Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Gerard Lang"'
Publikováno v:
International journal of cosmetic science. 3(3)
Synopsis Benzylidene camphor derivatives have been currently used as ultraviolet filters in sunscreen compositions. When solutions of these compounds are exposed to the light from a solar simulator, a photoinduced cis-trans isomerization is observed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::307a1c94491ecc980b1c1c23d42f5425
https://pubmed.ncbi.nlm.nih.gov/19469935
https://pubmed.ncbi.nlm.nih.gov/19469935
Publikováno v:
International journal of cosmetic science. 6(2)
Synopsis The ESR spectrum of hair presents a symmetrical absorption band with the same characteristics as pure melanin (g= 2.0030; deltaH= 5 G). Between 250 degrees K and 490 degrees K, the intensity of the signal increases as for pure melanin. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f87181d5e862b87701a7c34aae3ced8
https://pubmed.ncbi.nlm.nih.gov/19470002
https://pubmed.ncbi.nlm.nih.gov/19470002
Publikováno v:
Revue Forestière Française, Vol 69, Iss 6 (2019)
Au XXe siècle, le cerf devient un gibier intéressant pour la chasse et est soumis aux règles de droit national. Des règles de chasse sont édictées pour réguler les populations, qui ont largement progressé en quelques décennies. L’évolutio
Externí odkaz:
https://doaj.org/article/bbeacacd57ce4aa2b9d31573e8a1f2b2
Publikováno v:
Journal de Chimie Physique. 78:597-605
Les comportements photochimiques du methoxy-5 psoralene (MO-5-P) et du methoxy-8-psoralene (MO-8-P) ont ete compares en solution aqueuse (10— 5 M). Les rendements quantiques de photodimerisation sont respectivement 4,7.10— 5 et 1,8.10— 4 pour l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0717fe2e64325c89a391c2868004cabf
https://doi.org/10.1051/jcp/1981780597
https://doi.org/10.1051/jcp/1981780597
Publikováno v:
The Journal of Organic Chemistry. 54:2620-2628
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::823ab154d7bf83e90ba550fc8fac9cf0
https://doi.org/10.1021/jo00272a032
https://doi.org/10.1021/jo00272a032
Publikováno v:
Journal de Chimie Physique. 76:1133-1141
Les rendements de disparition par irradiation monochromatique a 365 nm sont determines pour differentes furocoumarines: l'evolution de leurs spectres d’absorption et d’emission est analysee.Les interactions avec l'ADN de ces furocoumarines dans l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::778698ec721773eead5499800c73bc06
https://doi.org/10.1051/jcp/1979761133
https://doi.org/10.1051/jcp/1979761133
Autor:
Gerard Lang, Andre Deflandre
Publikováno v:
International Journal of Cosmetic Science. 10:53-62
Synopsis A rapid method has been developed in order to compare the photostability of several sunscreen agents incorporated in the same type of emulsion. Thin films of the different preparations were spread on quartz plates and irradiated with a solar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ce1b8c1b0d4cb96e6ce0ac9440a10e7
https://doi.org/10.1111/j.1467-2494.1988.tb00002.x
https://doi.org/10.1111/j.1467-2494.1988.tb00002.x
Publikováno v:
Photochemistry and Photobiology. 38:161-168
— The variation with temperature, pH and light of the ESR signal of hydrated melanin powders from Japanese black hair has been studied. An explanation of the results is proposed on the basis of quinhydrone type complexes and of acid-base equilibria
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d6b1b503daad178cf785cb2a367e266
https://doi.org/10.1111/j.1751-1097.1983.tb03857.x
https://doi.org/10.1111/j.1751-1097.1983.tb03857.x
Publikováno v:
Journal of Photochemistry. 30:215-227
The benzophenone- and acetophenone-photosensitized E—Z isomerization of benzylidene camphor (BC) and p-trimethylammoniobenzylidene camphor methylsulphate was studied quantitatively. Initial sensitized quantum yields and concentrations of both isome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::393d4e8bdb384698be85a2aa8a6c66ce
https://doi.org/10.1016/0047-2670(85)85026-7
https://doi.org/10.1016/0047-2670(85)85026-7
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 44:93-98
The photodecarboxylation of 2-(2′-carboxymethoxy-5′-methylphenyl)-benzotriazole was investigated under direct excitation in various solvents. This reaction leads cleanly to 2-(2′-methoxy-5′-methylphenyl)-benzotriazole which is phototransforme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c01a0c56c93dc3db1e6f2dabc2a9cfba
https://doi.org/10.1016/1010-6030(88)85008-1
https://doi.org/10.1016/1010-6030(88)85008-1