نتایج جستجو برای: enzyme sensor
تعداد نتایج: 428080 فیلتر نتایج به سال:
Background: Azo dyes are the most widely used synthetic colorants in the textile, food, pharmaceutical, cosmetic, and other industries, accounting for nearly 70% of all dyestuffs consumed. Recently, much research attention has been paid to efficient monitoring of these hazardous chemicals and their related metabolites because of their potentially harmful effect on environmental issues. In contr...
Voltage-sensing phosphatase (VSP) consists of a transmembrane voltage sensor and a cytoplasmic enzyme region. The enzyme region contains the phosphatase and C2 domains, is structurally similar to the tumor suppressor phosphatase PTEN, and catalyzes the dephosphorylation of phosphoinositides. The transmembrane voltage sensor is connected to the phosphatase through a short linker region, and phos...
A novel capacitive field-effect sensor for the direct determination of organophosphorus pesticides by the enzyme organophosphorus hydrolase (OPH) is presented. The enzyme OPH hydrolyses organophosphorus compounds catalytically, thus releasing Hþ ions. By means of a silicon-based field-effect sensor, which consists of a layer sequence of Al/p-Si/SiO2 with alternative pH-sensitive materials (Ta2O...
Here we report on the optimisation of a reagentless enzyme sensor for the detection of azide based on the mediated reduction of O2 by a laccase enzyme co-immobilised in a redox hydrogel on electrode surfaces. The sensor response is shown to be influenced by the enzyme loading, the electrolyte pH and ionic strength. The response of the sensor is stable, decreasing by only 25% over a sixteen-hour...
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