Univ. of California, Los Angeles researchers have developed a lens-free microscope that can be used to detect the presence of cancer or other cell-level abnormalities with the same accuracy as larger and more expensive optical microscopes. The invention could lead to less expensive and more portable technology for performing common examinations of tissue, blood and other biomedical specimens.
Scientists have used advanced microscopy to carve out nanoscale designs on the surface of a new class of ionic polymer materials for the first time. The study provides new evidence that atomic force microscopy, or AFM, could be used to precisely fabricate materials needed for increasingly smaller devices.
More than 90% of cancer-related deaths are caused by the spread of cancer cells from their primary tumor site to other areas of the body. A new study has identified how one important gene helps cancer cells break free from the primary tumor.
Mistletoe hanging in doorways announces that the holidays are just around the corner. For some people, however, the symbolic plant might one day represent more than a kiss at Christmas time: It may mean better liver health. Researchers have found that a compound produced by a particular variety of the plant can help fight obesity-related liver disease in mice.
A new study is helping to answer a longstanding question that has recently moved to the forefront of Earth science: Did our planet make its own water through geologic processes, or did water come to us via icy comets from the far reaches of the solar system? The answer is likely both.
Newly published research provides the first demonstration of how a genetic mutation associated with a common form of albinism leads to the lack of melanin pigments that characterizes the condition. About 1 in 40,000 people worldwide have type 2 oculocutaneous albinism, which has symptoms of unusually light hair and skin coloration, vision problems and reduced protection from sunlight-related skin or eye cancers.
A Yale Univ. laboratory has crafted the first synthetic molecules that have both the targeting and response functions of antibodies. The new molecules attach themselves simultaneously to disease cells and disease-fighting cells. The result is a highly targeted immune response, similar to the action of natural human antibodies.
NASA's Mars rover, Curiosity, has detected spikes of methane in the planet's atmosphere. That suggests something is producing or venting the scientifically tantalizing gas, but no one knows what. Most of Earth's atmospheric methane comes from animal and plant life, and the environment itself. So the Martian methane raises the question of past or present microbial life.
Rice Univ. scientists have detected at least three instances of cross-species mating that likely influenced the evolutionary paths of “old world” mice, two in recent times and one in the distant past. The researchers think these instances of introgressive hybridization are only the first of many needles waiting to be found in a very large genetic haystack.
Nearly 2,000 planets beyond our solar system have been identified to date. Whether any of these exoplanets are hospitable to life depends on a number of criteria. Among these, scientists have thought, is a planet’s obliquity—the angle of its axis relative to its orbit around a star.
An analysis of the ongoing Ebola outbreak reveals that transmission of the virus occurs in social clusters, a finding that has ramifications for case reporting and the public health. Prior studies of Ebola transmission were based on models that assumed the spread of infection occurred between random pairs of individuals.
Researchers at NYU Langone Medical Center have developed new technology that can assess the location and impact of a brain injury merely by tracking the eye movements of patients as they watch music videos for less than four minutes, according to a study published online in the Journal of Neurosurgery.
Lawrence Livermore National Laboratory researchers in conjunction with collaborators at Univ. of California, Los Angeles have found that some cells build intracellular compartments that allow the cell to store metals and maintain equilibrium. Nearly 40% of all proteins require metal ions such as zinc, copper, manganese or iron for activity.
Massachusetts Institute of Technology researchers have discovered a new mathematical relationship—between material thickness, temperature and electrical resistance—that appears to hold in all superconductors. The result could shed light on the nature of superconductivity and could also lead to better-engineered superconducting circuits for applications like quantum computing and ultra-low-power computing.
In one of the most comprehensive laboratory studies of its kind, Rice Univ. scientists traced the uptake and accumulation of quantum dot nanoparticles from water to plant roots, plant leaves and leaf-eating caterpillars. The study found that nanoparticle accumulation in both plants and animals varied significantly depending upon the type of surface coating applied to the particles.