نتایج جستجو برای: هیبرید mwcnt sio2

تعداد نتایج: 18629  

Journal: :Analytical biochemistry 2011
Yadong Xue Lei Bao Xirui Xiao Lin Ding Jianping Lei Huangxian Ju

A kind of concanavalin A functionalized multiwalled carbon nanotube (ConA-MWCNT) was constructed by noncovalent assembly of ConA on carboxylated MWCNT with poly(diallyldimethylammonium) as a linker. The novel nanomaterial was characterized with scanning electron microscopy and atomic force microscopy. It incorporated both the specific recognition ability of lectin for cell-surface mannosyl grou...

2018
Shoji Fukushima Tatsuya Kasai Yumi Umeda Makoto Ohnishi Toshiaki Sasaki Michiharu Matsumoto

OBJECTIVES This report reviews the carcinogenicity of multi-walled carbon nanotubes (MWCNTs) in experimental animals, concentrating on MWNT-7, a straight fibrous MWCNT. METHODS MWCNTs were administered to mice and rats by intraperitoneal injection, intrascrotal injection, subcutaneous injection, intratracheal instillation and inhalation. RESULTS Intraperitoneal injection of MWNT-7 induced p...

2017
Lasse Højlund Thamdrup Fredrik Persson Henrik Bruus Anders Kristensen Henrik Flyvbjerg

Journal: :Chemical communications 2008
Xichen Cai Kelechi C Anyaogu Douglas C Neckers

A facile method for the functionalization of multiwall carbon nanotubes (MWCNT) by photopolymerization of 5-mercapto-2,2'-bithiophene modified metal (Au or Ag) nanoparticles on the surface of the MWCNT is developed.

2015
Jayant I. Gowda Arunkumar T. Buddanavar Sharanappa T. Nandibewoor

A multi-walled carbon nanotube (MWCNT)-cetyltrimethylammonium bromide (CTAB) surfactant composite modified glassy carbon electrode (GCE) was developed as a novel system for the determination of 4-aminoantipyrine(AAP). The oxidation process was irreversible over the pH range studied and exhibited a diffusion controlled behavior. All experimental parameters were optimized. The combination of MWCN...

Journal: :Bio-medical materials and engineering 2009
Michiko Terada Shigeaki Abe Tsukasa Akasaka Motohiro Uo Yoshimasa Kitagawa Fumio Watari

Carbon nanotubes (CNTs) have excellent chemical durability, mechanical strength and electrical properties. Therefore, there is interest in CNTs for not only electrical and mechanical applications, but also biological and medical applications. We coated titanium, a common material for dental implants, with multiwalled carbon nanotubes (MWCNTs). First, titanium was aminated and covered with colla...

Journal: :ACS nano 2012
Xinyi Chen Hongli Zhu Yu-Chen Chen Yuanyuan Shang Anyuan Cao Liangbing Hu Gary W Rubloff

A multiwall carbon nanotube (MWCNT) sponge network, coated by ALD V(2)O(5), presents the key characteristics needed to serve as a high-performance cathode in Li-ion batteries, exploiting (1) the highly electron-conductive nature of MWCNT, (2) unprecedented uniformity of ALD thin film coatings, and (3) high surface area and porosity of the MWCNT sponge material for ion transport. The core/shell ...

2012
Afarin Bahrami Zainal Abidin Talib Wan Mahmood Mat Yunus Kasra Behzad Mahnaz M. Abdi Fasih Ud Din

Polypyrrole (PPy) and polypyrrole-carboxylic functionalized multi wall carbon nanotube composites (PPy/f-MWCNT) were synthesized by in situ chemical oxidative polymerization of pyrrole on the carbon nanotubes (CNTs). The structure of the resulting complex nanotubes was characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The effects of f-MWCNT concentration on t...

2010
Chatchawal Wongchoosuk Anurat Wisitsoraat Ditsayut Phokharatkul Adisorn Tuantranont Teerakiat Kerdcharoen

In this work we have fabricated hydrogen gas sensors based on undoped and 1 wt% multi-walled carbon nanotube (MWCNT)-doped tungsten oxide (WO(3)) thin films by means of the powder mixing and electron beam (E-beam) evaporation technique. Hydrogen sensing properties of the thin films have been investigated at different operating temperatures and gas concentrations ranging from 100 ppm to 50,000 p...

2011
Min-Young Hwang Hyungsuk Kim Eun-Soo Kim Jihoon Lee Sang-Mo Koo

We demonstrate an enhanced photo-sensitivity (PS) through an increased light-trapping using surface nano-structuring technique by inductively coupled plasma (ICP) etching on multi-walled carbon nanotube (MWCNT) etch masked Si with hexamethyl-disilazane (HMDS) dispersion. In order for a systematic comparison, four samples are prepared, respectively, by conventional photolithography and ICP etchi...

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