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UID:920@biology.technion.ac.il

DTSTART;TZID=Asia/Jerusalem:20200915T130000

DTEND;TZID=Asia/Jerusalem:20200915T140000

DTSTAMP:20210802T125902Z

URL:https://biology.technion.ac.il/en/seminars/m-sc-graduate-seminar-benja
 min-eichenbaum-2/

SUMMARY:M.Sc. Graduate Seminar-Benjamin Eichenbaum [No Categories]
DESCRIPTION:Location:   \n Affiliation: \n Host:\n Photosynthesisis the pro
 cess by which solar energy is converted into chemical energy in theform of
  complex carbohydrates and ATP. With growing interest inphotosynthesis a
 s a potential renewable- energysource\, Bio-photo-electrochemical cells
  (BPEC) were designed andfabricated with the purpose of light energy tra
 nsformation into electricalpower or even hydrogen fuel. InBPEC systems\,
  one of the factors limiting power outputs and efficiency is themolecular 
 damage caused to the photosynthetic protein machinery due to intenseradiat
 ion exposure for long time periods (e.g. Photoinhibition). Tocope with ra
 diation damage and minimize photoinhibition\,certain organisms that dwell 
 in high radiation areas have developed specialrepair mechanisms (e.g. ph
 otoprotection).One such organism is the unicellular green micro-algae Chl
 orella ohadii\,which was isolated from soil-crust beds in the Nitzanadese
 rt\, Israel. Originating from an arid desert area\, C. ohadii isa good 
 candidate for improving our BPEC set-up\, having a robust photoprotection
 mechanism and fast proliferation rate. C. ohadii cells and isolatedth
 ylakoid membranes have generated stable photocurrents inthe BPEC sys
 tem\, with ferricyanide asthe exogenous electron mediator. The majority of
  current originates fromphotosynthesis\, as it was inhibited upon additio
 n of DCMU.Inthis study\, we established and evaluated the power-output 
 andperformance of an algal BPEC system with C. ohadii cellsor thylakoid
 s\, demonstrating its potential for sustainable bio-energyproduction.   

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