Which of the following statements about nanotoxicology are correct?
A. Nanotoxicology is the study of the toxicity of nanomaterials.
Because of quantum size effects and large surface area to volume ratio, nanomaterials have unique properties compared with their larger counterparts.
C. Scientific research has indicated the potential for some nanomaterials to be toxic to humans or the environment.
D. Potential toxicities of nanomaterials towards human body are: DNA damage, ROS generation, immunotoxicity, cell death, carcinogenesis, etc.
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Although modern nanoscience and nanotechnology are quite new, nanoscale materials were used for ____________. Alternate-sized gold and silver particles created colors in the stained glass windows of medieval churches hundreds of years ago.
The European Commission says: nanotechnology is the study of phenomena and fine-tuning of materials at ________, molecular and macromolecular scales, where properties differ significantly from those at a larger scale. Products based on nanotechnology are already in use and analysts expect markets to grow by hundreds of billions of euros during this decade.
Nanotechnology aims to use _____________________ to create human-made products by arranging the molecules of various shapes and surface features into patterns in order to obtain novel and useful features. These patterns then determine important materials properties such as electrical conductivity, optical properties and mechanical strength.
Nanomaterials (nanoparticles) are materials or particles with any external dimension in the nanometer scale (from 1 nm to 100 nm) or having internal or surface structures in the ____________ scale.