A nanotechnology breakthrough in batteries to power next-gen wearable sensors: batteries consisting of very thin layers of conducting polymer, attached to cellulose from common algae. The layers of conducting polymer are just 40 to 50 nanometers, or billionths of a meter, wide, coating algae cellulose fibers just 20 to 30 nanometers wide, collected into paper sheets. The batteries are said to hold 50 to 200 percent more charge than similar conducting polymer batteries, and can be recharged in as little as 11 seconds. And biodegradable! Specific uses listed were in intelligent wallpaper (!) and sports clothing. Developed at the University of Uppsala (Sweden.) Article. Pointer to the future item.