Porphyrins And Phthalocyanines
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Síntese e caracterização de heteropentâmeros formados por cobaltoftalocianina e cobaltotetrafenilporfirina
Metalloporphyrins and metalophthalocyanines assemblies have attracted in the last few decades. The syntheses of face to face systems containing porphyrins or phthalocyanines can found in literature, however few works reported these arrangements in mixed systems. A new system composed by cobaltophthalocyanine (CoPc) and cobaltotetraphenylporphyrin (CoTPP) ass
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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2. Estudos fotofísicos, fotoquímicos e fotobiológicos de porfirinas e ftalocianinas derivadas de éter de coroa / Photophisical, photochemistry and Photobiological studies of porphyrins and phtalocyanine crow-ether derivatives
A TFD está baseada no uso de um fármaco fotossensível que, uma vez ativado por luz visível e na presença do oxigênio, induz a produção de espécies reativas de oxigênio tais como o radical peroxila, o ânion radical superóxido e o radical hidroxila (Tipo I) ou oxigênio singlete (Tipo II), que atuam diretamente sobre os sistemas biológicos, induzi
Publicado em: 2007
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3. Synthesis and properties of supermolecular meso tetra(pyridyl)porphyrins and its layer-by-layer electrostatic assembled nanomaterials / Obtenção e propriedades de meso tetra(piridil)porfirinas supermoleculares e dos nanomateriais obtidos por montagem eletrostática camada por camada
A new series of nonplanar supermolecular metalloporphyrins have been obtained by coordenative self-assembly of meso-tetra(3-pyridyl)porphyrins and ruthenium complexes such as [Ru(bipy)2Cl]+ and [Ru(bipy)2(OH2)]2+. The electronic and structural properties have been investigated by electronic spectroscopy, mass spectrometry, cyclic voltammetry, and spectroelec
Publicado em: 2005
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4. Intercalation compounds involving inorganic layered structures
Two-dimensional inorganic networks can shown intracrystalline reactivity, i.e., simple ions, large species as Keggin ions, organic species, coordination compounds or organometallics can be incorporated in the interlayer region. The host-guest interaction usually causes changes in their chemical, catalytic, electronic and optical properties. The isolation of
Anais da Academia Brasileira de Ciências. Publicado em: 2000-03
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5. Inhibition of protease-resistant prion protein formation by porphyrins and phthalocyanines
A central aspect of pathogenesis in the transmissible spongiform encephalopathies or prion diseases is the conversion of normal protease-sensitive prion protein (PrP-sen) to the abnormal protease-resistant form, PrP-res. Here we identify porphyrins and phthalocyanines as inhibitors of PrP-res accumulation. The most potent of these tetrapyrroles had IC50 valu
National Academy of Sciences.