Remote-controlled implantable device delivers HIV prevention drug July 13th, 2016 A Houston Methodist research team received a nearly $4 million grant to test a transcutaneously refillable implant that administers pre-exposure prophylaxis drugs to subjects at risk of HIV-exposure. The National Institute of Allergy and Infectious Diseases (NIAID) awarded Alessandro Grattoni, Ph.D., the multi-million dollar grant over five years to enhance the nanochannel delivery system (nDS), which provides sustained and constant release of drugs without the use of pumps, valves or a power supply. Grattoni, chair of the Department of Nanomedicine at Houston Methodist Research Institute, leads the project which has already shown in pilot studies that the device successfully released …