نتایج جستجو برای: nanomaterials

تعداد نتایج: 12295  

Journal: :The Science of the total environment 2012
Piao Xu Guang Ming Zeng Dan Lian Huang Chong Ling Feng Shuang Hu Mei Hua Zhao Cui Lai Zhen Wei Chao Huang Geng Xin Xie Zhi Feng Liu

Nowadays there is a continuously increasing worldwide concern for the development of wastewater treatment technologies. The utilization of iron oxide nanomaterials has received much attention due to their unique properties, such as extremely small size, high surface-area-to-volume ratio, surface modifiability, excellent magnetic properties and great biocompatibility. A range of environmental cl...

F. Soleimani M. Behzad, M. Salehi

Nanostructured RuO2 powders were synthesized via a hydrothermal method at 180 °C for 12 h using 1 and 2 M NaOH aqueous solutions. The structure of the obtained nanomaterials was investigated by powder X-ray diffraction (PXRD) technique. The morphology the obtained materials were studied by field emission scanning electron microscope (FESEM). The technique showed that with changing the reaction ...

2016
MI Sierra A Valdés AF Fernández R Torrecillas MF Fraga

Human exposure to nanomaterials and nanoparticles is increasing rapidly, but their effects on human health are still largely unknown. Epigenetic modifications are attracting ever more interest as possible underlying molecular mechanisms of gene-environment interactions, highlighting them as potential molecular targets following exposure to nanomaterials and nanoparticles. Interestingly, recent ...

Journal: :Accounts of chemical research 2007
Yi Lu Juewen Liu

Three-dimensional functional nanoscale assembly requires not only self-assembly of individual nanomaterials responsive to external stimuli, such as temperature, light, and concentrations, but also directed assembly of many different nanomaterials in one-pot responsive to multiple internal stimuli signaling the needs for such materials at a specific location and a particular time. The use of fun...

2017
David Lai

With the increasing use and development of engineered nanomaterials in electronics, pesticides, consumer products, and chemical and pharmaceutical industries, there is a growing concern about their potential risks to humans and the environment. The toxic effects of most nanomaterials have not been characterized, but it is generally believed that nanoparticles can have toxicological properties t...

2015
Hamed M El-Mashad Zhongli Pan

Submit Manuscript | http://medcraveonline.com MOJ Food process Technol 2015, 1(2): 00011 process costs and operational complications are limiting factors for such combination. New disinfection methods and media are needed to overcome the disadvantages of the current technologies [3]. Nanomaterials are emerging and promising fungicidal, algicidal, and bactericidal media that could be applied for...

2011
Xiaodi Liu Jianmin Ma Wenjun Zheng

]cWT PbcUTfSTRPSTbX]XR[XdXSb ?b qVaTT]rb[eT]cbWPeTPcaPRcTScaT T] dous attention in the inorganic nanomaterials synthesis owing to their unique physico-chemical properties, such as nonvolatile, negligible vapor pressure, low toxicity, and high thermal stability. Most recently, many technological advances have occurred in the use of ILs, served as solvents, reactants, or templates, in the synthes...

2017
Zhenjiang Zhang Michael R. King

Circulating tumor cells are a hallmark of cancer metastasis which accounts for approximately 90% of all cancer-related deaths. Their detection and characterization have significant implications in cancer biology and clinical practice. However, CTCs are rare cells and consist of heterogeneous subpopulations, requiring highly sensitive and specific techniques to identify and isolate them with hig...

2017
Marc J. Pallardy Isabelle Turbica Armelle Biola-Vidamment

Particles possess huge specific surface area and therefore nanomaterials exhibit unique characteristics, such as special physical properties and chemical hyper-reactivity, which make them particularly attractive but also raise numerous questions concerning their safety. Interactions of nanomaterials with the immune system can potentially lead to immunosuppression, hypersensitivity (allergy), im...

Journal: :Small 2015
Tao Chen Yanyi Huang

Transient absorption is a secondary absorption that happens after a material has been excited through primary absorption. Different mechanisms can contribute to transient absorption. This universal photophysical process exists in almost all types of nanomaterials, making it an ideal modality to monitor the location, dynamics, and interactions of nanomaterials in living cells, tissues, or animal...

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