As per reports, it has been revealed that the Food and Drug Administration has asked food and cosmetic companies that if they are interested in using nanotechnology in their packaging, then they have to prove that their product is safe.

The interested companies have to undergo extra testing to prove the efficacy of their products. It has been found that the nanoscale materials are less than 100 nanometers in diameter. It is not the first time that companies have said that they want to use the technology.

The technology is already in vogue among cosmetic industry and is found in products like sunscreens, skin lotions and glare-reducing eyeglass. Experts are of the view that the technology is getting so much popularity that it would not be a shock for them, if they get to know that nanotechnology is being used in medicines.

Dennis Keefe, who is Director of FDA's office of food additive safety, was of the view that there is no doubt about it that the technology has been used in many cosmetic products, which are regulated by them. However, food products will need higher level of scrutiny.

"At this point, in terms of the science, we think it's likely the exemption does not apply and we would encourage folks to come in and talk to us”, said Dennis. He further affirmed that they are in no hurry to introduce the technology in food products.

As of now, food companies are studying to know how much bacterial contamination can be stopped from this technology. Dennis revealed that till now, there is only one food product that uses nanotechnology.

One of the reasons for which the FDA is taking a lot of time in introducing nanotechnology in food products is that it has more control over food products than on cosmetic items.