Scientists have developed an economical compact graphene-based sensor for detecting air pollution. Graphene a superb material is again back. The group of scientists from the University of Southampton has collaborated with Japan advanced institute of science and technology (JAIST) to create artificial sense and switch system.

This system can detect small air pollution ingredients at home. This happens in exchange for very low power consumption. This system can automatically find individual CO2 molecules and volatile organic compounds that stick to the volumetric materials in the household surface as well as air.

All these small particles will contain an extreme narrow concentration in ppb (Parts per Billion Levels ) which go undetected which passes through any existing room technology, which is programmed to work at PPM level.
Now this is moved to another project to cure sick building syndrome (SBS) and other similar sicknesses.

Hiroshi Mizuta the team leader, a joint appointee at the University of Southampton and JAIST also his colleagues engineered a sensor which is based on charge transfer mechanism to detect every single CO2 molecule. This is absorbed on suspended Graphene a honeycomb shaped carbon allotrope.

The graphene roll with the electrical resistance signifies proportionally the number of absorbed and desorbed CO2 molecules and is counted as “Quantised” which charges in resistance.
Professor Mizuta explained that “In comparison to conventional environment monitoring tools, the newest research product is small and cost effective. Moreover, the complete system has now shifted to a whole new level from, ppm to ppb.”

The same group has developed a graphene with switch based on the special thin film. They started working to combine these two research works in order to develop an ultra low power environmental sensor system detecting single molecular pollutants. This whole report is published in the journal “Science Advance”.