Spectrally Silent Protein Reaction Dynamics Revealed by Time-Resolved Thermodynamics and Diffusion Techniques

2021 ◽  
Vol 54 (9) ◽  
pp. 2238-2248
Author(s):  
Masahide Terazima
Keyword(s):  
Reaction Dynamics ◽  
Time Resolved ◽  
Protein Reaction ◽  
And Diffusion

ChemInform Abstract: Time-Resolved Structural Studies of Protein Reaction Dynamics: A Smorgasbord of X-Ray Approaches

ChemInform ◽  
2011 ◽  
Vol 42 (5) ◽  
pp. no-no
Author(s):  
Sebastian Westenhoff ◽  
Elena Nazarenko ◽  
Erik Malmerberg ◽  
Jan Davidsson ◽  
Gergely Katona ◽  
...  
Keyword(s):  
Reaction Dynamics ◽  
Structural Studies ◽  
Time Resolved ◽  
X Ray ◽  
Protein Reaction

Cyclization Reaction Dynamics of a Photochromic Diarylethene Derivative as Revealed by Femtosecond to Microsecond Time-Resolved Spectroscopy

2011 ◽  
Vol 115 (10) ◽  
pp. 4265-4272 ◽  
Author(s):  
Yukihide Ishibashi ◽  
Mika Fujiwara ◽  
Toshiyuki Umesato ◽  
Hisayuki Saito ◽  
Seiya Kobatake ◽  
...  
Keyword(s):  
Reaction Dynamics ◽  
Cyclization Reaction ◽  
Time Resolved ◽  
Time Resolved Spectroscopy

Comparative Study of Photocarrier Dynamics in CVD-deposited CuWO4, CuO, and WO3 Thin Films for Photoelectrocatalysis

2020 ◽  
Vol 234 (4) ◽  
pp. 699-717
Author(s):  
James Hirst ◽  
Sönke Müller ◽  
Daniel Peeters ◽  
Alexander Sadlo ◽  
Lukas Mai ◽  
...  
Keyword(s):  
Thin Films ◽  
Carrier Mobility ◽  
Carrier Transport ◽  
Terahertz Spectroscopy ◽  
Chemical Vapor ◽  
Photoelectrochemical Cells ◽  
Time Resolved ◽  
And Diffusion ◽  
Wo3 Thin Films ◽  
Carrier Transport Properties

AbstractThe temporal evolution of photogenerated carriers in CuWO4, CuO and WO3 thin films deposited via a direct chemical vapor deposition approach was studied using time-resolved microwave conductivity and terahertz spectroscopy to obtain the photocarrier lifetime, mobility and diffusion length. The carrier transport properties of the films prepared by varying the copper-to-tungsten stoichiometry were compared and the results related to the performance of the compositions built into respective photoelectrochemical cells. Superior carrier mobility was observed for CuWO4 under frontside illumination.

scholarly journals Time-Resolved Macromolecular Crystallography at Pulsed X-ray Sources

2019 ◽  
Vol 20 (6) ◽  
pp. 1401 ◽  
Author(s):  
Marius Schmidt
Keyword(s):  
Structural Biology ◽  
Free Electron ◽  
Reaction Dynamics ◽  
X Rays ◽  
Free Electron Lasers ◽  
Macromolecular Crystallography ◽  
Time Resolved ◽  
X Ray ◽  
Methodological Aspects

The focus of structural biology is shifting from the determination of static structures to the investigation of dynamical aspects of macromolecular function. With time-resolved macromolecular crystallography (TRX), intermediates that form and decay during the macromolecular reaction can be investigated, as well as their reaction dynamics. Time-resolved crystallographic methods were initially developed at synchrotrons. However, about a decade ago, extremely brilliant, femtosecond-pulsed X-ray sources, the free electron lasers for hard X-rays, became available to a wider community. TRX is now possible with femtosecond temporal resolution. This review provides an overview of methodological aspects of TRX, and at the same time, aims to outline the frontiers of this method at modern pulsed X-ray sources.

scholarly journals Fragmentation of a dioxolanyl radical via nonstatistical reaction dynamics: characterization of the vinyloxy radical by ns time-resolved laser flash photolysis

2018 ◽  
Vol 20 (30) ◽  
pp. 19819-19828
Author(s):  
Götz Bucher ◽  
Mukul Lal ◽  
Anup Rana ◽  
Michael Schmittel
Keyword(s):  
Flash Photolysis ◽  
Laser Flash Photolysis ◽  
Reaction Dynamics ◽  
Laser Flash ◽  
Time Resolved

Photolysis of a dioxolanyl Barton ester results in formation of the vinyloxy radical, via nonstatistical reaction dynamics. The nonstatistical reaction involves ester cleavage, CO2 loss and fragmentation of the intermediate dioxolanyl radical.

Ultrafast X-ray diffraction in liquid, solution and gas: present status and future prospects

2010 ◽  
Vol 66 (2) ◽  
pp. 270-280 ◽  
Author(s):  
Jeongho Kim ◽  
Kyung Hwan Kim ◽  
Jae Hyuk Lee ◽  
Hyotcherl Ihee
Keyword(s):  
Single Molecule ◽  
Reaction Dynamics ◽  
Liquid Solution ◽  
Substantial Improvement ◽  
Photon Flux ◽  
Solvation Dynamics ◽  
Structural Transitions ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray

In recent years, the time-resolved X-ray diffraction technique has been established as an excellent tool for studying reaction dynamics and protein structural transitions with the aid of 100 ps X-ray pulses generated from third-generation synchrotrons. The forthcoming advent of the X-ray free-electron laser (XFEL) will bring a substantial improvement in pulse duration, photon flux and coherence of X-ray pulses, making time-resolved X-ray diffraction even more powerful. This technical breakthrough is envisioned to revolutionize the field of reaction dynamics associated with time-resolved diffraction methods. Examples of candidates for the first femtosecond X-ray diffraction experiments using highly coherent sub-100 fs pulses generated from XFELs are presented in this paper. They include the chemical reactions of small molecules in the gas and solution phases, solvation dynamics and protein structural transitions. In these potential experiments, ultrafast reaction dynamics and motions of coherent rovibrational wave packets will be monitored in real time. In addition, high photon flux and coherence of XFEL-generated X-ray pulses give the prospect of single-molecule diffraction experiments.

Sign in / Sign up

Export Citation Format

Share Document