نتایج جستجو برای: nifedipine polycaprolactone pcl

تعداد نتایج: 9362  

2016
Nils Jürgensen Johannes Zimmermann Anthony John Morfa Gerardo Hernandez-Sosa

In this work, we demonstrate the use of the biodegradable polymer polycaprolactone (PCL) as the ion solvating polymer in solution-processed light-emitting electrochemical cells (LEC). We show that the inclusion of PCL in the active layer yields higher ionic conductivities and thus contributes to a rapid formation of the dynamic p-i-n junction and reduction of operating voltages. PCL shows no ph...

2012
Mónica Faria Vítor Geraldes Maria Norberta de Pinho

Asymmetric bi-soft segment poly(ester urethane urea) (PEUU) membranes containing polycaprolactone (PCL) as a second soft segment are synthesized with PCL-diol ranging from 0% to 15% (w/w). Bulk and surface characteristics of the PEUU membranes were investigated by scanning electron microscopy (SEM), static water contact angles, and surface streaming potentials and were correlated to hemocompati...

2013
Han-Tsung Liao Jyh-Ping Chen Ming-Yih Lee

Three-dimensional porous polycaprolactone (PCL) scaffolds with consistent inter-pore channels, 83% porosity and 300-400 μm pore size were fabricated via selective laser sintering. The PCL scaffold was combined with platelet-rich plasma (PRP) to form a bioactive composite and studied for potential application in bone tissue engineering using porcine adipose-derived stem cells (PASCs). The PCL/PR...

2017
Ho Hieu Minh Nguyen Thi Hiep Nguyen Dai Hai Vo Van Toi

Polycaprolactone/polyurethane (PCL/PU) fibrous scaffold was loaded with conjugated linoleic acid (CLA) by electrospinning method to improve the hemocompatibility of the polymeric surface. Fourier Transform Infrared Spectroscopy (FT-IR) analysis and Scanning Electron Microscopy (SEM) observation were employed to characterize the chemical structure and the changing morphology of electrospun PCL/P...

2018
Ho Song Yu Jinju Park Hyun Suk Lee Su A Park Dong Weon Lee Kwangsung Park

PURPOSE To investigate the feasibility of a polycaprolactone (PCL) scaffold fabricated by three-dimensional (3D) printing for tissue engineering applications for tunica albuginea. MATERIALS AND METHODS PCL scaffolds were fabricated by use of a 3D printing system. Two scaffolds were fabricated that differed in the architecture of the lay-down pattern: a 90°PCL scaffold and a 45°PCL scaffold. M...

2008
Benjamin Dinan Narayan Bhattarai Zhensheng Li Miqin Zhang

Polymeric nanofibers that mimic the structure and function of the natural extracellular matrix (ECM) are of great interest in tissue engineering as scaffolding materials to restore, maintain or improve the function of human tissues. Electrospinning has been recently developed as an effective technique for nanofiber fabrication. In our study, the electropsinning method is used to create hybrid n...

2015
Evgeniy Bolbasov Larisa Antonova Vera Matveeva Vadim Novikov Evgeniy Shesterikov Natalia Bogomolova Sergey Tverdohlebov Olga Barbarash Leonid Barbarash

The study is aimed at the assessment of surface modification of bioresorbable polymeric material (polycaprolactone (PLC) by radio-frequency magnetron discharge plasma with hydroxyapatite target sputtering. Plasma surface modification increases its roughness, the surface free energy, hydrophilicity and enhances the growth of PCL crystallites. An increase in plasma exposure times (30, 60, 150 s) ...

2014
LOR HUAI Chong MIM MIM Lim NAZNIN Sultana

Scaffold provides a suitable medium for cell growing and drug delivery while enhancing the cell transplantation efficiency. In this project, nanofibrous scaffolds were fabricated through electrospinning of Polycaprolactone (PCL) and Gelatin (GE). Processing parameters and solution parameters were optimized to achieve the desired properties of PCL/GE nanofibers. Scanning Electron Microscopy (SEM...

Journal: :Medical engineering & physics 2009
Emily Cottam David W L Hukins Kenneth Lee Christopher Hewitt Mike J Jenkins

This paper investigates the effect of sterilisation by gamma irradiation (dose 2.5Mrad) on the following properties of polycaprolactone (PCL): (1) degradation rate (catalysed by lipase), (2) mechanical properties, (3) the ability of cells to attach and subsequently grow on its surface. Gel permeation chromatography (GPC) was used to determine the effects of gamma irradiation of weight average (...

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