The role of microorganisms in gold processing and recovery—A review. the past 20 years biotreatment of refractory gold ores has been developed as an industrial application and applied commercially in bioreactors and development of the biooxidation technology has been well reviewed elsewhere (see Brierley, 2008, Harvey and Bath, 2007, Ndlovu, …
Many patients receive injections of corticosteroids. A chemotherapy medicine known as fluorouracil (5-FU) can also be effective in treating raised acne scars. Some scars respond best when injections of both 5-FU and corticosteroids are used. Interferon, which is also used to treat cancer, can be effective.