http://www.economist.com/news/science-and-technology/21596500-oldest-artificial-contraceptive-may-be-ripe-makeover-sheathing-cupids
One of the most intriguing approaches to building a better condom is to reinforce the latex that modern prophylactics are made from with graphene. This material, composed of atom-thick sheets of carbon, is one of the strongest known. Its thickness (or, rather, lack of it) and its strength make it an obvious starting point for something that is supposed to be permeable to pleasure, but not to anything else. (...) Dr Ragupathy, too, intends mixing the carbon sheets with latex to create a strong composite material. But he also proposes to adsorb chemicals such as spermicides, antiviral agents and even flavourings onto the graphene. Some of these are already used in condoms, but at the moment they have only the smooth surface of the latex to stick to. Add graphene, and that surface becomes much rougher (and its area much larger) at a microscopic level, meaning more chemicals can be retained on it.
Composites, or a Dreamliner in the bedroom ;)