REVIEW OF VARIOUS NANOMATERIALS AND THEIR MAJOR HEALTH ISSUES

摘要

Various nanomaterials, including nanoparticles, nanowires, nanotubes, nanofibers,rnnanocomposites and nanofilms have been produced for over two decades and used for manyrnindustrial applications, such as automobile, aircraft, energy, medical, defense, electronics andrntelecommunications, health care, sensor and textile. These nanoscale materials have outstandingrnmechanical, magnetic, electrical, optical and thermal properties compared to their bulk sizerncounterparts. More than 1300 nanoproducts are currently in the market, and this number willrnapparently reach to 5000 very soon. The recent studies show that these nanomaterials can enterrnthe body by inhalation, ingestion and dermal contacts and can damage or kill the cells or organs,rnblock blood flow, and also cause serious illnesses. Some of the diseases associated withrnnanomaterials include asthma, bronchitis, lung and liver cancer. In the present study, we willrndiscuss about the exposures of nanomaterials to the human body, their major health issues,rnprevention methods, and recent development in the field.