title: Smart, reusable labels for assessing self-cleaning films.
abstract: Novel, reversible (reusable) photocatalyst activity indicator labels, which undergo a rapid colour change when in contact with a photocatalytic film via the photoreduction of methylene blue contained within the label's adhesive, are explored as a method for assessing the activity of self-cleaning glass in situ and the laboratory, using digital photography.
authors.affiliation: Department of Chemistry and Chemical Engineering, Queen's University of Belfast, University Road, Belfast, UK. andrew.mills@qub.ac.uk.
authors.forename: A
authors.initials: A
authors.lastname: Mills
authors.forename: N
authors.initials: N
authors.lastname: Wells