Researchers show how to assemble building blocks for nanotechnology
...eful in device fabrication. For example, sheets of spheres with tunable structures (an ordered arrangement of points that can be changed) may serve as novel materials with optical and mechanical properties. The chains, rings and twisted and staircase assemblies could serve as basic structural units to furthe...Need sex? It's probably something about stress
...lvox, the lab rat of the algal world. Tiny spheres of gel with individual alga cells spread over the surface of the sphere like polka dots, Volvox colonies can be found in temporary ponds that fill with water in the spring and slowly dry out as summer progresses. In addition to the outer cell...High profile publications in biology and biochemistry on rise at UH
...strengthened and expanded to the point where their spheres begin to overlap....Findings of novel nanoproperties in selenium produced by bacteria open new area of exploration
..."Surprisingly, we found different bacteria produce spheres with different arrangements of the selenium atoms and hence different optical properties," says Ajayan. "Remarkably, these conditions cannot be achieved by current methods of chemical synthesis." The research could lead to the production of nanosph...Bacteria discoveries could resemble Mars, other planets
...copy that revealed tiny (two- to three-micrometer) spheres that looked like microbes in those same parts of the rock that contained the DNA and protein building blocks. There also was a significant difference in the levels of carbon, phosphorous, chloride and magnesium compared to unoccupied neighboring regi...Diet researcher asks how now lemur chow?
...eterinary fed lemurs small amounts of polyethylene spheres infused with barium, and took periodic X-rays of their guts to follow the course of their digestion. The results of all this "basic nuts-and-bolts nutrition information" was not only the awarding of a Ph.D. to Campbell this spring. The center is als...European experiment hardware reaches the International Space Station
...iples of mechanics. It records the motion of small spheres or liquids in a sealed container at the end of a spring-loaded pendulum. Video-2 As part of this experiment equipment has been uploaded to the ISS to demonstrate Newton's three laws of motion under microgravity conditions. This experiment will be ...Brain cells seen recycling rapidly to speed communications
The tiny spheres inside brain cells that ferry chemical messengers into the synapse make their rounds much more expeditiously than once assumed, National Institute of Mental Health (NIMH) - funded researchers have discovered. They used a dye to track the behavior of ...Hollow spheres make solid vaccine to protect fish
...al coat. The virus-like particles are thus hollow spheres that resemble the scaffolding of the virus but it cannot reproduce and cause disease. With strong growth in recent years, salmon aquaculture has surfaced as a $4.9 billion dollar industry that produces 1.6 million metric tons of fish globally, re...Microgel polymer beads may provide general vehicle for vaccines, gene therapy
...ms globules in water. The polymer chemicals in the spheres solidify into beads with the protein embedded. His technique can produce beads of varying sizes geared to a specific use. It can produce beads - about half a micron in diameter - that are just the right size for the immune system's macrophages. Or, t...Atomic force microscope powerful new tool for measurement of particle attraction
... and surface charge similar to bacteria. The micro spheres are attached to a cantilever developed for just su...xperimentally derived sticking efficiency of micro spheres using atomic force microscopy: Toward a better understanding of particle transport in porous media (...Targeted radiation to liver tumors spares tissue, improves quality of life
...sor of Surgery and chair of the department. "These spheres emit radiation for a short distance, less than a c... site compared to normal liver is favorable." The spheres are implanted using a catheter placed in the artery feeding the liver and travel via the blood strea...Tiny, magnetic spheres may help overcome gene therapy hurdle
...e polystyrene, a type of plastic. In order for the spheres to be used in actual treatment, they would have to be made of biodegradable materials, said Chris Batich, a UF professor of materials science and engineering and biomedical engineering and member of the team. Although he said he has created such biod...Physics tip sheet #3 March 6, 2002
...olecules in solvents by putting a chain of plastic spheres in a bath of randomly moving balls that are often used as toys for pets. The random motion of the balls simulates the thermal jiggling of molecules known as Brownian motion. With a video camera and simple image recognition, the folding and unfolding ...High hit rate in drug development
...he dashed lines indicate the theoretical cuts, the spheres symbolize the support on which the synthesis is carried out. It can be viewed at http://www.mpg.de/news02/news0204_bild2.gif Picture: MPI of molecular Physiology/Schulte/Herter The "domain concept" regards a natural product class as a starting poi...Engineers develop odour eaters for pulp mills
...variety of materials such as wood chips or plastic spheres - is placed at the exit gas stream at the end of the manufacturing process before the sulphur compounds are released into the air. The sulphur compounds are food sources for the bacteria and, as the bacteria eat them, they also eat the smell. In a pa...Story tips from the Department of Energy's Oak Ridge National Laboratory, January 2002
...ns using a micro-droplet technique that results in spheres of material that retain their individual shapes yet whose surfaces actually merge. [Contact: Mike Barnes] BIOLOGY Collision course Carbon nanofiber-based biosensors able to work on the same scale as nature - the nanoscale - could lead to giant le...Magnetic tag lets scientists track stem cells in living rat
Using tiny rust-containing spheres to tag cells, scientists from Johns Hopkins and el...l types will take in dendrimers just by mixing the spheres and the cells together, without affecting the cells' behavior. Bulte's research with magnetic dendr...... far, most of the bulk preparatory methods are for spheres and rods, added Mirkin. (A nanometer is one-billio...ed the mixture with room light for three days, the spheres were converted into triangular prisms a mere 15 nanometers thick. The light induced the nanospheres ...