title: Preface.
authors.affiliation: Analytical and Material Science Division, Bausch and Lomb, Inc., Rochester, NY 14609, USA. Electronic address: andrew.hoteling@bausch.com.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Hoteling
authors.affiliation: Department of Chemistry, University of Akron, Akron, OH 44325-3601, USA.
authors.forename: Chrys
authors.initials: C
authors.lastname: Wesdemiotis