Emissions from cars have to be reduced further in order to meet today’s environmental demands. A new and robust exhaust sensor developed by researchers at Linköping University in Sweden has proven to meter the consistency of exhaust gases extremely well and is now on its way to the market.
It’s a tiny electronic component, no larger than the head of a pin. It has been tested both at LiU and in cars at its collaborating auto-makers, Volvo Cars in Gothenburg, Sweden, and Ford Motor Company in Detroit, Michigan. The results are reported in a dissertation by Helena Wingbrant, a doctoral student at the S-SENCE center of excellence.
The component is used to meter the amount of air in the fuel mixture, or the content of ammonia in diesel exhaust. The former is important to be able to reduce emissions from gasoline cars during cold starts, the latter to regulate the exhaust purification system that is under development for diesel cars. The sensor has proven to perform these tasks extremely well-so well that the Linköping company AppliedSensor now wants to take it to market.
Åke Hjelm | alfa
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Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
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