title: Interaction between organophosphorous hydrolase and paraoxon studied by surface chemistry in situ at air-water interface.
abstract: Subphase conditions have been optimized to obtain stable organophosphorous hydrolase (OPH-EC 3.1.8.1) as Langmuir films. The Langmuir film was characterized by surface pressure and surface potential-area isotherms and UV-Vis spectroscopy in situ. The interaction of an organophosphorous compound, namely Paraoxon, with the OPH film was investigated for various surface pressures. The stability of the monolayer and the evidence of the enzyme activity at air-water interface support the use of enzyme LB films as biosensor.
authors.affiliation: Center for Supramolecular Science, Department of Chemistry, Room 315, Cox Science Building, University of Miami, P.O. Box 249118, 1301 Memorial Drive, Coral Gables, FL, 33124, USA.
authors.forename: S V
authors.initials: SV
authors.lastname: Mello
authors.forename: C
authors.initials: C
authors.lastname: Coutures
authors.forename: R M
authors.initials: RM
authors.lastname: Leblanc
authors.forename: T C
authors.initials: TC
authors.lastname: Cheng
authors.forename: V K
authors.initials: VK
authors.lastname: Rastogi
authors.forename: J J
authors.initials: JJ
authors.lastname: Defrank