title: Citric acid adsorption on TiO2 nanoparticles in aqueous suspensions at acidic and circumneutral pH: surface coverage, surface speciation, and its impact on nanoparticle-nanoparticle interactions.
authors.affiliation: Department of Chemistry, University of Iowa, Iowa City, Iowa 52246, USA.
authors.forename: Imali A
authors.initials: IA
authors.lastname: Mudunkotuwa
authors.forename: Vicki H
authors.initials: VH
authors.lastname: Grassian