Biotransducer | Open Access Journals

Biosensors & Bioelectronics

ISSN: 2155-6210

Open Access


A biotransducer is a part of a biosensor system for recognition-transduction. It consists of two closely coupled parts; a bio-recognition layer, and a physicochemical transducer that transforms a biochemical signal to an electronic or optical signal by working together. Usually, the bio-recognition layer contains an enzyme or some other binding protein such as an antibody. However, the bio-recognition layer may also contain oligonucleotide sequences, subcellular fragments such as organelles (e.g. mitochondria), and receptors carrying fragments (e.g. cell wall), single whole cells, small numbers of cells on synthetic scaffolds, or thin slices of animal or plant tissue. This adds selectivity and precision to the biosensor. In direct and regulated touch with the recognition sheet, the physicochemical transducer is usually in. As a result of the analyte's presence and biochemical activity (target of interest), a physico-chemical shift is created within the layer of biorecognition that is calculated by the physicochemical transducer generating a signal proportionate to the analyte 's concentration. The magnetic, optical , mechanical, gravimetric, pyroelectric, or piezoelectric transducer can be the physicochemical transducer. Biosensors can be categorized according to the form of biotransducer as shown to the right.

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