نتایج جستجو برای: electrospun

تعداد نتایج: 5454  

2008
Satyajeet S. Ojha Mehdi Afshari Richard Kotek Russell E. Gorga

In the present study, the morphology and mechanical properties of nylon-6 nanofibers were investigated as a function of molecular weight (30,000, 50,000, and 63,000 g/mol) and electrospinning process conditions (solution concentration, voltage, tip-to-collector distance, and flow rate). Scanning electron micrographs (SEM) of nylon-6 nanofibers showed that the diameter of the electrospun fiber i...

2017
Fanqiao Yang Yingling Miao Yan Wang Li-Ming Zhang Xuefeng Lin

Periodontitis is a widespread dental disease affecting 10 to 15% of worldwide adult population, yet the current treatments are far from satisfactory. The human periodontal ligament stem cell is a promising potential seed cell population type in cell-based therapy and tissue regeneration, which require appropriate scaffold to provide a mimic extracellular matrix. Zein, a native protein derived f...

Journal: :Biomaterials science 2016
Tiago C Reis Steven Castleberry Ana M B Rego Ana Aguiar-Ricardo Paula T Hammond

Electrospun materials are promising scaffolds due to their light-weight, high surface-area and low-cost fabrication, however, such scaffolds are commonly obtained as ultrathin two-dimensional non-woven meshes, lacking on topographical specificity and surface side-dependent properties. Herein, it is reported the production of three-dimensional fibrous materials with an asymmetrical inner structu...

Journal: :ACS applied materials & interfaces 2013
Mariko Ago Joseph E Jakes Orlando J Rojas

We produced defect-free electrospun fibers from aqueous dispersions of lignin, poly(vinyl alcohol) (PVA), and cellulose nanocrystals (CNCs), which were used as reinforcing nanoparticles. The thermomechanical performance of the lignin-based electrospun fibers and the spin-coated thin films was improved when they were embedded with CNCs. Isochronal dynamic mechanical analysis (DMA) was used to as...

Journal: :Macromolecular bioscience 2014
Martina Abrigo Sally L McArthur Peter Kingshott

Chronic non-healing wounds show delayed and incomplete healing processes and in turn expose patients to a high risk of infection. Treatment currently focuses on dressings that prevent microbial infiltration and keep a balanced moisture and gas exchange environment. Antibacterial delivery from dressings has existed for some time, with responsive systems now aiming to trigger release only if infe...

2017
Andrea Kovács Balázs Démuth Andrea Meskó

Furosemide loaded electrospun fibers were prepared for buccal administration, with the aim of improving the oral bioavailability of the poorly soluble and permeable crystalline drug, which can be achieved by the increased solubility and by the circumvention of the intensive first pass metabolism. The water soluble hydroxypropyl cellulose (HPC) was chosen as a mucoadhesive polymer. In order to i...

Journal: :Nanoscale 2013
Tiago C Reis Ilídio J Correia Ana Aguiar-Ricardo

The rational design of three-dimensional electrospun constructs (3DECs) can lead to striking topographies and tailored shapes of electrospun materials. This new generation of materials is suppressing some of the current limitations of the usual 2D non-woven electrospun fiber mats, such as small pore sizes or only flat shaped constructs. Herein, we pursued an explanation for the self-assembly of...

Journal: :Journal of biomedical materials research. Part A 2007
Joseph M Corey David Y Lin Katherine B Mycek Qiaoran Chen Stanley Samuel Eva L Feldman David C Martin

Nerve injury, a significant cause of disability, may be treated more effectively using nerve guidance channels containing longitudinally aligned fibers. Aligned, electrospun nanofibers direct the neurite growth of immortalized neural stem cells, demonstrating potential for directing regenerating neurites. However, no study of neurite guidance on these fibers has yet been performed with primary ...

Journal: :International journal of pharmaceutics 2017
Zehra Irem Yildiz Asli Celebioglu Tamer Uyar

In this study, our aim was to develop solid drug-cyclodextrin inclusion complex system having nanofibrous morphology in order to have fast-dissolving property and enhanced water-solubility of poorly water-soluble drug. Here, we prepared a highly concentrated aqueous solution of inclusion complex between sulfisoxazole and sulfobutyl ether7-beta-cyclodextrin (SBE7-β-CD, Captisol®), and then, with...

2017
Benjamin D.M. Coverdale Julie E. Gough William W. Sampson Judith A. Hoyland

We elucidate the effects of incorporating surfactants into electrospun poly (ɛ-caprolactone) (PCL) scaffolds on network homogeneity, cellular adherence and osteogenic differentiation. Lecithin was added with a range of concentrations to PCL solutions, which were electrospun to yield functionalized scaffolds. Addition of lecithin yielded a dose-dependent reduction in scaffold hydrophobicity, whi...

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