Electronic nose to detect hydrogen sulphide developed
Part of: GS Prelims and GS – III – Sci & tech
- An electronic nose with biodegradable polymer and monomer that can detect hydrogen sulphide (H2S) has been developed.
- Developed by : Scientists from the Centre for Nano and Soft Matter Sciences (CeNS), Bangalore, an autonomous institute of the DST
- They have developed an exceptionally sensitive and selective H2S Gas sensor developed by impersonating the neuron responsible for identification of airborne molecules or olfactory receptor neuron (ORN).
- The fabricated sensor consists of a heterostructure consisting of two layers –
- the top layer a monomer and is realized with a novel chemical tris (keto-hydrazone), which is both porous and contains H2S specific functional groups, and
- The bottom layer is the active channel layer which plays a key role in altering the current and mobility of charge carriers.
Do you know?
- Hydrogen sulphide is a poisonous, corrosive, and flammable gas produced from swamps and sewers.
- H2S is the primary gas produced from the microbial breakdown of organic matter in the absence of oxygen.
- This necessitates easy detection of its emission from sewers and swamps