If the particles are nano sized then is this considered nano-technology, if so isn nano technology not yet proven to be safe?
The short answer is yes the technology falls under the science of nano-technology too, but the technology has been and is primarily under the umbrella of colloidal chemistry for about the last 100 years. Nano technology is an emerging science, however there is confusion as to what is meant by emerging nano-technologies, and well established products should not be sucked into the new label unduly. The concerns that are voiced with regard to nano-technology are primarily with regard to exotic materials, meaning the creation of materials that do not exist in nature. That said it is very appropriate to note that known-natural materials that are in the nano state may posses unusual properties, such as silver’s known history with regard to anti-microbial properties that are effective against hundreds of pathogens. Nano sized particles of pure silver more accurately involves colloidal chemistry. Colloidal chemistry, as concerns colloidal silver, for about 100 years, sub micron and nanometer s
