نتایج جستجو برای: pcl nanofibers

تعداد نتایج: 10787  

2017
Y. Márquez J. Graupera L. J. del Valle P. Turon L. Franco J. Puiggalí

Poly(ε-caprolactone) (PCL) films reinforced with polylactide (PLA) microfibers were prepared by two methodologies: a) melt pressing of an electrospun PLA mat between two PCL films, and b) melt pressing of a co-electrospun mat composed of PLA microfibers and PCL nanofibers. Electrospinning conditions were selected for each polymer to obtain films loaded with 10, 20 and 30 wt% of PLA. Thermal and...

Wound dressing applications of nanofibers is a progressive filed of research which could be enhanced by using medicinal plant extract to bring some more advantages. Here we optimized the electrospinning method for fabrication of polycaprolactone-gelatin mixed with a medicinal plant extract, calendula offlcinalis. Characterization techniques including Fourier-transform infrared spectroscopy (FTI...

2014
Si-Eun Kim Jia Wang Alex M. Jordan LaShanda T. J. Korley Eric Baer Jonathan K. Pokorski

A photochemical modification of melt-extruded polymeric nanofibers is described. A bioorthogonal functional group is used to decorate fibers made exclusively from commodity polymers, covalently attach fluorophores and peptides, and direct cell growth. Our process begins by using a layered coextrusion method, where poly(ε-caprolactone) (PCL) nanofibers are incorporated within a macroscopic poly(...

2017
B. Komur F. Bayrak N. Ekren M. S. Eroglu F. N. Oktar Z. A. Sinirlioglu S. Yucel O. Guler O. Gunduz

BACKGROUND In this study, starch and polycaprolactone (PCL), composite nanofibers were fabricated by co-axial needle electrospinning technique. Processing parameters such as polymer concentration, flow rate and voltage had a marked influence on the composite fiber diameter. Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), mechanical and physical properties (such as d...

Journal: :Colloids and surfaces. B, Biointerfaces 2015
Zeynep Aytac Huseyin Sener Sen Engin Durgun Tamer Uyar

Herein, hydroxypropyl-beta-cyclodextrin (HPβCD) inclusion complex (IC) of a hydrophobic drug, sulfisoxazole (SFS) was incorporated in hydroxypropyl cellulose (HPC) nanofibers (HPC/SFS/HPβCD-IC-NF) via electrospinning. SFS/HPβCD-IC was characterized by DSC to investigate the formation of inclusion complex and the stoichiometry of the complex was determined by Job's plot. Modeling studies were al...

Journal: :Advanced composites and hybrid materials 2022

The most widely used one-dimensional (1D) carbonaceous nanomaterials in tissue engineering are carbon nanotubes, either single or multiwalled. Other forms of 1D nanomaterials, such as nanowires and nanofibers, have been less explored for biomedical applications. Herein, we synthesized 1D-activated nanofiber nanoparticles (ACNF NPs) from the polyacrylonitrile electrospun nanofibers by continuous...

2011
Shweta Sharma Sujata Mohanty Deepika Gupta Manjeet Jassal Ashwini K. Agrawal Radhika Tandon

PURPOSE The aim of this study was to develop a synthetic stromal substrate for limbal epithelial cell (LEC) expansion that can serve as a potential alternative substrate to replace human amniotic membrane (HAM). METHODS Nanofibers were fabricated using 10% poly-ε-caprolactone (PCL) solution dissolved in trifluoroethanol (TFE) via an electrospinning process. Nanofibers were characterized for s...

2013
Mandula Borjigin Chris Eskridge Rohina Niamat Bryan Strouse Pawel Bialk Eric B Kmiec

Polycaprolactone (PCL) and its blended composites (chitosan, gelatin, and lecithin) are well-established biomaterials that can enrich cell growth and enable tissue engineering. However, their application in the recovery and proliferation of genetically modified cells has not been studied. In the study reported here, we fabricated PCL-biomaterial blended fiber membranes, characterized them using...

Journal: :Polymer Bulletin 2023

Abstract The electrospinning process was used to successfully encapsulate an anticancer drug, 5-fluorouracil (5-FU), into poly(ε-caprolactone)/gelatin (Gel) nanofiber mats (5-FU-PCL/Gel NFs). Nanofibers are recognized be potential carriers for the delivery of drugs. One safest solvent systems making PCL/Gel NF is formic acid/acetic acid (FA/AA) system. A compound solution jet drawn from a custo...

Atena Shapourzadeh, Hadi Bakhshi, Seyed Mohammad Atyabi, Shiva Irani,

Background: Through combining two synthetic and natural polymers, scaffolds can be developed for tissue engineering and regenerative medicine purposes. Methods: In this work, carboxymethyl chitosan (CMC; 20%) was grafted to Polycaprolactone (PCL) nanofibers using the cold atmospheric plasma of helium. The PCL scaffolds were exposed to CAP, and functional groups were developed on the PCL surface...

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