Gerard C.L. Wong

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One of the long term challenges in human health and disease is the control of pathogens,
such as antibiotic-resistant forms of bacteria. In this talk, we will briefly describe two
directions where materials science based approaches have been useful.
1) Bacterial biofilms are structured multi-cellular communities that are notoriously
resistant to antibiotics. We translate bacteria movies into searchable databases of
bacterial behavior and find an unexpected diversity in motility driven by Type IV pili
across different bacterial species. The associated phenomena include ‘stick-slip’
motion analogous to earthquake dynamics, and self-organized distribution of
resources in early biofilm development reminiscent of capitalist economies.
2) We examine the mechanism of a range of pore-forming polypeptides, including
antimicrobial peptides, cell penetrating peptides, viral fusion peptides, and apoptosis
proteins, and show how a combination of topology, coordination chemistry, and
materials science can be used to approach a unified understanding.

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California NanoSystems Institute, UCLA
Institute for Genetics, New Seminar Room, Ground Floor
Contact: not specified