Thin and flexible bio-batteries made of electrospun cellulose-based membranes

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Baptista, AC (Author) Other; José Inácio Martins (Author) FEUP; Fortunato, E (Author) Other; Martins, R (Author) Other; Borges, JP (Author) Other; Ferreira, I (Author) Other

Journal

Title: Biosensors and Bioelectronics

Vol. 26 No. 4

Pages: 2742-2745

ISSN: 0956-5663

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 24 Citations

ISI Web of Science

Scopus - 30 Citations

Scientific classification

FOS: Engineering and technology > Chemical engineering

Other information

Authenticus ID: P-002-VTP

DOI: 10.1016/j.bios.2010.09.055

Abstract (EN): The present work proposes the development of a bio-battery composed by an ultrathin monolithic structure of an electrospun cellulose acetate membrane, over which was deposited metallic thin film electrodes by thermal evaporation on both surfaces. The electrochemical characterization of the bio-batteries was performed under simulated body fluids like sweat and blood plasma [salt solution - 0.9% (w/w) NaCl]. Reversible electrochemical reactions were detected through the cellulose acetate structure. Thus, a stable electrochemical behavior was achieved for a bio-battery with silver and aluminum thin films as electrodes. This device exhibits the ability to supply a power density higher than 3 mu W cm(-2). Finally, a bio-battery prototype was tested on a sweated skin, demonstrating the potential of applicability of this bio-device as a micropower source.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4