title: Water bath synthesis of tin oxide nanostructure coating for a molecular sensor.
abstract: Tin oxide nanostructures were fabricated using a water bath technique. The structures were modified with dye-labeled DNAs for a molecular sensor. Sensing mechanism of the sensor was based on a photoelectric conversion effect. Photoluminescence intensities from the tin oxide nanostructures reached to 16 times larger than that from SnO2:F films. High photocurrent of 5.5 x 10(-6) A and high signal-to-noise ratio of 29 were achieved in this system. Photoelectric conversion on a combination of the dye-labeled DNA and the tin oxide was an essence of the sensing system. Surface nanospaces were effectively utilized to increase photoluminescence and photocurrent.
authors.forename: Yoshitake
authors.initials: Y
authors.lastname: Masuda
authors.forename: Tatsuki
authors.initials: T
authors.lastname: Ohji
authors.forename: Kazumi
authors.initials: K
authors.lastname: Kato
mesh_terms: D002232:Carbocyanines / Q000737:chemistry; D004247:DNA / Q000737:chemistry*; D004563:Electrochemistry; D004867:Equipment Design; D005898:Glass / Q000737:chemistry; D049449:Luminescence; D053768:Metal Nanoparticles / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D015336:Molecular Probe Techniques / Q000295:instrumentation*; D049329:Nanostructures / Q000737:chemistry; D010777:Photochemistry; D012666:Semiconductors; D013056:Spectrophotometry, Ultraviolet; D013499:Surface Properties; D017971:Tin Compounds / Q000737:chemistry*; D014867:Water
chemical_list: D002232:Carbocyanines; D017971:Tin Compounds; C085321:cyanine dye 5; D014867:Water; D004247:DNA; C045358:stannic oxide