Light-scattering Characteristics of Metal Nanoparticles on a Single Bacterial Cell

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, s...

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Bibliographic Details
Published in:Analytical Sciences 2016/03/10, Vol.32(3), pp.301-305
Main Authors: KINOSHITA, Takamasa, KISO, Keita, LE, Dung Q., SHIIGI, Hiroshi, NAGAOKA, Tsutomu
Format: Article
Language:English
Subjects:
Adsorption
AGGLOMERATION
Analytical Chemistry
Bacteria
Biosensing Techniques - instrumentation
Biosensing Techniques - methods
cell imaging
Chemistry
Color
Copper
Copper - chemistry
COPPER OXIDE
Copper oxides
dark-field microscopy
Gold
Gold - chemistry
Light
light-scattering
MATHEMATICAL ANALYSIS
Metal nanoparticles
Metal Nanoparticles - chemistry
Metals
MICRO ORGANISMS
Microscopy, Electron, Scanning
Nanoparticles
OXIDES
PARTICLE SIZE AND SHAPE
PARTICLES
Plasmons
Pseudomonas aeruginosa - chemistry
Pseudomonas aeruginosa - cytology
Scattering, Radiation
Silver
Silver - chemistry
Single-Cell Analysis - instrumentation
Single-Cell Analysis - methods
Surface Properties
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Description
Summary: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.
ISSN:0910-6340
1348-2246
DOI:10.2116/analsci.32.301