[Todos] Seminarios DQIAyQF INQUIMAE/ Miercoles 16 de agosto, 16h.

[sara elizabeth bari]

Seminarios del Dpto. de Química Inorgánica, Analítica y Química Física / INQUIMAE

FCEyN - Universidad de Buenos Aires

http://www.qi.fcen.uba.ar/es

 

2do. Cuatrimestre, 2006

 

 

  

Miercoles 16 de Agosto, 16.00h
Aula Seminarios, DQIAyQF- INQUIMAE

Ciudad Universitaria, Pab. II, Piso 3 

 

Prof. Fraser Armstrong, FRSC

Universidad de Oxford, Laboratorios de Quimica Inorganica 

Enzimas Hidrogenasas para bioceldas de combustible

  a.. The bio-fuel cell project: Hydrogen is the transportable fuel of the future, offering clean and renewable energy. In this research, our studies on hydrogenases (NiFe) and laccases (Cu) are being applied with the aim of producing a fuel cell that is 100% derived from biological catalysts, and does not include any expensive chemicals or rare elements as redox mediators. We are working closely with Prof. Bärbel Friedrich, of the Humboldt University in Berlin, who is investigating the molecular biology of hydrogenases that can tolerate oxygen. 
  b.. The biohydrogen production project: In this project we are elucidating the mechanistic principles of hydrogen production by hydrogenases. Many groups worldwide are now interested in 'Bio Hydrogen'. This process occurs mainly in strictly anaerobic microbes and these enzymes (FeFe hydrogenases) are usually very O2-sensitive. We are studying the basis for O2 sensitivity to establish how this might be removed. 
  c.. Both the bio-fuel cell project and biohydrogen production projects involve fundamental studies of the unusual NiFe and FeFe active sites of hydrogenases from throughout the microbial world. Not only is this of importance to microbial enzymology, but it is highly desirable to determine the principles that will lead to the production of stable, synthetic hydrogen-cycling catalysts for future energy technologies. Collaborations are in place with Prof. Bärbel Friedrich (Berlin), Juan Fontecilla-Camps (Grenoble), John Peters (Utah), Wolfgang Lubitz (Max Planck Institute-Mülheim). 
  d.. 
  Links:
  http://www.chem.ox.ac.uk/researchguide/faarmstrong.html
  http://www.chem.ox.ac.uk/icl/faagroup/fuelcell.html
  http://www.chem.ox.ac.uk/icl/faagroup/hydrogenase.html

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