Forrest R. Kohl
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View article: Ultrafast Radical Photogeneration Pathways in Eumelanin<sup>†</sup>
Ultrafast Radical Photogeneration Pathways in Eumelanin<sup>†</sup> Open
Eumelanin is a ubiquitous biological pigment that rapidly and efficiently deactivates excited states created by UV or visible radiation. Paradoxically, photoirradiation of eumelanin also generates radicals and harmful reactive oxygen speci…
View article: Ultrafast excited state dynamics of silver ion-mediated cytosine–cytosine base pairs in metallo-DNA
Ultrafast excited state dynamics of silver ion-mediated cytosine–cytosine base pairs in metallo-DNA Open
To better understand the nexus between structure and photophysics in metallo-DNA assemblies, the parallel-stranded duplex formed by the all-cytosine oligonucleotide, dC20, and silver nitrate was studied by circular dichroism (CD), femtosec…
View article: Ultrafast spectral hole burning reveals the distinct chromophores in eumelanin and their common photoresponse
Ultrafast spectral hole burning reveals the distinct chromophores in eumelanin and their common photoresponse Open
Seeing the colors in black: ultrafast transient hole burning spectroscopy reveals the absorption properties of discrete chromophores and their interactions in the skin pigment eumelanin.
View article: Intermolecular Hydrogen Bonding Modulates O‐H Photodissociation in Molecular Aggregates of a Catechol Derivative
Intermolecular Hydrogen Bonding Modulates O‐H Photodissociation in Molecular Aggregates of a Catechol Derivative Open
The catechol functional group plays a major role in the chemistry of a wide variety of molecules important in biology and technology. In eumelanin, intermolecular hydrogen bonding between these functional groups is thought to contribute to…