Femtosecond multicolor transient absorption spectroscopy of colloidal silver nanoparticles

TiO2 nanoparticle enhanced photodynamic inhibition of pathogens

“…Efforts are underway to construct a new generation of photosensitizes on the basis of nanoparticles, such as TiO 2 , Ag, Au, and SiO 2 . Nanoparticle metal oxides represent a new class of important materials that are increasingly being developed for use in research and health-related applications [4][5][6][7][8]. For example, a low-concentration hydrogen peroxide solution containing a titanium dioxide (TiO 2 ) is used as a safe office bleaching agent [9][10][11][12][13].…”

Photoinitiated Energy Transfer in Porous‐Cage‐Stabilised Silver Nanoparticles

“…This is then replaced by a weak bleach signal after 50 ps which persists for approximately 1 ns, concordant with previous TA analysis of Ag nanoparticles (Figure S16). [31] These features are not readily observed in the TA spectrum of Ag@PB-2r when pumped at 420 nm due to the large detuning in the Ag@PB-2r absorption band at 460 nm.…”

Dynamic optical properties of amorphous diamond-like carbon nanocomposite films doped with Cu and Ag nanoparticles

“…According to the previous studies performed with Ag and Cu nanoparticles embedded in glass matrix or solutions [8][9][10][11][12][13][14][15] electron dynamics in such system in the frequency range close to LSP resonance is defined by several processes such as decoherence of surface plasmons, electron thermalization, electron-lattice relaxation, vibrational dynamics and energy transfer to the matrix. It should be noted that for the silver nanoparticles strong size dependent optical resonance in the visible spectral range (1.8 -3 eV), i.e.…”