Paper-based electrodes for more accurate rapid test

Rapid tests are convenient, but the lines on the test strip aren’t always easy to interpret. Chih-​Jen Shih and Andrew deMello, together with researchers from their groups, have developed a rapid test system incorporating electrically conducting graphene paper. In addition to being inexpensive to fabricate, it is easy to use and as accurate as lab measurements. The test is also suitable for soil, air, or water samples.