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Mostrando ítems 31-40 de 148
Síntese e caracterização de nanopartículas magnéticas funcionalizadas com núcleo magnético de magnetita
(Universidade Federal de Minas GeraisUFMG, 2009-07-01)
Magnetic nanoparticles coated with silica have been subjected of extensive, and, in many aspects, also intensive investigations because of their potential application in different technological fields, particularly in ...
Síntesis solvotermal de nanopartículas de Zn, Fe y Ag encapsulados en matriz de Capsaicina-PVA-Quitosano para su potencial uso en fungicidas orgánicos
(2019-09-30)
For this research, the nanoparticles were obtained adding Zn-Ag nanoparticle precursors with addition of iron nanoparticles previously synthesized by chemical coprecipitation, into a solvothermal reactor. The nanoparticles ...
Characterization of Atrazine-Loaded Biodegradable Poly(Hydroxybutyrate-Co-Hydroxyvalerate) Microspheres
(Springer/plenum Publishers, 2010-03-01)
Polyhydroxybutyrate-co-hydroxyvalerate microspheres (PHBV-MS) were prepared as a delivery system for the herbicide atrazine (ATZ). Characterization of the system included investigation of in vitro release properties and ...
Development and in vitro evaluation of lyotropic liquid crystals for the controlled release of dexamethasone
(2017-08-02)
In this study, amphiphilic polymers were investigated as biomaterials that can control dexamethasone (DXM) release. Such materials present interfacial properties in the presence of water and an oily phase that can result ...
Alginate-Based Delivery Systems for Bevacizumab Local Therapy: In Vitro Structural Features and Release Properties
(2019-04-01)
Alginate-based polyelectrolyte complexes (PECs) and hydrogel were engineered as platforms for local bevacizumab (BVZ) therapy. This study provides deep comprehension on the microstructures of such systems, and their ...
The impact of P/Ca molar ratio on physicochemical and release properties of calcium polyphosphate coacervates
(2021-05-01)
This paper reports on the synthesis and characterization of gel-like calcium polyphosphate coacervates (Ca–PPCs) with three different [P]:[Ca] ratios as new matrixes for drug release. Caffeine and chlorhexidine were used ...
Torrefied banana tree fiber pellets having embedded urea for agricultural use
(2018-01-01)
Banana tree fibers (BF) torrefied in the absence of air and residence time of 60 min at temperatures between 180 and 600 ∘C were evaluated for its agglutination power when converted to pellets. The agglutination power was ...
Mucoadhesive beads of gellan gum/pectin intended to controlled delivery of drugs
(Elsevier B.V., 2014-11-26)
Gellan gum/pectin beads were prepared by ionotropic gelation, using Al3+ as crosslinker. High yield (92.76%) and entrapment efficiency (52.22-88.78%) were reached. Beads exhibited high circularity (0.730-0.849) and size ...
Characterization of Atrazine-Loaded Biodegradable Poly(Hydroxybutyrate-Co-Hydroxyvalerate) Microspheres
(Springer/plenum Publishers, 2010-03-01)
Polyhydroxybutyrate-co-hydroxyvalerate microspheres (PHBV-MS) were prepared as a delivery system for the herbicide atrazine (ATZ). Characterization of the system included investigation of in vitro release properties and ...