Enzymeless determination of cholesterol using gold and silver nanoparticles as electrocatalysts / Okhokhonin A. V.,Saraeva S. Yu.,Matern A. I.,Kozitsina A. N. // JOURNAL OF ANALYTICAL CHEMISTRY. - 2017. - V. 72, l. 4. - P. 354-361.

ISSN/EISSN:

1061-9348 / 1608-3199

Type:

Article

Abstract:

We present the results of synthesis and study of the electrocatalytic activity of gold and silver nanoparticles of different composition (individual metals, core-shell particles, nanoalloys, and particles synthesized electrochemically), immobilized on the surface of a glassy carbon electrode, with respect to cholesterol. A surfactant (cetyltrimethylammonium bromide) is selected to create an aqueous-organic emulsion of cholesterol. It is demonstrated that nanoparticles with a gold core and a silver shell with the regression equation of I = 1.4 x 10(-5) c (chol) + 5.8 x 10(-5) (R (2) = 0.97) and silver nanoparticles synthesized electrochemically with the regression equation of I = 1.0 x 10(-5) c (chol) + 3.0 x 10(-4) (R (2) = 0.95) possess optimal electrocatalytic characteristics.

Author keywords:

electrocatalysis; nanoparticles; cholesterol; voltammetry; chronoamperometry; gold; silver HYDROGEN-PEROXIDE SENSOR; GLASSY-CARBON ELECTRODE; ELECTROCHEMICAL BIOSENSORS; OXIDASE

DOI:

10.1134/S1061934817040116

Web of Science ID:

ISI:000399822400002

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	APR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1608-3199
Keywords-Plus	HYDROGEN-PEROXIDE SENSOR; GLASSY-CARBON ELECTRODE; ELECTROCHEMICAL BIOSENSORS; OXIDASE
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Analytical
Author-Email	a.v.ohohonin@urfu.ru
ResearcherID-Numbers	Kozitsina, Alisa/S-6317-2017
Number-of-Cited-References	32
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	4
Journal-ISO	J. Anal. Chem.
Doc-Delivery-Number	ES8QR