نتایج جستجو برای: uniaxial nanofibers

تعداد نتایج: 15313  

2014
Tatsuya Kikuchi Osamu Nishinaga Daiki Nakajima Jun Kawashima Shungo Natsui Norihito Sakaguchi Ryosuke O. Suzuki

Anodic oxide fabricated by anodizing has been widely used for nanostructural engineering, but the nanomorphology is limited to only two oxides: anodic barrier and porous oxides. Therefore, the discovery of an additional anodic oxide with a unique nanofeature would expand the applicability of anodizing. Here we demonstrate the fabrication of a third-generation anodic oxide, specifically, anodic ...

2011
Dawei Gao Hui Qiao Qingqing Wang Yibing Cai Qufu Wei

Porous carbon/cobalt (C/Co) composite nanofibers with diameters of 200-300 nm were prepared by electrospinning and subsequent carbonization processes. Two polymer solutions of polyacrylonitrile (PAN), polyvinyl pyrrolidone (PVP), and Co (CH3COOH) 2 (Co (OAc) 2) were used as C/Co composite nanofiber precursors. The study revealed that C/Co composite nanofibers were successfully prepared and coba...

Journal: :Journal of biomaterials science. Polymer edition 2014
Bing Han Xuehui Zhang Haiyang Liu Xuliang Deng Qing Cai Xiaolong Jia Xiaoping Yang Yan Wei Gang Li

Composite nanofibers composed of polyacrylonitrile (PAN)-based carbon nanofibers and bioactive glass (BG) nanoparticles have been prepared by electrospinning and in situ sintering. Morphology observation showed that the BG nanoparticles of size 20-50 nm were uniformly distributed on the surface of composite nanofibers with 350 nm average diameter after carbonization. Biological mineralization i...

Journal: :jundishapur journal of natural pharmaceutical products 0
abbas akhgari targeted drug delivery research center, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran abdolmaohammad ghalambor dezfuli physics department, shahid chamran university, ahvaz, ir iran mohammadebrahim rezaei physics department, shahid chamran university, ahvaz, ir iran mohammad kiarsi nanotechnology research center, school of pharmacy, ahvaz jundishapur university of medical sciences, ahvaz, ir iran mohammadreza abbaspour targeted drug delivery research center, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran; targeted drug delivery research center, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran. tel/fax: +98-5138823251

results the results showed that the fiber diameter and the amount of loratadine affected the drug release and the disappearance time of nanofibers. the smaller the fiber diameter and drug amount, the faster the solubility and the release time of nanofibers. conclusions it was concluded that electrospinning can be a suitable method for preparing fast-dissolving loratadine nanofibers. materials a...

2013
Chenwen Li Ruoqiu Fu Caiping Yu Zhuoheng Li Haiyan Guan Daqiang Hu Dehua Zhao Laichun Lu

In this study, a mixture of poly(vinyl alcohol) (PVA) and chitosan oligosaccharides (COS) was electrospun with silver nanoparticles (AgNPs) to produce fibrous mats for use in wound healing. The AgNPs were reduced by COS prior to electrospinning or Ag(+) was reduced via ultraviolet irradiation in nanofibers. The morphologies of the PVA/COS/AgNO3 and PVA/COS-AgNP nanofibers were analyzed by scann...

2015
Mohammed A. Al-Omair

Electrospun polycaprolacyone/polymethacrylic acid graft copolymer nanofibers (PCL/MAA) containing silver nanoparticles (AgNPs) were synthesized for effective wound disinfection. Surface morphology, AgNPs content, water uptake of electrospun PCL/MAA graft copolymer nanofibers without and with AgNPs, and levels of AgNPs leaching from the nanofibers in water as well as antimicrobial efficacy were ...

2017
Ming He Buning Zhang Yao Dou Guoqiang Yin Yingde Cui Xunjun Chen

Feathers, which contain more than 90% of keratin, are valuable natural protein resources. Moreover, recycling waste feathers to develop biomaterials contributes to environmental protection. The aim of this study was to fabricate and characterize both random and aligned feather keratin (FK)/PVA composite nanofibers through an electrospinning process. The morphology, molecular interaction, crysta...

2016
Jung Sang Cho Seung Yeon Lee Yun Chan Kang

The first-ever study of nickel selenide materials as efficient anode materials for Na-ion rechargeable batteries is conducted using the electrospinning process. NiSe2-reduced graphene oxide (rGO)-C composite nanofibers are successfully prepared via electrospinning and a subsequent selenization process. The electrospun nanofibers giving rise to these porous-structured composite nanofibers with o...

Journal: :Colloids and surfaces. B, Biointerfaces 2014
M Fatih Canbolat Asli Celebioglu Tamer Uyar

In this study, we select naproxen (NAP) as a reference drug and electrospun poly (ɛ-caprolactone) (PCL) nanofibers as a fibrous matrix for our drug-delivery system. NAP was complexed with beta-cyclodextrin (βCD) to form inclusion complex (NAP-βCD-IC) and then NAP-βCD-IC was incorporated into PCL nanofibers via electrospinning. The incorporation of NAP without CD-IC into electrospun PCL was also...

2014
Yingjie Liao Takeshi Fukuda Norihiko Kamata Makoto Tokunaga

Electrospinning is a versatile technique, which can be used to generate nanofibers from a rich variety of materials. We investigate the variation of a zinc oxide (ZnO)-polyvinylpyrrolidone (PVP) composite structure in morphology by electrospinning from a series of mixture solutions of ZnO sol-gel and PVP. Calcination conditions for the crystallization of ZnO nanofibers and removal of the PVP co...

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