In vitro degradation of biodegradable metal Zn and Zn/Fe-couples and their application as conductors in biodegradable sensors

Author

Luo, M. ; Shen, W. ; Wang, Y. ; Allen, M.G.

Author_Institution

Georgia Inst. of Technol., Atlanta, GA, USA

fYear

2015

fDate

21-25 June 2015

Firstpage

1370

Lastpage

1373

Abstract

This paper reports a systematic in vitro degradation study of biodegradable metal zinc and zinc/iron (Zn/Fe)-couples, and explores the application of Zn/Fe-couples as the conductors in completely biodegradable sensors. By electrically connecting a bulk biodegradable metal (Zn) to a small, discontinuous amount of more active biodegradable metal (Fe), the degradation rate of the entire galvanic metal couple can be tailored by altering the Zn:Fe exposed area ratio without reducing the resistance of the conductor. This exploitation of galvanic corrosion couples to design the degradation of biodegradable metals suggests the potential for expanding the number of candidate degradable metals available for MEMS.

Keywords

bioMEMS; biodegradable materials; biomedical equipment; corrosion; iron; microsensors; zinc; MEMS; Zn; Zn-Fe; biodegradable metal zinc; biodegradable metal zinc-iron couples; biodegradable sensors; bulk biodegradable metal; conductors; galvanic corrosion couples; galvanic metal couple; in vitro degradation; Corrosion; Degradation; Inductors; Iron; Loss measurement; Zinc; Galvanic corrosion; biodegradable metals; biodegradable sensor; iron; zinc;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), 2015 Transducers - 2015 18th International Conference on

Conference_Location

Anchorage, AK

Type

conf

DOI

10.1109/TRANSDUCERS.2015.7181187

Filename

7181187