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Updated: Dec 13, 2025
09:09
Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation
Published on: February 5, 2020
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Isothermal Environmental Heat Energy Utilization by Transmembrane Electrostatically Localized Protons at the
1Department of Chemistry and Biochemistry, Old Dominion University, 4402 Elkhorn Ave, Norfolk, Virginia 23529, United States.
ACS Omega
|July 28, 2020
Summary
Alkalophilic bacteria utilize environmental heat for energy via localized protons, a novel thermotrophic process. This discovery explains a long-standing bioenergetic puzzle and reveals heat energy
Area of Science:
- Biochemistry
- Microbiology
- Bioenergetics
Background:
- Alkalophilic bacteria possess a bioenergetic conundrum related to proton movement.
- Understanding proton localization at the membrane interface is crucial for bioenergetics.
Purpose of the Study:
- To elucidate the bioenergetic conundrum in alkalophilic bacteria.
- To discover novel mechanisms of energy utilization in biological systems.
Main Methods:
- Application of the latest theory on transmembrane electrostatic proton localization.
- Analysis of protonic motive force and its relationship with environmental heat energy.
Main Results:
- Elucidation of a decades-longstanding bioenergetic conundrum in alkalophilic bacteria.
- Discovery of isothermal environmental heat utilization by electrostatically localized protons.
- Demonstration that protonic motive force from heat is not constrained by redox-driven proton pumps due to specific membrane properties.
Conclusions:
- Biological systems exhibit a novel thermotrophic feature, utilizing environmental heat for ATP synthesis.
- Transmembrane electrostatic proton localization plays a key role in this heat energy utilization.
- The findings provide new insights into bioenergetics and microbial adaptation.
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