title: Cooperative photoinduced two-dimensional condensation in Langmuir films observed using nanosecond pump-probe Brewster angle microscopy.
abstract: Two-dimensional condensation was initiated in a self-assembled mixed monolayer of spiropyran and octadecanol by a nanosecond laser pulse. The dynamics of the process were monitored using nanosecond pump-probe Brewster angle microscopy. Domain growth followed a power law with a growth exponent of 0.47 at a velocity approaching 20 ms(-1). This represents a limit for the rate of longitudinal signaling of pressure waves through a self-assembled amphiphilic layer at an interface and adds to our understanding of signal transmission rates in biomimetic membranes where morphological change in one region can be signaled to a more remote region.
authors.affiliation: Institute of Materials Research and Engineering, Agency for Science Technology (A*STAR), 3 Research Link, Singapore 117602, Singapore. hobleyj@imre.a-star.edu.sg
authors.forename: Jonathan
authors.initials: J
authors.lastname: Hobley
authors.forename: Sergey
authors.initials: S
authors.lastname: Gorelik
authors.forename: Tomoya
authors.initials: T
authors.lastname: Oori
authors.forename: Shinji
authors.initials: S
authors.lastname: Kajimoto
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Fukumura
authors.forename: Jun
authors.initials: J
authors.lastname: Matsui
authors.forename: Tokuji
authors.initials: T
authors.lastname: Miyashita
mesh_terms: D001578:Benzopyrans / Q000378:metabolism*; D040761:Biomimetic Materials / Q000378:metabolism*; D007211:Indoles / Q000378:metabolism*; D007834:Lasers; D008853:Microscopy / Q000379:methods; D009574:Nitro Compounds / Q000378:metabolism*; D009829:Oleic Acids / Q000378:metabolism*
chemical_list: D001578:Benzopyrans; D007211:Indoles; D009574:Nitro Compounds; D009829:Oleic Acids; C088184:spiropyran