TY - JOUR
T1 - Microwave-assisted synthesis of localized surface plasmon resonance enhanced bismuth selenide (Bi2Se3) layers for non-enzymatic glucose sensing
AU - Savariraj, A. Dennyson
AU - Vinoth, V.
AU - Mangalaraja, R. V.
AU - Arun, T.
AU - Contreras, David
AU - Akbari-Fakhrabadi, Ali
AU - Valdés, Héctor
AU - Banat, Fawzi
N1 - Funding Information:
The authors A.Dennyson Savariraj and R.V.Mangalaraja gratefully acknowledge the FONDECYT Post-doctoral Project No. 3170640 , Government of Chile, Santiago, for the financial assistance. The authors wish to thank Julio Pugin Rios, Ricardo Oliva Carrasco, Alexis Estay Valencia and Monica Del Carmen Uribe Sazo in the microscopy facility at the University of Concepcion for their kind cooperation.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - 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 non-enzymatic 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.
AB - 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 non-enzymatic 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.
KW - Bismuth selenide
KW - Localized surface plasmon resonance (LSPR)
KW - Microwave synthesis
UR - http://www.scopus.com/inward/record.url?scp=85076238590&partnerID=8YFLogxK
U2 - 10.1016/j.jelechem.2019.113629
DO - 10.1016/j.jelechem.2019.113629
M3 - Article
AN - SCOPUS:85076238590
VL - 856
JO - Journal of Electroanalytical Chemistry
JF - Journal of Electroanalytical Chemistry
SN - 1572-6657
M1 - 113629
ER -