The Trustees of the Stevens Institute of Technology
대리인 / 주소
Greenberg Traurig, LLP
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
Monatomic metal anions are generated in the gas phase by collision-induced dissociation of the anions 26 of a dicarboxylic acid salt of the metal. This method is applicable to a number of metals, including sodium, potassium, cesium, and silver. The metal anions produced in this way can subsequently
Monatomic metal anions are generated in the gas phase by collision-induced dissociation of the anions 26 of a dicarboxylic acid salt of the metal. This method is applicable to a number of metals, including sodium, potassium, cesium, and silver. The metal anions produced in this way can subsequently be stored in an ion trap 88 or transmitted as a focused beam 52. The metal anions of this invention undergo collisional cooling and have low kinetic energy, which distinguishes them from ions produced by other high energy processes (with kinetic energy in excess of 1 keV). Metal anions so produced can be used to pattern nanoscale features on surfaces 56, used as electron transfer agents or reducing agents in ion-molecule reactions, or used for surface 122 modification of biomaterials 124.
대표청구항▼
1. A method of producing gas-phase metal anions, comprising the steps of: generating a spray of negatively-charged droplets [22] from a solution [20] including metal salts of dicarboxylic acids dissolved in a solvent, thereby producing metal cations and anions including metal dicarboxylate anions in
1. A method of producing gas-phase metal anions, comprising the steps of: generating a spray of negatively-charged droplets [22] from a solution [20] including metal salts of dicarboxylic acids dissolved in a solvent, thereby producing metal cations and anions including metal dicarboxylate anions in said negatively-charged droplets [22];evaporating the solvent, thereby producing gas-phase unsolvated metal cations [26] and unsolvated anions [26] including unsolvated metal dicarboxylate anions [44];electromagnetically separating the unsolvated metal dicarboxylate anions from others of the unsolvated anions [26] and the unsolvated metal cations [26];colliding the unsolvated metal dicarboxylate anions [44] with a non-reactive collision gas [46], thereby causing at least a portion of the unsolvated metal dicarboxylate anions [44] to dissociate into gas-phase metal anions and carbon compounds; andelectromagnetically isolating the metal anions. 2. The method of claim 1, further including the step of electromagnetically collimating the gas-phase metal anions into a beam [52] of the gas-phase metal anions. 3. The method of claim 1, wherein the metal is selected from the group of metals that form monovalent cations in aqueous solution with dicarboxylic acids. 4. The method of claim 1, wherein the metal is selected from the group consisting of sodium, potassium, cesium, silver, copper, cobalt, gold, thallium, gallium, and indium. 5. The method of claim 1, wherein the dicarboxylic acid is selected from the group consisting of oxalic acid, maleic acid, fumaric acid, succinic acid, malonic acid, malic acids, tartaric acids, glutamic acids and aspartic acids. 6. The method of claim 1, wherein the solvent is selected from the group consisting of polar solvents. 7. The method of claim 6, wherein the solvent is selected from the group consisting of acetonitrile, methanol, water and mixtures thereof. 8. The method of claim 1, wherein the collision gas [46] is selected from the group consisting of helium, neon, argon, krypton, xenon and nitrogen. 9. The method of claim 1, wherein said generating step includes the step of passing the solution through a metal capillary [16] held at a high electrical potential. 10. The method of claim 9, wherein at least part of the metal capillary [16] is surrounded by a tube [18] and said evaporating step includes passing a gas through the tube [18], thus promoting desolvation of said anions and cations. 11. The method of claim 1, wherein said separating step is performed using a first electromagnetic means [38] and said isolating step is performed using a second electromagnetic means [42]. 12. The method of claim 11, wherein at least one of said first and second electromagnetic means [38, 42] includes a mass analyzer. 13. The method of claim 11, wherein at least one of said first and second electromagnetic means [38, 42] includes a quadrupole mass spectrometer. 14. The method of claim 13, wherein said quadrupole mass spectrometer is a bench-scale quadrupole mass spectrometer. 15. The method of claim 1, wherein said separating step includes the step of separating the unsolvated metal cations [26] from the unsolvated anions [26], followed by the step of separating the unsolvated metal dicarboxylate anions [44] from the others of the unsolvated anions [26].
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (3)
Capelli Christopher C. (4500 7th St. Kenosha WI 53142), Antimicrobial compositions useful for medical applications.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.