Cerium Oxide/Polypyrrole Nanocomposite as the Matrix for Cholesterol Biosensor | Zendy

Ta Thi Nhat Anh | Zendy; Vu Van Thu | Zendy; Hai-Son Dang | Zendy; VuongHung Pham | Zendy; Phuong Dinh Tam | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Cerium Oxide/Polypyrrole Nanocomposite as the Matrix for Cholesterol Biosensor

Author(s) -

Ta Thi Nhat Anh,

Vu Van Thu,

Hai-Son Dang,

VuongHung Pham,

Phuong Dinh Tam

Publication year - 2021

Publication title -

advances in polymer technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.523

H-Index - 44

eISSN - 1098-2329

pISSN - 0730-6679

DOI - 10.1155/2021/6627645

Subject(s) - polypyrrole , materials science , cholesterol oxidase , nanocomposite , cerium oxide , cerium , biosensor , electrode , nuclear chemistry , oxide , chemical engineering , nanotechnology , organic chemistry , polymer , chemistry , composite material , polymerization , engineering , metallurgy , enzyme

A nanocomposite comprising cerium oxide nanoparticles (CeO2 NPs) and polypyrrole (PPy) was fabricated onto a microelectrode for cholesterol sensing application. The cholesterol oxidase (ChOx) was immobilized on the CeO2 NPs/PPy/electrode by the physical adsorption route. The structure and morphology of the CeO2 NPs/PPy nanocomposite were characterized by X-ray diffraction, field emission scanning electron microscopy, and energy dispersive X-ray spectroscopy. Results showed that the ChOx/CeO2 NPs/PPy/electrode was linearly related with cholesterol in the range of 50 to 500 mg/dL. The sensitivity of ChOx/CeO2 NPs/PPy/electrode was 5.7 × 10 − 6 mA/mg⋅dL−1. The optimal parameters, including pH value and temperature, and selectivity, storage stability, and reproducibility of ChOx/CeO2 NPs/PPy/electrode were investigated.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research