A new method of manufacturing short, single-stranded DNA molecules can solve many of the problems associated with current production methods. The new method, which is described in the scientific periodical Nature Methods, can be of value to both DNA nanotechnology and the development of drugs...
A Basque research consortium has managed to stop the development of colon cancer and its liver metastasis in an experimental model using mice. This breakthrough, which could open new avenues for the future treatment of these pathologies, has been achieved by creating molecules that interfere...
In this week's issue of the prestigious journal Nature Chemical Biology, scientists Carole Linster (University of Luxembourg), Emile Van Schaftingen (Louvain University), and Andrew D. Hanson (University of Florida, Gainesville) review an important, but so far neglected, part of metabolism...
University of Miami scientists have developed a way to switch fluorescent molecules on and off within aqueous environments, by strategically trapping the molecules inside water-soluble particles and controlling them with ultraviolet light. The new system can be used to develop better fluorescent...
There's nothing like a new pair of eyeglasses to bring fine details into sharp relief. For scientists who study the large molecules of life from proteins to DNA, the equivalent of new lenses have come in the form of an advanced method for analyzing data from X-ray crystallography experiments...
By developing software that uses 3-D models of proteins involved in cystic fibrosis, a team of scientists at Duke University has identified several new molecules that may ease the symptoms of the disease. Computer algorithms created by the team predict how well a given molecular structure will...
Scientists from Freie Universität Berlin and the NeuroCure Cluster of Excellence led by biochemist Volker Haucke in collaboration with colleagues from Australia and the Leibniz Institute for Molecular Pharmacology (FMP) in Berlin have developed small molecules that inhibit the internalization...
The Herschel Space Observatory's large telescope and state-of-the-art infrared detectors have provided the first confirmed finding of oxygen molecules in space. The molecules were discovered in the Orion star-forming complex. Individual atoms of oxygen are common in space, particularly around...
A class of compounds that interferes with cell signaling pathways may provide a new approach to cancer treatment, according to a study published online this week in the Proceedings of the National Academy of Sciences (PNAS) Early Edition. The compounds, called PITs (non-phosphoinositide PIP3...
Each time you inhale, you take in about 500 mL of air, each milliliter of which contains 2.5x10^19 molecules. Lincoln inhaled 200 times during his run.
Mycobacterium tuberculosis (Mtb) possesses extraordinary survival ability by masking itself from the host immune system and persisting for decades inside the host. Speaking at the Society for General Microbiology's spring meeting in Edinburgh, Dr Kristine Arnvig provides further insight into how...
The last ancestor we shared with worms, which roamed the seas around 600 million years ago, may already have had a sophisticated brain that released hormones into the blood and was connected to various sensory organs. The evidence comes not from a newly found fossil but from the study of...
if "cold" is when molecules aren't moving a lot, and "warm" is when they...
...ARE moving a lot, why is wind cold? i was browsing around on yahoo answers and came across a question about how humidity can exist if air is below freezing.
the answer included this phrase: "Temperature is the...
Several structurally similar small molecules appear capable of protecting cells from alpha-synuclein toxicity in multiple models of Parkinson's disease, according to Whitehead Institute researchers. Misfolded copies of the alpha-synuclein protein in brain cells are a hallmark of Parkinson's...
classified as? autotrophs
producers
algae
heterotrophs
2. Red blood cells contain a higher concentration of potassium than the surrounding blood plasma does. This higher concentration is maintained by the process of
cyclosis
osmosis
simple diffusion
active transport
3.Organisms are...