The resulting image is then analyzed to determine sequences contained in the target DNA molecule or quantify the amount of specific target sequences. The flowthrough genosensor appears to be a significant step in pursuit of biology s holy grail. Nose on a Chip Kim Young examines the nose on a chip, which uses cantilevers coated with different chemicals to detect multiple gases. When he arrives home from vacation, Clarence s smart alarm system deluges him with messages. Natural gas is leaking from the furnace.
Smoke is present in a guest bedroom.
Food is spoiling in the refrigerator. In the garage, a paint can lid apparently has come loose, and a container of insecticide is leaking. Such a warning capability may be possible someday, thanks to ORNL s invention of a nose on a chip. This wireless electronic nose can simultaneously detect and measure a variety of vapors in the air and signal a receiver to sound an alarm or display a message. Already tests of this first battery-operated cantilever array sensor chip set have shown it can simultaneously sense various combinations of hydrogen, nitric oxide, mercury vapor, and alkane thiols in the air.