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Tag: "materials" at biology news

FDA sees nanotech challenges in every product category it regulates

...l, physical and biological properties of nanoscale materials are often different from their larger counterparts, they potentially lead to different safety issues. The report’s recommendations that FDA provide clear nanotechnology-associated guidance for manufacturers in all areas of agency responsibility are a...

Simulations unravel outer membrane transport mechanism

...ay of proteins involved in the active transport of materials across cell membranes. Their study, which includes a collaborator from the University of Virginia, appears online in the Biophysical Journal and was described in the May 25 edition of Science. Transporting large molecules, such as vitamin B12, ci...

Now, self-healing materials can mimic human skin, healing again and again

...an skin by healing itself time after time. The new materials rely upon embedded, three-dimensional microvascula...lood flow to promote healing, a crack in these new materials will trigger the flow of healing agent to repair the damage,” said Nancy Sottos, a Willett Professor...

Plastic that grows on trees

...hlorides belong to a class of ionic-liquid-soluble materials called halides, which “in general work well for co.... White, IIC director and Robert A. Welch chair in materials chemistry at the University of Texas. “This work opens the way for fundamental catalysis science in ...

Researchers develop buckyballs to fight allergy

...ause it points to the possibility that these novel materials can one day lead to new therapies,” said Chris Kepley, Ph.D., M.B.A., assistant professor in the Department of Internal Medicine, Division of Rheumatology, Allergy and Immunology at the VCU School of Medicine. “Researchers in many fields are aware...

Genome of Clostridium botulinum reveals the background to world's deadliest toxin

...dormant spore or as a scavenger of decaying animal materials in the soil, and doesn’t interact with human or other large animal hosts for prolonged periods of time. Occasionally it gets into a living animal, via contaminated food or open wounds, leading to infant botulism or wound botulism, both of which ar...

New designer lipid-like peptide with lipid nanostructures for drug delivery systems

...er-hating, which represent a new class of designer materials using common amino acids, the same basic molecules from meat, beans and fruits. These lipid-like peptides have excellent potential to solubilize membrane proteins and enzymes, and - as now demonstrated - can also be utilized to stabilize different s...

Fuel from fiber -- Pretreatment can put corn stalks, trees in your car's tank

...e University professor of chemical engineering and materials science, making fuels from poplar trees and corn stalks is becoming more efficient and cost-effective. Dale is internationally known for his 30 years of research on making ethanol from plant biomass ?the stems, leaves, stalks and trunks of plants ...

Alien plants attack using 'resource conservation' as weapon, researchers say

...ive best in regions where there is an abundance of materials for growth, such as water, nutrients and light. Biologists have long assumed that alien species pose less of a threat in resource-poor environments because they are less able to compete with indigenous plants, which have adapted to their habitats ove...

Magnetic computer sensors may help study biomolecules

... Spin valves are made by stacking thin layers of materials with different magnetic properties. Their net magnetization can be switched on and off by applying an external magnetic field of sufficient strength to align the electron "spins" in the magnetic layers in the same (on) or opposite (off) directions. N...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...rg says, the simple step of using quieter pavement materials could cut road noise in half in the main entrance ...he thicknesses of an instrument wall and the exact materials of which the wall is made. Many acousticians had assumed that the main important factor was the pro...

Iowa State scientists demonstrate first use of nanotechnology to enter plant cells

...team of Iowa State University plant scientists and materials chemists have successfully used nanotechnology to penetrate plant cell walls and simultaneously deliver a gene and a chemical that triggers its expression with controlled precision. Their breakthrough brings nanotechnology to plant biology and agricu...

Intelligent materials to regenerate bone tissue

...d to mitigate the damage, depend decisively on the materials used. The European Nanobiocom project, led by INASMET-Tecnalia with the help of others, is working on the regeneration and repair of bone tissue. Seven other bodies, leaders in innovation within this specialism, are also taking part in the project. ...

Genome sequencing reveals key to viable ethanol production

... microorganism that produces valuable ethanol from materials like grass and cornstalks. Waste products such as...like corn. Conversely, deriving ethanol from plant materials such as the corn stalks and wood chips is challenging because the plants?cellulose is a very tough s...

Biodiesel study targets cleaner air, cleaner engines

...rn will increase market opportunities for recycled materials and oils and give farmers the chance to grow some of their own fuel. Recent government announcements supporting renewable fuels will help advance the demonstration and use of biodiesel on farms. ...

Using nanomagnets to enhance medical imaging

...addition, they might be modified to act as "smart" materials whose contrast could be turned on only when bonded...n the body and other studies have found that these materials are non-toxic at the concentrations used in MRI. NIST works with Florida State University to make...

Scientists identify molecular cause for one form of deafness

... cause deafness," said Gerard Wong, a professor of materials science and engineering, of physics, and of bioengineering at the University of Illinois at Urbana-Champaign. "The interior structure of the bundles changes from a rigid, hexagonal array of uniformly twisted filaments, to a liquid crystalline arran...

Nanotextured implant materials: blending in, not fighting back

...ials. Two recent experiments have focused on the materials used in stents ?those springy little cylinders tha... could use physical structure to allow the foreign materials to blend in better. "What we're trying to do is fundamentally different," says Webster. "We're tryin...

ConocoPhillips establishes $22.5M biofuels research program at Iowa State

.... Biorenewable fuels are produced from organic materials and help reduce pollution and greenhouse gas emissions while diversifying the energy supply. Conventional biorenewable fuels include ethanol from corn starch and biodiesel from soybean oil. Advanced biofuels are expected to be made from fibrous bioma...

McBride shows DNA detective work with paper-eating bacteria that 'glide'

...of Energy (DOE) would like to find other renewable materials that will be cost-effective alternatives, such as paper pulp, sawdust, straw and grain hulls. A UWM professor recently helped DOE do just that by analyzing the DNA of a bacterium that can break down cellulose, the major structural component of plant...

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