Genetic testing isn’t something you can do in a few minutes. It’s an involved process, requiring special chemicals and instruments that aren’t commonplace everywhere. But now some scientists at Berkeley have created a technique that uses electrostatic tech instead, which simplifies everything.

The DNA is prepared in a lab first and put on a microarray. Negatively charged microspheres are spread across the surface, which push themselves into clumps as they move away from the like-charged DNA areas. It’s an easier and simpler way as well as less costly than current techniques we use now. Apparently the resulting clumps are large enough to be recorded by simple imaging devices like your cellphone camera. It means that in the near future DNA testing could be super quick and accessible.