More than 35 million HIV-infected people live in
the developing world, where resources are scarce. We have been
developing low-cost diagnostic devices for global health problems, such
as counting CD4+ T lymphocytes in HIV infected patients at resource
limited settings. The absolute number of CD4+ T lymphocytes in blood is
vital for evaluating HIV-infected patients and has important prognostic
and therapeutic implications. Currently, these values are obtained
through using a flow cytometer, which is a very expensive method.
Moreover, we aim to develop technologies to capture various cell types
from blood using nanoparticles, and microscale technologies.