Chemical robots under the skin
OCT 19, 2010
DOI: 10.1063/PT.5.024757
Science News : Scientists at the Johns Hopkins University have created millimeter-sized machines that operate without batteries or any other source of power. Engineer David Gracias and coworkers, who published their results in the Journal of the American Chemical Society , developed the tiny tools, which have five finger-like extensions that snap shut when exposed to a certain chemical or combination of chemicals. Their invention could have medical applications such as to biopsy tiny bits of tissue or to deliver small amounts of drugs to disease sites in the body.
© 2010 American Institute of Physics
