25 April 2018
Vol 10, Issue 438

About The Cover

Cover image expansion

ONLINE COVER Let's Get Digital. Digital microfluidic devices use electrostatic forces to control the movement of droplets of fluids. This image of a digital microfluidic cartridge is part of an assay developed by Ng et al. to test blood samples for measles- and rubella-reactive IgG. The authors designed inkjet-printed cartridges and used a laptop power supply to run a control box, performing serological surveys using small volumes of blood obtained on-site in a refugee camp in Kenya. By adapting digital microfluidics technology for use in remote locations, the authors have generated a new tool that can be used to advance global health and combat vaccine-preventable outbreaks. [CREDIT: LISA NGO/UNIVERSITY OF TORONTO]