Growth of non-enzymatic cholesterol biosensor using TiO2 decorated graphene oxide with bare GCE and PPy-GCE

被引：6

作者：

Deivanayaki, S. ^{[1
]}

Jayamurugan, P. ^{[2
]}

Ashokan, S. ^{[3
]}

Krishnan, V. Gopala ^{[4
]}

Yogeswari, B. ^{[5
]}

Ubaidullah, Mohd ^{[6
]}

Pandit, Bidhan ^{[7
]}

Sarma, G. V. S. S. ^{[8
]}

Narsetti, Hemanth Kumar ^{[9
]}

机构：

[1] Sri Ramakrishna Engn Coll, Dept Phys, Coimbatore 641022, Tamilnadu, India

[2] Sri Ramakrishna Mission Vidyalaya Coll Arts & Sci, Dept Phys, Coimbatore 641020, Tamilnadu, India

[3] Bannari Amman Inst Technol, Dept Phys, Erode 638401, Tamilnadu, India

[4] DR NGP Arts & Sci Coll, Dept Phys, Coimbatore 641048, Tamilnadu, India

[5] Sri Eshwar Coll Engn, Dept Phys, Coimbatore 641202, India

[6] King Saudi Univ, Dept Chem Coll Sci, Riyadh 11451, Saudi Arabia

[7] Universidad, Dept Mat Sci & Engn & Chem Engn, Carlosde Madrid 3, Ave Univ 30, Leganes 28911, Madrid, Spain

[8] Malla Reddy Engn Coll A Maisammaguda, Dept Phys, Malkajgiri Secundrabad 500100, Telangana, India

[9] St Peters Engn Coll, Dept Phys, Hyderabad 500100, India

来源：

JOURNAL OF THE INDIAN CHEMICAL SOCIETY | 2023年 / 100卷 / 03期

关键词：

Clinical analysis; Non-enzymatic; Nanomaterials; Chemical oxidative polymerization; PHOTOCATALYTIC DEGRADATION; ELECTROCHEMICAL SENSOR; VANILLIN; COMPOSITE; NANOCOMPOSITES; NANOMATERIALS; SENSITIVITY; FABRICATION;

D O I：

10.1016/j.jics.2023.100906

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, we report an electrochemical cholesterol biosensor based on cholesterol oxidase(ChOx) enzyme immobilized on TiO2- nanoparticles - reduced graphene oxide(rGO) - polypyrrole (PPy) nanocomposite modified electrode.The electrochemical properties of GCE modified PPy (PPy-GCE) were studied using CV (Cyclic Vol-tammetry) and DPV (Differential Pulse Voltammetry). The developed sensor exhibited piecewise linearity from 0.1 mu M to 1 mu M and from 1 mu M to 600 mu M with the sensitivity of 61.665 and 0.1466 (2 mA mM x cm) respectively. The limit of detection of the sensor was found to be 32 nm.

引用

页数：7

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