KSBB Journal
- Volume 11 Issue 4
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- Pages.489-496
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- 1996
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- 1225-7117(pISSN)
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- 2288-8268(eISSN)
Electrocatalytic Properties of Metal-dispersed Carbon Paste Electrodes for Reagentless L-lactate Biosensors
금속이 첨가된 탄소전극의 전기화학적 특성과 이를 이용한 L-lactate 바이오센서의 개발
Abstract
Metal dispersed carbon paste electrodes were fabricated, and their electrochemical properties were investigated. Among various metal dispersed carbons, platinum-dispersed carbon paste electrode showed most efficient electrocatalytic characteristics. The overpotential for the oxidation of NADH was significantly lowered in the platinum-dispersed carbon paste electrode, and catalytic current was also enhanced. Based on these electrocatalytic observations, L-lactate biosensor using L-lactate dehydrogenase was constructed to evaluate its performance in terms of sensitivity and stability.
Carbon paste electrode를 채용함으로써 L-lac tate 측정용의 전기화학식 바이오센서를 성공적으로 개발할 수 있었다. 특히 뛰어난 electrocatalytic activity를 갖는 platinum이 첨가된 platinum-CPE 를 이용하여 낮은 전위에서의 NADH의 전기척 산 화가 가능하였다. Enzyme (lactate dehydrogena ase)과
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