Bio & Medicine news

Bio-inspired assembly of nanoparticle building blocks

Nov 27, 2006 | 4.5 / 5 (644) | 0

Chemists at Rice University have discovered how to assemble gold and silver nanoparticle building blocks into larger structures based on a novel method that harkens back to one of nature's oldest known chemical ...

Nanobacteria – Are They Alive?

Nanotechnology / Bio & Medicine

Apr 23, 2008 | 4.6 / 5 (94) | 9

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.

Breakthrough: Scientists used nanotubes to send signals to nerve cells

Nanotechnology / Bio & Medicine

May 08, 2006 | 4.1 / 5 (96) | 0

Texas scientists have added one more trick to the amazing repertoire of carbon nanotubes -- the ability to carry electrical signals to nerve cells.

First Direct Images of Carbon Nanotubes Entering Cells

Nanotechnology / Bio & Medicine

Nov 15, 2007 | 4.5 / 5 (86) | 14

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 ...

Team develops DNA switch to interface living organisms with computers

Nanotechnology / Bio & Medicine

Oct 25, 2006 | 4.3 / 5 (76) | 0

Researchers at the University of Portsmouth, UK, have developed an electronic switch based on DNA - a world-first bio-nanotechnology breakthrough that provides the foundation for the interface between living organisms and ...

Carbon nanotube injectors probe living cells without damage

Nanotechnology / Bio & Medicine

Jun 20, 2007 | 4.6 / 5 (56) | 0

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 ...

New material stops bleeding in seconds

Nanotechnology / Bio & Medicine

Oct 10, 2006 | 4.4 / 5 (57) | 0

MIT and Hong Kong University researchers have shown that some simple biodegradable liquids can stop bleeding in wounded rodents within seconds, a development that could significantly impact medicine.

Nanometer-Sized Cargo Ships Illustration

Researchers develop nano-sized 'cargo ships' to target and destroy tumors

Nanotechnology / Bio & Medicine

Sep 12, 2008 | 4.9 / 5 (50) | 0

Scientists have developed nanometer-sized 'cargo ships' that can sail throughout the body via the bloodstream without immediate detection from the body's immune radar system and ferry their cargo of anti-cancer ...

UCLA researchers design nanomachine that kills cancer cells

Nanotechnology / Bio & Medicine

Apr 01, 2008 | 4.5 / 5 (53) | 1

Researchers from the Nano Machine Center at the California NanoSystems Institute at UCLA have developed a novel type of nanomachine that can capture and store anticancer drugs inside tiny pores and release them into cancer ...

Nanowire arrays can detect signals along individual neurons

Nanotechnology / Bio & Medicine

Aug 24, 2006 | 4.4 / 5 (50) | 0

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 ...

Scientists on the way to sifting out a cure for HIV

Nanotechnology / Bio & Medicine

Feb 15, 2007 | 4.5 / 5 (45) | 0

HIV may one day be able to be filtered from human blood saving the lives of millions of people, thanks to a world-first nano-membrane innovation by Queensland University of Technology scientists.

Carbon-Nanotube Toxicity Test Tricks Scientists

Nanotechnology / Bio & Medicine

Sep 05, 2006 | 4.2 / 5 (48) | 0

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 ...

When particles are so small that they seep right through skin

Nanotechnology / Bio & Medicine

Sep 30, 2008 | 4 / 5 (47) | 2

Scientists are finding that particles that are barely there – tiny objects known as nanoparticles that have found a home in electronics, food containers, sunscreens, and a variety of applications – can breech our most personal ...

Controlling the Movement of Water Through Nanotube Membranes

Nanotechnology / Bio & Medicine

Feb 13, 2007 | 4.4 / 5 (42) | 0

By fusing wet and dry nanotechnologies, researchers at Rensselaer Polytechnic Institute have found a way to control the flow of water through carbon nanotube membranes with an unprecedented level of precision.

Models of Eel Cells Suggest Electrifying Possibilities

Nanotechnology / Bio & Medicine

Oct 02, 2008 | 4.7 / 5 (39) | 2

(PhysOrg.com) -- Engineers long have known that great ideas can be lifted from Mother Nature, but a new paper by researchers at Yale University and the National Institute of Standards and Technology takes ...