Now, breathe to spot fake drugs
Checking whether a drug you are buying is real may become a lot easier as researchers have developed labels that reveal a hidden image when you breathe on them.
"You can verify that you have the real product with just a breath of air," said Nicholas Kotov, a professor of chemical engineering at University of Michigan in the US.
The researchers found a way to print tiny features 500 times smaller than human hair onto labels through nanotechnology, the image becomes visible when someone blows on it.
Tiny pillars on the surface hide the images printed which reappear when the pillars trap moisture.
The material they have developed is a special blend of polyurethane and adhesive and can stick to plastics, fabric, paper and metal.
"We use a moulding process," Terry Shyu, a doctoral student in chemical engineering at the University of Michigan said, noting that this inexpensive manufacturing technique is also used to make plastic cups.
The technique currently costs a dollar per square inch.
The study appeared in the journal Advanced Materials.
(Posted on 09-08-2014)
Information on States of India:
Andaman Nicobar | Andhra Pradesh | Arunachal Pradesh | Assam | Bihar | Chandigarh | Chhattisgarh | Dadar Nagar Haveli | Daman Diu | Delhi | Goa | Gujarat | Haryana | Himachal Pradesh | Jammu Kashmir | Jharkhand | Karnataka | Kerala | Lakshadweep | Madhya Pradesh | Maharashtra | Manipur | Meghalaya | Mizoram | Nagaland | Orissa | Pondicherry | Punjab | Rajasthan | Sikkim | Tamil Nadu | Tripura | Uttar Pradesh | Uttaranchal | West Bengal
INDIA REGIONAL MAPS:
Andhra Pradesh Travel Map | Bihar Travel Map | Goa Travel Map | Gujarat Travel Map | Haryana Travel Map | Himachal Pradesh Map | Karnataka Travel Map | Kerala Travel Map | Maharashtra Travel Map | Punjab Travel Map | Rajasthan Travel Map | Sikkim Travel Map | Tamil Nadu Travel Map | Uttar Pradesh Travel Map | West Bengal Travel Map |
KERALA TRAVEL MAPS:
TRAVEL MAPS OF INDIA:
INDIA CITY MAPS: