Abstract: Methods and compositions for rendering proteins directly responsive to an external signal utilizing modulators that themselves respond to the external signal and are associated with the proteins. In response to the external signal, the modulator alters physical properties of the specific protein molecule(s) with which it is associated, thereby altering the structural and functional properties thereof. The modulator may, for example, transfer applied energy to a protein, or to a portion of the protein, thereby changing the protein structure and function.
Type:
Grant
Filed:
July 13, 2001
Date of Patent:
October 11, 2005
Assignee:
Massachusetts Institute of Technology
Inventors:
Joseph M. Jacobson, John J. Schwartz, Kimberly Hamad, Shuguang Zhang
Abstract: According to the present invention, provided are a method whereby a sterilization/deodorization gas is supplied by irradiating a stabilized chlorine dioxide gel or liquid with ultraviolet radiation, and a sterilization/deodorization gas supply apparatus which comprises: a chemical container used to hold a chemical gel or liquid which is used for sterilization and deodorization, and as an insecticide or an insectifuge; an ultraviolet radiation unit for projecting ultraviolet radiation onto the chemical and for generating a dispersed gas; and a gas discharge unit for extracting from the chemical container gas elements that are to be dispersed by the ultraviolet radiation unit. With this arrangement, a chlorine dioxide gas that can effectively perform sterilization and deodorization can be easily and safely stored, handled and supplemented by employing the chemical reactive propagative effects of ultraviolet radiation.
Abstract: Chlorine dioxide is produced by subjecting a chlorite to ultraviolet radiation. The source for chlorite may be an aqueous solution of an alkali metal or alkaline earth metal chlorite. Chloride ions and/or hydrogen ions may be added to the solution.