Summary
A sensor is a tool used to directly measure the test compound (analyte) in a sample. Ideally, such a device is capable of continuous and reversible response and should not damage the sample. Nanosensor refers to a system in which at least one of the nanostructures is used to detect gases, chemicals, biological agents, electric fields, light, heat, etc. in its construction. The use of nanomaterials significantly increases the sensitivity of the system. In biosensors, the part of the system used to attach to the analyte and specifically detect it is a biological element (such as a DNA strand, antibody, enzyme, whole cell). The “Nano Biosensors” series reviews various types of biosensors and biochips (including an array of biosensors), emphasizing the role of nanostructures, developed for med
Regional applicability
This is a technical review of biosensor engineering principles without geographic specificity. The findings are universally applicable to laboratory and diagnostic instrument development globally, including in the United Kingdom, but do not address agricultural, soil, or food production systems.
Key measures
Sensor sensitivity, resolution, detection capability, electrochemical signal transduction methods
Outcomes reported
The paper reviews nano biosensor design, operation principles, and electrochemical detection techniques including potentiometric, chronometric, voltammetric, impedance and field-effect transistor methods. It discusses how nanostructures (nanoparticles, nanotubes, nanowires, nanopores) improve sensor sensitivity and diagnostic capability.
Topic tags
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