نتایج جستجو برای: کوپلیمر تری بلاک pcl
تعداد نتایج: 25418 فیلتر نتایج به سال:
This study aimed to develop a cationic nanosuspension of chitosan (CS) and methoxy poly(ethylene glycol)-poly(ε-caprolactone) (MPEG-PCL) for ocular delivery of diclofenac (DIC). MPEG-PCL-CS block polymer was synthesized by covalent coupling of MPEG-PCL with CS. The critical micelle concentration of the MPEG-PCL-CS block polymer was 0.000692 g/L. DIC/MPEG-PCL-CS nanosuspension (mean particle siz...
objective(s):cardiomyocytes have small potentials for renovation and proliferation in adult life. the most challenging goal in the field of cardiovascular tissue engineering is the creation of an engineered heart muscle. tissue engineering with a combination of stem cells and nanofibrous scaffolds has attracted interest with regard to cardiomyocyte creation applications. human adipose-derived s...
Unlike anterior cruciate ligament (ACL) injury, disability from isolated posterior cruciate ligament (PCL) injury varies from no interference with life style to severe impairment of daily activities. Therefore, management of isolated PCL injuries remains controversial. High-energy vehicular accidents often cause more-serious PCL injuries, while less-severe injuries result from low-energy trauma...
BACKGROUND Consistent reference data used for anatomic posterior cruciate ligament (PCL) reconstruction is not well defined. Quantitative guidelines defining the location of PCL attachment would aid in performing anatomic PCL reconstruction. The purpose was to characterize anatomic parameters of the PCL tibial attachment based on magnetic resonance imaging (MRI) in a large population of adult k...
Natural sodium montmorillonite (NaMMT), Cloisite Na+ and two organophilic montmorillonites (OMMTs), Cloisites 20A and 15A were used. Polycaprolactone (PCL)/MMT composites containing 1, 3, 5, and 10 wt% of Cloisite Na+ and PCL/OMMT nanocomposites containing 5 and 10 wt% of Cloisites 20A and 15A were prepared via solution intercalation technique to study the influence of organic modifier loading ...
Micro/nanoparticles could cause adverse effects on cardiovascular system and increase the risk for cardiovascular disease-related events. Nanoparticles prepared from poly(ethylene glycol) (PEG)-b-poly(ε-caprolactone) (PCL), namely PEG-b-PCL, a widely studied biodegradable copolymer, are promising carriers for the drug delivery systems. However, it is unknown whether polymeric PEG-b-PCL nano-mic...
In this study, the relation between the permeation properties and structural characteristics of thermoplastic polyurethane based on polycaprolactone diol, TPU(PCL), and polycaprolactone (PCL) blends is investigated. for the purpsoes of this study, PU, PCL, and TPU/PCL blends containing 20 wt.% and 40 wt.% PCL were prepared via a solution blending method. The miscibility and good distribution of...
در این مطالعه، مقاومت به پوسیدگی فرآورده چندسازه صنعتی آرد سرشاخه پسته- کوپلیمر پلیپروپیلن در برابر قارچ مولد پوسیدگی سفید trametes versicolor و قارچ مولد پوسیدگی قهوهای puteana coniophora بررسی گردید. نمونههای فرآورده چندسازه با و بدون رنگ دانه محتوی 60 درصد آرد سرشاخه پسته در معرض آزمون پوسیدگی، مطابق با استاندارد astmd 1413 به مدت 3 ماه قرار گرفتند. نتایج نشان دادند که فرآورده چندسازه ...
INTRODUCTION The osteogenic differentiation of bone marrow-derived mesenchymal stromal cells (BMSCs) was compared with that of dental pulp-derived stromal cells (DPSCs) in vitro and in a pig calvaria critical-size bone defect model. METHODS BMSCs and DPSCs were extracted from the tibia bone marrow and the molar teeth of each pig, respectively. BMSCs and DPSCs were cultured in monolayer and on...
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