DNA has the nasty habit of getting tangled and forming knots. Scientists study these knots to understand their function and learn how to disentangle them. Researchers have now devised and tested a method based on the application of electric fields and optical tweezers.
Researchers have created a vaccine for dust-mite allergies. In lab tests and animal trials, the nano-sized vaccine package was readily absorbed by immune cells and dramatically lowered allergic responses.
Polarization charges in ferroelectric materials are screened by equal amounts of surface charges with opposite polarity under ambient conditions. Researchers have shown that scraping, collecting, and quantifying surface screen charges reveals the underlying polarization domain structure at high speed, a technique dubbed charge gradient microscopy (CGM).
Scientists have devised a breakthrough laser that uses a single artificial atom to generate and emit particles of light. The laser may play a crucial role in the development of quantum computers, which are predicted to eventually outperform today's most powerful supercomputers.
More than 80 percent of all drug candidates in the pharma R+D suffer from poor solubility and are therefore rejected early in the drug discovery process. Now Uppsala University researchers show that the new material Upsalite, has great potential for development of new formulations of these rejected drugs.
The models simulate or mimic complex biological processes, such as evolution, self-replication and immune system behaviors, and the formation of prions, protein particles that may cause brain diseases. The models can be used to help scientists develop artificial self-assembling systems in laboratories and will make valuable contributions to the theoretical understanding of biological systems.
Mathew M. Maye, associate professor of chemistry, has been awarded a three-year, $360,000 grant from the National Science Foundation (NSF). The award supports his ongoing work with metal stainless alloy nanostructures, the results of which may impact gas storage, heterogeneous catalysis, and rechargeable lithium-ion batteries.
Electromagnetic radiation and mechanical vibrations of matter interact and exchange energy at the nanoscale. The experimental basis to study such interactions with precision is still being established. Researchers have now designed a silicon 1D Optomechanical crystal built up so that it allows to localize in a stable way both phonons and photons.