If you live in any big city in the Midwest, and St. Louis in particular, you’re probably all too familiar with the site of vacant, empty land where homes and businesses used to be.
This issue of vacant land in an otherwise urban environment presents tough challenges for cities. This weekend ground will be broken on several projects which aim to change the way neighborhoods and cities deal with vacant property.
Credit Gary Weil/Washington University School of Medicine
Technicians test blood for filariasis, a parasitic infection, in a field laboratory in the town of Madingou in the Republic of Congo. Their work is part of project led by Dr. Gary Weil of the Washington University Center for Global Health and Infectious Disease.
Researchers at Washington University and the University of Illinois at Urbana-Champaign have developed miniaturized electronic devices small enough to safely insert into the brains of live mice. The tiny wireless devices can target specific brain cells and influence behavior.
University of Illinois materials scientist John Rogers co-led the study and helped design the devices. He says they’re on the same size-scale as cells, so they can penetrate far down into the brain.
Researchers at Washington University have genetically-engineered cells to react to light.
By taking light-sensing receptors from the eye — called opsins — and inserting them into immune cells, the researchers were able to trick the cells into moving toward a laser beam, in the same way they would move toward a bacterial infection.
Washington University molecular biologist N. Gautam led the research.