نتایج جستجو برای: polylactide

تعداد نتایج: 1059  

Journal: :Polymer chemistry 2014
Qian Yin Rong Tong Lichen Yin Timothy M Fan Jianjun Cheng

We report a strategy of conjugating CPT to the terminal carboxylate group of polylactide (PLA) with a facile hydrolysable amino ester linker via a controlled polymerization method. The obtained CPT-N-PLA conjugates were able to self-assemble into 50-100 nanometer-sized conjugates (NCs) with desired in vitro physicochemical properties and showed enhanced in vivo therapeutic efficacy against Lewi...

Journal: :Acta orthopaedica Belgica 2008
Peter Lüthje Ilona Nurmi-Lüthje

We present two patients, respectively 14 and 18 years old, who sustained an osteochondral fracture of the weight-bearing part of the lateral femoral condyle, which was treated operatively with biodegradable self-reinforced polylactide rods. The first patient was operated 60 days after the injury, the second one on the third day. The clinical and functional results were good in both cases one ye...

Journal: :Journal of virology 2003
Gillis Otten Mary Schaefer Catherine Greer Maria Calderon-Cacia Doris Coit Jina Kazzaz Angelica Medina-Selby Mark Selby Manmohan Singh Mildred Ugozzoli Jan zur Megede Susan W Barnett Derek O'Hagan John Donnelly Jeffrey Ulmer

Several vaccine technologies were evaluated for their abilities to induce anti-human immunodeficiency virus Gag immune responses in rhesus macaques. While no vaccine alone was able to induce broad and strong immune responses, these were achieved by priming with Gag DNA and boosting with Gag protein adsorbed to polylactide coglycolide microparticles. This regimen elicited strong antibodies, help...

Journal: :Bioresource technology 2012
J D Badia L Santonja-Blasco A Martínez-Felipe A Ribes-Greus

The combustion process of virgin and reprocessed polylactide (PLA) was simulated by multi-rate linear non-isothermal thermogravimetric experiments under O(2). A complete methodology that accounted on the thermal stability and emission of gases was thoroughly developed. A new model, Thermal Decomposition Behavior, and novel parameters, the Zero-Decomposition Temperatures, were used to test the t...

2016
Krzysztof Marycz Monika Marędziak Jakub Grzesiak Dariusz Szarek Anna Lis Jadwiga Laska Jianxun Ding

Polymeric biomaterials based on polyurethane and polylactide blends are promising candidates for regenerative medicine applications as biocompatible, bioresorbable carriers. In current research we showed that 80/20 polyurethane/polylactide blends (PU/PLDL) with confirmed biological properties in vitro may be further improved by the addition of ZnO nanoparticles for the delivery of bioactive zin...

2014
Karim S Shalaby Mahmoud E Soliman Luca Casettari Giulia Bonacucina Marco Cespi Giovanni F Palmieri Omaima A Sammour Abdelhameed A El Shamy

In this study, di- and triblock copolymers based on polyethylene glycol and polylactide were synthesized by ring-opening polymerization and characterized by proton nuclear magnetic resonance and gel permeation chromatography. Nanoparticles containing noscapine were prepared from these biodegradable and biocompatible copolymers using the nanoprecipitation method. The prepared nanoparticles were ...

Journal: :Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA 2014
Junya Yano Yasuhiro Hirai Shin-ichi Sakai Jun Tsubota

The purpose of this study was to quantify the life-cycle greenhouse gas (GHG) emissions reduction that could be achieved by replacement of fossil-derived materials with biodegradable, biomass-based materials for household plastic containers and packaging, considering a variety of their treatment options. The biomass-based materials were 100% polylactide or a combination of polybutylene succinat...

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