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Reduced parameter set determinable from geminate kinetics Noam Agmon *
 

Summary: Reduced parameter set determinable from geminate kinetics
Noam Agmon *
Department of Physical Chemistry and the Fritz Haber Research Center, The Hebrew University, Jerusalem 91904, Israel
Received 28 September 2005; in final form 9 October 2005
Available online 7 November 2005
Abstract
By fitting time-resolved measurements to models of diffusion influenced reactions it is possible to determine only parameters with no
spatial dependence. The original set of distance-dependent parameters is reduced to a set of distance-independent parameters, and only
these can be determined by fitting the model to the data. The present work demonstrates this point for reversible geminate recombination
in one and three dimensions, showing how the reduced set of parameters is found by utilizing dimensional analysis or known analytic
solutions. It is applied to the kinetic detection of proton-wires in the green fluorescent protein.
2005 Elsevier B.V. All rights reserved.
1. Introduction
The kinetics of fast bimolecular reactions in solution are
commonly tracked by transient spectroscopy methods
(absorbance, fluorescence), which follow the evolution of
the total population of one of the chemical species with
time (t). When the reaction is fast, the role of diffusion is
pivotal, hence such data are typically fitted to the solution
of an appropriate model for the diffusion influenced reac-

  

Source: Agmon, Noam - Institute of Chemistry, Hebrew University of Jerusalem

 

Collections: Chemistry