PENSOR: a Xerox machine linked pencil-based dengue biosensor towards draw, detect & do-it-yourself approach

Le résumé fourni par la source

In the current work, we developed an affordable, simple pencil-based biosensor that uses hand sketching to build electrodes directly on paper. The 140-GSM sheet was used as a paper substrate for electrode design because it provides a good liquid-retained surface for the sensor. The electrode stencil was made using online art tool software and printed on a Xerox machine, allowing for exact measurement and the fabrication of the appropriate pencil electrode. Furthermore, a high graphite pencil was used to filling the Xerox machine-designed electrode blueprint, after which the pencil electrode was modified with ZnO-Nanorods, and the surface of the created pencil-based biosensor was characterised using a FE-SEM approach. The developed sensor efficiently detected lowest concentration of dengue virus antigen (DENV-Ag), i.e. 0.1 µg/mL, and the results were confirmed by a variety of electrochemical analytical methods, including CV and EIS. As a result, the study indicates that the pencil may be an excellent diagnostic tool for drawing, detecting, and do-it-yourself approaches since it is simple and affordable to create an electrode with sensitive detection of infectious diseases.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.