L Lactic Acid Co Glycolic Acid
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. CELL growth and viability analysis in poli membranes (L-lactic acid-CO-glycolic acid): an in vitro study
RESUMO Objetivo: Esse trabalho avaliou, in vitro, os efeitos biológicos no crescimento e viabilidade celular de fibroblastos em membranas de PLGA com e sem sinvastatina. Materiais e métodos: Foram utilizados dois grupos de membranas reabsorvíveis de polímeros sintéticos: PLGA com sinvastantina e sem sinvastantina, recortadas em formato apropriado para
RGO, Rev. Gaúch. Odontol.. Publicado em: 13/06/2019
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2. Coencapsulation of trans-Dehydrocrotonin and trans-Dehydrocrotonin:hydroxypropyl-β-cyclodextrin into Microparticles
The aim of this study was to develop and characterize poly-ε-caprolactone (PCL) and poly(D,L-lactic-co-glycolic)-acid (PLGA) microparticles containing coencapsulated trans-dehydrocrotonin (t-DCTN) and t-DCTN:hydroxypropyl-β-cyclodextrin inclusion complex (t-DCTN:HP-β-CD), with t-DCTN loaded at concentrations ranging from 11.25 to 45.00 mg. A preformulatio
J. Braz. Chem. Soc.. Publicado em: 2017-08
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3. HPLC-DAD and UV-Vis Spectrophotometric Methods for Methotrexate Assay in Different Biodegradable Microparticles
The challenge of the present work concerned the development and validation of high performance liquid chromatography (HPLC) and UV-Vis spectrophotometric methods for quantitation of methotrexate (MTX) loaded on biodegradable microparticles, composed of copolymers with different solubilities such as chitosan and poly (lactic-co-glycolic acid) (PLGA). The line
J. Braz. Chem. Soc.. Publicado em: 2015-04
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4. HPLC-FLD method for itraconazole quantification in poly lactic-co-glycolic acid nanoparticles, plasma and tissue
Itraconazol, um antifúngico de amplo espectro, possui muitos efeitos colaterais e o uso de nanossistemas para a entrega de fármacos tem sido proposto como um método para otimizar a farmacocinética da droga e reduzir os efeitos colaterais. Um procedimento de cromatografia líquida de alta performance (HPLC) utilizando detecção fluorimétrica foi desenvo
J. Braz. Chem. Soc.. Publicado em: 2014-04
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5. Effect of salt leaching on PCL and PLGA(50/50) resorbable scaffolds
The use of porous bioresorbable scaffolds in the field of tissue engineering represents an alternative for the treatment of lesions and losses of biological tissues. This work evaluates the leaching salt effect of two different processes and polymers. Dense and porous scaffolds were prepared with poly(epson-caprolactone) (PCL) and poly(D,L-lactic acid-co-gly
Materials Research. Publicado em: 2008-03
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6. Cultura de osteoblastos sobre arcabouço da blenda de PCL/PLGA : estudo in vitro e in vivo / Osteoblasts culture on PCL/PLGA blend scaffold : in vintro and in vivo study
A Ciência dos Biomateriais é uma área de conhecimento multidisciplinar e está relacionada a implantes cirúrgicos e dispositivos médicos e odontológicos. Dentre as atuais aplicações dos biomateriais, a utilização de polímeros biorreabsorvíveis como arcabouço (scaffolds) para cultura de células tem se destacado como alternativa para tratamento d
Publicado em: 2008
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7. Stimulation of neurite outgrowth using an electrically conducting polymer
Damage to peripheral nerves often cannot be repaired by the juxtaposition of the severed nerve ends. Surgeons have typically used autologous nerve grafts, which have several drawbacks including the need for multiple surgical procedures and loss of function at the donor site. As an alternative, the use of nerve guidance channels to bridge the gap between seve
The National Academy of Sciences of the USA.
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8. Differentiation of human embryonic stem cells on three-dimensional polymer scaffolds
Human embryonic stem (hES) cells hold promise as an unlimited source of cells for transplantation therapies. However, control of their proliferation and differentiation into complex, viable 3D tissues is challenging. Here we examine the use of biodegradable polymer scaffolds for promoting hES cell growth and differentiation and formation of 3D structures. We
National Academy of Sciences.
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9. Effect of additives on the release of a model protein from PLGA microspheres
The purpose of this study was to investigate the effect of 2 additives, poly(ethylene glycol (PEG) 1000 and 1,2,3-tridecanoyl glycerol (tricaprin), on the physico-chemical characteristics and in vitro release of a model protein, bovine serum albumin (BSA), form poly(D,L-lactic-co-glycolic acid) (PLGA) microspheres. BSA-loaded microspheres were prepared by th
Springer-Verlag.
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10. Nanoprecipitation versus emulsion-based techniques for the encapsulation of proteins into biodegradable nanoparticles and process-related stability issues
The goal of this study was to investigate the entrapment of 3 different model proteins (tetanus toxoid, lysozyme, and insulin) into poly(D,L-lactic acid) and poly(D,L-lactic-co-glycolic acid) nanoparticles and to address process-related stability issues. For that purpose, a modified nanoprecipitation method as well as 2 emulsion-based encapsulation technique
Springer-Verlag.
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11. Identification of chemically modified peptide from poly(D,L-lactide-co-glycolide) microspheres under in vitro release conditions
The purpose of this research was to study the chemical reactivity of a somatostatin analogue octreotide acetate, formulated in microspheres with polymers of varying molecular weight and co-monomer ratio under in vitro testing conditions. Poly(D,L-lactide-co-glycolide) (PLGA) and poly(D,L-lactide) (PLA) microspheres were prepared by a solvent extraction/evapo
Springer-Verlag.