Archive for the ‘From the Wire’ Category

New Microneedle Antimicrobial Techniques May Foster Med-Tech Innovation

Wednesday, May 19th, 2010

[caption id="attachment_14635" align="alignleft" width="350" caption="This image is a scanning electron micrograph showing an array of biodegradable polyethylene glycol-based microneedles with antimicrobial properties."][/caption] From the Wire: Researchers from North Carolina State University have developed two new approaches for incorporating antimicrobial properties into microneedles – vanishingly thin needles that hold great promise for ...

Scientists Prove Viability of Glucose as a Power Source

Tuesday, May 18th, 2010

[caption id="attachment_14584" align="alignleft" width="250" caption="Glucose naturally found in the bloodstream could be used as an energy source for implantable medical devices."][/caption] Researchers in France have announced the development of the first functional glucose biofuel cell. Led by Philippe Cinquin, a team of scientists at Joseph Fourier University confined selected enzymes inside graphite discs ...

Researchers Turn to Implants to Treat Brain Injuries

Thursday, May 13th, 2010

[caption id="attachment_14509" align="alignleft" width="300" caption="A fibre-optic cable, embedded in the brain of a laboratory mouse, transmits bursts of coloured light to genetically engineered brain cells. Image courtesy of Deisseroth Lab, Stanford University."][/caption] From the Wire: Led by Stanford University and Brown University, researchers at four institutions have begun an effort with more ...

US FDA Launches Medical Device and Radiation-Emitting Product Transparency Website

Tuesday, April 20th, 2010

The US Food and Drug Administration (FDA) launched the Center for Devices and Radiological Health (CDRH) Transparency website on 19 April as part of the agency's transparency initiative. The site will provide information about medical device and radiation-emitting product regulatory processes and decisions and summaries of data that provide the ...

Nanoscale Probe Slides Seamlessly into Cell Walls

Monday, April 5th, 2010

[caption id="attachment_13538" align="alignleft" width="300" caption="A 'stealth' probe sits firmly fused into a cell membrane. The membrane is represented by the small blue spheres, with the hydrophobic portion inside shown by squiggly fine blue lines. The silicon part of the probe is black and the chromium bands that bound the thin ...

Engineers Turn Noise into Vision

Friday, April 2nd, 2010

[caption id="attachment_13528" align="alignleft" width="250" caption="Jason Fleischer (right), a Princeton assistant professor of electrical engineering, and graduate student Dmitry Dylov have developed a new method for using nonlinear materials to reveal images of obscured objects. Image courtesy Frank Wojciechowski"][/caption] From the Wire: A new technique for revealing images of hidden objects may ...

Carbon Nanostructures—Elixir or Poison?

Thursday, April 1st, 2010

[caption id="attachment_13454" align="alignleft" width="300" caption="Los Alamos National Laboratory toxicologist Jun Gao works in his laboratory using a protective fume hood"] [/caption] From the Wire: A Los Alamos National Laboratory toxicologist and a multidisciplinary team of researchers have documented potential cellular damage from “fullerenes”—soccer-ball-shaped, cage-like molecules composed of 60 ...

Embedding Cells with Silicon Chips May Soon Be Possible

Thursday, March 18th, 2010

[caption id="attachment_13080" align="alignleft" width="300" caption="The above image shows the steadily increasing number of transistors that could fit on the area of a typical cell over time. Image courtesy of J.A. Plaza, IMB-CNM. "][/caption] Spanish scientists are working to implant silicon microchips into eukaryotic cells without interfering with cell viability. Based at ...

Low-Power Computer Chips Allow Development of Wearable Patient Monitoring Devices

Thursday, March 11th, 2010

[caption id="attachment_12932" align="alignleft" width="368" caption="MIT engineers have designed this wearable ECG monitor that runs on very little power and could replace cumbersome devices now used to monitor heart patients. Image courtesy of Eric Winokur"][/caption] From the Wire: The next wave of the electronics revolution will involve biomedical devices, say electrical engineers ...

Seeing through Opaque Materials

Monday, March 8th, 2010

[caption id="attachment_12876" align="alignleft" width="300" caption="Knowing enough about the way light is scattered through materials would allow physicists to see through opaque substances, such as the sugar cube on the right. In addition, physicists could use information characterizing an opaque material to put it to work as a high quality optical ...

Artificial Bee Silk a Step Closer to Reality

Thursday, March 4th, 2010

[caption id="attachment_12850" align="alignleft" width="182" caption="Honeybee larvae produce silk to reinforce the wax cells in which they pupate and now CSIRO scientists have produced this silk artificially. Image courtesy of CSIRO."][/caption] From the Wire: CSIRO scientist Dr Tara Sutherland and a research team have hand-drawn fine threads of honeybee silk from a ...

Biosensor Enables Human Arm to Be Used as Touch Screen

Wednesday, March 3rd, 2010

From the Wire: Researchers at Carnegie Mellon University and Microsoft have developed an acoustic biosensor that turns an arm into a crude touch screen, writes Kristina Grifantini on the Technology Review blog. An armband, worn around the bicep, detects minute sound waves that travel through skin when it is tapped. The ...