نتایج جستجو برای: nanofiber

تعداد نتایج: 4098  

Journal: :Journal of biomedical materials research. Part A 2014
Laura Boomer Yanchun Liu Nathan Mahler Jed Johnson Katelyn Zak Tyler Nelson John Lannutti Gail E Besner

Novel therapies are crucially needed for short bowel syndrome. One potential therapy is the production of tissue engineered intestine (TEI). The intestinal environment presents significant challenges to the selection of appropriate material for tissue engineering scaffolds. Our goal was to characterize different scaffold materials to downselect to that best suited for TEI production. To investi...

2017
Hayato Kato Akikazu Shimizu Taiga Sato Masahito Kushida

Carbon nanotube polymer actuators were developed using composite nanofiber sheets fabricated by multi-walled carbon nanotubes(MWCNTs) and poly (vinylidene fluorideco-hexafluoropropylene) (PVDF-HFP). Nanofiber sheets were fabricated by electrospinning method. The effect of flow rate and polymer concentration on nanofiber formation were verified for optimum condition for fabricating nanofiber she...

Journal: :iranian biomedical journal 0
لیلا بیگم حجازیان leila beigom hejazian بنفشه اسمعیل زاده banafshe esmaeilzade فاطمه مغنی قرقی fatima moghanni ghoroghi فاطمه مرادی fatemeh moradi مرضیه بیگم حجازیان marzieh beigom hejazian آناهیتا اصلانی anahita aslani مهرداد بختیاری

background: the aim of this study was to fabricate the poly caprolactone (pcl) aligned nanofiber scaffold and to evaluate the survival, adhesion, proliferation, and differentiation of rat hair follicle stem cells (hfsc) in the graft material using electrospun pcl nanofiber scaffold for tissue engineering applications. methods: the bulge region of rat whisker was isolated and cultured in dmem: n...

Journal: :Optics express 2012
Ramachandrarao Yalla K P Nayak K Hakuta

We experimentally investigate the fluorescence photon emission characteristics for single q-dots by using optical nanofibers. We demonstrate that single q-dots can be deposited along an optical nanofiber systematically and reproducibly with a precision of 5 μm. For single q-dots on an optical nanofiber, we measure the fluorescence photon numbers coupled into the nanofiber and the normalized pho...

2015
Masaya Nogi Makoto Karakawa Natsuki Komoda Hitomi Yagyu Thi Thi Nge

Optically transparent nanofiber paper containing silver nanowires showed high electrical conductivity and maintained the high transparency, and low weight of the original transparent nanofiber paper. We demonstrated some procedures of optically transparent and electrically conductive cellulose nanofiber paper for lightweight and portable electronic devices. The nanofiber paper enhanced high con...

2011
Hiroki Nakagawa Yusuke Hara Shingo Maeda

In this study, we succeeded in manufacturing a novel nanofiber hydrogel actuator that caused a bending and stretching motion synchronized with external pH oscillation, based on a bromate/sulfite/ferrocyanide reaction. The novel nanofiber gel actuator was composed of electrospun nanofibers synthesized by copolymerizing acrylic acid and hydrophobic butyl methacrylate as a solubility control site....

2015
Ming-Hua Ho Chih-Jung Yao Mei-Hsiu Liao Pei-I Lin Shing-Hwa Liu Ruei-Ming Chen

Osteoblasts play critical roles in bone formation. Our previous study showed that chitosan nanofibers can stimulate osteoblast proliferation and maturation. This translational study used an animal model of bone defects to evaluate the effects of chitosan nanofiber scaffolds on bone healing and the possible mechanisms. In this study, we produced uniform chitosan nanofibers with fiber diameters o...

Journal: :Bioengineering 2014
Vince Beachley R Glenn Hepfer Eleni Katsanevakis Ning Zhang Xuejun Wen

A hybrid cell sheet engineering approach was developed using ultra-thin nanofiber arrays to host the formation of composite nanofiber/cell sheets. It was found that confluent aligned cell sheets could grow on uniaxially-aligned and crisscrossed nanofiber arrays with extremely low fiber densities. The porosity of the nanofiber sheets was sufficient to allow aligned linear myotube formation from ...

2012
Jin Ju Yoo Chan Kim Chung-Wook Chung Young-Il Jeong Dae Hwan Kang

BACKGROUND The study investigated the use of combined photodynamic therapy (PDT) and stent placement for the treatment of cholangiocarcinoma (CC). For this purpose, 5-aminolevulinic acid (ALA) was incorporated into poly(vinyl alcohol) (PVA) nanofiber, and coated onto metal stents. Their efficacy was assessed in PDT towards HuCC-T1 CC cells. METHODS Fabrication of ALA-PVA nanofiber, and simult...

2016
Jun-ichi Kadokawa Andriy Voronov

Chitin is a representative biomass resource comparable to cellulose. Although considerable efforts have been devoted to extend novel applications to chitin, lack of solubility in water and common organic solvents causes difficulties in improving its processability and functionality. Ionic liquids have paid much attention as solvents for polysaccharides. However, little has been reported regardi...

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