2006
DOI: 10.1016/j.aca.2005.10.008
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Covalent immobilization of cholesterol esterase and cholesterol oxidase on polyaniline films for application to cholesterol biosensor

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Cited by 124 publications
(77 citation statements)
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“…58,59 Singh et al 58 have attempted to modify the electrochemically deposited PANI films using cholesterol oxidase (CHOx), cholesterol esterase (ChEt), and HRP enzymes and investigated their optical and electrochemical biosensing response, toward total cholesterol, following the pathways 4 and 5 shown in Figure 4. The designed bioelectrodes showed wide detection range, decent sensitivity, and reasonable stability; however, there is enough scope for improvement in the response time and the apparent Michaelis-Menten constant (K m app ) parameter (indicative of enzyme-analyte interactions) of these bioelectrodes.…”
Section: Polyaniline-based Cholesterol Biosensorsmentioning
confidence: 99%
“…58,59 Singh et al 58 have attempted to modify the electrochemically deposited PANI films using cholesterol oxidase (CHOx), cholesterol esterase (ChEt), and HRP enzymes and investigated their optical and electrochemical biosensing response, toward total cholesterol, following the pathways 4 and 5 shown in Figure 4. The designed bioelectrodes showed wide detection range, decent sensitivity, and reasonable stability; however, there is enough scope for improvement in the response time and the apparent Michaelis-Menten constant (K m app ) parameter (indicative of enzyme-analyte interactions) of these bioelectrodes.…”
Section: Polyaniline-based Cholesterol Biosensorsmentioning
confidence: 99%
“…2). Electrochemical transducers have been effectively utilized for the estimation of cholesterol in the system (Charpentier & Murr, 1995;Singh et al, 2006;Zhou et al, 2006;Arya et al, 2007). Based on number and reliability of optical methods, a variety of optical transducers have been employed for cholesterol sensing, namely monitoring: luminescence, change in color of dye, fluorescence and others (Arya et al, 2008).…”
Section: Biosensors In Cardiovascular Diseasementioning
confidence: 99%
“…This result is in good agreement with that of the polymer based cholesterol biosensors. 17,19,21,36 The pH value has important effects on enzyme activity and thus enzyme activity should change with the pH of buffer. The sensitivities of Pt/PoPD/ChOx enzyme electrode as function of pH are shown in Figure 4.…”
Section: Effects Of Buffer Concentration and Phmentioning
confidence: 99%
“…Unlike various methods that used in development a biosensor, electropolymerization presents many advantages such as reproducibility, thickness control and the uniformity of the polymer film and give permission to simple preparation of polymer film modified electrodes. 32 The conducting polymers such as polypyrrole, 3,[33][34][35] polyaniline 17,36 and polythiophene 37 have been widely used for the biosensors development. These polymers have a high conductivity, stability and also amount of biomaterial can be controlled during electropolymerization process.…”
Section: (1)mentioning
confidence: 99%