Stefan Haacke | EPFL Graph Search

Related publications (7)

Please note that this is not a complete list of this person’s publications. It includes only semantically relevant works. For a full list, please refer to Infoscience.

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Related publications (7)

Please note that this is not a complete list of this person’s publications. It includes only semantically relevant works. For a full list, please refer to Infoscience.

Functional electric field changes in photoactivated proteins revealed by ultrafast Stark spectroscopy of the Trp residues

Majed Chergui, Frank van Mourik, Andrea Cannizzo, Erwin Portuondo Campa, Stefan Haacke

Ultrafast transient absorption spectroscopy of wild-type bacteriorhodopsin (WT bR) and 2 tryptophan mutants (W86F and W182F) is performed with visible light excitation (pump) and UV probe. The aim is to investigate the photoinduced change in the charge dis ...

2009

On the excitation wavelength dependence of the fluorescence of bacteriorhodopsin

Majed Chergui, Erwin Portuondo Campa, Stefan Haacke, Selma Schenkl, Goran Zgrablic

We present a systematic study of the time-integrated fluorescence of native bacteriorhodopsin, as a function of excitation wavelength across the visible absorption band. While the fluorescence max. is unaffected, the spectrum broadens on the high-energy si ...

Elsevier2007

Heterogeneity and relaxation dynamics of the photoexcited retianl Schiff base cation in solution

Majed Chergui, Stefan Haacke, Goran Zgrablic

We present steady-state and broadband femtosecond fluorescence spectra of the protonated Schiff base of retinal in various protic and aprotic solvents, as a function of the excitation wavelength. A detailed spectral decomposition of the time-resolved fluor ...

2009