Article ID Journal Published Year Pages File Type
742391 Sensors and Actuators B: Chemical 2013 7 Pages PDF
Abstract

Laser ablated tin oxide quantum dots (SnO2 QDs ∼1–5 nm) uniformly dispersed in a colloidal solution have been electrophoretically deposited onto indium–tin-oxide (ITO) glass for immobilization of xanthine oxidase (XOx) for fabrication of fish freshness biosensor. The results of electrochemical response studies conducted on XOx/SnO2 QDs/ITO bio-electrode reveal higher sensitivity (0.5148 μA/μM cm2), lower Km value (0.022 μM), faster response time (10 s), and wide linear range of 1–400 μM with regression co-efficient as 0.999, higher charge transfer rate constant 1.63 s−1.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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