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First paper 'dipstick' test for determining blood type

Date:
June 3, 2010
Source:
American Chemical Society
Summary:
Scientists are reporting development of the first "dipstick" test for instantly determining a person's blood type at a cost of just a few pennies. The test involves placing a drop of blood on a specially treated paper strip.

Blood captured from a vein. Medical workers who conduct a test to determine a patient's blood type could find the procedure faster and easier in the future using an inexpensive paper-based "dipstick" test.
Credit: iStockphoto/Alexander Raths

Scientists are reporting development of the first "dipstick" test for instantly determining a person's blood type at a cost of just a few pennies.

Their study on the test, which involves placing a drop of blood on a specially treated paper strip, appears in ACS' journal Analytical Chemistry, where the authors say it could be a boon to health care in developing countries. The test also could be useful in veterinary medicine, for typing animals' blood in the field, they note.

Gil Garnier and colleagues explain that determining a patient's blood type is critical for successful blood transfusions, which save millions of lives each year worldwide. There are four main blood types: A, B, AB, and O. Use of the wrong blood type in a patient can be fatal. Current methods for determining blood type require the use of sophisticated instruments that are not available in many poor parts of the world. An inexpensive portable test could solve that problem.

The scientists describe development of prototype paper test strips impregnated with antibodies to the antigens on red blood cells that determine blood type. In lab tests using blood samples from human volunteers, the scientists showed that a drop of blood placed on the strip caused a color change that indicated blood type. The results were as accurate as conventional blood typing. "The paper diagnostics manufacturing cost is a few pennies per test and can promote health in developing countries," the report notes.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Mohidus Samad Khan, George Thouas, Wei Shen, Gordon Whyte, Gil Garnier. Paper Diagnostic for Instantaneous Blood Typing. Analytical Chemistry, 2010; 82 (10): 4158 DOI: 10.1021/ac100341n

Cite This Page:

American Chemical Society. "First paper 'dipstick' test for determining blood type." ScienceDaily. ScienceDaily, 3 June 2010. <www.sciencedaily.com/releases/2010/06/100602121200.htm>.
American Chemical Society. (2010, June 3). First paper 'dipstick' test for determining blood type. ScienceDaily. Retrieved September 20, 2014 from www.sciencedaily.com/releases/2010/06/100602121200.htm
American Chemical Society. "First paper 'dipstick' test for determining blood type." ScienceDaily. www.sciencedaily.com/releases/2010/06/100602121200.htm (accessed September 20, 2014).

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