Donor–Acceptor Random Copolyesters containing Perylenebisimide (PBI) and Oligo(p-phenylene vinylene) (OPV) by Melt Condensation Polymerization: Energy Transfer Studies

2013 ◽  
Vol 117 (43) ◽  
pp. 13710-13722 ◽  
Author(s):  
S. Kumari Nisha ◽  
S. K. Asha
Keyword(s):  
Energy Transfer ◽  
Phenylene Vinylene ◽  
Condensation Polymerization ◽  
Donor Acceptor ◽  
Melt Condensation

Quantum Dot Bioconjugates as Energy Donors in Fluorescence Resonance Energy Transfer Assays

2003 ◽  
Vol 773 ◽  
Author(s):  
Aaron R. Clapp ◽  
Igor L. Medintz ◽  
J. Matthew Mauro ◽  
Hedi Mattoussi
Keyword(s):  
Energy Transfer ◽  
Quantum Dot ◽  
Organic Dyes ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Genetically Engineered ◽  
Molar Ratio ◽  
Binding Assays ◽  
Specific Sequence ◽  
Donor Acceptor

AbstractLuminescent CdSe-ZnS core-shell quantum dot (QD) bioconjugates were used as energy donors in fluorescent resonance energy transfer (FRET) binding assays. The QDs were coated with saturating amounts of genetically engineered maltose binding protein (MBP) using a noncovalent immobilization process, and Cy3 organic dyes covalently attached at a specific sequence to MBP were used as energy acceptor molecules. Energy transfer efficiency was measured as a function of the MBP-Cy3/QD molar ratio for two different donor fluorescence emissions (different QD core sizes). Apparent donor-acceptor distances were determined from these FRET studies, and the measured distances are consistent with QD-protein conjugate dimensions previously determined from structural studies.

Efficient Energy Transfer in Mixed Columnar Stacks of Hydrogen-Bonded Oligo(p-phenylene vinylene)s in Solution

2004 ◽  
Vol 43 (15) ◽  
pp. 1976-1979 ◽  
Author(s):  
Freek J. M. Hoeben ◽  
Laura M. Herz ◽  
Clément Daniel ◽  
Pascal Jonkheijm ◽  
Albertus P. H. J. Schenning ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Phenylene Vinylene ◽  
Efficient Energy Transfer ◽  
Efficient Energy ◽  
Hydrogen Bonded

Diffusion modulated donor–acceptor energy transfer in a disordered system

1980 ◽  
Vol 72 (6) ◽  
pp. 3528-3538 ◽  
Author(s):  
Roy A. Auerbach ◽  
G. Wilse Robinson ◽  
Robert W. Zwanzig
Keyword(s):  
Energy Transfer ◽  
Disordered System ◽  
Donor Acceptor

Orientation Dependence of Energy Transfer in an Anthracene-Porphyrin Donor-Acceptor System

2001 ◽  
Vol 113 (19) ◽  
pp. 3733-3736 ◽  
Author(s):  
L. Giribabu ◽  
A. Ashok Kumar ◽  
V. Neeraja ◽  
Bhaskar G. Maiya
Keyword(s):  
Energy Transfer ◽  
Orientation Dependence ◽  
Donor Acceptor

Controlling fluorescence resonance energy transfer of donor–acceptor dyes by Diels–Alder dynamic covalent bonds

2021 ◽  
Vol 57 (26) ◽  
pp. 3275-3278
Author(s):  
Yanhui Cui ◽  
Fen Li ◽  
Xin Zhang
Keyword(s):  
Energy Transfer ◽  
Fluorescence Resonance Energy Transfer ◽  
Aromatic Amine ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Diels Alder ◽  
Covalent Bonds ◽  
Donor Acceptor ◽  
Fluorescence Resonance ◽  
Mutual Conversion

Two new dyes, consisting of an aromatic amine donor and dansyl acceptor connected by Diels–Alder bonds, display a switchable energy transfer. Dynamic covalent properties enable the mutual conversion of the two dyes by maleimide exchanges.

Ultrafast Energy And Electron Transfer In Conjugated Oligomer-Fullerene Molecules

2001 ◽  
Vol 665 ◽  
Author(s):  
P.A. van Hal ◽  
R.A.J. Janssen ◽  
G. Lanzani ◽  
G. Cerullo ◽  
M. Zavelani-Rossi ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Time Constant ◽  
Transfer Reaction ◽  
Polar Solvent ◽  
Phenylene Vinylene ◽  
Intramolecular Electron Transfer ◽  
Pump Probe ◽  
Energy And Electron Transfer ◽  
Probe Spectroscopy

ABSTRACTThe intramolecular photoinduced energy and electron transfer within a fullereneoligothiophene-fullerene triad with nine thiophene units (C60-9T-C60) and an oligo(p-phenylene vinylene)-fullerene dyad with four phenyl groups (OPV4-C60) is investigated with femtosecond pump-probe spectroscopy with sub-10 fs and 200 fs time resolution in solvents of different polarity. Photoexcitation of the π-conjugated oligomer moiety in the triad and dyad results in an ultrafast singlet-energy transfer reaction to create the fullerene singlet-excited state with a time constant of 150-190 fs, irrespective of the polarity of the medium. In a polar solvent, intramolecular electron transfer occurs from the oligomer moiety to the C60 moiety with a time constant of 10-13 ps as a secondary reaction, subsequent to the ultrafast singlet-energy transfer. The charge-separated state has a lifetime of 50-80 ps and recombines to the ground state.

Informative secondary chiroptics in binary molecular organogel systems for donor–acceptor energy transfer

2011 ◽  
Vol 52 (31) ◽  
pp. 4030-4035 ◽  
Author(s):  
Koji Miyamoto ◽  
Hirokuni Jintoku ◽  
Tsuyoshi Sawada ◽  
Makoto Takafuji ◽  
Takashi Sagawa ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Donor Acceptor
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