ES2.4 - Hydrogel-based chemical sensors

Event
17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria
Chapter
Emerging Systems 2 - Sensing Strategies
Author(s)
G. Gerlach - Technische Universität Dresden, Solid-State Electronics Laboratory, Dresden (Germany)
Pages
318 - 319
DOI
10.5162/IMCS2018/ES2.4
ISBN
978-3-9816876-9-9
Price
free

Abstract

Hydrogels are cross-linked polymer networks able to absorb or to release large amounts of water that can be excited by a large spectrum of different physical (e.g. temperature, electrical voltage, magnetic field) and chemical factors (e.g. pH value). The water uptake is associated with a considerable volume change and a swelling pressure, respectively. Hydrogels can easily be tailored with respect to a certain measurand. Hydrogel-based sensors utilize the hydrogel s swelling by its influence, e.g., on the swelling pressure, the deflection or the refractive index. This contribution will report on recent sensor developments at the Solid-State Electronics Laboratory at Technische Universität Dresden, Germany.

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