Picosecond fluorescence studies of energy transfer on the surface of poly(butyl methacrylate) latex particles

Langmuir ◽  
1993 ◽  
Vol 9 (11) ◽  
pp. 2825-2831 ◽  
Author(s):  
Kenichi Nakashima ◽  
Yuan Sheng Liu ◽  
Ping Zhang ◽  
Jean Duhamel ◽  
Jianrong Feng ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Butyl Methacrylate ◽  
Latex Particles ◽  
Fluorescence Studies

Synthesis, characterization, and energy transfer studies of dye-labeled poly(butyl methacrylate) latex particles prepared by miniemulsion polymerization

Polymer ◽  
2007 ◽  
Vol 48 (20) ◽  
pp. 5839-5849 ◽  
Author(s):  
Ghasem R. Bardajee ◽  
Cedric Vancaeyzeele ◽  
Jeffrey C. Haley ◽  
Alice Y. Li ◽  
Mitchell A. Winnik
Keyword(s):  
Energy Transfer ◽  
Miniemulsion Polymerization ◽  
Butyl Methacrylate ◽  
Latex Particles

Recent Applications of Nonradiative Energy Transfer to Polymer Studies

1993 ◽  
Vol 58 (10) ◽  
pp. 2266-2271 ◽  
Author(s):  
Herbert Morawetz
Keyword(s):  
Energy Transfer ◽  
Polymer Chain ◽  
Cluster Formation ◽  
Nonradiative Energy Transfer ◽  
Molecular Cluster ◽  
Fluorescent Labels ◽  
Latex Particles ◽  
Polymer Latex

Recent studies of polymers in solution and in bulk by energy transfer between two fluorescent labels are reviewed. Such studies are concerned with the equilibrium and dynamics of polymer chain expansion, molecular cluster formation in solution, the miscibility of polymers in bulk, and the interdiffusion of polymer latex particles.

Energy transfer in and fluorescence studies of the Eu-Tb doped BPA-phen system

2019 ◽  
Vol 66 (8) ◽  
pp. 879-885 ◽  
Author(s):  
Guangbo Xie ◽  
Haibang Zhang ◽  
Zijun Zhang ◽  
Juntong Liu ◽  
Jingjing Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Fluorescence Studies ◽  
The Eu

Picosecond Fluorescence Studies of the Surface Morphology of Charged Polystyrene Latex Particles

Langmuir ◽  
2001 ◽  
Vol 17 (9) ◽  
pp. 2617-2623 ◽  
Author(s):  
J. P. S. Farinha ◽  
M.-T. Charreyre ◽  
J. M. G. Martinho ◽  
M. A. Winnik ◽  
C. Pichot
Keyword(s):  
Surface Morphology ◽  
Polystyrene Latex ◽  
Latex Particles ◽  
Fluorescence Studies ◽  
Polystyrene Latex Particles

Energy Transfer in Organic Dendrimer Antenna Funnel and Anti-Funnel Supermolecules

1998 ◽  
Vol 543 ◽  
Author(s):  
Stephen F. Swallen ◽  
Raoul Kopelman ◽  
Jeffrey S. Moore
Keyword(s):  
Molecular Structure ◽  
Energy Transfer ◽  
Steady State ◽  
Intermolecular Interactions ◽  
Molecular Geometry ◽  
Intramolecular Energy Transfer ◽  
Fluorescence Studies ◽  
Energy Trapping ◽  
Exciton Localization ◽  
Steady State Fluorescence

AbstractThe photophysics of exciton localization and energy transfer are examined in two unique classes of phenylacetylene dendrimers. One set of supermolecules is observed to efficiently and rapidly funnel absorbed radiation toward the molecular locus, while a slight change in molecular structure creates an effective “anti-funnel”, greatly reducing the efficiency of energy trapping. Lifetime-based and steady state fluorescence studies are used to determine the rates of intramolecular energy transfer and to glean information on molecular geometry and intermolecular interactions in two solvents.

Excited State Dynamics of Novel Diporphyrins with Dissimilar Cores

1999 ◽  
Vol 03 (01) ◽  
pp. 70-77 ◽  
Author(s):  
M. RAVIKUMAR ◽  
R. P. PANDIAN ◽  
T. K. CHANDRASHEKAR
Keyword(s):  
Energy Transfer ◽  
Excited State ◽  
Excitation Wavelength ◽  
Triplet Excited State ◽  
Lifetime Measurements ◽  
Time Resolved ◽  
Fluorescence Studies ◽  
Axial Ligation ◽  
Excitation Time ◽  
The Individual

The singlet and triplet excited state properties of two diporphyrins, H 2- H and Zn - H , are described. Steady state fluorescence studies indicate that the emission of the H 2- H diporphyrin is dependent on the excitation wavelength and is dominated by the emission of the individual constituent monomers at their respective excitation. Time-resolved studies show two lifetimes ascribable to the normal and thiaporphyrin subunits. However, the emission of the Zn - H diporphyrin is dominated by the thiaporphyrin subunit irrespective of the wavelength of excitation, suggesting an energy transfer from the Zn porphyrin subunit to the thiaporphyrin subunit. Lifetime measurements in toluene show two lifetimes due to open and folded conformations, while in DMF an additional component due to axial ligation is observed. The efficiency of energy transfer is moderately higher in DMF (72%) than in toluene (68%). Triplet ESR studies on the H 2- H dimer reveal a localized triplet with ZFS parameters and ESP pattern the same as for the individual monomers. On the other hand, triplet ESR of the Zn - H diporphyrin reveals triplet characteristics of the thiaporphyrin subunit, indicating an energy transfer in the triplet state.

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