https://phys.org/news/2017-06-lab-chip-health-germs-pollutants.html
http://pubs.rsc.org/en/Content/ArticleLanding/2017/LC/C7LC00035A#!divAbstract

you can find more on internet, this was just a non technical article easy to read and understand for everyone, but if you are interested you can go deeper, there are a lot of papers about it!