ELECTROCHEMICAL CHARACTERIZATION OF SEMICONDUCTOR BASED BIOSENSOR

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RAHMANIAN REZA; MOZAFFARI SAYED AHMAD

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Seminar Paper

Paper Information

Seminar: ANNUAL ELECTROCHEMISTRY SEMINAR OF IRAN
Year:2014 | Issue:10

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Title

ELECTROCHEMICAL CHARACTERIZATION OF SEMICONDUCTOR BASED BIOSENSOR

Author(s)

RAHMANIAN REZA | MOZAFFARI SAYED AHMAD | Issue Writer Certificate

Keywords

NANOSTRUCTURED ZNO

UREA BIOSENSOR

POLYMER

IMPEDIMETRIC ASSESSMENT

Abstract

UREA IS AN IMPORTANT MARKER FOR STUDIES OF RENAL FUNCTION. THE NORMAL LEVEL OF UREA IN SERUM IS FROM 15 TO 40 MG/DL (1.7–8.3 MM) IN BLOOD SERUM AND LEVEL INCREASES UP TO 100 MM UNDER PATHOPHYSIOLOGICAL CONDITIONS [1]. AN INCREASE IN UREA LEVEL IN BLOOD AND URINE CAN BE CAUSED BY URINARY TRACT OBSTRUCTION, RENAL FAILURE, BURNS, DEHYDRATION AND SHOCK. MOREOVER, REDUCED UREA LEVEL MAY BE SEEN IN HEPATIC FAILURE, NEPHRITIC SYNDROME, AND CACHEXIA WHICH MADE UREA ANALYSIS AS A CONSIDERABLE AREA IN CLINICAL AND AGRICULTURAL CHEMISTRY. ELECTRODEPOSITED ZINC OXIDE (ZNO) WAS DESIGNED TO ACHIEVE NANOSTRUCTURED PLATFORM FOR UREASE ENZYME IMMOBILIZATION VIA COVALENT ATTACHMENT. ELECTROCHEMICAL DEPOSITION AS A RELIABLE, COST-EFFECTIVE, MILD PHYSICOCHEMICAL METHOD AND EASILY CONTROLLABLE ELECTROLYTE FORMULA BY ADDING ORGANIC ADDITIVES, PRODUCE NANOSTRUCTURED METAL OXIDES FILMS WITH CONTROLLED MORPHOLOGY AND THICKNESS. IN THIS STUDY, PVA SELECTION CRITERIA AS AN ORGANIC ADDITIVE IN ELECTROCHEMICAL DEPOSITION WAS BASED ON ITS WATER SOLUBILITY, CONTROLLING THE GROWTH AND CRYSTALLIZATION OF ZNO BY TUNING POLYMER CONTENT IN ELECTRODEPOSITION BATH AND ITS REMOVAL BY A SUBSEQUENT POST-ANNEALING TREATMENT OF THE LAYER IN 400OC. SURFACE CHARACTERIZATION OF THE NANOSTRUCTURED ZNO FILM BY FIELD EMISSION-SCANNING ELECTRON MICROSCOPY (FE-SEM) EXHIBITS FILM SURFACE AREA AS AN EXCELLENT PLATFORM FOR ENZYME IMMOBILIZATION. MONITORING OF BIOSENSOR FABRICATION WAS PERFORMED USING CYCLIC VOLTAMMETRY (CV) AND ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY (EIS) TECHNIQUES. THE IMPEDIMETRIC RESULTS WERE EXPLAINED FOR UREA DETECTION.

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APA: Copy

RAHMANIAN, REZA, & MOZAFFARI, SAYED AHMAD. (2014). ELECTROCHEMICAL CHARACTERIZATION OF SEMICONDUCTOR BASED BIOSENSOR. ANNUAL ELECTROCHEMISTRY SEMINAR OF IRAN. SID. https://sid.ir/paper/910108/en

Vancouver: Copy

RAHMANIAN REZA, MOZAFFARI SAYED AHMAD. ELECTROCHEMICAL CHARACTERIZATION OF SEMICONDUCTOR BASED BIOSENSOR. 2014. Available from: https://sid.ir/paper/910108/en

IEEE: Copy

REZA RAHMANIAN, and SAYED AHMAD MOZAFFARI, “ELECTROCHEMICAL CHARACTERIZATION OF SEMICONDUCTOR BASED BIOSENSOR,” presented at the ANNUAL ELECTROCHEMISTRY SEMINAR OF IRAN. 2014, [Online]. Available: https://sid.ir/paper/910108/en

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