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. 2017 Apr 20;4(4):044018. doi: 10.1063/1.4981019

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© 2017 Author(s).

2329-7778/2017/4(4)/044018/14

All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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FIG. 1. — Schematic description of the time-dependent Stokes shift (TDSS) measurement of solvation dynamics.¹⁰ (a) Electronic ground and excited state free energy surfaces of the chromophore attached to the biomolecule along an energy gap, or generalized solvation coordinate that characterizes the probe's electrostatic interaction with its environment, consisting (primarily) of the solvent and the polar and charged sites on the biomolecule. (b) Typical time-dependent Stokes shift decay in time for the chromophore in bulk water and attached to the biomolecule.