title: Light-scattering Characteristics of Metal Nanoparticles on a Single Bacterial Cell.
abstract: Metal nanoparticles express unique light-scattering characteristics based on the localized surface plasmon resonance, which depends on the metal species, particle size, and aggregation state of the nanoparticles. Therefore, we focused on the light-scattering characteristics of metal nanoparticles, such as silver, gold, and copper oxide, adsorbed on a bacterium. Monodisperse silver nanoparticles expressed the strongest scattered light among them, and showed various colors of scattered light. Although a monodisperse gold nanoparticle produced monochromatic light (green color), the color of the scattered light strongly depended on the aggregation state of the nanoparticles on a bacterium. On the other hand, copper oxide nanoparticles expressed monochromatic light (blue color), regardless of their aggregation states on a bacterium. We examined details concerning the light-scattering characteristics of metal nanoparticles, and discussed the possibility of their applications to bacterial cell imaging.
authors.affiliation: Department of Applied Chemistry, Osaka Prefecture University.
authors.forename: Takamasa
authors.initials: T
authors.lastname: Kinoshita
authors.forename: Keita
authors.initials: K
authors.lastname: Kiso
authors.forename: Dung Q
authors.initials: DQ
authors.lastname: LE
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Shiigi
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Nagaoka
mesh_terms: D000327:Adsorption; D015374:Biosensing Techniques / Q000295:instrumentation / Q000379:methods*; D003300:Copper / Q000737:chemistry; D006046:Gold / Q000737:chemistry; D008027:Light; D053768:Metal Nanoparticles / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D011550:Pseudomonas aeruginosa / Q000737:chemistry* / Q000166:cytology; D012542:Scattering, Radiation; D012834:Silver / Q000737:chemistry; D059010:Single-Cell Analysis / Q000295:instrumentation / Q000379:methods*; D013499:Surface Properties
chemical_list: D012834:Silver; D006046:Gold; D003300:Copper; C000520:cuprous oxide