نتایج جستجو برای: Electrospun

تعداد نتایج: 5454  

Journal: :Langmuir : the ACS journal of surfaces and colloids 2010
Björn Carlberg Teng Wang Johan Liu

In this letter, a method of generating spatially defined electrospun microarchitectures by direct photolithographic patterning of electrospun films is described. A photoinitiator, benzoin methyl ether, is incorporated into a solid thermoplastic electrospun polyurethane matrix selectively photo-cross-linked by standard photolithographic methods. Subsequent development in an organic solvent yield...

Journal: :Journal of biomaterials science. Polymer edition 2005
Anuradha Subramanian David Vu Gustavo F Larsen Hsin-Yi Lin

Fibrous materials have morphological similarities to natural cartilage extracellular matrix and have been considered as candidate for bone tissue engineering scaffolds. In this study, we have evaluated a novel electrospun chitosan mat composed of oriented sub-micron fibers for its tensile property and biocompatibility with chondrocytes (cell attachment, proliferation and viability). Scanning el...

Journal: :journal of advanced medical sciences and applied technologies 0
esmaeil mirzaei samst, sums saeed sarkar department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran seyed mahdi rezayat department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran reza faridi-majidi department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran,

semelil is an herbal-based compound which is used for the treatment of chronic wounds, especially diabetic foot ulcers. on the other hand, electrospun nanofibers have many characteristics such as mimicking extracellular matrix structure, efficiency as bacterial barrier, appropriate water vapor transmission rate, and provision of adequate gaseous exchange which make them ideal candidates for wou...

2011
Nathan J. Jenness Yiquan Wu Robert L. Clark

a r t i c l e i n f o Electrospun polycaprolactone nanofibers were selectively ablated to form microstructures via the phase modulation of femtosecond laser beams. Ablation width (1–15 μm) and depth (15–110 μm) resolution were dependent upon the selection of pulse energy and microscope objective. Because phase modulation shapes light in a maskless fashion, desired templates were digitally creat...

Journal: :Acta biomaterialia 2010
Qiuran Jiang Narendra Reddy Yiqi Yang

This paper reports a new method of cross-linking electrospun zein fibers using citric acid as a non-toxic cross-linker to enhance the water stability and cytocompatibility of zein fibers for tissue engineering and other medical applications. The electrospun structure has many advantages over other types of structures and protein-based biomaterials possess unique properties preferred for tissue ...

Journal: :Biotechnology and bioengineering 2008
Dirk Grafahrend Julia Lleixa Calvet Kristina Klinkhammer Jochen Salber Paul D Dalton Martin Möller Doris Klee

Electrospun fibers that are protein resistant and functionalized with bioactive signals were produced by solution electrospinning amphiphilic block copolymers. Poly (ethylene glycol)-block-poly(D,L-lactide) (PEG-b-PDLLA) was synthesized in two steps, with a PEG segment of 10 kDa, while the PDLLA block ranged from 20 to 60 kDa. Depending on the PEG and PDLLA segment ratio, as well as solvent sel...

Journal: :Journal of nanoscience and nanotechnology 2010
Jianjun Miao Minoru Miyauchi Trevor J Simmons Jonathan S Dordick Robert J Linhardt

Electrospinning of nanomaterial composites are gaining increased interest in the fabrication of electronic components and devices. Performance improvement of electrospun components results from the unique properties associated with nanometer-scaled features, high specific surface areas, and light-weight designs. Electrospun nanofiber membrane-containing polymer electrolytes show improved ionic ...

Journal: :Macromolecular rapid communications 2014
Jiun-Tai Chen Wan-Ling Chen Ping-Wen Fan I-Chun Yao

Electrospun polymer fibers are gaining importance because of their unique properties and applications in areas such as drug delivery, catalysis, or tissue engineering. Most studies to control the morphology and properties of electrospun polymer fibers focus on changing the electrospinning conditions. The effects of post-treatment processes on the morphology and properties of electrospun polymer...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2014
Urszula Stachewicz Fei Hang Asa H Barber

The mechanical properties of electrospun fiber networks are critical in a range of applications from filtration to tissue engineering and are dependent on the adhesion between contacting fibers within the network. This adhesion is complex as electrospun networks exhibit a variety of contacts, including both cross-cylinder and parallel fiber configurations. In situ atomic force microscopy (AFM) ...

Journal: :Food chemistry 2013
Yun Ping Neo Simon Swift Sudip Ray Marija Gizdavic-Nikolaidis Jianyong Jin Conrad O Perera

The applicability of gallic acid loaded zein (Ze-GA) electrospun fibre mats towards potential active food packaging material was evaluated. The surface chemistry of the electrospun fibre mats was determined using X-ray photon spectroscopy (XPS). The electrospun fibre mats showed low water activity and whitish colour. Thermogravimetric analysis (TGA) and Attenuated Total Reflectance-Fourier Tran...

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