نتایج جستجو برای: کوپلیمر تری بلاک pcl

تعداد نتایج: 25418  

Journal: :journal of paramedical 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, tarbiatmodares 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 stem cell biology, stem cell technology research center, tehran, iran.

scaffold design has pivotal role in tissue engineering. in the present study, we modified the surface of electrospun poly(caprolactone) (pcl) nanofibers to improve their compatibility with living medium and to show the potential application of pcl nanofibers as a artificial extracellular matrix using in tissue-engineering. pcl nanofibers were fabricated by electrospinning method. to graft gelat...

2016
Jue Hu Lingling Tian Molamma P. Prabhakaran Xin Ding Seeram Ramakrishna Esmaiel Jabbari

Peripheral nerve injury is a serious clinical problem to be solved. There has been no breakthrough so far and neural tissue engineering offers a promising approach to promote the regeneration of peripheral neural injuries. In this study, emulsion electrospinning technique was introduced as a flexible and promising technique for the fabrication of random (R) and aligned (A) Poly(ε-caprolactone) ...

Journal: :Colloids and surfaces. B, Biointerfaces 2014
M Fatih Canbolat Asli Celebioglu Tamer Uyar

In this study, we select naproxen (NAP) as a reference drug and electrospun poly (ɛ-caprolactone) (PCL) nanofibers as a fibrous matrix for our drug-delivery system. NAP was complexed with beta-cyclodextrin (βCD) to form inclusion complex (NAP-βCD-IC) and then NAP-βCD-IC was incorporated into PCL nanofibers via electrospinning. The incorporation of NAP without CD-IC into electrospun PCL was also...

Khalid Saeed, Soo -Young Park

Polycaprolactone (PCL) and poly(butylene terephthalate) (PBT) blend was prepared by melt processing. The PCL/PBT blend showed similar morphology with that of pure PCL.The crystallization temperature of PCL was increased by the incorporation of PBT. It was also observed that the peak height in the DSC thermograms decreased and then disappeared by adding 40 % or more PBT which might be due to...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه پلیمر و پتروشیمی ایران - پژوهشکده علوم 1390

در این تحقیق یک کوپلیمرآکریلاتی (پلی(بوتیل متاکریلات -کو- (2- دی متیل آمینو اتیل متاکریلات)- کو- متیل متاکریلات))به عنوان پلیمر پایه درساخت یک چسب پایه حلالی استفاده شد. از مخلوطی از استون، اتانول و پروپانول به عنوان حلال و به منظور بهبود خواص چسبندگی ، از نرم کننده ها و شبکه ای کننده های مختلفی استفاده شد. نرم کننده ها شامل تری اتیل سیترات، اولئیک اسید و پروپیلن گلیکول بود. از سه دی کربوکسیلیک...

2013
H. S. Barud S. J. L. Ribeiro R. Ligabue Sandra Einloft

Optically transparent membranes from bacterial cellulose (BC)/polycaprolactone (PCL) have been prepared by impregnation of PCL acetone solution into dried BC membranes. UV-Vis measurements showed an increase on transparency in BC/PCL membrane when compared with pristine BC. The good transparency of the BC/PCL can be related to the presence of BC nanofibers associated with deposit of PCL nano-si...

Journal: :Acta biomaterialia 2013
Shilpa Sant Dharini Iyer Akhilesh K Gaharwar Alpesh Patel Ali Khademhosseini

The development of living heart valves that grow with the patient is a promising strategy for heart valve replacements in pediatric patients. Despite active research in the field of tissue engineered heart valves there have been limited efforts to optimize the balance between biodegradation of the scaffolds and de novo extracellular matrix (ECM) synthesis by cells and study their consequences o...

2015
Ryan Holliday Julia Smith Carol North Alina Surís

The widely used posttraumatic stress disorder (PTSD) Checklist (PCL) has established reliability and validity, but it does not differentiate posttraumatic symptom frequency from intensity as elements of posttraumatic symptom severity. Thus, the PCL in its existing form may not provide a comprehensive appraisal of posttraumatic symptomatology. Because of this, we modified the PCL to create the P...

ژورنال: :فصلنامه علمی- ترویجی بسپارش 2015
محمد رضوی نوری مسعود طایفی علیرضا ثابت

به سبب بهبود خواص فیزیکی و مکانیکی مانند پایداری حرارتی، استحکام کششی و ممانعت در برابر نفوذ، نسبت به پلیمر خالص، تمایل زیادی برای استفاده از نانوکامپوزیت های پلیمر و نانوخاک رس وجود دارد. در چند دهه گذشته، کارایی نانوکامپوزیت های تهیه شده برپایه پلی اتیلن و نانوخاک رس در صنایع حمل و نقل، سیم و کابل، بسته بندی مواد غذایی و ساختمان منجر به استفاده گسترده از آنها شده است. البته ماهیت آب دوست نانو...

2014
Solaiman Tarafder Susmita Bose

The aim of this work was to evaluate the effect of in vitro alendronate (AD) release behavior through polycaprolactone (PCL) coating on in vivo bone formation using PCL-coated 3D printed interconnected porous tricalcium phosphate (TCP) scaffolds. Higher AD and Ca(2+) ion release was observed at lower pH (5.0) than that at higher pH (7.4). AD and Ca(2+) release, surface morphology, and phase ana...

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