Microwave-assisted synthesis of localized surface plasmon resonance enhanced bismuth selenide (Bi2Se3) layers for non-enzymatic glucose sensing
Author
dc.contributor.author
Dennyson Savariraj, A.
Author
dc.contributor.author
Vinoth, V.
Author
dc.contributor.author
Mangalaraja, R. V.
Author
dc.contributor.author
Arun, T.
Author
dc.contributor.author
Contreras, David
Author
dc.contributor.author
Akbari-Fakhrabadi, Ali
Author
dc.contributor.author
Valdes, Héctor
Author
dc.contributor.author
Banat, Fawzi
Admission date
dc.date.accessioned
2020-05-04T20:55:39Z
Available date
dc.date.available
2020-05-04T20:55:39Z
Publication date
dc.date.issued
2020
Cita de ítem
dc.identifier.citation
Journal of Electroanalytical Chemistry 856 (2020) 113629
es_ES
Identifier
dc.identifier.other
10.1016/j.jelechem.2019.113629
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/174288
Abstract
dc.description.abstract
Three-dimensional (3D) bismuth selenide (Bi2Se3) nanostructures were synthesized by microwave synthesis using
water as a solvent and hydrazine hydrate as a reducing agent and exfoliated into few layers of Bi2Se3. Bi2Se3- Few
Layers (Bi2Se3- FL) exhibited localized surface plasmon resonance and enhanced electrocatalytic behavior. The
scanning electron microscope (SEM) and transmission electron microscopy (TEM) characterization indicated the
layered structure of Bi2Se3. The electrocatalytic properties of the Bi2Se3-FLmodified GC electrode towards nonenzymatic
glucose oxidation were evaluated by cyclic voltammetry (CV) and chronoamperometry. The
designed non-enzymatic glucose sensor showed a low detection limit of 6.1 μM, a linear range from 10 μM to 100
μM of glucose concentration and a current sensitivity of 0.112 μAμM 1.The electrochemical sensor constructed
using Bi2Se3-FL attained steady-state level within 3 s upon adding glucose and remained stable even after 19 days
with only 17% loss in current signal. The obtained electrodes can be applied for determining glucose in urine
samples. The results obtained here are of great significance to use nanostructured Bi2Se3-FL electrode as a potential
candidate for non-enzymatic glucose detection.
es_ES
Patrocinador
dc.description.sponsorship
Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)
CONICYT FONDECYT
3170640