Yeast bio-batteries

Author(s)

Crespilho, Frank N. ; Brito-Pereira, Ricardo ; Policia, Rita ; Pereira, Nelson ; Sedenho, Graziela C. ; Costa, Carlos M. ; Lanceros-Mendez, Senentxu

• Document type: Journal article
• Source: SUSTAINABLE ENERGY & FUELS; v. 8, n. 22, p. 5-pg., 2024-10-01.

Abstract

In this work, we present the development of a fully rechargeable bio-battery, powered by Saccharomyces cerevisiae and utilizing recyclable PET carbon-based electrodes. Through the integration of yeast with the iota-carrageenan hydrogel and potassium ferricyanide as a redox mediator, the bio-battery consistently delivers 450 mV with excellent cyclability. This eco-friendly approach demonstrates great potential for advancing sustainable energy solutions, particularly in powering low-energy applications such as biomedical devices. Ongoing advancements in membrane design are expected to significantly boost the long-term performance and operational stability of this system, further solidifying its applicability in real-world scenarios. We present a fully rechargeable, eco-friendly bio-battery powered by Saccharomyces cerevisiae on recyclable PET electrodes, with high cyclability and promising applications in sustainable energy solutions for low-power devices. (AU)

• FAPESP's process: 22/09164-5 - Understanding the charge transfer mechanisms in biological and biomimetic systems using in-situ and operando techniques: from fundamental science to energy application
• Grantee: Frank Nelson Crespilho
• Support Opportunities: Regular Research Grants
• FAPESP's process: 23/13288-4 - Development of Electrochemical Nanodevices
• Grantee: Frank Nelson Crespilho
• Support Opportunities: Scholarships abroad - Research