Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Bern Kohler"'
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:
Molecules, Vol 21, Iss 12, p 1645 (2016)
Melamine may have been an important prebiotic information carrier, but its excited-state dynamics, which determine its stability under UV radiation, have never been characterized. The ability of melamine to withstand the strong UV radiation present o
Externí odkaz:
https://doaj.org/article/5a3da0967fb14811a8f7f20431a6d196
Autor:
Xueqing Wang, Lilia Kinziabulatova, Marco Bortoli, Anju Manickoth, Marisa A. Barilla, Haiyan Huang, Lluís Blancafort, Bern Kohler, Jean-Philip Lumb
Publikováno v:
Nature Chemistry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d34a4d1266af27a1f89bace36be503f
https://doi.org/10.1038/s41557-023-01175-4
https://doi.org/10.1038/s41557-023-01175-4
Autor:
Zhiling Zhao, Eunkyoung Kim, Chen-Yu Chen, John R. Rzasa, Qian Zhang, Jinyang Li, Yang Tao, William E. Bentley, Jean-Philip Lumb, Bern Kohler, Gregory F. Payne
Publikováno v:
Materials Chemistry Frontiers. 6:1253-1260
Top-down measurements of catechol films show orthogonal energy flow via redox and optical modalities. These molecular electronic properties enable communication through both short-range redox modalities and long-range electromagnetic modalities.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51fd48d0deabde7755c21c2cb3bd66da
https://doi.org/10.1039/d2qm00106c
https://doi.org/10.1039/d2qm00106c
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
Autor:
Lara Martínez-Fernández, Yuyuan Zhang, Jinquan Chen, Bern Kohler, Jianhua Xu, Xueli Wang, Kun Zhang, Roberto Improta
Publikováno v:
Chemistry – A European Journal. 27:10932-10940
2'-Deoxy-5-formylcytidine (5fdCyd), a naturally occurring nucleoside found in mammalian DNA and mitochondrial RNA, exhibits important epigenetic functionality in biological processes. Because it efficiently generates triplet excited states, it is an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3552f0eb3c46099d149fdeedb4b6161
https://doi.org/10.1002/chem.202100787
https://doi.org/10.1002/chem.202100787
Publikováno v:
The Journal of Physical Chemistry Letters. 11:8958-8963
DNA-templated silver clusters are chromophores in which the nucleobases encode the cluster spectra and brightness. We describe the coordination environments of two nearly identical Ag106+ clusters that form with 18-nucleotide strands CCCCA CCCCT CCCX
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6885e308172c5ae57b4590b38d5c6233
https://doi.org/10.1021/acs.jpclett.0c02486
https://doi.org/10.1021/acs.jpclett.0c02486
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:
Physical Chemistry Chemical Physics. 22:5756-5764
Cerium oxide has attracted attention recently for its photocatalytic properties, but there are gaps in understanding its performance, especially at low and high pH. UV irradiation of ceria nanoparticles causes electrons from photogenerated electron-h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a773b3e90689c53fb46d440bc5100ef
https://doi.org/10.1039/c9cp06579b
https://doi.org/10.1039/c9cp06579b
Publikováno v:
The Journal of Chemical Physics. 158:044302
Two-dimensional infrared (2D IR) spectroscopy, infrared pump–infrared probe spectroscopy, and density functional theory calculations were used to study vibrational relaxation by ring and carbonyl stretching modes in a series of methylated xanthine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbf1fa463a7b604ae359fa2cbc976bdc
https://doi.org/10.1063/5.0135412
https://doi.org/10.1063/5.0135412