title: Measurement of fluorescence in a rhodamine-123 doped self-assembled "giant" mesostructured silica sphere using a smartphone as optical hardware.
abstract: The blue OLED emission from a mobile phone was characterised, revealing a sharp emission band centred at λ = 445 nm with a 3dB bandwidth Δλ ∼ 20 nm. It was used to excite Rhodamine 123 doped within a "giant" mesostructured silica sphere during fabrication through evaporative self-assembly of silica nanoparticles. Fluorescence was able to be detected using a standard optical microscope fitted with a green transmission pass filter and cooled CCD and with 1 ms exposure time demonstrating the potential of mobile platforms as the basis for portable diagnostics in the field.
authors.affiliation: Interdisciplinary Photonic Laboratories, School of Chemistry, The University of Sydney, NSW 2006, Australia. john.canning@sydney.edu.au
authors.forename: John
authors.initials: J
authors.lastname: Canning
authors.forename: Angelica
authors.initials: A
authors.lastname: Lau
authors.forename: Masood
authors.initials: M
authors.lastname: Naqshbandi
authors.forename: Ingemar
authors.initials: I
authors.lastname: Petermann
authors.forename: Maxwell J
authors.initials: MJ
authors.lastname: Crossley
mesh_terms: D040421:Cell Phone; D034201:Computers, Handheld; D005453:Fluorescence; D020112:Rhodamine 123 / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D017216:Telemedicine
chemical_list: D020112:Rhodamine 123; D012822:Silicon Dioxide