Science & Methodology
The Science Behind MESSAI
From first principles of bioelectrochemistry to MESSAI’s hierarchical Bayesian inference engine. This is a technical reference for researchers who want to understand the platform’s methodology.
What is a Microbial Electrochemical System?
A Microbial Electrochemical System (MES) is a device that exploits the electrochemical activity of microorganisms to convert chemical energy into electrical energy (or vice versa), or to drive chemical synthesis.
The field spans wastewater treatment (MFCs), hydrogen production (MECs), desalination (MDCs), chemical synthesis (MESes), and biosensing (MSCs) — unified by the common principle of using microbes as electrocatalysts.
The Core Mechanism
Electroactive bacteria at the anode oxidize organic substrates, releasing electrons. These flow through an external circuit to the cathode, generating electrical power while reducing an electron acceptor.
Why Microbes?
Microbes are self-replicating, self-repairing electrocatalysts that operate at ambient temperature and pressure. They can process complex organic waste streams that chemical catalysts cannot handle efficiently.