Sensor manufacturing helps detect nanoparticles in the air

The team of scientists led by Professor Robert Dorey, director of the Cranfield University's Center for Nanotechnology and Micro Systems, is developing a new sensor that helps detect nanoparticles in the air.

"We are trying to build a sensor in conjunction with a coating that can react when nanomaterials come into contact with it and count how many nanoparticles are in a certain contact area , " she said . Professor Robert Dorey said.

The precise components of the external coating and how the sensor will be corrected is the subject of patent applications, but Dorey has said that the sensor versions are for fixed and portable offices. dynamics will be produced soon.

Dorey added that manufacturers work with nanomaterials and environmental groups will use these sensors.

Nanomaterials used in products include: sunscreen lotion, synthetic materials, wind turbine components, cars and sports equipment.

"What's interesting is how many nanoparticles have been used to make things in our surroundings , " said Dr Sophie Rocks, a lecturer who works at Nano's Department of Toxicology. Cranfield United Kingdom.

"Nanoparticles can be present anywhere. They can travel between human cells, penetrate cells, and even pass through blood vessels leading to the brain." , Rocks explained.

Currently, the specific mechanism that affects the health of nanoparticles is unclear . This is largely because currently, there is no way to measure the number of nanoparticles in the human body, or to argue that it is difficult to distinguish between natural nanoparticles and artificial nanoparticles.

However, one study suggests that carbon nanotubes may exhibit similar behavior as asbestos fibers and will cause pneumonia if inhaled in large quantities.

The study also suggested that silver nanoparticles could pass through the intestinal wall and interfere with the absorption of nutrients into the body.

Since birth, humans have been exposed to many of these nanoparticles. However, we are still producing more and more of the number of nanoparticles, according to Rocks.

"Experts estimate that it will produce about 1,019 tons of nanoparticles every year until 2015 based on a 2004 report by the Royal Academy of Engineering," Rocks added. .

Cranfield University, currently offering a doctoral fellowship to support the development of new sensors for partners in the measurement industry such as Casella, which has experience in measuring the concentration of dust in the gas book.

The new sensor is expected to be in the first prototype phase of operation within 3 years.