Bio & Medicine news
Noxious nanotech: Water-borne nanomaterials promote multidrug-resistance gene transfer
(PhysOrg.com) -- The arms race between effective antibiotic prophylaxis and closely related strains or species of bacteria is continually escalating. Bacteria can quickly develop genetic resistance to a range ...
Nanotechnology / Bio & Medicine
Mar 30, 2012 |
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Modeling the miniscule: High-resolution design of nanoscale biomolecules
(PhysOrg.com) -- A key element of both biotechnology and nanotechnology is – perhaps unsurprisingly – computational modeling. Frequently, in silico nanostructure design and simulation precedes actual ...
Nanotechnology / Bio & Medicine
Mar 12, 2012 |
4.5 / 5 (4) |
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DNA as invisible ink can reversibly hide patterns
(PhysOrg.com) -- While most people know of DNA as the building blocks of life, these large molecules also have potential applications in areas such as biosensing, nanoparticle assembly, and building supramolecular ...
Nanotechnology / Bio & Medicine
Jan 23, 2012 |
4.3 / 5 (8) |
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Biomolecular computer can autonomously sense multiple signs of disease
(PhysOrg.com) -- In the future, nano-sized computers implanted in the human body could autonomously scan for disease indicators, diagnose diseases, and control the release of the appropriate drugs. Although ...
Nanotechnology / Bio & Medicine
Jul 06, 2011 |
3.6 / 5 (8) |
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Nanostructure of 5,000-year-old mummy skin reveals insight into mummification process
(PhysOrg.com) -- Using cutting-edge microscopy techniques, researchers have gained insight into how human mummies can be extremely well-preserved for thousands of years. A team of scientists from Germany and ...
Nanotechnology / Bio & Medicine
Apr 20, 2010 |
4.6 / 5 (16) |
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Scientists Build Nanostructures out of Single DNA Strands
(PhysOrg.com) -- With its unique double-helical structure, DNA has the ability to be used as a programmable building material to construct designer nanoscale architectures. Complex DNA architectures could ...
Nanotechnology / Bio & Medicine
Sep 08, 2009 |
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Carbon Nanotube-Coated Electrodes Improve Brain Readouts
A research group has significantly improved the quality of brain-function measurements by coating metal neural electrodes with carbon nanotubes. Their work could potentially allow scientists to learn more ...
Nanotechnology / Bio & Medicine
Aug 12, 2008 |
4.3 / 5 (23) |
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Carbon Nanotubes Compromise the Functions of Certain Protozoa, Study Shows
A new study by researchers from the University of Waterloo in Ontario, Canada, hints that carbon nanotubes may be toxic to microorganisms. When cultures of a certain key protozoan, a single-cell organism, ...
Nanotechnology / Bio & Medicine
Jun 18, 2008 |
4.7 / 5 (36) |
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Nanobacteria – Are They Alive?
Tiny particles called nanobacteria have intrigued researchers in many ways since their discovery 20 years ago, but perhaps the most controversial question they pose is whether or not they are alive.
Nanotechnology / Bio & Medicine
Apr 23, 2008 |
4.6 / 5 (94) |
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First Direct Images of Carbon Nanotubes Entering Cells
For the first time, scientists have directly imaged carbon nanotubes entering and migrating within human cells, determining as a result that whether the nanotubes cause cell death depends on the dose and exposure ...
Nanotechnology / Bio & Medicine
Nov 15, 2007 |
4.5 / 5 (87) |
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Molecules autonomously propelled by polymerizing DNA strands
Scientists from the California Institute of Technology have fabricated a motor that runs autonomously, and is powered only by the free energy of DNA hybridization. The molecular motor was inspired by bacterial ...
Nanotechnology / Bio & Medicine
Sep 06, 2007 |
4.4 / 5 (41) |
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Carbon nanotube injectors probe living cells without damage
In order to investigate the processes that go on inside a single human cell—or even specific subcellular compartments—researchers need a device that is small and controlled enough to pass through ...
Nanotechnology / Bio & Medicine
Jun 20, 2007 |
4.6 / 5 (56) |
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Carbon-Nanotube Toxicity Test Tricks Scientists
Recent research has revealed that a standard cell-viability test may be causing carbon-nanotubes to “fake” toxicity. This work may explain why some studies have concluded that carbon nanotubes – which are being studied for ...
Nanotechnology / Bio & Medicine
Sep 05, 2006 |
4.2 / 5 (48) |
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Nanowire arrays can detect signals along individual neurons
Opening a whole new interface between nanotechnology and neuroscience, scientists at Harvard University have used slender silicon nanowires to detect, stimulate, and inhibit nerve signals along the axons and dendrites of ...
Nanotechnology / Bio & Medicine
Aug 24, 2006 |
4.4 / 5 (51) |
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Stretching DNA Yields Surprise
Most of us are familiar with the winding staircase image of DNA, the repository of a biological cell's genetic information. But few of us realize just how tightly that famous double helix is wound.
Nanotechnology / Bio & Medicine
Aug 08, 2006 |
4.2 / 5 (35) |
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