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SUMMARY:"Hops\, Walks\, and Spins: The Choreography of Cellular Electron T
 ransport at Biotic-Abiotic Interfaces" -  Professor Moh El-Naggar\, Depart
 ments of Physics\, Biological Sciences\, and Chemistry\, University of Sou
 thern California\, USA
DTSTART:20240513T133000Z
DTEND:20240513T143000Z
UID:TALK216604@talks.cam.ac.uk
CONTACT:Sharon Connor
DESCRIPTION:Electronic components that bridge the biotic-abiotic interface
  will have vast implications for both studying and harnessing the activity
  of living cells. While much ongoing research focuses on applying traditio
 nal rigid electronics to biology\, an alternative is to discover bioelectr
 onic solutions that life itself evolved to interact with the abiotic world
 . Towards realizing this vision\, recent studies at the interface of micro
 biology\, electrochemistry\, and physics have uncovered metalloprotein ele
 ctron conduits and nanowires that electronically link bacteria to extracel
 lular surfaces ranging from environmental minerals to solid-state electrod
 es. Since this extracellular electron transport naturally evolved to inter
 act with external surfaces\, a fundamental understanding has special impli
 cations for new bioelectrochemical technologies and living electronics tha
 t harness the advantages of microbes in detecting external signals or host
 ing synthetic genetic circuits.\n\n \n\nWe will describe our recent progre
 ss in understanding extracellular and intercellular electron transport at 
 multiple length scales\, from the biophysics of individual multiheme cytoc
 hromes to the electrophysiology of whole bacteria and multicellular commun
 ities ranging from biofilms to cable bacteria. Using electrochemistry\, si
 ngle molecule tracking\, stochastic simulations of cell surface multiheme 
 cytochromes\, and lithographic patterning of electrode attached biofilms\,
  we describe how the interplay of cytochrome dynamics and electron hopping
  can give rise to long-distance electron conduction along bacterial membra
 ne surfaces. In addition\, we describe strategies to characterize and harn
 ess the electrochemical activity\, spin filtering\, and conduction propert
 ies of bacterial electron conduits in both synthetic structures and living
  biofilms.\n\n\nThis talk will be highly interdisciplinary and aimed at a 
 broad audience (chemistry\, biochemistry\, biophysics\, and microbiology).
 \n\n\nThere are limited slots available for meeting & chatting with the pr
 esenter\, there is also the opportunity to meet over lunch or dinner.  Ple
 ase email ASAP j.zhang.group.admin@ch.cam.ac.uk (Alexandra Campbell) with 
 your contact details and preferred option if you would like to take up thi
 s opportunity.  Postgraduates\, PDRAs and PIs are all welcome to take up t
 his offer.\n
LOCATION:Dept. of Chemistry\, Pfizer Lecture Theater
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