Dutch technologists have carried out research into a more environmentally friendly car tyre. The scarcely mixable substances silica and rubber were mixed in a ratio that produced a tyre with a low rolling resistance and therefore a lower fuel use for the vehicle to which it will be fitted.
Louis Reuvekamp from the University of Twente mixed silica and rubber under the influence of organosilane. Tyre manufacturers normally use carbon black instead of silica to strengthen the rubber of car tyres. The organosilane used by the researchers acted as a coupling agent. It binds to the surface of silica and rubber, thus linking together two substances which can scarcely be coupled otherwise.
The ideal coupling temperature was determined experimentally. A temperature of at least 130 degrees Celsius is needed for the coupling agent to react with silica. The reaction temperature must not rise above 150 degrees Celsius, as at this temperature the rubber vulcanises and becomes too hard for further processing.
Nalinie Moerlie | alfa
Clean without scrubbing and using chemicals
28.05.2020 | Technische Universität Dresden
Decontaminating pesticide-polluted water using engineered nanomaterial and sunlight
16.01.2020 | Institut national de la recherche scientifique - INRS
In living cells, enzymes drive biochemical metabolic processes enabling reactions to take place efficiently. It is this very ability which allows them to be used as catalysts in biotechnology, for example to create chemical products such as pharmaceutics. Researchers now identified an enzyme that, when illuminated with blue light, becomes catalytically active and initiates a reaction that was previously unknown in enzymatics. The study was published in "Nature Communications".
Enzymes: they are the central drivers for biochemical metabolic processes in every living cell, enabling reactions to take place efficiently. It is this very...
Early detection of tumors is extremely important in treating cancer. A new technique developed by researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from normal tissue. The work is published May 25 in the journal Nature Nanotechnology.
researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from...
Microelectronics as a key technology enables numerous innovations in the field of intelligent medical technology. The Fraunhofer Institute for Biomedical Engineering IBMT coordinates the BMBF cooperative project "I-call" realizing the first electronic system for ultrasound-based, safe and interference-resistant data transmission between implants in the human body.
When microelectronic systems are used for medical applications, they have to meet high requirements in terms of biocompatibility, reliability, energy...
Thomas Heine, Professor of Theoretical Chemistry at TU Dresden, together with his team, first predicted a topological 2D polymer in 2019. Only one year later, an international team led by Italian researchers was able to synthesize these materials and experimentally prove their topological properties. For the renowned journal Nature Materials, this was the occasion to invite Thomas Heine to a News and Views article, which was published this week. Under the title "Making 2D Topological Polymers a reality" Prof. Heine describes how his theory became a reality.
Ultrathin materials are extremely interesting as building blocks for next generation nano electronic devices, as it is much easier to make circuits and other...
Scientists took a leukocyte as the blueprint and developed a microrobot that has the size, shape and moving capabilities of a white blood cell. Simulating a blood vessel in a laboratory setting, they succeeded in magnetically navigating the ball-shaped microroller through this dynamic and dense environment. The drug-delivery vehicle withstood the simulated blood flow, pushing the developments in targeted drug delivery a step further: inside the body, there is no better access route to all tissues and organs than the circulatory system. A robot that could actually travel through this finely woven web would revolutionize the minimally-invasive treatment of illnesses.
A team of scientists from the Max Planck Institute for Intelligent Systems (MPI-IS) in Stuttgart invented a tiny microrobot that resembles a white blood cell...
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28.05.2020 | Power and Electrical Engineering