Facts for Prelims (FFP)
Source: DST
Context: Researchers developed a low-cost, non-invasive sensor for detecting formaldehyde adulteration in fish at room temperature.
- The sensor, made of tin oxide-reduced graphene oxide composite, overcomes the limitations of existing formalin sensors, which are either expensive or invasive.
- The graphene oxide’s low electrical conductivity was addressed by creating the tin oxide-reduced graphene oxide composite.
- The sensor demonstrated effective detection of formaldehyde vapor in adulterated fish samples, showing promise for addressing food adulteration issues.
About Formaldehyde
It is a colourless, flammable gas with a strong odour. It is classified as a human carcinogen and is linked to long-term adverse health effects and cancer.
Formaldehyde is used in many industries, including:
Glues and resins, Dyes, Textiles, Disinfectants, Building materials, Automobile parts, Embalming, Laboratories.
