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Tailoring of morphology and crystal structure of CdSe nanostructures by controlling the ratio of triethylenetetraamine and water in their mixed solution
, Article Applied Physics A: Materials Science and Processing ; Volume 107, Issue 2 , May , 2012 , Pages 497-502 ; 09478396 (ISSN) ; Zarghami, V ; Fray, D. J ; Sharif University of Technology
2012
Abstract
The morphological manipulation, structural characterization, and optical properties of different CdSe nanocrystals were reported. Several different CdSe nanostructures, including nanowires, tetrapod crystals, and nanoparticles were grown by varying the volume ratio of triethylenetetraamine (TETA) and water (WA) in their mixed solution. By manipulating the growth driving force (i.e., the degree of supersaturation) and kinetics of the process (i.e., growth rate), the morphology and crystal structure of CdSe nanocrystals can be tailored. Growth driving force changed their morphology from nanowires to tetrapod structures and from the latter structure to nanoparticles. Moreover, kinetics of the...
Concurrent electrophoretic deposition of enzyme-laden chitosan/graphene oxide composite films for biosensing
, Article Materials Letters ; Volume 308 , 2022 ; 0167577X (ISSN) ; Zarghami, V ; Mazaheri, M ; Simchi, A ; Sharif University of Technology
Elsevier B.V
2022
Abstract
We present a procedure for simultaneous deposition of enzyme-laden chitosan/reduced graphene oxide (rGO) film by electrophoretic deposition (EPD) for fast and efficient detection of glucose. The role of rGO nanosheets is studied on the EPD kinetics of the enzyme-laden suspensions. Investigating the performance of the biosensor by electrochemical techniques indicates its high sensitivity (9700 μA.mM−1.cm−2), low limit of detection (4 µM), and suitable selectivity. © 2021 Elsevier B.V