Featured Research

from universities, journals, and other organizations

Tiny gold probes give scientists a sense of how disease develops

Date:
April 12, 2010
Source:
University of Edinburgh
Summary:
Tiny chemical sensors implanted into patients could help diagnose disease and track its progress, following a development by scientists.

Tiny chemical sensors implanted into patients could help diagnose disease and track its progress, following a development by scientists.

Related Articles


Researchers have developed tiny probes comprising gold-coated particles. These can be inserted into cells, enabling diseases to be detected and monitored remotely using light from a laser.

Once the probe is inside a cell, laser light shone on to it is absorbed then re-emitted, causing nearby proteins in the cell to vibrate according to their shape.

Because molecules change shape as disease progresses, they give rise to different vibrational frequencies. Scientists can measure and interpret these vibrations, to understand how the cell is responding to disease.

Gold is used to coat the sensor because it is an unreactive metal, preventing the body from rejecting the implant. The laser technique is highly sensitive, fast and uses a low-power laser.

Scientists say the probes could be a useful tool to learn more about diseases at a very small scale, by observing how molecules interact. Further studies will look at diseases linked to the immune system in the first instance, but researchers say the technique has potential to help doctors diagnose and monitor a range of conditions.

Dr Colin Campbell, who led the research, said: "By creating a sensor that can safely be implanted into tissue and combining this with a sensitive light-measurement technique, we have developed a useful device that will help diagnose and track disease in patients."

The research, funded by the Scottish Universities Physics Alliance, EaSTChem and the Engineering and Physical Sciences Research Council, was published in the journals Chemical Communications, the Journal of Biophotonics and ACSNano.


Story Source:

The above story is based on materials provided by University of Edinburgh. Note: Materials may be edited for content and length.


Cite This Page:

University of Edinburgh. "Tiny gold probes give scientists a sense of how disease develops." ScienceDaily. ScienceDaily, 12 April 2010. <www.sciencedaily.com/releases/2010/03/100329075933.htm>.
University of Edinburgh. (2010, April 12). Tiny gold probes give scientists a sense of how disease develops. ScienceDaily. Retrieved December 29, 2014 from www.sciencedaily.com/releases/2010/03/100329075933.htm
University of Edinburgh. "Tiny gold probes give scientists a sense of how disease develops." ScienceDaily. www.sciencedaily.com/releases/2010/03/100329075933.htm (accessed December 29, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Monday, December 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Drone Owners, Here's What To Know Before Taking Flight

Drone Owners, Here's What To Know Before Taking Flight

Newsy (Dec. 28, 2014) — As drones become more popular in the U.S. there's plenty of confusion about how they can be used without breaking the law. Video provided by Newsy
Powered by NewsLook.com
Christmas Gifted Drones Are Already Causing Problems

Christmas Gifted Drones Are Already Causing Problems

Newsy (Dec. 25, 2014) — Commercial drones were a popular gift this Christmas, but flying one is harder than it looks, and the results can range from comical to catastrophic. Video provided by Newsy
Powered by NewsLook.com
NASA Cameras Capture Solar Flare

NASA Cameras Capture Solar Flare

Reuters - US Online Video (Dec. 25, 2014) — NASA cameras capture images of intense solar flare on the sun. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Ukrainian Coal Miners Work to Stave Off Electricity Shortage

Ukrainian Coal Miners Work to Stave Off Electricity Shortage

AFP (Dec. 24, 2014) — Coal miners in the separatist east of Ukraine work to ensure there won't be electricity shortages during the coldest months of winter, but the country has declared a state of emergency in its electricity market. Duration: 00:59 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins