New technology could help amputees feel temperature in their phantom limbs

Johns Hopkins Applied Physics Laboratory (APL) researchers have developed one of the world’s smallest, most intense and fastest refrigeration devices, the wearable thin-film thermoelectric cooler (TFTEC), and teamed with neuroscientists to help amputees perceive a sense of temperature with their phantom limbs.

Spray Tips: Spray drying

Spray drying, a method that rapidly dries aqueous or solvent-based solutions or slurries to particulate form by atomizing the liquid in a heated chamber, can be used to agglomerate fine powders and is an important method for the dehydration of fluid foods, such as milk, coffee, and egg powder extensively used in the pharmaceutical and chemical industries.