Zobrazeno 1 - 10
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pro vyhledávání: '"Forrest R. Kohl"'
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Eumelanin protects cells from sun damage and is promising for energy conversion applications, but its structure and excited state dynamics are elusive. Here the authors shed light on both aspects combining selective excitation of UV- and visible-abso
Externí odkaz:
https://doaj.org/article/65357d61531a441c985836fbf31bc7f4
Publikováno v:
Photochemistry and photobiologyREFERENCES.
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 species, but the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0325f844e0f8bb31c9ea66485f000809
https://pubmed.ncbi.nlm.nih.gov/36178073
https://pubmed.ncbi.nlm.nih.gov/36178073
Publikováno v:
Chemical Science
Eumelanin, the brown-black pigment found in organisms from bacteria to humans, dissipates solar energy and prevents photochemical damage. While the structure of eumelanin is unclear, it is thought to consist of an extremely heterogeneous collection o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d99ebfd2e383ea3409c6096dfa03be48
https://doi.org/10.1039/c9sc04527a
https://doi.org/10.1039/c9sc04527a
Publikováno v:
The Journal of Physical Chemistry B. 123:5985-5994
Supramolecular assemblies form when silver nitrate is added to an aqueous solution of adenine (Ade) or 2-aminopurine (2AP) in a 2:1 mole ratio. Atomic force microscopy images reveal nanofibers that are ∼30 nm in diameter and micrometers in length i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90857853f651d15424866923e6620410
https://doi.org/10.1021/acs.jpcb.9b00660
https://doi.org/10.1021/acs.jpcb.9b00660
Publikováno v:
Faraday Discussions. 216:520-537
Eumelanin is a natural pigment with photoprotective and radical scavenging characteristics, which are vital for a multitude of living organisms. However, the molecular mechanisms behind these functions remain obscure, in part because eumelanin is a h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02b968163e509e1e4d767a3704a7d1a6
https://doi.org/10.1039/c8fd00231b
https://doi.org/10.1039/c8fd00231b
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Nature Communications
Nature Communications
Eumelanin is a brown-black biological pigment with sunscreen and radical scavenging functions important to numerous organisms. Eumelanin is also a promising redox-active material for energy conversion and storage, but the chemical structures present
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4eb80fc4a8c7fa8764cace0ea7df0558
https://pubmed.ncbi.nlm.nih.gov/32917892
https://pubmed.ncbi.nlm.nih.gov/32917892
Autor:
Christopher Grieco, Yuyuan Zhang, Forrest R. Kohl, Lluís Blancafort, Bern Kohler, Sangeetha Natarajan
Publikováno v:
Grieco, Christopher Kohl, Forrest R. Zhang, Yuyuan Z. Natarajan, Sangeetha Blancafort San José, Lluís Kohler, Bern 2019 Intermolecular Hydrogen Bonding Modulates O-H Photodissociation in Molecular Aggregates of a Catechol Derivative Photochemistry and Photobiology 95 1 163 175
© Photochemistry and Photobiology, 2019, vol. 95, núm. 1, p. 163-175
Articles publicats (D-Q)
DUGiDocs – Universitat de Girona
instname
© Photochemistry and Photobiology, 2019, vol. 95, núm. 1, p. 163-175
Articles publicats (D-Q)
DUGiDocs – Universitat de Girona
instname
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 UV photopr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c85ffc29e83e243622fe39c0eb0f7512
https://hdl.handle.net/2072/373418
https://hdl.handle.net/2072/373418
Publikováno v:
Chemical communications (Cambridge, England). 55(29)
Changing the solvent from H2O to D2O dramatically affects the branching of the initial excited electronic states in an alternating G·C DNA duplex into two distinct decay channels. The slower, multisite PCET channel that deactivates more than half of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05b4f880e88c3e5eb240a341bf9c2bf8
https://pubmed.ncbi.nlm.nih.gov/30895979
https://pubmed.ncbi.nlm.nih.gov/30895979
Publikováno v:
The Journal of Chemical Physics. 153:105104
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), femtosecond transie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78e4e4c4abb81e72829aef1e34c43973
https://doi.org/10.1063/5.0020463
https://doi.org/10.1063/5.0020463
Publikováno v:
The journal of physical chemistry. A. 122(9)
To better understand how the solvent influences excited-state deactivation in DNA strands, femtosecond time-resolved IR (fs-TRIR) pump–probe measurements were performed on a d(AT)9·d(AT)9 duplex dissolved in a deep eutectic solvent (DES) made from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46b559f3f6cef43f11585f0ca5e9c349
https://pubmed.ncbi.nlm.nih.gov/29425461
https://pubmed.ncbi.nlm.nih.gov/29425461