Screen-printed Enzyme Electrodes Using Microcapsules Containing Glucose Oxidase and Mediator
نویسندگان
چکیده
منابع مشابه
Enzyme-Mediator Kinetics for Membrane= and Surface- Immobilized Glucose Oxidase
The scanning electrochemical microscope (SECM) can be used to detect electron-transfer reactions of tlp-generated species that occur at nonconductlve surfaces contalnlng a redox-actlve enzyme. Experlments were carrkd out wlth glucose oxldase lmmoblilzed on several substrates and the apparent kinetics of the enzyme catalyds were measured for several medlator oxldants under condltlons of hlgh pgi...
متن کاملDisposable Non-Enzymatic Glucose Sensors Using Screen-Printed Nickel/Carbon Composites on Indium Tin Oxide Electrodes
Disposable screen-printed nickel/carbon composites on indium tin oxide (ITO) electrodes (DSPNCE) were developed for the detection of glucose without enzymes. The DSPNCE were prepared by screen-printing the ITO substrate with a 50 wt% nickel/carbon composite, followed by curing at 400 °C for 30 min. The redox couple of Ni(OH)₂/NiOOH was deposited on the surface of the electrodes via cyclic volta...
متن کاملScreen-Printed Carbon Electrodes Modified by Rhodium Dioxide and Glucose Dehydrogenase
The described glucose biosensor is based on a screen-printed carbon electrode (SPCE) modified by rhodium dioxide, which functions as a mediator. The electrode is further modified by the enzyme glucose dehydrogenase, which is immobilized on the electrode's surface through electropolymerization with m-phenylenediamine. The enzyme biosensor was optimized and tested in model glucose samples. The bi...
متن کاملEnzyme immobilization procedures on screen-printed electrodes used for the detection of anticholinesterase pesticides Comparative study
A comparison between several acetylcholinesterase (AChE) immobilization procedures on the 7,7,8,8-tetracyanoquinodimethane (TCNQ)modified graphite working electrodes is presented. The immobilization methods employed crosslinking with glutaraldehyde in presence of BSA protein and photopolymerization with poly(vinyl alcohol) bearing styrylpyridinium groups (PVA-SbQ). The main variations were rela...
متن کاملScreen Printed Electrodes for Biosensor Application: Reproducibility, Sensitivity and Stability
Screen printed electrodes (SPEs) have been prepared in the Biosensor Lab @ ENEA, according to different layouts and configurations, i.e. front-back or concentric geometry. Different pastes and composition have been tested depending on the application and requirements for flow or batch measurements. In order to optimize the quality of the electrochemical response, graphite pastes and metal doped...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Electrochemistry
سال: 2008
ISSN: 2186-2451,1344-3542
DOI: 10.5796/electrochemistry.76.569