Neural Implant That Learns With The Brain May Help Paralyzed Patients
21:43 24-06-2008; source: www.sciencedaily.com
Devices known as brain-machine interfaces could someday be used routinely to help paralyzed patients and amputees control prosthetic limbs with just their thoughts. Now researchers have taken the concept a step further, devising a way for computerized devices not only to translate brain signals into movement but also to evolve with the brain as it learns.
Cells Have An Appetite For Micro-doughnuts
18:43 24-06-2008; source: www.sciencedaily.com
Just like humans, liver cells can't resist eating just one or two small doughnuts, say chemists in the Royal Society of Chemistry journal Chemical Communications. Exploiting liver cells' appetite for polystyrene ring "doughnuts", just a few microns across, might give scientists a new way to deliver drugs selectively, potentially eliminating nasty side effects of life-saving treatments such as chemotherapy.
Gene Silencer And Quantum Dots Reduce Protein Production To A Whisper
03:43 24-06-2008; source: www.sciencedaily.com
Fluorescent nanoparticles, called quantum dots, are dramatically better than existing methods for delivering a gene-silencing tool into cells. The quantum-dot chaperones help impede the cell's production of a given protein.
New Process Brings Nanoparticles Into Focus
03:43 24-06-2008; source: www.sciencedaily.com
Scientists can study the biological impacts of engineered nanomaterials on cells within the body with greater resolution than ever because of a procedure developed by researchers at the Department of Energy's Oak Ridge National Laboratory.
Abandoned Farmlands Are Key To Sustainable Bioenergy
21:43 23-06-2008; source: www.sciencedaily.com
Biofuels can be a sustainable part of the world's energy future, especially if bioenergy agriculture is developed on currently abandoned or degraded agricultural lands. Using these lands for energy crops, instead of converting existing croplands or clearing new land, avoids competition with food production and preserves carbon-storing forests needed to mitigate climate change.
Engineers Reveal What Makes Diamonds Slippery At The Nanoscale
21:43 23-06-2008; source: www.sciencedaily.com
Engineers have conducted the first study of diamond friction supported by spectroscopy and determined that this slippery behavior comes from passivation of atomic bonds at the diamond surface that were broken during sliding and not from the diamond turning into its more stable form, graphite.
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