Sökning: WFRF:(Huijser Annemarie) > Superior photoprote...
Fältnamn | Indikatorer | Metadata |
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000 | 04146naa a2200397 4500 | |
001 | oai:lup.lub.lu.se:41235808-ca8d-4996-80cc-b1135b5de91d | |
003 | SwePub | |
008 | 160401s2014 | |||||||||||000 ||eng| | |
024 | 7 | a https://lup.lub.lu.se/record/46159092 URI |
024 | 7 | a https://doi.org/10.1021/ja501499q2 DOI |
040 | a (SwePub)lu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Corani, Aliceu Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)chem-acc |
245 | 1 0 | a Superior photoprotective motifs and mechanisms in eumelanins uncovered. |
264 | c 2014-08-11 | |
264 | 1 | b American Chemical Society (ACS),c 2014 |
520 | a Human pigmentation is a complex phenomenon commonly believed to serve a photoprotective function through the generation and strategic localization of black insoluble eumelanin biopolymers in sun exposed areas of the body. Despite compelling biomedical relevance to skin cancer and melanoma, eumelanin photoprotection is still an enigma: What makes this pigment so efficient in dissipating the excess energy brought by harmful UV-light as heat? Why has Nature selected 5,6-dihydroxyindole-2-carboxylic acid (DHICA) as the major building block of the pigment instead of the decarboxylated derivative (DHI)? By using pico- and femtosecond fluorescence spectroscopy we demonstrate herein that the excited state deactivation in DHICA oligomers is 3 orders of magnitude faster compared to DHI oligomers. This drastic effect is attributed to their specific structural patterns enabling multiple pathways of intra- and interunit proton transfer. The discovery that DHICA-based scaffolds specifically confer uniquely robust photoprotective properties to natural eumelanins settles a fundamental gap in the biology of human pigmentation and opens the doorway to attractive advances and applications. | |
650 | 7 | a NATURVETENSKAPx Kemix Teoretisk kemi0 (SwePub)104072 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Chemical Sciencesx Theoretical Chemistry0 (SwePub)104072 hsv//eng |
650 | 7 | a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng |
700 | 1 | a Huijser, Annemarieu Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)chem-aah |
700 | 1 | a Gustavsson, Thomas4 aut |
700 | 1 | a Markovitsi, Dimitra4 aut |
700 | 1 | a Malmqvist, Per-Åkeu Lund University,Lunds universitet,Beräkningskemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Computational Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)teok-pma |
700 | 1 | a Pezzella, Alessandro4 aut |
700 | 1 | a d'Ischia, Marco4 aut |
700 | 1 | a Sundström, Villyu Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)chph-vs |
710 | 2 | a Kemisk fysikb Enheten för fysikalisk och teoretisk kemi4 org |
773 | 0 | t Journal of the American Chemical Societyd : American Chemical Society (ACS)g 136:33, s. 11626-11635q 136:33<11626-11635x 1520-5126x 0002-7863 |
856 | 4 | u http://dx.doi.org/10.1021/ja501499qy FULLTEXT |
856 | 4 8 | u https://lup.lub.lu.se/record/4615909 |
856 | 4 8 | u https://doi.org/10.1021/ja501499q |
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