Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Multichromophoric systems measurements

The dye-loaded dendrimer 110 can be detected by means of single-molecule fluorescence.48,57,281,282 This multichromophoric system was embedded into a thin polymeric film at very low concentrations so that individual dendrimer molecules could be studied by far-field fluorescence microscopy at room temperature. Temporal fluorescence intensity fluctuations, fluorescence spectra, and decay times were measured separately or simultaneously. Collective on/off jumps of the fluorescence intensity as well as different emissive levels were observed for single dendrimer molecules with eight perylenemonoimide chromo-... [Pg.29]

Information about the rate constant of hopping ( hopp) through excitation energy transfer can be derived from the fast anisotropy decay time (02)- In order to take into account the possibility of multiple energy transfer channels in the case of a multichromophoric system containing identical chromophores, among which efficient dipole-dipole interactions occur, the measured anisotropy decay time 02 can be related to fchopp by Eq. (5), where the value of i represents the number... [Pg.20]

See other pages where Multichromophoric systems measurements is mentioned: [Pg.4]    [Pg.16]    [Pg.19]    [Pg.76]    [Pg.1927]    [Pg.107]    [Pg.333]    [Pg.1291]    [Pg.262]    [Pg.93]   
See also in sourсe #XX -- [ Pg.20 , Pg.21 , Pg.22 , Pg.23 , Pg.24 , Pg.25 , Pg.26 , Pg.27 , Pg.28 , Pg.29 , Pg.30 , Pg.31 , Pg.32 , Pg.33 , Pg.34 , Pg.35 , Pg.36 , Pg.37 , Pg.45 , Pg.46 ]



SEARCH



Measurement systems

Measures Systems

Multichromophores

Multichromophoric systems

© 2024 chempedia.info