The Stöber process is a physical chemistry process for the generation of monodisperse particles of silica. The process was discovered in 1968 by Werner Stöber et al ... https://en.wikipedia.org/wiki/St%C3%B6ber_process
Original Article from The New England Journal of Medicine — Compensatory Enlargement of Human Atherosclerotic Coronary Arteries http://www.nejm.org/doi/full/10.1056/NEJM198705283162204