Electrospun fibers with many advantages such as nano-structure, large specific surface area, high porosity, have been widely applied in the field of sensors. This paper mainly introduces latest development of electrospun fiber applications in biosensors, gas sensors and metal ion sensors. Biosensors are introduced according to the types of sensitive materials (enzyme, metal oxides, other biological materials except enzyme) immobilizated on electrospun fibers. Gas sensors based on electrospun fibers are simply summaried in organic gas sensors and inorganic gas sensors, and some typical examples are introduced. Some novel copper ion sensors based on electrospun fibers are also discussed to example for the electrospun fiber applications in metal ion sensors. In the conclusion part, two aspects are proposed to improve the applications of electrospun fibers in sensors.
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