David W. Wright
Title and Contact Information
Director of Laboratories for Innovations in Global Health Technologies (LIGHT)
Ph.D., Massachusetts Institute of Technology, 1994
In the News
Kavli Fellow for 2011- Kavli/National Academy of Sciences Frontiers in Science Symposia
Research News @ Vanderbilt- David Wright (Chemistry) with Rick Haselton (Biomedical Engineering) and Ray Mernaugh (Biochemistry) supproted by the Bill and Melinda Gates Foundation to develop low resource diagnostics for the developing world
Arts and Science- Nothing to Sneeze At
Research News @ Vanderbilt- Professor David Wright has been elected as an AAAS Fellow
Our research employs inorganic chemistry, nanotechnology, and material science to solve real world problems. Students in the Wright group receive broad training in synthesis, physical methods, assay development, and biological systems. Our current interests lie in three areas:
- Re-imagining diagnostic tests for low resource environments
- Heme homeostasis in the malaria parasite, plasmodium falciparum
- Development of bioinspired routes for the synthesis of functional materials and devices
Low Resource Diagnostics
Lateral flow assays are one of the most common, simple and rapid formats for diagnostic tests. Unfortunately, many of them are simple not sensitive or specific enough to diagnose infections in the early stages when treatment is most effective. Our research group is asking the question: What are the approaches that could be used to make such tests 100-10,000 times more sensitive?
- Integration of effective sample concentration strategies to increase the delivery of biomarker target to the test.
- Development and characterization of improved molecular recognition elements for increased test specificity.
- Novel functionalized materials and strategies to control, direct, and optimize the fluid flow on the test.
- New amplification strategies for improved sensitivity.
Heme Homeostasis in Malaria
Over 40% of the world’s population is at risk from malaria. During an infection, the malaria parasite consumes vast quantities of the human host’s hemoglobin, releasing toxic free heme. We are interested in understanding how the parasite detoxifies this heme burden, discovering news probes to identify potential drug mechanisms and targets, and developing new tools to understand drug mode of actions. Projects include:
- High throughput assay development, screening, and probe development.
- Molecular tools to investigate the fate of heme load in parasites under drug stress and understand drug mechanism of action.
- Mass spectrometry tools to investigate metabolomics wide changes in parasite biochemistry under drug treatment.
Biomineralization results in an expansive array of complex materials ranging from laminate composites and ceramics such as bones, teeth, and shells to magnetic materials such as the forms of magnetite found in magnetobacteria. But nowhere in Nature is the complex dance of metal ion homesostasis, hierarchical materials, and form and function as instructive to the material science as in the glass shell of the diatoms and sponges. We seek to understand and harness Nature’s own processes to design technologically important materials and devices.
- Development of high-throughput screens to identify small molecule modulators of diatom shell geometry.
- Enzyme catalyzed formation of metal oxides.
- Bio-lithography approaches to the creation of three dimensional nanoscale structures.