Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Relaxation Dynamics of Tryptophan in Water: A UV Fluorescence Up-Conversion and Molecular Dynamics Study
 
research article

Relaxation Dynamics of Tryptophan in Water: A UV Fluorescence Up-Conversion and Molecular Dynamics Study

Braem, O.  
•
Oskouei, A. Ajdarzadeh  
•
Tortschanoff, A.  
Show more
2010
The Journal of Physical Chemistry A

We report on an ultrafast experimental and simulations study of the early relaxation events of photoexcited tryptophan in water. Experimentally, we used fluorescence up-conversion in both polychromatic and single wavelength detection modes in the 300-480 nm range with polarization dependence. We report on the time evolution of the Stokes shift, bandwidth, and anisotropy from tens of femtoseconds to picoseconds. These observables contain signatures of the simultaneous occurrence of intramolecular and solvent-molecule interactions, which we disentangle with the help of nonequilibrium molecular dynamics simulations. We also observe a breakdown of the linear response approximation to describe our results.

  • Details
  • Metrics
Type
research article
DOI
10.1021/jp101778u
Web of Science ID

WOS:000281128900014

Author(s)
Braem, O.  
Oskouei, A. Ajdarzadeh  
Tortschanoff, A.  
van Mourik, F.  
Madrid, M.
Echave, J.
Cannizzo, A.  
Chergui, M.  
Date Issued

2010

Publisher

American Chemical Society

Published in
The Journal of Physical Chemistry A
Volume

114

Start page

9034

End page

9042

Subjects

Resonance Energy-Transfer

•

Excited-State Dynamics

•

Particle Mesh Ewald

•

Echo Peak Shift

•

Hydration Dynamics

•

Solvation Dynamics

•

Femtosecond Resolution

•

Hybrid Simulations

•

Biological Water

•

Protein Surface

Editorial or Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
LSU  
Available on Infoscience
October 4, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/54802
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés