نتایج جستجو برای: elecotrospun nanofibers

تعداد نتایج: 7124  

2017
Aya Hamed Nader Shehata Mohamed Elosairy

Electrospinning is an important, widely used process to generate nanofibers. However, there is still an open window for different designs of both spinneret and collector electrodes to be investigated. This paper introduces the impact of new design of conical spinneret electrode on the generated electrospun nanofibers. In this work, the conical feeder is used to generate electrospun Poly(vinyl a...

Journal: :Nanoscale 2016
Q Shi J Hou C Zhao Z Xin J Jin C Li S-C Wong J Yin

A smart core-sheath nanofiber for non-adherent cell capture and release is demonstrated. The nanofibers are fabricated by single-spinneret electrospinning of poly(N-isopropylacrylamide) (PNIPAAm), polycaprolactone (PCL) and nattokinase (NK) solution blends. The self-assembly of PNIPAAm and PCL blends during the electrospinning generates the core-sheath PCL/PNIPAAm nanofibers with PNIPAAm as the...

Journal: :ACS nano 2012
Po-Chun Hsu Hui Wu Thomas J Carney Matthew T McDowell Yuan Yang Erik C Garnett Michael Li Liangbing Hu Yi Cui

Copper nanofiber networks, which possess the advantages of low cost, moderate flexibility, small sheet resistance, and high transmittance, are one of the most promising candidates to replace indium tin oxide films as the premier transparent electrode. However, the chemical activity of copper nanofibers causes a substantial increase in the sheet resistance after thermal oxidation or chemical cor...

2014
Jeon-Hee Kim Seung-Joon Yoo Dong-Heui Kwak Heung-Joe Jung Tae-Young Kim Kyung-Hee Park Jae-Wook Lee

Alumina nanofibers were prepared by a technique that combined the sol-gel and electrospinning methods. The solution to be electrospun was prepared by mixing aluminum isopropoxide (AIP) in ethanol, which was then refluxed in the presence of an acid catalyst and polyvinylpyrolidone (PVP) in ethanol. The characterization results showed that alumina nanofibers with diameters in the range of 102 to ...

Journal: :Carbohydrate polymers 2014
Serkan Demirci Asli Celebioglu Tamer Uyar

We report on a facile and robust method by which surface of electrospun cellulose acetate (CA) nanofibers can be chemically modified with cationic polymer brushes for DNA adsorption. The surface of CA nanofibers was functionalized by growing poly[(ar-vinylbenzyl)trimethylammonium chloride)] [poly(VBTAC)] brushes through a multi-step chemical sequence that ensures retention of mechanically robust...

2016
Satoshi Kushi Ryota Tsukada Keiichi Noguchi Takeshi Shimomura Hsing-Lin Wang

Whisker-type poly(3-hexylthiophene-2,5-diyl) (P3HT) nanofibers were aligned by restricting their growth direction using an approximately 100–1000 nm wide narrow groove fabricated by thermal nanoimprinting. In grooves made of an amorphous fluoropolymer (CYTOPTM) with widths of less than 1500 nm, the nanofibers oriented uniaxially perpendicular to the groove and their length was limited to the wi...

2016
Jung Sang Cho Jung-Kul Lee Yun Chan Kang

A novel one-dimensional nanohybrid comprised of conductive graphitic carbon (GC)-coated hollow FeSe2 nanospheres decorating reduced graphene oxide (rGO) nanofiber (hollow nanosphere FeSe2@GC-rGO) was designed as an efficient anode material for sodium ion batteries and synthesized by introducing the nanoscale Kirkendall effect into the electrospinning method. The electrospun nanofibers transform...

2014
Zengyuan Pang Jiapeng Fu Pengfei Lv Fenglin Huang Qufu Wei

Camphor sulfonic acid (CSA)-doped polyamide 6/polyaniline (PA6/PANI) composite nanofibers were fabricated using in situ polymerization of aniline under different CSA concentrations (0.02, 0.04, 0.06, 0.08 and 0.10 M) with electrospun PA6 nanofibers as templates. The structural, morphological and ammonia sensing properties of the prepared composite nanofibers were studied using scanning electron...

2016
Victor A. Agubra Luis Zuniga David Flores Howard Campos Jahaziel Villarreal Mataz Alcoutlabi

The development of alternative anode materials out of flexible composite nanofibers has seen a growing interest. In this paper, binary carbon nanofiber electrodes of SnO2/NiO and Sn nanoparticles are produced using a scalable technique, Forcespinning (FS), and subsequent thermal treatment (carbonization). The Sn/C composite nanofibers were porous and flexible, while the SnO2/NiO composite nanof...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Michael E Davis Patrick C H Hsieh Tomosaburo Takahashi Qing Song Shuguang Zhang Roger D Kamm Alan J Grodzinsky Piero Anversa Richard T Lee

Strategies for cardiac repair include injection of cells, but these approaches have been hampered by poor cell engraftment, survival, and differentiation. To address these shortcomings for the purpose of improving cardiac function after injury, we designed self-assembling peptide nanofibers for prolonged delivery of insulin-like growth factor 1 (IGF-1), a cardiomyocyte growth and differentiatio...

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