نتایج جستجو برای: کوپلیمر تری بلاک pcl

تعداد نتایج: 25418  

2015
Shuai Shi Zhaoliang Zhang Zichao Luo Jing Yu Renlong Liang Xingyi Li Hao Chen

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...

Journal: :The Journal of Bone and Joint Surgery. British volume 1998

Journal: :iranian journal of basic medical sciences 0
raheleh safaeijavan department of biology, science and research branch, islamic azad university, tehran, iran masoud soleimani department of hematology, faculty of medical science, tarbiat modares university, tehran, iran adeleh divsalar department of biological sciences, kharazmi university, tehran, iran akram eidi department of biology, science and research branch, islamic azad university, tehran, iran abdolreza ardeshirylajimi department of biology, science and research branch, islamic azad university, tehran, iran stem cell biology department, stem cell technology research center, tehran, iran

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...

Journal: :Chang Gung medical journal 2002
Ching-Jen Wang

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...

2016
Yuanjun Teng Laiwei Guo Meng Wu Tianen Xu Lianggong Zhao Jin Jiang Xiaoyun Sheng Lihu Xu Bo Zhang Ning Ding Yayi Xia

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...

2016
O. I. H. Dimitry N. A. Mansour A. L. G. Saad

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 ...

2016
Tian Zhou Qinglei Dong Yang Shen Wei Wu Haide Wu Xianglin Luo Xiaoling Liao Guixue Wang

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...

ژورنال: :پژوهش های علوم و فناوری چوب و جنگل 2013
محدثه صفارزاده محمد رضا ماستری فراهانی

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 ...

Journal: :SICOT-J 2016
Jonas Jensen Claus Tvedesøe Jan Hendrik Duedal Rölfing Casper Bindzus Foldager Helle Lysdahl David Christian Evar Kraft Muwan Chen Jorgen Baas Dang Quang Svend Le Cody Eric Bünger

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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