Explore the Types of Biosensors and How They Tend to Function

30 Nov


A biosensor can be defined as a biological detection system that comprises a biotic module along with a sensor to carry out accurate measurement of a biochemical quantity. Emergence of biosensors came about with the development of enzyme electrodes back in the year 1962.

A standard or conventional biosensor consists of a bio-element such as an antibody or enzyme, and a detecting component or a transducer. These elements are amalgamated altogether through different approaches such as membrane entrapment, chemical bonding, and matrix set-up. In the last few years, biosensors have found their applications in environmental monitoring, several nanomechanical methods, home care diagnostics, and food & beverages industry with a full sway. Moreover, biosensor applications have also become quite predominant in the field of plant ecology to study metabolic methods.

Now, coming to the working principles of the technology, biosensors are wrought based on the norm of signal conversion. These modules include a bio-detection component, a biotransducer, and an automated system that further comprises a display, woofer, and a processor.

The bio-recognition constituent, generally in the form of a bioreceptor, is recommended to intermingle with an explicit analyte. The transducer, on the other hand, tends to process this interaction and yields the required signal. The concentration of the signal output is relative to the accumulation of the analyte. The indicator is then intensified and processed by the automated system.

Based on the mechanism of transduction, biosensors are mainly divided into resonant biosensors and optical detection biosensors.

  • Resonant biosensors take on an auditory wave transducer along with the bioreceptor. Communication between the bioreceptor and the analyte lead to a change in the volume of the bioreceptor. Accordingly, the deep frequency of the audile transducer also fluctuates, which is then properly estimated and this value can be construed by the end-user.
  • Optical detection biosensors, on the other hand, contain a silicon wafer to which protein jots are fettered through chemical bonds. The wafer is put through UV light which makes the antibodies indolent and sluggish. The wafer is then staked and positioned in the analyte, which whips up the formation of diffusion gruff that creates a signal which can be weighed up and intensified.

According to Allied Market Research, the global biosensors market is expected to grow at a significant CAGR from 2019 to 2026. In a nutshell, biosensors are medical contraptions that are mainly used to distinguish the presence of biological affluences, such as a microorganism or a bioparticle. These analytical tools come up with the potential to permute a biological signal into an electrical response. Biosensors mainly entail three parts, including a module that classifies a specimen and crops up signal, a sensory transducer, and a reader ruse.

Rise in the prevalence of protracted diseases like diabetes across the world, increase in R&D activities related to biotechnology, and surge in demand for home care expedients drive the growth of the market in several ways. At the same time, upsurge in awareness about the potential of biosensors in monitoring glucose level in blood has supplemented the market growth even more.

Alex Hillsberg

Alex Hillsberg

Chief editor of review team at FinancesOnline

Chief editor of review team at FinancesOnline Alex Hillsberg is an expert in the area of B2B and SaaS related products. He has worked for several B2B startups in the past and gathered a lot of first hand knowledge about the industry during that time.


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