Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados BJPS (2) Autor Ray,Sarbani Dey (2) Ghosal,Kajal (1) Saha,Avik Kumar (1) Palavra-chave Alginate beads/evaluation (1) Alginate beads/preparation (1) Beads/characterization (1) Beads/release kinetics (1) Case II transport (1) Direct fitting (1) Drugs/release particulate systems (1) Drugs/release profile (1) Drugs/sustained release (1) Hydroxypropyl methylcellulose stearoxy ether (1) Interpenetrating network (1) Ionotropic gelation (1) Sodium alginate (1) Sodium diclofenac/microsphere (1) Sodium diclofenac/sustained release (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2013 (1) 2011 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Alginate/hydrophobic HPMC (60M) particulate systems: new matrix for site-specific and controlled drug delivery BJPS Ghosal,Kajal; Ray,Sarbani Dey. This study aimed to obtain site-specific and controlled drug release particulate systems. Some particulates were prepared using different concentrations of sodium alginate (Na-Alg) alone and others were formulated using different proportions of Na-Alg with hydroxypropyl methylcellulose (HPMC) stearoxy ether (60M viscosity grade), a hydrophobic form of conventional HPMC, using diclofenac potassium (DP) by ion-exchange methods. Beads were characterized by encapsulation efficiency, release profile, swelling, and erosion rate. The suitability of common empirical (zero-order, first-order and Higuchi) and semi-empirical (Ritger-Peppas and Peppas-Sahlin) models was studied to describe the drug release profile. The Weibull model was also studied. Models were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Drugs/release particulate systems; Drugs/release profile; Hydroxypropyl methylcellulose stearoxy ether; Sodium alginate; Direct fitting; Case II transport; Beads/characterization; Beads/release kinetics. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502011000400021 Effect of cross-linked biodegradable polymers on sustained release of sodium diclofenac-loaded microspheres BJPS Saha,Avik Kumar; Ray,Sarbani Dey. The objective of this study was to formulate an oral sustained release delivery system of sodium diclofenac(DS) based on sodium alginate (SA) as a hydrophilic carrier in combination with chitosan (CH) and sodium carboxymethyl cellulose (SCMC) as drug release modifiers to overcome the drug-related adverse effects and to improve bioavailability. Microspheres of DS were prepared using an easy method of ionotropic gelation. The prepared beads were evaluated for mean particle size, entrapment efficiency, swelling capacity, erosion and in-vitro drug release. They were also subjected to various studies such as Fourier Transform Infra-Red Spectroscopy (FTIR) for drug polymer compatibility, Scanning Electron Microscopy for surface morphology, X-ray Powder... Tipo: Info:eu-repo/semantics/article Palavras-chave: Alginate beads/preparation; Alginate beads/evaluation; Drugs/sustained release; Interpenetrating network; Sodium diclofenac/microsphere; Sodium diclofenac/sustained release; Ionotropic gelation. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502013000400028 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco