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.

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 July 24, 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 July 24, 2014).

Share This




More Matter & Energy News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

TSA Administrator on Politics and Flight Bans

TSA Administrator on Politics and Flight Bans

AP (July 24, 2014) TSA administrator, John Pistole's took part in the Aspen Security Forum 2014, where he answered questions on lifting of the ban on flights into Israel's Tel Aviv airport and whether politics played a role in lifting the ban. (July 24) Video provided by AP
Powered by NewsLook.com
Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Algonquin Power Goes Activist on Its Target Gas Natural

Algonquin Power Goes Activist on Its Target Gas Natural

TheStreet (July 23, 2014) When The Deal's Amanda Levin exclusively reported that Gas Natural had been talking to potential suitors, the Ohio company responded with a flat denial, claiming its board had not talked to anyone about a possible sale. Lo and behold, Canadian utility Algonquin Power and Utilities not only had approached the company, but it did it three times. Its last offer was for $13 per share as Gas Natural's was trading at a 60-day moving average of about $12.50 per share. Now Algonquin, which has a 4.9% stake in Gas Natural, has taken its case to shareholders, calling on them to back its proposals or, possibly, a change in the target's board. Video provided by TheStreet
Powered by NewsLook.com
Robot Parking Valet Creates Stress-Free Travel

Robot Parking Valet Creates Stress-Free Travel

AP (July 23, 2014) 'Ray' the robotic parking valet at Dusseldorf Airport in Germany lets travelers to avoid the hassle of finding a parking spot before heading to the check-in desk. (July 23) Video provided by AP
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:
from the past week

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