Journal ArticleDOI
Determination of tryptophan using electrode modified with poly(9-aminoacridine) functionalized multi-walled carbon nanotubes
Sevgi Güney,Gulcemal Yildiz +1 more
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TLDR
In this article, two kinds of electrochemical sensors were prepared using glassy carbon electrodes modified with poly(9-aminoacridine) and PAA-functionalized multi-walled carbon nanotubes (PAA-MWCNTs) for the determination of tryptophan (Trp) in the presence of tyrosine (Tyr).About:
This article is published in Electrochimica Acta.The article was published on 2011-12-15. It has received 35 citations till now. The article focuses on the topics: Cyclic voltammetry & Differential pulse voltammetry.read more
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Journal ArticleDOI
Green synthesis of silver nanoparticles–graphene oxide nanocomposite and its application in electrochemical sensing oftryptophan
TL;DR: The experimental results demonstrated that the nanocomposite possessed the specific features of both silver nanoparticles and graphene, and the intrinsic high specific area and the fast electron transfer rate ascribed to the nanohybrid structure could improve its electrocatalytic performance greatly.
Journal ArticleDOI
Multi-walled carbon nanotube modified carbon paste electrode as a sensor for the amperometric detection of L-tryptophan in biological samples.
Tony Thomas,Ronald J. Mascarenhas,Ozma J. D'Souza,Praveen Martis,Joseph Dalhalle,B.E. Kumara Swamy +5 more
TL;DR: The modified electrode showed good reproducibility, long-term stability and anti-fouling effects, and Nyquist plots revealed the least charge transfer resistance for the modified electrode.
Journal ArticleDOI
Synthesis of Ag-MoS2/chitosan nanocomposite and its application for catalytic oxidation of tryptophan
TL;DR: In this paper, a simple and low-cost synthesis approach was proposed for the development of a simple electrochemical sensor for the determination of tryptophan (Try), in which a graphene-like molybdenum sulfide was successfully obtained, and silver nanoflakes (AgNFs) were directly synthesized on the surface of molybenium sulfide (MoS2) films, in this process chitosan (CS) and ascorbic acid (AA) acted as stabilizer and reducing agent, respectively.
Journal ArticleDOI
Facile Preparation of Fe3O4/C Nanocomposite and Its Application for Cost-Effective and Sensitive Detection of Tryptophan.
TL;DR: The proposed Fe3O4/C/GCE displayed superior analytical performances toward Trp determination, with two wide detection ranges and a low detection limit, and successful detection of Trp in human serum samples further validate the practicability of the proposed sensor.
Journal ArticleDOI
Electrochemical determination of L-Tryptophan based on a multiwall carbon nanotube/Mg-Al layered double hydroxide modified carbon paste electrode as a sensor
Ozma J. D’Souza,Ronald J. Mascarenhas,Tony Thomas,Irishi N. N. Namboothiri,Michael Rajamathi,Praveen Martis,Joseph Dalhalle +6 more
TL;DR: In this paper, a biocompatible modified carbon paste electrode (CPE) for the selective detection of L -Tryptophan (Trp) at physiological pH in the presence of Ascorbic acid (AA), Dopamine (DA) and Uric acid (UA) has been constructed.
References
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Book
Electrochemical Methods: Fundamentals and Applications
Allen J. Bard,Larry R. Faulkner +1 more
TL;DR: In this paper, the authors present a comprehensive overview of electrode processes and their application in the field of chemical simulation, including potential sweep and potential sweep methods, coupled homogeneous chemical reactions, double-layer structure and adsorption.
Journal ArticleDOI
Adsorption, autoinhibition and autocatalysis in polarography and in linear potential sweep voltammetry
TL;DR: In this paper, the effects of a strong adsorption of the depolarizer and/or of the product of the electrochemical reaction on the currents obtained in polarography and in linear potential sweep voltammetry (l.p.s.v.) are considered.
Book
Chemical Sensors and Biosensors
TL;DR: In this paper, the Nernst equation was used to describe the properties of sensors and biosensors. But the authors focused on the performance of sensors, focusing on the precision, accuracy and repeatability of different biomaterials and transducers.
Journal ArticleDOI
Reversible conversion of conducting polymer films from superhydrophobic to superhydrophilic
TL;DR: A simple electrochemical process to fabricate superhydrophobic conducting polypyrrole (PPy) films is reported and it is demonstrated that their properties can be switched conveniently from superHydrophobic to superhydphilic by changing the electrical potential.
Journal ArticleDOI
Chemically Modified Carbon Nanotubes for Use in Electroanalysis
TL;DR: A comprehensive review of the use of carbon nanotubes in electroanalytical and bioanalytical applications can be found in this paper, where the authors attempt to comprehensively cover the different chemical and electrochemical modification strategies and research carried out using modified carbon-nanotubes for electroanalytic and bio-analytical purposes.
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