Zobrazeno 1 - 10
of 597
pro vyhledávání: '"Robin M. Hochstrasser"'
Autor:
Robin M. Hochstrasser, Stephen P. Brown, Amos B. Smith, Matthew J. Tucker, Mohannad Abdo, Joel R. Courter, Jianxin Chen
Publikováno v:
Proceedings of the National Academy of Sciences. 110:17314-17319
The relaxation of helical structures very close to equilibrium is observed via transient 2D IR spectroscopy. An initial distribution of synthetically distorted helices having an unnatural bridge linking the 10th and 12th residues of an alanine-rich
Publikováno v:
The Journal of Physical Chemistry Letters. 4:1866-1871
Coherent dynamics of degenerate quantum states symmetry-broken on the femtosecond timescale is found to exhibit the phenomenon of quantum beats. Frequency-resolved and polarization-selective heterodyned transient grating spectroscopy enabled us to re
Publikováno v:
The Journal of Physical Chemistry B. 117:4354-4364
The degenerate transition corresponding to asymmetric stretches of the D(3h) tricyanomethanide anion, C(CN)(3)(-), in aqueous solution was investigated by linear FTIR spectroscopy, femtosecond pump–probe spectroscopy, and 2D IR spectroscopy. Time r
Autor:
Mohannad Abdo, Joel R. Courter, Robin M. Hochstrasser, Jianxin Chen, Matthew J. Tucker, Amos B. Smith
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 234:156-163
The tetrazine chromophore holds promise as an effective photochemical trigger to achieve structural release, directed at the determination of peptide/protein motions that occur early in the folding processes. The photochemistry of 3,6-di-cysteine-S,S
Publikováno v:
The Journal of Physical Chemistry A. 115:9731-9738
The CN stretching vibrations of the guanidyl group in the arginine dipeptide side chain are examined by two-dimensional infrared spectroscopy. In D(2)O, the spectra display two distinct diagonal peaks. These nearly degenerate modes undergo ultrafast
Autor:
Robin M. Hochstrasser, Chinkuei Kuo
Publikováno v:
Journal of the American Chemical Society. 133:4664-4667
Sub-diffraction optical imaging with nanometer resolution of lipid phase-separated regions is reported. Merocyanine 540, a probe whose fluorescence is sensitive to the lipid phase, is combined with super-resolution imaging to distinguish the liquid-
Publikováno v:
Phys. Chem. Chem. Phys.. 13:2237-2241
The vibrations in the azido-, N(3), asymmetric stretching region of 2'-azido-2'-deoxyuridine (N(3)dU) are examined by two-dimensional infrared spectroscopy. In water and tetrahydrofuran (THF), the spectra display a single sharp diagonal peak that sho
Autor:
Matthew J. Tucker, Joel R. Courter, Jianxin Chen, Onur Atasoylu, Amos B. Smith, Robin M. Hochstrasser
Publikováno v:
Angewandte Chemie. 122:3694-3698
Publikováno v:
Proceedings of the National Academy of Sciences. 106:17751-17756
The motion of water molecules close to amide groups causes their vibrational frequencies to vary rapidly in time. These variations are uniquely sensed by 2-dimensional infrared spectroscopy (2D IR). Here, it is proposed from 2-dimensional experiments
Publikováno v:
The Journal of Physical Chemistry B. 113:8412-8417
The tryptophan dipeptide (NATMA) in D2O shows two conformers having distinctive acetyl end amide-I' transition frequencies. In two dimensional echo spectroscopy cross peaks between these conformer transitions are used to show they are undergoing exch