نتایج جستجو برای: electrospun
تعداد نتایج: 5454 فیلتر نتایج به سال:
Electrospinning method was used to fabricate poly(L-lactide-co-D,L-lactide) (PLDLA) nanofiber non-woven membranes. The structure and morphology of the electrospun membranes were investigated by a scanning electron microscope (JEOL) after a gold coating. The diameter of the electrospun fiber was measured by Adobe Photoshop 5.0 software from the SEM pictures. SEM images showed that the fiber diam...
The functional properties of six distinct electrospun silk material groups were evaluated to assess conformational and biocompatible characteristics related to wound dressings. In a hydrated state, all six silk matrices exhibited absorption, water vapor transmission, oxygen permeation and enzymatic biodegradation suitable for full-thickness wound sites. Employing constrained drying techniques, ...
Introduction The clinical application of nanotechnology and nanofiber scaffolds especially has been boosted in the last years. Until now no data exist regarding the vascularisation of such electrospun nanofiber scaffolds in vivo, especially not on the necessary duration of prevascularisation which would then mark the best time point for secondary cell implantation. Since this period of vascular...
A biofilm is a group of microorganisms that attach and grow on a solid surface. Biofilms are common in nature. They can cause clogs and corrode pipes, cause infections when formed on medical implants, and cost billions of dollars in damages, so it is desirable to prevent their growth. This work explores the ability of electrospun titanium dioxide to inhibit the growth of biofilms of pseudomonas...
Autografting and synthetic nerve grafts are options clinically to repair peripheral nerve defects which can occur due to trauma or a surgery. However, autografting suffers from limited donor site availability and synthetic nerve grafts have low efficiencies in repairing nerve defects. Recently electrospun nanofibers have emerged as an alternative approach to remedy these deficiencies. Electrosp...
The use of biomaterials processed by the electrospinning technique has gained considerable interest for neural tissue engineering applications. The tissue engineering strategy is to facilitate the regrowth of nerves by combining an appropriate cell type with the electrospun scaffold. Electrospinning can generate fibrous meshes having fiber diameter dimensions at the nanoscale and these fibers c...
Tissue-engineered heart valves (TEHV) are a promising approach to solve problems in currently used prostheses. Studies of fibrin based heart valves show promissing results. To overcome last shortcommings concerning the mechanical strength we develope a textile reinforcement.Two approches are tested in this study. One is a composite of manual placed fibres and an electrospun nonwoven layer. The ...
Nonwoven fibrous membranes were formed from electrospinning lecithin solutions in a single processing step. As the concentration of lecithin increased, the micellar morphology evolved from spherical to cylindrical, and at higher concentrations the cylindrical micelles overlapped and entangled in a fashion similar to polymers in semi-dilute or concentrated solutions. At concentrations above the ...
Electrospun scaffolds can find numerous applications, including biomedical; for example, tissue engineering. Poly-L-lactic acid is considered suitable these but its low-thermal stability and poor mechanical properties limit this polymer use. The aim of work to obtain a modulation the final characteristics such as fibers dimension, wettability, elasticity, resistance rupture through choice polym...
In this communication, a fluorescent gold cluster incorporated electrospun nanofibrous membrane and single nanofiber for selective and sensitive detection of TNT at sub-ppt level are demonstrated.
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