Paper-Based Blood Test

Oct-23-12 A paper-based blood test for liver damage could be of particular use in developing countries, where liver damage is widespread as a side effect of drug treatments.

The test, created by Diagnostics for All, consists of a pattern of channels and wells on a piece of absorbent paper. A drop of blood placed on the paper is absorbed and sent to the test wells, which have been spotted with chemicals that will change color when they detect certain markers in the liquid. The chip works simply and without the need for much additional equipment, making it ideal for use in poor and rural environments.

The chip has been in development for some time, and the first patient trials are now taking place at a hospital in Vietnam.

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