One of the most difficult hurdles to overcome is to develop a tiny device emitting deep penetrating lights, which can reach insulinomas and their metastatic sites in a minimally invasive way.
The liver is highly sensitive to all kinds of environmental toxicants, and the objective of the initial work was to develop a tiny, portable biosensor that could be used in battlefield deployment for early detection of environmental hazards from chemical and biological warfare.
A firm called eMagin, of Hopewell Junction, New York, is also trying to develop tiny OLED screens, but with an eye to the market for Internet devices and handheld computers.In collaboration with IBM, eMagin recently created a prototype OLED display for a "wearable" computer.
Earlier this year, the billionaire venture capitalist Yuri Milner said he was investing $100m in studies to develop tiny spacecraft that could be propelled across the galaxy by lasers.
David Walt, a professor of chemistry at Tufts University, is using fiber optic technology to develop tiny sensors that could be used to screen toxicants.
A large proportion of serous carcinomas have been shown to develop from tiny lesions in the fallopian tube (Cass et al, 2005; Powell et al, 2005; Finch et al, 2006; Medeiros et al, 2006; Callahan et al, 2007; Kindelberger et al, 2007), not in the ovary, and the vast majority of serous carcinomas are high grade (Shih and Kurman, 2004; Prat, 2012).
Handheld devices, for example, are being held back because battery technology has not kept pace with energy demands, so several firms are now developing tiny fuel cells to power them.
Although physicists say the technique has a way to go before it can be applied, they envision its being used for developing tiny measuring devices or to make tiny generators.
The expanding field of MEMs (micro-electromechanical machines), which is developing tiny machines to act as everything from microphones to miniature rockets, is also bumping up against the nanoworld and routinely making working parts as small as a few hundred nanometers.
Bones are always developing tiny holes which are filled in as new material grows, but as women grow older the holes are not filled in properly and the bones are weakened.
