نتایج جستجو برای: Nifedipine, Polycaprolactone (PCL)

تعداد نتایج: 9362  

2016
Yinfeng He Ricky D. Wildman Chris J. Tuck Steven D. R. Christie Steven Edmondson

An initial study of processing bioresorbable polycaprolactone (PCL) through material jetting was conducted using a Fujifilm Dimatix DMP-2830 material printer. The aim of this work was to investigate a potential solvent based method of jetting polycaprolactone. Several solvents were used to prepare a PCL solvent based ink and 1, 4-dioxane was chosen with the consideration of both solubility and ...

2013
Abdelhaq Benkaddour Khalil Jradi Sylvain Robert Claude Daneault

The main objective of this work is the grafting of polycaprolactone diol (PCL) on the surface of oxidized nanocelluloses (ONC) in order to enhance the compatibility between the hydrophilic cellulose nanofibres and the hydrophobic polymer matrix. This grafting was successfully realized with a new strategy known as click chemistry. In this context, the oxidized nanocelluloses bearing alkyl groups...

Nifedipine is a hypertension drug must be consumed three times a day due to its low oral bioavailability. One way of developing a controlled drug delivery system is making nifedipine microcapsules by using environmentally friendly polymers of polylactic acid and polycaprolactone via the evaporation method using oil-in-water solvents. Polylactic acid and polycaprolactone can be said to be enviro...

Journal: :Advanced Materials Interfaces 2022

Cellulose–Polycaprolactone Nanocomposites with Lignin Nanoparticles In article number 2200988, Erfan Kimiaei, Monika Österberg, and co-workers demonstrate a smart assembly of hydrophilic cellulose nanofibrils (CNFs) hydrophobic polycaprolactone (PCL) by the aid lignin nanoparticles as interfacial modulator. provide additional noncovalent interactions between components for even dispersion PCL o...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
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 the...

2017
Jin-Hyung Shim Joo-Yun Won Jung-Hyung Park Ji-Hyeon Bae Geunseon Ahn Chang-Hwan Kim Dong-Hyuk Lim Dong-Woo Cho Won-Soo Yun Eun-Bin Bae Chang-Mo Jeong Jung-Bo Huh

This study was conducted to compare 3D-printed polycaprolactone (PCL) and polycaprolactone/β-tricalcium phosphate (PCL/β-TCP) membranes with a conventional commercial collagen membrane in terms of their abilities to facilitate guided bone regeneration (GBR). Fabricated membranes were tested for dry and wet mechanical properties. Fibroblasts and preosteoblasts were seeded into the membranes and ...

2003
Chin-San Wu

The properties of blends of polycaprolactone and starch (PCL/starch) and maleic anhydride (MAH)-grafted-polycaprolactone and starch (PCL-g-MAH/starch) were examined using Fourier transform infrared (FTIR) spectroscopy, H nuclear magnetic resonance (H NMR), differential scanning calorimetry (DSC), and mechanical testing. Mechanical and thermal properties of PCL became noticeably worse when it wa...

2016

Submit Manuscript | http://medcraveonline.com Abbreviations: HPMC: Hydroxypropyl Methylcellulose; MC: Methylcellulose; PLGA: Poly (Lactide-co-Glycolide); CAP: Cellulose Acetate Phthalate; LCST: Low Critical Solution Temperature; UCST: Upper Critical Solution Temperature; PPO: Polypropylene Oxide; PEO: Polyethylene Oxide; MTA: Methozolamide; PNIPAAm: Poly (N-Isopropylacrylamide); GC: Guluronic A...

1998

A binary blend of polycaprolactone and starch in 70:30 weight ratio (known under the tradename “Envar”) was blended in various weight ratios with organosolv lignin (L) and organosolv lignin butyrate (LB) by solvent casting and melt blending. The thermal transitions observed by DSC revealed behavior resembling that of native polycaprolactone (PCL). Depression in melting temperatures obtained by ...

Journal: :Acta biomaterialia 2015
Benjamin S Spearman Alexander J Hodge John L Porter John G Hardy Zenda D Davis Teng Xu Xinyu Zhang Christine E Schmidt Michael C Hamilton Elizabeth A Lipke

UNLABELLED Conductive and electroactive polymers have the potential to enhance engineered cardiac tissue function. In this study, an interpenetrating network of the electrically-conductive polymer polypyrrole (PPy) was grown within a matrix of flexible polycaprolactone (PCL) and evaluated as a platform for directing the formation of functional cardiac cell sheets. PCL films were either treated ...

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