Microbial Biosensors

Microbial biosensors use living microorganisms as biological recognition elements to detect chemical or physical stimuli. These sensors exploit metabolic, genetic, or physiological responses of microbes to specific substances. When microbes encounter target compounds, they produce measurable signals such as electrical currents, fluorescence, or pH changes. Microbial biosensors are widely applied in environmental monitoring, wastewater treatment, and food safety. Physics governs signal transduction, mass transport, and diffusion processes within the sensing system. These biosensors offer advantages such as low cost, high specificity, and self-regeneration. They are particularly effective for detecting pollutants and toxins. Advances in synthetic biology and microfabrication have enhanced microbial biosensor performance. By integrating microbiology with physical sensing principles, microbial biosensors provide sustainable and versatile detection platforms.