Al and Fe co-doped transparent conducting ZnO thin film for mediator-less biosensing application | Zendy

Shibu Saha | Zendy; Vinay Gupta | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Al and Fe co-doped transparent conducting ZnO thin film for mediator-less biosensing application

Author(s) -

Shibu Saha,

Vinay Gupta

Publication year - 2011

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.3654497

Subject(s) - glucose oxidase , biosensor , materials science , doping , cyclic voltammetry , thin film , conductivity , layer (electronics) , chemical engineering , electrode , analytical chemistry (journal) , electrochemistry , nanotechnology , chemistry , optoelectronics , chromatography , engineering

Highly c-axis oriented Al and Fe co-doped ZnO (ZAF) thin film is prepared by pulsed laser deposition. Fe introduces redox centre along with shallow donor level while Al doping enhances conductivity of ZnO, thus removing the requirement of both mediator and bottom conducting layer in bioelectrode. Model enzyme (glucose oxidase), was immobilized on surface of ZAF matrix. Cyclic voltammetry and photometric assay show that prepared bio-electrode is sensitive to glucose concentration with enhanced response of 0.18 μAmM-1cm-2 and low Km ∼ 2.01 mM. The results illustrate that ZAF is an attractive matrix for realization of miniaturized mediator-less solid state biosensor

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