidly emerged as a non-invasive, ergonomic, and rich source of chemical analytes with numerous technological demonstrations now showing the ability for continuous electrochemical sensing. However, beyond active perspirers (athletes, workers, etc.), continuous sweat access in individuals at rest has hindered the advancement of both sweat sensing science and technology. Report...

Journal: :acta medica iranica 0
somayeh mahmoodi department of medical biochemistry, school of medicine, tehran university of medical sciences, tehran, iran. mahdieh rahmatollahi department of pharmacology, school of medicine, tehran university of medical sciences, tehran, iran. fatemeh shahsavari department of oral and maxillofacial pathology dental branch, islamic azad university, tehran, iran. hamed shafaroodi department of pharmacology and toxicology, pharmaceutical sciences branch and pharmaceutical sciences research center, islamic azad university, tehran, iran. siyavash grayesh-nejad department of medical biochemistry, school of medicine, tehran university of medical sciences, tehran, iran. ahmad r. dehpour department of pharmacology, school of medicine, tehran university of medical sciences, tehran, iran. and experimental medicine research center, tehran university of medical sciences, tehran, iran.

increased nitric oxide (no) formation is mechanistically linked to pathophysiology of the extrahepatic complications of cirrhosis. no is formed by either enzymatic or non-enzymatic pathways. enzymatic production is catalyzed by no synthase (nos) while entero-salivary circulation of nitrate and nitrite is linked to non-enzymatic formation of no under acidic ph in the stomach. there is no data on...

Journal: :Lab on a chip 2010
Byung Yang Lee Sung Min Seo Dong Joon Lee Minbaek Lee Joohyung Lee Jun-Ho Cheon Eunju Cho Hyunjoong Lee In-Young Chung Young June Park Suhwan Kim Seunghun Hong

We developed a carbon nanotube (CNT)-based biosensor system-on-a-chip (SoC) for the detection of a neurotransmitter. Here, 64 CNT-based sensors were integrated with silicon-based signal processing circuits in a single chip, which was made possible by combining several technological breakthroughs such as efficient signal processing, uniform CNT networks, and biocompatible functionalization of CN...

Journal: :iranian rehabilitation journal 0
manijeh soleimanifar department of physiotherapy, university of social welfare and rehabilitation, tehran, iran. zahra mosallanezhad department of physiotherapy, university of social welfare and rehabilitation, tehran, iran. morteza asgari sharif university of technology, tehran, iran. marzieh shirazikhah university of social welfare and rehabilitation sciences, tehran, iran. reza fadayevatan aging department, iranian research center on aging, university of social welfare and rehabilitation sciences, tehran. iran. mahyar salavati department of physiotherapy, university of social welfare and rehabilitation sciences, tehran, iran.

objectives: to evaluate the reliability of head and trunk acceleration measured by mtx sensors during walking on level and irregular surfaces and to compare the differences between healthy young and old adults. methods: participants were 20 young female university students and 20 non-faller elderly women in iran, 2013. two mtx sensors were used to measure head and trunk accelerations in the ver...

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