نتایج جستجو برای: modified screen printed electrode
تعداد نتایج: 402482 فیلتر نتایج به سال:
In this paper, the multi-walled carbon nanotubes modified screen-printed electrode (MWCNTs/SPE) was prepared and the MWCNTs/SPE was employed for the electrochemical determination of the antioxidant substance chlorogenic acids (CGAs). A pair of well-defined redox peaks of CGA was observed at the MWCNTs/SPE in 0.10 mol/L acetic acid-sodium acetate buffer (pH 6.2) and the electrode process was ads...
A biosensor for 3-hydroxybutyrate (3-HB) involving immobilization of the enzyme 3-hydroxybutyrate dehydrogenase onto a screen-printed carbon electrode modified with reduced graphene oxide (GO) and thionine (THI) is reported here. After addition of 3-hydroxybutyrate or the sample in the presence of NAD⁺ cofactor, the generated NADH could be detected amperometrically at 0.0 V vs. Ag pseudo refere...
A conductometric urea biosensor based on sol–gel-immobilized urease on a screen-printed inter-digitated array (IDA) electrode has been developed. The screen-printed thick-film IDA electrode has proven to be an excellent conductometric transducer in which the admittance signal was dominated by the conductance signal and the resulting dynamic range was wide enough to be employed for the construct...
Vapor-phase detection of the model organophosphate (OP) malathion was achieved using enzymes encapsulated in peptide nanotubes and attached to gold screen printed electrodes. The peptide nanotubes had horseradish peroxidase (HRP) encapsulated inside and both acetylthiocholine (ASCh) and acetylcholinesterase (AChE) coated on the outside. ASCh hydrolysis, which produces thiocholine, was catalyzed...
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