Results 111 to 120 of about 1,408 (127)

Laser processing in liquids: insights into nanocolloid generation and thin film integration for energy, photonic, and sensing applications. [PDF]

open access: yesBeilstein J Nanotechnol
Parameswaran Sreekala A   +6 more
europepmc   +1 more source
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Fabrication of biomass-derived polymer with dopamine and Ag nanoaggregates: Prevention of the biofilm of bacteria and catalytic degradation of organic dyes

European Polymer Journal, 2021
Abstract Efficacious and convenient removal of pollutants from wastewater is a worldwide challenge and a significant threat to public health and all ecosystem. Here in the present work, we synthesized a novel type of biomass-derived hollow polymer functionalized with dopamine (DA) and silver, named as (BHP@PDA/Ag) hollow catalyst. The biomass-derived
Saleem Raza   +4 more
openaire   +1 more source

Fabrication of Ag nanoaggregates/SiO2 yolk–shell nanoprobes for surface-enhanced Raman scattering

Journal of Industrial and Engineering Chemistry, 2015
Abstract Surface-enhanced Raman scattering (SERS) has received much attention due to ultra-high sensitivity in detection of biological and chemical analytes. When SERS is used as tagging probe, several strong points such as high sensitivity and multiplexing capability can resolved several key issues with current optical tagging materials.
Taegyu Kang   +9 more
openaire   +1 more source

Surface-Enhanced Raman Scattering from Photoreduced Ag Nanoaggregates on an Optically Trapped Single Bacterium

Bulletin of the Chemical Society of Japan, 2011
Abstract A single bacterium in an aqueous Ag nitrate solution was optically trapped by focusing a near-infrared laser beam, and then Ag nanoaggregates were formed on the bacterium by focusing a green laser beam at the bacterium. We obtained surface-enhanced Raman scattering signals from a focal area on a single bacterium.
Yasutaka Kitahama   +4 more
openaire   +1 more source

Surface-enhanced resonance Raman scattering and background light emission coupled with plasmon of single Ag nanoaggregates

The Journal of Chemical Physics, 2006
We investigated the optical properties of isolated single aggregates of Ag nanoparticles (Ag nanoaggregates) on which rhodamine 6G molecules were adsorbed to reveal experimentally a correlation among plasmon resonance Rayleigh scattering, surface-enhanced resonance Raman scattering (SERRS), and its background light emission. From the lack of excitation-
Tamitake, Itoh   +6 more
openaire   +2 more sources

Surface-Enhanced Phosphorescence Measurement by an Optically Trapped Colloidal Ag Nanoaggregate on Anionic Thiacarbocyanine H-Aggregate

The Journal of Physical Chemistry C, 2012
A citrate-reduced Ag nanoaggregate was optically trapped on a fiber-shaped H-aggregate of an anionic thiacarbocyanine dye against Coulomb repulsion by focusing a near-infrared (NIR) laser beam. As the NIR laser power increased, namely, as the Ag nanoaggregate approaches the H-aggregate, phosphorescence from the H-aggregate with the Ag nanoaggregate ...
Yasutaka Kitahama   +3 more
openaire   +1 more source

Variations in Steady-State and Time-Resolved Background Luminescence from Surface-Enhanced Resonance Raman Scattering-Active Single Ag Nanoaggregates

The Journal of Physical Chemistry B, 2006
We observed a background luminescence emission that was associated with surface-enhanced resonance Raman scattering (SERRS) of rhodamine 6G (R6G) molecules adsorbed on single Ag nanoaggregates and investigated the origin of the background luminescence.
Tamitake, Itoh   +5 more
openaire   +2 more sources

Rhodamine B isothiocyanate-modified Ag nanoaggregates on dielectric beads: A novel surface-enhanced Raman scattering and fluorescent imaging material

Biosensors and Bioelectronics, 2009
Rhodamine B isothiocyanate (RhBITC) is a prototype dye molecule that is widely used as a fluorescent tag in a variety of biological applications. We report in this work that once RhBITC is adsorbed onto Ag on silica or polystyrene beads, it exhibits not only a strong surface-enhanced Raman scattering (SERS) signal but also a measurable amount of ...
Kwan, Kim   +3 more
openaire   +2 more sources

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