CARBON NANOTUBE-MODIFIED ELECTRODE

A NON-ENZYMATIC BIOSENSOR BASED ON SELECTIVE VOLTAMMETRY USING FUNCTIONALIZED HYBRID SOLGEL IN ITS ELECTRODE IS PROPOSED. A PREFERRED EMBODIMENT OF THE ELECTRODE COMPRISES A CONDUCTOR LAYER (3) WHICH IS DISPOSED ON A SUBSTRATE (2), CARBON NANOTUBES (CNT) (5) WHICH ARE DISPOSED ON AT LEAST A PORTION...

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Bibliographische Detailangaben
Hauptverfasser:	TEH AUN SHIH, MOHD RAIS AHMAD, SAGIR ALVA
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES MEASURING NANOTECHNOLOGY PERFORMING OPERATIONS PHYSICS SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	A NON-ENZYMATIC BIOSENSOR BASED ON SELECTIVE VOLTAMMETRY USING FUNCTIONALIZED HYBRID SOLGEL IN ITS ELECTRODE IS PROPOSED. A PREFERRED EMBODIMENT OF THE ELECTRODE COMPRISES A CONDUCTOR LAYER (3) WHICH IS DISPOSED ON A SUBSTRATE (2), CARBON NANOTUBES (CNT) (5) WHICH ARE DISPOSED ON AT LEAST A PORTION OF THE CONDUCTOR LAYER (3) SUCH THAT THE CNT'S BASAL (5A) AND DISTAL ENDS (5B) ARE RESPECTIVELY DISPOSED IN BETWEEN THE CONDUCTOR LAYER (3) AND A CNT-FERROCENE SOLGEL COMPOSITE (6) DEPOSITED ONTO THE DISTAL END (5B) OF THE CNT (5) WITHIN A DAM STRUCTURE (7). THE CONDUCTOR LAYER (3) MAY BE SILVER, PLATINUM, GOLD OR CARBON. PREFERABLY, A CATALYST SUPPORT (4) IS DEPOSITED ON THE SUBSTRATE (2) AND A LIQUID-FORM NICKEL CATALYST IS DEPOSITED ON THE CATALYST SUPPORT. THE CNT-FERROCENE SOLGEL COMPOSITE IS MADE BY VIGOROUSLY MIXING (BY WEIGHT) CNT 10-35%, TETRAETHYLORTHOSILICATE 20-40%, METHYLTRI-ETHOXYSILICON 20-40%, PHENYLTRIETHOXYSILICON 20-40%; AND FERROCENE 0.1 TO 10%. THE MIXTURE IS SONICATED FOR ABOUT 1 MINUTE AND THEN LEFT TO STAND FOR ABOUT 20 HOURS.