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A fast and facile electrochemical sensor for the detection of an important anti-cancer drug, 5-fluorouracil, is fabricated using a gold nanoparticle decorated multiwall carbon nanotube (GNP-MWCNT) composite modified electrode. GNP-MWCNT composite has been prepared by a simple one-pot synthesis in the presence of chitosan, which acts as a reducing as well as stabilizing agent. Synthesized GNP-MWCNT...
A simple and controllable one-step electrodeposition method for the preparation of a chitosan–carbon nanotubes–gold nanoparticles (CS–CNTs–GNPs) nanocomposite film was used to fabricate an immunosensor for detection of carcinoembryonic antigen (CEA). The porous three-dimensional CS–CNTs–GNPs nanocomposite film, which offered a large specific surface area for immobilization of antibodies, exhibited...
A new amperometric glucose biosensor was constructed, based on the immobilization of glucose oxidase (GOx) with cross-linking in the matrix of chitosan on a glassy carbon electrode, which was modified by layer-by-layer assembled carbon nanotube (CNT)/chitosan (CHIT)/gold nanoparticles (GNp) multilayer films. With the increasing of CNT/CHIT/GNp layers, the response current to H 2 O 2 ...
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