Ultraviolet light from space was damaging to many prebiotic molecules in Earth’s early history, but some were photostable and survived the assault. Recent research shows that one of these building blocks of DNA and RNA, adenine, has an unexpectedly variable range of ionization energies along its reaction pathways.
With five times the tensile strength of steel, spider thread is a fascinating material. Yet, attempts to produce the material on an industrial scale have failed. Researchers in Germany have unlocked the protein structure of this thread, a finding that could open the door to artificial spider silk.
Both bone and wood are solid, living elements with an internal structure that is porous. By transforming red oakwood into a charcoal substance that emulates bone, scientists in Europe may have discovered a weight-bearing implant that will help regenerate bone.
A researcher at the University of the Basque Country has developed and validated a polymer support capable of inducing neuronal differentiation in vitro. Created with a photolithographic technique, the support structure is biocompatible and has been tested on animal models.
Coffee-based sunscreen may not be so crazy after all. Several years ago, researchers discovered that caffeine has a positive effect against certain types of skin cancers at the molecular level. A new study from Rutgers University strengthens this theory.
New findings, resulting from a decade of research, show striking recurring patterns of marine virioplankton dynamics in the open sea, which have implications regarding our understanding of cycling of nutrients in the world's oceans.
GE Healthcare and AB SCIEX announced a collaboration agreement to provide GE Healthcare's Smart Asset Management Services (SAMS) customers throughout North America with the option for full on-site service and maintenance support of AB SCIEX mass spectrometry systems.
To successfully fight infection, the right treatment must be started quickly. But sometimes physicians have difficulty differentiating between a viral or a bacterial affliction. A simple blood test has been developed that should quickly answer this question.
New research from the University of California, Merced shows how the precursors to RNA could have formed on Earth before any life existed. The breakthrough was answering the question of how necessary RNA precursors can be formed by simple amino acids.
In 2006, the Stardust probe returned a vial of dust from Wild 2, a comet. Analysis of that material shows that certain nucleobases, the building blocks of our genetic material, reach the Earth on meteorites in greater diversity and quantity than previously thought.
Despite the discovery in recent years that people have at least 1,000 different genes that each have a small effect on people’s IQ, scientists still haven’t found the specific ones that determine intelligence. But they have uncovered some interesting patterns.
Unlike many vaccines, the shot for influenza needs yearly updating. Howard Hughes Medical Institute scientists have discovered a human antibody that recognizes many different flu strains and could be the basis for a longer-lasting vaccine.
By combining light-sheet microscopy and single molecule spectroscopy, researchers in Germany have built a new microscope can record the fluorescence of every pixel within view, and take snapshots at intervals of less than one millisecond.
Choline, a nutrient found in foods such as egg yolks, liver and soybeans, does not appear to be high on anyone’s list of eating priorities, say University of Alberta researchers. But it’s crucial to a number of biological functions, and the liver doesn’t naturally produce enough to deliver the full benefits.
A team of scientists at Kyoto University has reported producing viable sperm using the stem cells of mice in an experiment that researchers hope could one day lead to treating infertile men.
Improvements in protein quantification and identification have allowed a research team in Japan to combine Eksigent’s chip-based nanoLC technology with AB SCIEX’s mass spectrometry technology. The breakthrough has helped researchers identify the type and quantity of target proteins in a patient’s body, assisting with drug development.
Researchers in Poland have synthesized a new type of polymer that effectively captures nicotine molecules and their analogues in its molecular pincers. The design is now the core of a polymer nicotine trap which could also be used to deliver a slow, controlled release of nicotine in the body.
A single compound with dual function?the ability to deliver a diagnostic and therapeutic agent?may one day be used to enhance the diagnosis, imaging and treatment of brain tumors. A nanoparticle called a metallofullerine served as the basis for this research at Virginia Commonwealth University and Virginia Tech.
By coating gold nanoparticles with antibodies that bind to specific strains of the flu virus and then measuring how the particles scatter laser light, a new technology from the University of Georgia can detect influenza in minutes at a cost of only a fraction of a penny per exam.
Akin to the litmus paper used in chemistry labs around the world to detect the pH of a liquid, a new device developed by Harvard University investigators changes color when it encounters a liquid with a particular surface tension. Capitalizing on the 3D capabilities of the porous material called inverse opal, the chip also has secretive double function.
Ischemia, in which tissue deprived of oxygen, is a serious health condition that can lead to damaged organs or amputation. A new artificial structure has been built, however, that, like the natural protein it mimics, can trigger a cascade of complex events that promote the growth of new blood vessels.
A biomedical engineering professor at Columbia University has spent that last four years testing his mobile microfluidic chip, or mChip, on hundreds of patients. The inexpensive chip requires a tiny finger prick of blood, and in less than 15 minutes delivers quantitative assays.
It may take more than willpower to stick to a diet. A researcher at the Albert Einstein College of Medicine has discovered what happens to the brain when the body is hungry, and it involves a bizarre process of autophagy, or self-eating.
A new optical coherence tomography technology developed by a Massachusetts Institute of Technology team has made it possible for users of endoscopy to see below the surface of the colon or esophagus to image microscopic pre-cancerous changes. Traditional screening methods were unable to offer this information.
Using a so-called Langendorff heart?an isolated rodent heart flushed with a nutrient solution in place of blood?scientists from Germany were for the first time able to show that nanoparticles have a clearly measurable effect on the heart.