Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Vânia C. Graça"'
Autor:
Filipa Mandim, Vânia C. Graça, Ricardo C. Calhelha, Isabel L. F. Machado, Luis F. V. Ferreira, Isabel C.F.R. Ferreira, Paulo F. Santos
Publikováno v:
Molecules, Vol 24, Iss 5, p 863 (2019)
In this work, several benzothiazole-based aminosquaraine dyes, displaying strong absorption within the so-called phototherapeutic window (650–800 nm), were synthesized. The ability, of all the new dyes, to generate singlet oxygen was assessed by de
Externí odkaz:
https://doaj.org/article/2bc05be8054c4da29c6818bb19a99599
Publikováno v:
European Journal of Organic Chemistry. 2021:1979-1988
Autor:
Ricardo C. Calhelha, Isabel C.F.R. Ferreira, Paulo F. Santos, Vânia C. Graça, Lillian Barros, Maria Inês Dias
Publikováno v:
Food & Function. 9:2032-2042
Geranium molle L., commonly known as Dove's-foot Crane's-bill or Dovesfoot Geranium, is an herbaceous plant belonging to the Geraniaceae family. Contrary to many other Geranium species, the bioactivity and the phytochemical composition of G. molle se
Publikováno v:
Dyes and Pigments. 192:109388
An easy synthesis of complex naphthopyran molecules with fused pyrrole and 7 membered lactone systems, using just 3 reactions, including two cascade transformations, is described. These colorless molecules develop an intense red coloration once expos
Autor:
Ricardo C. Calhelha, Luis F. Vieira Ferreira, Isabel Machado, Paulo F. Santos, Vânia C. Graça, Isabel C.F.R. Ferreira, Filipa Mandim
Publikováno v:
Molecules
Volume 24
Issue 5
Molecules, Vol 24, Iss 5, p 863 (2019)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Volume 24
Issue 5
Molecules, Vol 24, Iss 5, p 863 (2019)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
In this work, several benzothiazole-based aminosquaraine dyes, displaying strong absorption within the so-called phototherapeutic window (650&ndash
800 nm), were synthesized. The ability, of all the new dyes, to generate singlet oxygen was asses
800 nm), were synthesized. The ability, of all the new dyes, to generate singlet oxygen was asses
Publikováno v:
Dyes and Pigments. 187:109110
A series of lactone-fused naphthopyrans substituted by electron-donating groups were prepared. While the linkage of these groups to the naphthalene part of the photoactive molecule had little effect on the colour observed after UV exposure, the intro
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
After a period of a certain indifference, in which synthetic compounds were favored, the interest in the study of the biological properties of plants and the active principles responsible for their therapeutic properties has been growing remarkably.
Autor:
Ricardo C. Calhelha, Ana Maria Carvalho, Paulo F. Santos, Lillian Barros, Isabel C.F.R. Ferreira, Maria Inês Dias, Vânia C. Graça, Celestino Santos-Buelga
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Geranium robertianum L. has been used in folk medicine and herbalism practice for the treatment of various conditions, but the study of its bioactivity has been barely addressed. Although its phytochemical composition has received some attention, con
Publikováno v:
Dyes and Pigments. 176:108205
A series of substituted vinylidene-naphthofurans were prepared from 2-naphthols. These compounds show both acido- and photochromism, at room temperature, developing different colorations that can be switched back to the initial uncolored state by the
Autor:
Álvaro F, Magalhães, Vânia C, Graça, Ricardo C, Calhelha, I L, Ferreira Machado, L F Vieira, Ferreira, Isabel C F R, Ferreira, Paulo F, Santos
Publikováno v:
Photochemicalphotobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology. 18(2)
Squaraine dyes have recently attracted interest as potential second generation photosensitizers for photodynamic therapy. Several cationic aminosquaraine dyes bearing benzoselenazole terminal nuclei were synthezised and their cytotoxic activity was t