The earliest form of condoms was in ancient Egypt 3,000 years ago, and the emergence of modern condoms dates back to the 17th century in Britain. At that time, condoms were made using the cecum of the animal, fish maw, etc., and some were reused. Neither hygienic nor particularly safe.
Those ancient condoms are basically made of materials such as fish maw and animal small intestine. Of course, the fish maw was the ultra-thin model of the year.
By the Middle Ages, an important event in the history of human contraception—Charles II of the United Kingdom was innumerable and the children were in groups, very disturbing. An imperial doctor named Condom in the inner court made a true ultra-thin condom for the king with sheep cecum, with a thickness of 0.038 mm (latex condoms are generally 0.030 mm). Later he named the condom after himself! From then on, the condom’s English name was “Condom”! What was even more unexpected later was that Britain actually earned a lot of foreign exchange from this condom at the time, and this Mr. Condom also won the knighthood granted by the British royal family! Condoms are still quite important and dramatic in the history of human birth planning.
It was not until the 19th century that vulcanized rubber condoms appeared, and people began to use rubber condoms. By the end of the 19th century, the emergence of natural latex had once again made a qualitative leap in the development of condoms. And, almost all condoms today are natural latex rubber condoms. Natural rubber latex itself has naturally occurring cracks, and the volume of various viruses is much smaller than the natural cracks of natural latex, so even if condoms are used correctly, there is still a small probability of being infected with sexually transmitted diseases.
Graphene is the thinnest, the strongest, the best electrical and thermal conductivity of a new type of nanomaterial found by the scientific community. Its thermal conductivity is better than diamond, its fracture strength is 200 times higher than that of steel, and single-layer graphene has high transparency and only absorbs 2.3% of light. Graphene is so dense that it cannot penetrate even the smallest gas atoms. Bacterial cells cannot grow on graphene paper, while human cells are not damaged. All these properties make it a good choice for condom-making materials.