Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert
Patent
1994-02-02
1999-11-16
Azpuru, Carlos
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Implant or insert
4272481, 427250, 106 105, 106 113, 106 114, 106 115, 106 116, 106 117, 106 118, 106 119, 106 121, 106723, 106733, A61F 202, C23C 1606, B05B 310
Patent
active
059853085
ABSTRACT:
Production of an anti-microbial effect in an alcohol or water based electrolyte is achieved by preparing silver materials that form complex ions other than Ag.sup.+, Ag.sup.2+, or Ag.sup.3+, and which produce an anti-microbial effect that is greater than that produced by an equivalent amount of silver as Ag.sup.+. Exemplary complex silver ions produced include Ag(CN).sub.2.sup.-, AgCN(.sub.aq)(ion pair), Ag(NH.sub.3).sub.2.sup.+, AgCl.sub.2.sup.-, Ag(OH).sub.2.sup.-, Ag.sub.2 (OH).sub.3.sup.-, Ag.sub.3 (OH).sub.4.sup.-, and Ag(S.sub.2 O.sub.3).sub.2.sup.3-. The silver materials may be prepared as powders or as solutions or suspensions containing the complex silver ions. The silver materials might also be prepared as coatings, foils, powders, or fine grain or nanocrystalline powders, which are formed with atomic disorder to provide sustained release of the complex silver ions.
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Apte Prasad Shrikrishna
Burrell Robert Edward
Gill Kashmir Singh
Morris Larry Roy
Precht Roderick John
Azpuru Carlos
Westaim Technologies Inc.
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