نتایج جستجو برای: nanofibers

تعداد نتایج: 7124  

Journal: :Journal of biomaterials science. Polymer edition 2011
Yan Su Xiaoqiang Li Yinan Liu Qianqian Su Marcus Lim Wei Qiang Xiumei Mo

Poly(L-lactide-co-ε-caprolactone) nanofibers with heparin incorporated were successfully fabricated by coaxial electrospinning. The morphologies of electrospun nanofibers were studied by scanning electron microscopy (SEM), and a significant decrease in fiber diameter was observed with increasing heparin concentration. The transmission electron microscopy (TEM) images indicated that coaxial elec...

2018
Asli Celebioglu1 · Tamer Uyar

Cyclodextrins (CD) are cyclic oligosaccharides that can form noncovalent host–guest inclusion complexes to yield intriguing supramolecular structures. Electrospinning of nanofibers from CD is challenging since they are small molecules, nonetheless, electrospun nanofibers from CD would be particularly attractive because of the distinctive properties obtained by combining the very large surface a...

Journal: :Biomacromolecules 2012
Andrea Mickova Matej Buzgo Oldrich Benada Michala Rampichova Zdenek Fisar Eva Filova Martina Tesarova David Lukas Evzen Amler

The broader application of liposomes in regenerative medicine is hampered by their short half-life and inefficient retention at the site of application. These disadvantages could be significantly reduced by their combination with nanofibers. We produced 2 different nanofiber-liposome systems in the present study, that is, liposomes blended within nanofibers and core/shell nanofibers with embedd...

2012
Renata de Lima Leandro Oliveira Feitosa Cintia Rodrigues Maruyama Mariana Abreu Barga Patrícia Cristina Yamawaki Isolda Jesus Vieira Eliangela M Teixeira Ana Carolina Corrêa Luiz Henrique Caparelli Mattoso Leonardo Fernandes Fraceto

BACKGROUND Agricultural products and by products provide the primary materials for a variety of technological applications in diverse industrial sectors. Agro-industrial wastes, such as cotton and curaua fibers, are used to prepare nanofibers for use in thermoplastic films, where they are combined with polymeric matrices, and in biomedical applications such as tissue engineering, amongst other ...

2014
Rajendra K. Singh Kapil D. Patel Jae Ho Lee Eun-Jung Lee Joong-Hyun Kim Tae-Hyun Kim Hae-Won Kim

Magnetic nanofibrous scaffolds of poly(caprolactone) (PCL) incorporating magnetic nanoparticles (MNP) were produced, and their effects on physico-chemical, mechanical and biological properties were extensively addressed to find efficacy for bone regeneration purpose. MNPs 12 nm in diameter were citrated and evenly distributed in PCL solutions up to 20% and then were electrospun into nonwoven na...

Journal: :Journal of colloid and interface science 2015
Ling Jiang Yunpeng Huang Tianxi Liu

In this work, the effects of halloysite nanotubes (HNTs) on the visible-light photocatalytic ability of electrospun carbon doped TiO2/HNT (C-TH) nanofibers have been explored. Structural and morphological investigations demonstrate that incorporation of HNTs into anatase C-TH hybrid nanofibers was easily achieved by using sol-gel processing combined with electrospinning approach, thus HNTs coul...

2017
Tian Zhou Baiyan Sui Xiumei Mo Jiao Sun

The development of skin wound dressings with excellent properties has always been an important challenge in the field of biomedicine. In this study, biomimetic electrospun fish collagen/bioactive glass (Col/BG) nanofibers were prepared. Their structure, tensile strength, antibacterial activity and biological effects on human keratinocytes, human dermal fibroblasts and human vascular endothelial...

Journal: :علوم و تکنولوژی پلیمر 0
مهدی صدرجهانی سید عبدالکریم حسینی راوندی فرزاد دبیریان

amodified technique is designed to prepare aligned nanofibers to challenge the existing limitations in collecting methods of nanofibers such as, thickness of collected layer, alignment and productivity of nanofibers. collecting and simultaneously heating of the aligned nanofibers were carried out by using a rotating drum fixed on top of syringe needles and applying hot air flow. this electrospi...

Journal: :nanomedicine journal 0
omolfajr nakhaei department of physics, ferdowsi university of mashhad, mashhad, iran faculty of science, nanotechnology research center, ferdowsi university, mashhad, iranسازمان اصلی تایید شده: دانشگاه فردوسی (ferdowsi university) nasser shahtahmassebi department of physics, ferdowsi university of mashhad, mashhad, iran faculty of science, nanotechnology research center, ferdowsi university, mashhad, iranسازمان اصلی تایید شده: دانشگاه فردوسی (ferdowsi university)

objective(s): this paper describes synthesispolyvinyl alcohol/caf2:er nanofibers because of  its  photoluminescence properties.materials and methods:  first, caf2:er nanocomposite synthesized with co-precipitation method. in order to prepare polyvinyl alcohol (pva)/caf2:er nanofibers, caf2:er nanocomposites were added to the polyvinyl alcohol (pva) polymer. pva/caf2:er composite nanofibers were...

2014
Bogdanel Silvestru Munteanu Zeynep Aytac Gina M. Pricope Tamer Uyar Cornelia Vasile

The antibacterial property of silver nanoparticles (Ag-NPs) and the antioxidant activity of Vitamin E have been combined by incorporation of these two active components within polylactic acid (PLA) nanofibers via electrospinning (PLA/Ag-NP/VitaminE nanofibers). The morphological and structural characterizations of PLA/Ag-NP/VitaminE nanofibers were performed by Scanning Electron Microscopy (SEM...

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