نتایج جستجو برای: fluid filled swcnt

تعداد نتایج: 263177  

Journal: :transport phenomena in nano and micro scales 2014
m. jafari m. farhadi k. sedighi

the effects of single walled carbon nanotube (swcnt) on mixed convection in a cavity are investigated numerically. the problem is studied for different richardson numbers (0.1-10), volume fractions of nanotubes (0-1%), and aspect ratio of the cavity (0.5-2.5) when the grashof number is equal to 103. the volume fraction of added nanotubes to water as base fluid are lowers than 1% to make dilute ...

2012
Owen Im Jian Li Mian Wang Lijie Grace Zhang Michael Keidar

BACKGROUND Many shortcomings exist in the traditional methods of treating bone defects, such as donor tissue shortages for autografts and disease transmission for allografts. The objective of this study was to design a novel three-dimensional nanostructured bone substitute based on magnetically synthesized single-walled carbon nanotubes (SWCNT), biomimetic hydrothermally treated nanocrystalline...

J Rexy M Mahaveersree Jayan R Kumar, R Selvamani,

In this work, the nonlocal elastic waves in a fluid conveying armchair thermo elastic single walled carbon nanotube under moving harmonic load is studied using Eringen nonlocal elasticity theory via Euler Bernoulli beam equation. The governing equations that contains partial differential equations for single walled carbon nanotube is derived by considering thermal and Lorenz magnetic force. The...

Journal: :PLoS ONE 2009
Nagarjun V. Konduru Yulia Y. Tyurina Weihong Feng Liana V. Basova Natalia A. Belikova Hülya Bayir Katherine Clark Marc Rubin Donna Stolz Helen Vallhov Annika Scheynius Erika Witasp Bengt Fadeel Padmakar D. Kichambare Alexander Star Elena R. Kisin Ashley R. Murray Anna A. Shvedova Valerian E. Kagan

Broad applications of single-walled carbon nanotubes (SWCNT) dictate the necessity to better understand their health effects. Poor recognition of non-functionalized SWCNT by phagocytes is prohibitive towards controlling their biological action. We report that SWCNT coating with a phospholipid "eat-me" signal, phosphatidylserine (PS), makes them recognizable in vitro by different phagocytic cell...

2017
Jinwook Baek Travis G. Novak Houngkyung Kim Jinsup Lee Byoungwook Jang Junseok Lee Seokwoo Jeon

In this work, we present the experimental investigation on the contact resistance of graphene/single-walled carbon nanotube (SWCNT) junction using transfer length method with the simple equivalent circuit model. We find that p-n like junctions are formed in graphene/SWCNT transistors, and the contact resistance in the junction is observed to be ~ 494 and ~ 617 kΩ in case of metallic SWCNT (m-SW...

2001
Ladislav Kavan Peter Rapta Lothar Dunsch

had focussed on practical issues of hydrogen storage [1], Li batteries [2] and supercapacitors [3]. Owing to their unique electronic structure, the singlewalled carbon nanotubes (SWCNT) show characteristic Raman and VisNIR spectra. They are understood in terms of resonance enhancement and optical band-gap excitation in onedimensional conductor with Van Hove singularities in the electronic densi...

Journal: :Journal of Applied Polymer Science 2022

Abstract In this study, polymer/glass fiber fabric‐based nanocomposite plates were fabricated with 0.01%–0.1% single‐walled carbon nanotubes (SWCNTs) and filler materials (barite, magnetite, colemanite) using a hand layup process. Mechanical properties (e.g., tensile strength, flexural Charpy impact strength), thermal conductivity, radiation shielding gamma neutron radiation) of the specimens d...

Journal: :ACS nano 2012
Alexander A Kapralov Wei Hong Feng Andrew A Amoscato Naveena Yanamala Krishnakumar Balasubramanian Daniel E Winnica Elena R Kisin Gregg P Kotchey Pingping Gou Louis J Sparvero Prabir Ray Rama K Mallampalli Judith Klein-Seetharaman Bengt Fadeel Alexander Star Anna A Shvedova Valerian E Kagan

The pulmonary route represents one of the most important portals of entry for nanoparticles into the body. However, the in vivo interactions of nanoparticles with biomolecules of the lung have not been sufficiently studied. Here, using an established mouse model of pharyngeal aspiration of single-walled carbon nanotubes (SWCNTs), we recovered SWCNTs from the bronchoalveolar lavage fluid (BALf),...

Journal: :American journal of physiology. Lung cellular and molecular physiology 2005
Anna A Shvedova Elena R Kisin Robert Mercer Ashley R Murray Victor J Johnson Alla I Potapovich Yulia Y Tyurina Olga Gorelik Sevaram Arepalli Diane Schwegler-Berry Ann F Hubbs James Antonini Douglas E Evans Bon-Ki Ku Dawn Ramsey Andrew Maynard Valerian E Kagan Vincent Castranova Paul Baron

Single-walled carbon nanotubes (SWCNT) are new materials of emerging technological importance. As SWCNT are introduced into the life cycle of commercial products, their effects on human health and environment should be addressed. We demonstrated that pharyngeal aspiration of SWCNT elicited unusual pulmonary effects in C57BL/6 mice that combined a robust but acute inflammation with early onset y...

Journal: :American journal of respiratory cell and molecular biology 2008
Anna A Shvedova James P Fabisiak Elena R Kisin Ashley R Murray Jenny R Roberts Yulia Y Tyurina James M Antonini Wei Hong Feng Choudari Kommineni Jeffrey Reynolds Aaron Barchowsky Vince Castranova Valerian E Kagan

Carbon nanotubes (CNT), with their applications in industry and medicine, may lead to new risks to human health. CNT induce a robust pulmonary inflammation and oxidative stress in rodents. Realistic exposures to CNT may occur in conjunction with other pathogenic impacts (microbial infections) and trigger enhanced responses. We evaluated interactions between pharyngeal aspiration of single-walle...

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