I don't think that a "thing" like crystals will ever be the cure for AIDS/HIV. The most promising cure potential for AIDS comes from a mistake or odd happen chance where a man in Germany received a bone marrow transplant from a person with a rare gene strain that is basically immune to HIV. This ended up either curing his HIV or killing it off so much that it is undetectable.
http://www.medicalnewstoday.com/articles/262882.php