Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Carolina Vautier-Giongo"'
Autor:
Frank H. Quina, Adilson A. Freitas, Rita Rodrigues, Palmira Ferreira da Silva, Carolina Vautier-Giongo, Paulo F. Moreira, Daniel Rettori, António L. Maçanita
Publikováno v:
Pure and Applied Chemistry. 81:1687-1694
Anthocyanins, the major red, purple, and blue pigments of plants, absorb visible as well as UV radiation and are effective antioxidants and scavengers of active oxygen species. In plant leaves, one of the functional roles proposed for anthocyanins is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3a01b16506291826ee7f232f31473c6
https://doi.org/10.1351/pac-con-08-09-28
https://doi.org/10.1351/pac-con-08-09-28
Autor:
Palmira Ferreira da Silva, Carolina Vautier-Giongo, and António L. Maçanita, Ana C. Fernandes, Rita C. L. B. Rodrigues, Rui Vogt Alves da Cruz, Frank H. Quina
Publikováno v:
Langmuir. 22:933-940
The functionalized flavylium salt 6-hexyl-7-hydroxy-4-methyflavylium chloride (HHMF) was employed to probe some of the fundamental features of proton transfer reactions at the surface of anionic sodium dodecyl sulfate (SDS) and cationic hexadecyltrim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67d230a2973bd6c52b8e42a7d54c4c19
https://doi.org/10.1021/la0522911
https://doi.org/10.1021/la0522911
Autor:
Mandeep Singh Bakshi, Carolina Vautier-Giongo, Barney L. Bales, Radha Ranganathan, Joseph Hajdu
Publikováno v:
Chemistry and Physics of Lipids. 135:93-104
Mixed micelles of l,2-diheptanoyl-sn-grycero-3-phosphocholine (DHPC) with ionic detergents were prepared to develop well characterized substrates for the study of lipolytic enzymes. The aggregates that formed on mixing DHPC with the anionic surfactan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81b96a054ff286426937721c502ad3a3
https://doi.org/10.1016/j.chemphyslip.2005.02.004
https://doi.org/10.1016/j.chemphyslip.2005.02.004
Autor:
Jasmeet Singh, Barney L. Bales, Mandeep Singh Bakshi, Carolina Vautier-Giongo, Radha Ranganathan, Joseph Hajdu
Publikováno v:
Journal of Colloid and Interface Science. 282:149-155
Mixed micelles of the phospholipid 1,2-diheptanoyl-sn-glycero-3-phosphocholine (DHPC) with sodium dodecyl sulfate (SDS) or dodecyltrimethylammonium bromide (DTAB) in aqueous solutions and the effects of interactions between the components were studie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1f4ae45603a3a7a7c198ef8fccf531a
https://doi.org/10.1016/j.jcis.2004.08.071
https://doi.org/10.1016/j.jcis.2004.08.071
Publikováno v:
The Journal of Physical Chemistry B. 107:10312-10318
The simple hydrodynamic description of bimolecular collision rate constants afforded by the Stokes−Einstein−Smoluchowski (SES) equation is tested in a bulk liquid as well as in sodium dodecyl sulfate micelles. Fluorescence quenching of pyrene by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2ce38dee7388d8c7d1efbbe9ada7958
https://doi.org/10.1021/jp034346i
https://doi.org/10.1021/jp034346i
Publikováno v:
The Journal of Physical Chemistry B. 107:5398-5403
The Krafft temperature, TK, of two classical ionic surfactants, sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB), were measured by conductivity, in the absence and in the presence of added salt, to test a recent suggestion (J. P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d69ae89f2c58613f357a4b64e6483f29
https://doi.org/10.1021/jp0270957
https://doi.org/10.1021/jp0270957
Autor:
António L. Maçanita, Frank H. Quina, Carolina Vautier-Giongo, Letícia Giestas, Chang Yihwa, João C. Lima, Paulo F. Moreira
Publikováno v:
The Journal of Physical Chemistry A. 107:4203-4210
Malvidin-3,5-diglucoside (malvin), cyanidin-3,5-diglucoside (cyanin), and pelargonidin-3,5-diglucoside (pelargonin) are among the most representative anthocyanins because of their abundance in the most common red flowers and fruits. Anthocyanin color
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d35b3f19b1449302a05c18bd7a70c3d
https://doi.org/10.1021/jp027260i
https://doi.org/10.1021/jp027260i
Autor:
António L. Maçanita, Letícia Giestas, João C. Lima, Chang Yihwa, Frank H. Quina, Antonio Augusto Lopes, Carolina Vautier-Giongo
Publikováno v:
The Journal of Physical Chemistry A. 107:3263-3269
Fast excited state proton transfer reactions at the surface of anionic sodium dodecyl sulfate (SDS) micelles have been investigated using the photoacid 4-methyl-7-hydroxyflavylium (HMF) chloride as probe. The acid-base kinetics of excited HMF are str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1622716e0bd2d48ea93cab16961d0122
https://doi.org/10.1021/jp0265900
https://doi.org/10.1021/jp0265900
Autor:
Paulo F. Moreira, António L. Maçanita, Adilson A. Freitas, Chang Yihwa, Marilene Bargas Rodrigues Alves, Frank H. Quina, João C. Lima, Carolina Vautier-Giongo
Publikováno v:
Langmuir. 18:10109-10115
The effects of anionic, cationic, and nonionic micelles on the dynamics of proton transfer in the ground and excited state of anthocyanins have been examined employing the 4-methyl-7-hydroxyflavylium ion (HMF) as a model compound. Unlike other anthoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77353e26b2409e53861c163688fc773d
https://doi.org/10.1021/la026336z
https://doi.org/10.1021/la026336z
Autor:
Eurico Melo, António Lopes, António L. Maçanita, Frank H. Quina, João C. Lima, Carolina Vautier-Giongo
Publikováno v:
The Journal of Physical Chemistry A. 106:5851-5859
The origin of the substantial stabilization of the color of the natural anthocyanin malvidin-3-glucosyl chloride (Oenin) in aqueous micellar SDS solutions has been elucidated by employing laser flash photolysis and pH-jump techniques to determine all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::735f290fea5aa2f8f8b65242e630a927
https://doi.org/10.1021/jp014081c
https://doi.org/10.1021/jp014081c