نتایج جستجو برای: carbon based nanomaterial

تعداد نتایج: 3166953  

Journal: :Journal of materials chemistry. B 2014
Thomas J Ondera Ashton T Hamme

We report a strategy to fabricate a rapid and stable surface-enhanced Raman scattering (SERS)-based hybrid nanomaterial using gold nanopopcorns attached single-walled carbon nanotubes (AuNP@f3-SWCNTs) for label-free detection and photothermal killing of bacteria. Herein, previously ester-functionalized single-walled carbon nanotubes (f1-SWCNTs) undergo 1,3-dipolar cycloaddition reaction with in...

2009
R. Viswanathan B. Goldstein K. Anderson A. Krieger

Introduction Recently an emerging RF coil technology based on a new nanostructured material was introduced [1]. The nanomaterial can be macroscopically configured in a ribbon or string form and is comprised of a dense array of carbon nanotubes. The macroscopic configuration is mechanically robust and is held together densely by van der Waals forces. It was demonstrated in [1] that this material...

Journal: :Toxicology and applied pharmacology 2009
Eva Herzog Hugh J Byrne Maria Davoren Alan Casey Albert Duschl Gertie Janneke Oostingh

Due to their large specific surface area, the potential of nanoparticles to be highly reactive and to induce oxidative stress is particularly high. In addition, some types of nanoparticles contain transition metals as trace impurities which are known to generate reactive oxygen species (ROS) in biological systems. This study investigates the potential of two types of single-walled carbon nanotu...

2014
Paul Su Babak Haghpanah Zahra Karimi Syed Hassan Louis Gritzo Ahmed A. Busnaina Ashkan Vaziri Aiying Wang

Contamination of surfaces by nanomaterials can happen due to accidental spillage and release or gradual accumulation during processing or handling. Considering the increasingly wide use of nanomaterials in industry and research labs and also taking into account the diversity of physical and chemical properties of different nanomaterials (such as solubility, aggregation/agglomeration, and surfac...

2014
Sasha Vega-Alvarez Adriana Herrera Carlos Rinaldi Franklin A Carrero-Martínez

Nanomaterials are the subject of intense research, focused on their synthesis, modification, and biomedical applications. Increased nanomaterial production and their wide range of applications imply a higher risk of human and environmental exposure. Unfortunately, neither environmental effects nor toxicity of nanomaterials to organisms are fully understood. Cost-effective, rapid toxicity assays...

Journal: :Methods and applications in fluorescence 2015
Marco Frasconi Viviana Maffeis Juergen Bartelmess Luis Echegoyen Silvia Giordani

Carbon-based nanomaterials functionalized with fluorescent and water-soluble groups have emerged as platforms for biological imaging because of their low toxicity and ability to be internalized by cells. The development of imaging probes based on carbon nanomaterials for biomedical studies requires the understanding of their biological response as well as the efficient and safety exposition of ...

2013
Yeongjin Lim Jeong-Il Heo Marc Madou Heungjoo Shin

With the development of nanomaterial-based nanodevices, it became inevitable to develop cost-effective and simple nanofabrication technologies enabling the formation of nanomaterial assembly in a controllable manner. Herein, we present suspended monolithic carbon single nanowires and nanomeshes bridging two bulk carbon posts, fabricated in a designed manner using two successive UV exposure step...

Journal: :Chemical Society reviews 2015
J Bartelmess S J Quinn S Giordani

Carbon based nanomaterials have emerged over the last few years as important agents for biomedical fluorescence and Raman imaging applications. These spectroscopic techniques utilize either fluorescently labelled carbon nanomaterials or the intrinsic photophysical properties of the carbon nanomaterial. In this review article we present the utilization and performance of several classes of carbo...

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