...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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AbstractDevices and methods are disclosed for moving charged molecules through a medium by the application of a plurality of electrical fields of sufficient strength and applied for sufficient amounts of time so as to move the charged molecules through the medium. The devices although preferably small in size, preferably generate large numbers (100 or more) of electrical fields to a movement area which preferably contains a liquid buffered or gel medium. Mixtures of charged molecules are pulled through the gel by the force of the electrical fields. The fields are preferably activated simultaneously or sequentially one after another at various speeds to create complex force field distributions or moving field waves along the separation medium. Charged molecules capable of moving quickly through the gel will be moved along by the faster moving field waves and be separated from slower moving molecules. The fields can be activated by computer software and can be used to move molecules away from and toward each other to obtain rapid and complex chemical synthesis, sequencing or reaction protocols. | InventorsAssigneeApplicationNo. 487021 filed on 02/28/1990US Classes:204/458, Plural rapid changes in direction of electric field (at least 1,000 times total and at more than 1/sec) (e.g., pulsed field, etc.)204/547, Dielectrophoresis (i.e., using nonuniform electric field)204/609, Plural rapid changes in direction of electric field (at least 1,000 times total and at more than 1/sec) (e.g., pulsed field, etc.)204/643Dielectrophoretic (i.e., uses nonuniform electric field)ExaminersPrimary: Niebling, John F.Assistant: Ryser, David G. Attorney, Agent or FirmUS Patent References4471647, Gas chromatography system and detector and methodIssued on: 09/18/1984 Inventor: Jerman , et al.4474889, Miniature gas chromatograph apparatus Issued on: 10/02/1984 Inventor: Terry , et al.4740283, Pulsed-field gradient gel electrophoretic apparatus Issued on: 04/26/1988 Inventor: Laas , et al.4834862, Ampholyte separation method and apparatus Issued on: 05/30/1989 Inventor: Breiner , et al.4891120, Chromatographic separation device Issued on: 01/02/1990 Inventor: Sethi, et al.4908112, Silicon semiconductor wafer for analyzing micronic biological samples Issued on: 03/13/1990 Inventor: Pace4911817, Electrophoresis apparatus Issued on: 03/27/1990 Inventor: Kindlmann4935040Miniature devices useful for gas chromatography Issued on: 06/19/1990 Inventor: Goedert Foreign Patent References
International ClassG01N 027/26 |