Biological Sensors

Sensors, Biological


technological measuring devices attached to an animal, person, or plant in order to record biological processes.

Modern biological sensors convert the biophysical or biochemical quantity being investigated into some sort of electrical signals. Biological sensors that record physiological factors are called physiological sensors. Biological sensors are used in biotelemetry for the remote observation of animal behavior under natural or near-natural conditions (for example, in studying migrations of fish or birds), in ecological research, in studying the body state of aviators and astronauts, in the physiology of work and athletics, and in clinical practice. Some biological sensors are applied to the body surface (for example, thermocouples for measuring skin temperature, electrodes in electroencephalography and electrocardiography, and sensors attached to an animal to record its movements in an experimental chamber or open-air cage). Other sensors are inserted inside the body: they are implanted (for example, electrodes in the brain), introduced by means of a probe, or introduced in the form of so-called radiocapsules into the cavities of the stomach, heart, or other organs. Biological sensors are classified according to the factor recorded (movement, growth, respiration, cardiac activity), the type of contact with the body, and the principle of operation.

References in periodicals archive ?
The current generation of biological sensors has only a limited detection capability and requires that the unit's paper filter be physically removed and analyzed at a laboratory.
Thus, a packaging base is needed that can support mechanical, acoustical, thermal, chemical, seismic, environmental and biological sensors, as well as optical and RF communications.
Principles of Chemical and Biological Sensors,' Chemical Analysis: A Series of Monographs on Analytical Chemistry and Its Applications, Dermot Diamond, Ed.
Unintended blood clotting has thwarted the development of implanted biological sensors, such as those for detecting gases and acidity in blood, says Meyerhoff.
The future in India Electronic Security Equipment market is pointing towards integrated security solutions, created by integrating multiple systems, including video, intrusion, video analytics, fire, access control, HVAC, chemical and biological sensors, etc.
The report mainly covers the following sensors: - Chemical and biological sensors - Image sensors - Pressure sensors - Flow sensors - Temperature sensors - Level sensors - Gas sensors TechNavio's report, Global Sensors Market 2014-2018, has been prepared based on an in-depth market analysis with inputs from industry experts.
Tutorial reviews are also presented on coupling chemistries for modifying and functionalizing surfaces to create advanced biointerfaces, surface plasmon resonance-based biosensors, surface modification and adhesion, and modern biological sensors.
In addition to wearable microphones and biological sensors, applications of the fibres could include loose nets that monitor the flow of water in the ocean and large-area sonar imaging systems with much higher resolutions: A fabric woven from acoustic fibres would provide the equivalent of millions of tiny acoustic sensors.
The book is presented in 11 chapters which cover topics such as scaling effects in organic transistors and transistor-based chemical sensors, organic thin-film transistors for inorganic substance monitoring, strain and pressure sensors based on organic field-effect transistors, Integrated pyroelectric sensors, organic chemical and biological sensors based on light-emitting diodes, organic semiconductor lasers as integrated light sources for optical sensors, and electrophoretically deposited polymers for organic electronics.
Other uses for data mining may include using the system to monitor data from biological sensors, medical databases and to protect networks from hackers.
DNA can link tiny particles of cadmium selenide into three-dimensional arrays potentially useful as biological sensors (156: 181).

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