Featured Research

from universities, journals, and other organizations

Blood Diagnosis: Chip-based And Mobile

Date:
October 14, 2009
Source:
Fraunhofer-Gesellschaft
Summary:
New chip-based blood analysis takes just a few minutes and the doctor knows straight-away whether there are any pathogens in the blood. An improved marker-free technique provides the basis for faster analysis, whether in a hospital or for mobile blood donations.

Unit for blood-measurement chip.
Credit: Copyright Fraunhofer-Gesellschaft

New chip-based blood analysis takes just a few minutes and the doctor knows straight-away whether there are any pathogens in the blood. An improved marker-free technique provides the basis for faster analysis, whether in a hospital or for mobile blood donations.

Related Articles


If a person loses a large amount of blood the consequences can be critical. That's why adequate quantities of donated blood have to be kept available in hospitals and blood banks. In Egypt doctors collect blood by traveling to towns and villages and conducting blood donation sessions in a laboratory bus. The problem is that 25 per cent of the samples taken contain pathogens, including HIV, hepatitis and syphilis. As these diseases can be passed on in transfusions, the contaminated blood cannot be used. Conventional fast tests are not suitable in most cases for mobile use.

In future a rapid and robust analysis technique could help. A few drops of blood could be tested in the bus to check whether it can be used. Only if the result is positive will the doctors take a larger quantity from the donor. The basis for this has been provided by research scientists at the Fraunhofer Institute for Biomedical Engineering IBMT in Sankt Ingbert under an EU project also involving the Egyptian company VACSERA, Mivitec GmbH, the Institute for Analytical Sciences ISAS in Dortmund and the University of Lausitz. “Our consortium has developed a glass chip which has antibodies on it. Tiny surface oscillations are induced in the chip. If the relevant virus binds with an antibody, the oscillation changes,” explains Dr. Thomas Velten, Head of Department at the IBMT.

The technique is not new, but the chip that has been developed offers advantages. Usually there is only one measurement field and a reference field next to it, positioned a just a few millimeters apart. But the temperature there can be different. On the new chip, the measurement and reference fields are divided into narrow strips which in each case are located right next to each other. As a result the chip is more resistant to fluctuations in temperature. What’s more, the new chip consists of four analysis squares, which means that the blood can be examined for four different pathogens during each test.

It has also been difficult up till now for laboratory workers to avoid contact with the blood and protect themselves from infections while conducting tests in the bus. The researchers at the IBMT have therefore encapsulated the chip. This makes the blood follow a defined course on the chip, protecting the user. A first prototype of the measurement device is being presented at the Medica trade fair from November 18 to 21 in Düsseldorf. Dr. Velten estimates that the device could come onto the market in about three years' time.


Story Source:

The above story is based on materials provided by Fraunhofer-Gesellschaft. Note: Materials may be edited for content and length.


Cite This Page:

Fraunhofer-Gesellschaft. "Blood Diagnosis: Chip-based And Mobile." ScienceDaily. ScienceDaily, 14 October 2009. <www.sciencedaily.com/releases/2009/10/091001101504.htm>.
Fraunhofer-Gesellschaft. (2009, October 14). Blood Diagnosis: Chip-based And Mobile. ScienceDaily. Retrieved November 28, 2014 from www.sciencedaily.com/releases/2009/10/091001101504.htm
Fraunhofer-Gesellschaft. "Blood Diagnosis: Chip-based And Mobile." ScienceDaily. www.sciencedaily.com/releases/2009/10/091001101504.htm (accessed November 28, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, November 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Rural India's Low-Cost Sanitary Pad Revolution

Rural India's Low-Cost Sanitary Pad Revolution

AFP (Nov. 28, 2014) — One man hopes his invention -– a machine that produces cheap sanitary pads –- will help empower Indian women. Duration: 01:51 Video provided by AFP
Powered by NewsLook.com
Research on Bats Could Help Develop Drugs Against Ebola

Research on Bats Could Help Develop Drugs Against Ebola

AFP (Nov. 28, 2014) — In Africa's only biosafety level 4 laboratory, scientists have been carrying out experiments on bats to understand how virus like Ebola are being transmitted, and how some of them resist to it. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
WHO Says Male Ebola Survivors Should Abstain From Sex

WHO Says Male Ebola Survivors Should Abstain From Sex

Newsy (Nov. 28, 2014) — WHO cites four studies that say Ebola can still be detected in semen up to 82 days after the onset of symptoms. Video provided by Newsy
Powered by NewsLook.com
Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) — The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 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

 

Health & Medicine

Mind & Brain

Living & Well

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