Zobrazeno 1 - 10
of 138
pro vyhledávání: '"Shirley Nakagaki"'
Autor:
Omar José de Lima, Denis Talarico de Araújo, Liziane Marçal, Antonio Eduardo Miller Crotti, Guilherme Sippel Machado, Shirley Nakagaki, Emerson Henrique de Faria, Katia Jorge Ciuffi
Publikováno v:
ChemEngineering, Vol 6, Iss 4, p 55 (2022)
In recent decades, the increasing use of pesticides to improve food productivity has led to the release of effluents that contaminate the environment. To prepare a material that may help to treat effluents generated during agricultural practice, we u
Externí odkaz:
https://doaj.org/article/6f932ab768db415486f9412466c5f23b
Autor:
Vannia Cristina dos Santos-Durndell, Tailor Machado Peruzzolo, Geani Maria Ucoski, Luiz Pereira Ramos, Shirley Nakagaki
Publikováno v:
Biofuel Research Journal, Vol 5, Iss 2, Pp 806-812 (2018)
Solid magnetic nanoparticles (magnetite = Mag) composed of Fe3O4 and magnetite coated with silica (Fe3O4/SiO2 = Mag/Si) were prepared from inexpensive starting materials. The catalytic activity of the solids was investigated for palmitic acid esterif
Externí odkaz:
https://doaj.org/article/ec6dd51ac79c4f3386f3914f01acfb5e
Autor:
Kelly A. D. F. Castro, Nuno M. M. Moura, Flávio Figueira, Rosalina I. Ferreira, Mário M. Q. Simões, José A. S. Cavaleiro, M. Amparo F. Faustino, Armando J. D. Silvestre, Carmen S. R. Freire, João P. C. Tomé, Shirley Nakagaki, A. Almeida, M. Graça P. M. S. Neves
Publikováno v:
International Journal of Molecular Sciences, Vol 20, Iss 10, p 2522 (2019)
The post-functionalization of 5,10,15-tris(1-methylpyridinium-4-yl)-20-(pentafluorophenyl)porphyrin tri-iodide, known as a highly efficient photosensitizer (PS) for antimicrobial photodynamic therapy (aPDT), in the presence of 3- or 4-mercaptobenzoic
Externí odkaz:
https://doaj.org/article/957ce0abd3e94bedb1eddb3907f71416
Publikováno v:
Catalysts, Vol 9, Iss 4, p 334 (2019)
The protection of carbonyl groups that produce acetal products is a key reaction in fine chemistry due to the high reactivity of aldehydes and ketones in certain media. This process can be catalyzed by protic or Lewis acids. Since metalloporphyrins o
Externí odkaz:
https://doaj.org/article/9959f5a50c194f4da0f3354a91160788
Autor:
Kelly Aparecida Dias de Freitas Castro, Geani Maria Ucoski, Gabriel Kaetan Baio Ferreira, Shirley Nakagaki
Publikováno v:
Molecules, Vol 18, Iss 6, Pp 7279-7308 (2013)
The synthetic versatility and the potential application of metalloporphyrins (MP) in different fields have aroused researchers’ interest in studying these complexes, in an attempt to mimic biological systems such as cytochrome P-450. Over the last
Externí odkaz:
https://doaj.org/article/6fdd53f9182d4b9bbe71cfeeed59c4e7
Autor:
Fabiano Rosa da Silva, Ricardo José Brugnago, Rafael Marangoni, Claudiney Soares Cordeiro, Shirley Nakagaki, Fernando Wypych, Luiz Pereira Ramos
Publikováno v:
Química Nova, Vol 35, Iss 1, Pp 108-113 (2012)
Sodium bismuthate dihydrate and two species derived from its thermal treatment were investigated as catalysts for soybean oil methanolysis and, regardless of the type of solid used, ester yields always above 76 wt% were obtained. After a single react
Externí odkaz:
https://doaj.org/article/5d603b65cb384fdab1a12c7fa146ba2a
Publikováno v:
Molecules, Vol 23, Iss 11, p 2796 (2018)
Complexes of porphyrins and of other similar tetrapyrrolic macrocycles are extensively explored as catalysts for different chemical processes, and the development of solid catalysts for heterogeneous processes using molecules with the ability to act
Externí odkaz:
https://doaj.org/article/c031ee709a82491f9efd236f6c3f9553
Autor:
Alexandre Cestari, Lilian Rodrigues Avila, Evelisy Cristina Oliveira Nassor, Paula Fabiana dos Santos Pereira, Paulo Sergio Calefi, Katia Jorge Ciuffi, Shirley Nakagaki, Antonio Carlos Pereira Gomes, Eduardo Jose Nassar
Publikováno v:
Materials Research, Vol 12, Iss 2, Pp 139-143 (2009)
Glass ionomer cements are widely employed in dentistry due to their physical, biological and mainly anti-caries properties. Glass ionomers consist of an aluminosilicate glass matrix modified with other elements, and they contain large quantities of f
Externí odkaz:
https://doaj.org/article/2fc34cf9921c43baa01e8575f0b9ae13
Autor:
Kenneth S. Suslick, Daniel P. Bailey, Crystal K. Ingison, Michael Janzen, Margaret E. Kosal, William B. McNamara III, Neal A. Rakow, Avijit Sen, Jeremy J. Weaver, Jennifer B. Wilson, Chen Zhang, Shirley Nakagaki
Publikováno v:
Química Nova, Vol 30, Iss 3, Pp 677-681 (2007)
The development of an array of chemically-responsive dyes on a porous membrane and in its use as a general sensor for odors and volatile organic compounds (VOCs) is reviewed. These colorimetric sensor arrays (CSA) act as an "optoelectronic nose" by u
Externí odkaz:
https://doaj.org/article/1ae924e6d61b4a47a432f8968f9da8f6
Publikováno v:
Química Nova, Vol 29, Iss 5, Pp 1003-1008 (2006)
This review presents studies on methyl coenzyme M reductase, the biological system Factor 430 (F430) and the use of nickel(II) complexes as structural and functional models. The ability of F430 and nickel(II) macrocycle complexes to mediate the reduc
Externí odkaz:
https://doaj.org/article/2239c0d2562045fbb789c32534743901