Zobrazeno 1 - 10
of 64
pro vyhledávání: '"CARLA EIRAS"'
Autor:
José Regilmar Teixeira da Silva, Iranildo Costa Araújo, Eziel Cardoso da Silva, Moisés das Virgens Santana, Geanderson Emilio de Almeida, Emanuel Airton de Oliveira Farias, Laís Ramos Monteiro de Lima, Regina Célia Monteiro de Paula, Durcilene Alves da Silva, Alyne Rodrigues Araújo, Carla Eiras
Publikováno v:
Polímeros, Vol 34, Iss 1 (2024)
Abstract Amburana cearensis tree is used in various applications, from artisanal to pharmaceutical use. However, the gum extracted from its exudate has not yet been investigated. This study aimed to the physicochemical and structural characterization
Externí odkaz:
https://doaj.org/article/e3f89081a11d46319d5bf3ad0f77d410
Autor:
Juliana Coatrini Soares, Maurício Foschini, Carla Eiras, Edgar Aparecido Sanches, Débora Gonçalves
Publikováno v:
Materials Research, Vol 17, Iss 2, Pp 332-337 (2014)
Poly(p-phenylene) (PPP), polypyrrole (PPY), and poly(p-phenylene-pyrrole) (PPP-PPY) films were electrochemically synthesized in acetronitrile by cyclic voltammetry. For comparison purposes, the films were characterized by cyclic voltammetry in a mono
Externí odkaz:
https://doaj.org/article/b49150b2c8ae476caab5637d7c67b3ba
Autor:
Severino Gonçalves de Brito Filho, Marianne Guedes Fernandes, Otemberg Souza Chaves, Maria Célia de Oliveira Chaves, Felipe Bastos Araruna, Carla Eiras, José Roberto de Souza de Almeida Leite, Maria de Fátima Agra, Raimundo Braz-Filho, Maria de Fátima Vanderlei de Souza
Publikováno v:
Química Nova, Vol 37, Iss 4, Pp 603-609 (2014)
Turnera subulata Sm., known as "Chanana" or "flor-do-Guarujá" in Brazilian folklore, is a plant species belonging to the subfamily Turneroideae of family Passifloraceae, which is used for various medicinal purposes in Brazil. The phytochemical study
Externí odkaz:
https://doaj.org/article/5e7c7cc76a254185ba95c1b6f723ccfd
Autor:
Carla Eiras, Ionara Nayana Gomes Passos, Ana Cristina Facundo de Brito, José Ribeiro dos Santos Júnior, Valtencir Zucolotto, Osvaldo N. Oliveira Jr, Igor L. Kitagawa, Carlos J. L. Constantino, Helder Nunes da Cunha
Publikováno v:
Química Nova, Vol 30, Iss 5, Pp 1158-1162 (2007)
In this work we take advantage of the polyelectrolyte character of some Brazilian native gums to fabricate electrically conductive, nanostructured films. The gums Sterculia urens, (caraia), Sterculia striata (chicha) or Anadenanthera macrocarpa Benth
Externí odkaz:
https://doaj.org/article/b6a3831580994564973fd759d97d9d76
Autor:
Maysa F. Zampa, Inês Maria de S. Araújo, José Ribeiro dos Santos Júnior, Valtencir Zucolotto, José Roberto de S. A. Leite, Carla Eiras
Publikováno v:
International Journal of Analytical Chemistry, Vol 2012 (2012)
The antimicrobial peptide dermaseptin 01 (DS 01), from the skin secretion of Phyllomedusa hypochondrialis frogs, was immobilized in nanostructured layered films in conjunction with nickel tetrasulfonated phthalocyanines (NiTsPc), widely used in elect
Externí odkaz:
https://doaj.org/article/9556921e2c294b2788266bc40bc37433
Autor:
Sergio Bitencourt Araújo Barros, Cleide Maria da Silva Leite, Ana Cristina Facundo de Brito, José Ribeiro Dos Santos Júnior, Valtencir Zucolotto, Carla Eiras
Publikováno v:
International Journal of Analytical Chemistry, Vol 2012 (2012)
We take advantage of polyelectrolyte feature exhibited by natural cashew gum (Anacardium occidentale L.) (CG), found in northeast Brazil, to employ it in the formation of electroactive nanocomposites prepared by layer-by-layer (LbL) technique. We use
Externí odkaz:
https://doaj.org/article/423eab2fe2be4d85b13470b8acc0aaef
Autor:
Carla Eiras
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
Nesta tese, estudamos a eletrossíntese de polímeros conjugados eletroluminescentes no azul. Filmes de poli(p-fenileno) (PPP), co-poli(p-fenileno-pirrol) (CPPI) e co-poli(p-fenileno-3-metiltiofeno) (CFMET) foram preparados por voltametria cíclica e
Autor:
Eziel cardoso da Silva, IRANILDO COSTA ARAÚJO, GEANDERSON EMÍLIO DE ALMEIDA, CARLA EIRAS, LÍVIO CÉSAR CUNHA NUNES
Publikováno v:
Anais do III Congresso Brasileiro de Biotecnologia On-line.
Autor:
Micaelly da Silva Oliveira, Diégina Araújo Fernandes, Gisele E. Nunes, Maria de Fátima Vanderlei de Souza, Carla Eiras, Ivan H. Bechtold
Publikováno v:
Brazilian Journal of Physics. 51:1617-1624
We report the layer by layer approach to produce self-assembled films containing tiliroside molecules together with natural cashew gum (Anacardium occidentale L.) and polyallylamine hydrochloride (PAH). The growth of the films was monitored by absorp
Autor:
Kátia Bonfim de Leite Moura Sérvulo, Emanuel Airton de Oliveira Farias, Ana Siqueira do Nascimento Marreiro Teixeira, Paulo Ronaldo Sousa Teixeira, Durcilene Alves da Silva, Carla Eiras, Brandon Ferraz e Sousa
Publikováno v:
Journal of Solid State Electrochemistry. 24:1143-1155
The present work proposes a new electrochemical sulfite biosensor based on babassu mesocarp nanoparticles (BMNPs) immobilized on the surface of a pyrolytic graphite electrode (PGE). The synthesized nanoparticles had a size of 121.5 nm and a zeta pote