We have directly observed the ultrafast vibrational dynamics in photoexcited deoxyhemoglobin. These results indicate that excess porphyrin vibrational energy completely dissipates within 15 ps in photoexcited deoxyhemoglobin. The Stokes and anti-Stokes Raman spectra were probed with 8-ps 355-nm pulses following photoexcitation at 532 nm. Stokes Raman bands show negative transients, while anti-Stokes bands at the same Raman shifts show positive transients with the identical decay time constants. This combination of spectral features can be assigned only to vibrationally hot molecules. In contrast, conformational changes of the heme structure would be indicated by Stokes and anti-Stokes band transients that both go positive or else both go ne...
International audienceUltrafast time-resolved resonance Raman spectra of carbonmonoxy hemoglobin (Hb...
This dissertation describes the development and application of transient Raman and absorption spectr...
AbstractUltrafast time-resolved resonance Raman spectra of carbonmonoxy hemoglobin (Hb), nitroxy Hb,...
We have directly observed hot vibrations in photoexcited deoxyhemoglobin. The data quantitatively in...
© 1893 SPIE. Transient picosecond Raman spectroscopy is capable of differentiating vibrational relax...
We report pump-probe picosecond Raman experiments on oxy- and deoxyhemoglobin (oxyHb and deoxyHb, re...
Identifying the structural rearrangements during photoinduced reactions is a fundamental challenge f...
International audienceIdentifying the structural rearrangement and the active sites in photo-induced...
The reaction pathway in photoexcited hemeproteins (ligand dissociation, energy redistribution and st...
Time-resolved anti-Stokes Raman spectroscopy is selective for vibrationally excited modes, and it is...
We have studied ultrafast dynamics in two systems: heme proteins and small de novo peptides. Heme re...
International audienceWe describe a pump-probe Raman spectrometer based on a femtosecond Ti:sapphire...
ultrafast protein responses Abstract: This contribution reports on experiments, using heme construct...
International audienceDetermining the initial pathway for ultrafast energy redistribution within bio...
AbstractFemtosecond coherence spectroscopy is applied to a series of ferric heme protein samples. Th...
International audienceUltrafast time-resolved resonance Raman spectra of carbonmonoxy hemoglobin (Hb...
This dissertation describes the development and application of transient Raman and absorption spectr...
AbstractUltrafast time-resolved resonance Raman spectra of carbonmonoxy hemoglobin (Hb), nitroxy Hb,...
We have directly observed hot vibrations in photoexcited deoxyhemoglobin. The data quantitatively in...
© 1893 SPIE. Transient picosecond Raman spectroscopy is capable of differentiating vibrational relax...
We report pump-probe picosecond Raman experiments on oxy- and deoxyhemoglobin (oxyHb and deoxyHb, re...
Identifying the structural rearrangements during photoinduced reactions is a fundamental challenge f...
International audienceIdentifying the structural rearrangement and the active sites in photo-induced...
The reaction pathway in photoexcited hemeproteins (ligand dissociation, energy redistribution and st...
Time-resolved anti-Stokes Raman spectroscopy is selective for vibrationally excited modes, and it is...
We have studied ultrafast dynamics in two systems: heme proteins and small de novo peptides. Heme re...
International audienceWe describe a pump-probe Raman spectrometer based on a femtosecond Ti:sapphire...
ultrafast protein responses Abstract: This contribution reports on experiments, using heme construct...
International audienceDetermining the initial pathway for ultrafast energy redistribution within bio...
AbstractFemtosecond coherence spectroscopy is applied to a series of ferric heme protein samples. Th...
International audienceUltrafast time-resolved resonance Raman spectra of carbonmonoxy hemoglobin (Hb...
This dissertation describes the development and application of transient Raman and absorption spectr...
AbstractUltrafast time-resolved resonance Raman spectra of carbonmonoxy hemoglobin (Hb), nitroxy Hb,...