Khateb, Heba, Hook, Andrew L., Kern, Stefanie, Watts, Julie A., Singh, Sonali, Jackson, Darryl, Marinez-Pomares, Luisa, Williams, Paul, Alexander, Morgan R., "Identification of Pseudomonas aeruginosa exopolysaccharide Psl in biofilms using 3D OrbiSIMS", Biointerphases, 2023