Copper Nanoparticle Modified Pencil Graphite Electrode for Electroanalysis of Adenine

SHARMA, Vimal Kumar and Libuše TRNKOVÁ. Copper Nanoparticle Modified Pencil Graphite Electrode for Electroanalysis of Adenine. Electroanalysis. 2016, vol. 28, No 11, p. 2834-2840. ISSN 1040-0397. Available from: https://dx.doi.org/10.1002/elan.201600237.

Basic information

• Original name: Copper Nanoparticle Modified Pencil Graphite Electrode for Electroanalysis of Adenine
• Authors: SHARMA, Vimal Kumar (356 India, belonging to the institution) and Libuše TRNKOVÁ (203 Czech Republic, guarantor, belonging to the institution).
• Edition: Electroanalysis, 2016, 1040-0397.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10403 Physical chemistry
• Country of publisher: Germany
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 2.851
• RIV identification code: RIV/00216224:14310/16:00093646
• Organization unit: Faculty of Science
• Doi: http://dx.doi.org/10.1002/elan.201600237
• UT WoS: 000387891400027
• Keywords (in Czech): nanočástice mědi; pentelková grafitová elektroda; oxidace adeninu; voltametrie s lineární poalrizací; elektrochemický biosensing
• Keywords in English: Copper nanoparticles; pencil graphite electrode; adenine oxidation; linear sweep voltammetry; electrochemical biosensing
• Tags: AKR, rivok

Abstract

A pencil graphite electrode (PeGE) modified with copper nanoparticles (CuNPs) was employed for sensitive electrochemical detection of adenine (Ade). The CuNPs were synthesized by the chemical reduction of copper (II) sulphate by borohydride in the presence of polyvinylpyrrolidone (PVP) and immobilized onto the electrode surface by means of physical adsorption. The cyclic voltammetry (CV) results illustrate that the CuNP-modified PeGE provides at least fivefold increase of Ade oxidation peaks compared to the bare PeGE. The detection limit in CV corresponds to value of 200nM. The accumulation of Ade through the complex with Cu (I) allows us to introduce the novel biosensor for the determination not only of adenine but also purines capable to form analogical Cu (I) complexes.

Links

• EE2.3.30.0009, research and development project: Name: Zaměstnáním čerstvých absolventů doktorského studia k vědecké excelenci