There is also a kind of "nano-band-aid" made of crab shells and kelp (an algae plant of laminaria) in Japan, the thickness of which is only one thousandth of that of plastic wrap.
The nano band-aid invented in Singapore is made of ultrafine particles with the size less than 100 nanometer (1 nanometer is equivalent to one millionth of a millimeter). Nano-medical membrane is made of polymer.
Extended data:
Background of the invention:
At the beginning of the 20th century, Mrs. El Dixon just got married and had no cooking experience. She often cuts her hand or burns herself in the kitchen. At that time, El Dixon worked in a company that produced surgical bandages, and he soon became proficient in dressing his wife. He thought it would be nice to have a bandage. When his wife was injured and no one helped her, she could dress it herself.
So he began to do experiments. He thought that if gauze and bandage were made together, he could dress the wound with one hand. He took a piece of gauze and put it on the table, coated it with glue, then folded another piece of gauze into a gauze pad and put it in the middle of the bandage. But there is a problem. The adhesive used to make this bandage will dry if it is exposed to air for a long time.
Dixon tried many different fabrics to cover the tape, hoping to find a material that is not difficult to peel off when needed. Later, he found that there was a kind of coarse gauze that could accomplish this task well. It has been widely used after improvement by the company.
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