"In a study published Wednesday in Science Translational Medicine, researchers found that by adding trace amounts of silver to common antibiotics, the medications became up to 1,000 times more effective in fighting infections in mice.
Also, study authors said they were surprised and excited to find that the silver-antibiotic combo was able to "resensitize" bacteria that had developed a resistance to the drugs. It even extended the effectiveness of the commonly used antibiotic vancomycin to a class of bacteria that was previously immune to its effects. "
http://www.thespec.com/
http://www.scientificamerican.com/article.cfm?id=silver-makes-antibiotics-thousands-of-times-more-effective
