Förster Theory

Meer, B. Wieb van der

doi:10.1002/9783527656028.ch03

Cited by 73 publications

(86 citation statements)

References 119 publications

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“…In the non-RTP state, persistent RTP is quenched by dipoledipole energy transfer from the S 1 of D1 to the S 1 of the closed form of A [ 19 ] as well as dipole-dipole energy transfer from the T 1 of D1 to the S 1 of the closed form of A. [ 20,21 ] The spectral overlap between the fl uorescence of D1 and the absorption spectra of the closed form of A (Figure 3 ) suggests that energy transfer can occur by dipole-dipole interaction from the S 1 of D1 to the S 1 of the closed form of A.…”

Section: Quenching Mechanism In the Non-rtp Statementioning

confidence: 99%

Photoreversible On–Off Recording of Persistent Room‐Temperature Phosphorescence

Katsurada

Hirata

Totani

et al. 2015

Advanced Optical Materials

112

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allow the movement of the targets to be detected, even when their motion is slow. Therefore, promising materials and techniques that enable clear detection of the local motion of an individual target independent of the persistent emission around the target and autofl uorescence still need to be designed. Photoactivated fl uorescent materials have been developed for highdensity recording and super-resolution imaging. [6][7][8][9][10][11][12] Some systems containing a fl uorescent compound and photochromic compound have also been reported. [8][9][10] The fl uorescence of the emissive materials is switched off and on by effi cient energy transfer from the fl uorescent compound to the photochromic one, which is triggered by photoisomerization of the photochromic compound. If persistent luminescent materials with the ability to be photoactivated can be prepared, the resulting photoactivated persistent emission process will potentially be useful for tracking the local movement of the target independent of other persistent emitting signals around the target as well as background autofl uorescence. However, persistent luminescence is commonly observed from rare metal-doped metal oxides [ 1,2,5 ] and it is still diffi cult to fabricate photoactivated metal oxide particles. Another approach that differs from conventional metal oxide-based persistent emitters is persistent room-temperature phosphorescence (RTP), which has a lifetime approaching one second and has recently been observed from purely organic amorphous [ 13 ] and crystalline materials. [ 14 ] The amorphous materials displaying RTP are composed of a metal-free aromatic guest in an amorphous hydroxyl steroidal host, which is rigid with an oxygen barrier because of its intermolecular hydrogen bonding. The rigidity and oxygen barrier of the steroidal host minimize the nonradiative deactivation from the triplet excited state of the purely organic guest caused by thermal relaxation and oxygen diffusion, resulting in effi cient persistent RTP from the guest species. In such amorphous host-guest materials, the rigidity and oxygen barrier of the amorphous hydroxyl steroidal host around the persistent RTP guest should remain when a small amount of photochromic compound is doped into the host as another guest. Therefore, we anticipate that effi cient energy transfer processes from the guest exhibiting persistent RTP to that exhibiting photochromism should occur in the amorphous hydroxyl steroidal host through photoisomerization of the photochromic compound, which should subsequently trigger on-off switching of persistent RTP.

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Section: Quenching Mechanism In the Non-rtp Statementioning

confidence: 99%

Photoreversible On–Off Recording of Persistent Room‐Temperature Phosphorescence

Katsurada

Hirata

Totani

et al. 2015

Advanced Optical Materials

112

View full text Add to dashboard Cite

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“…We will not expand on the derivation or historical background of this famous equation, for which we refer to van der Meer (2013) and Wouters (2013). However, it is important to discuss some of its components and their relation to the energy transfer rate, as these have direct consequences for FRET coupling between two molecules and for the expansion of FRET theory to include multiple acceptors per donor, as is the case for many implementations of multiplexed FRET.…”

Section: Background: Fret Between Two Moleculesmentioning

confidence: 99%

FRET from single to multiplexed signaling events

Bunt

Wouters

2017

Biophys Rev

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Förster resonance energy transfer (FRET) is a powerful tool for the visualization of molecular signaling events such as protein activities and interactions in cells. In its different implementations, FRET microscopy has been mainly used for monitoring single events. Recently, there has been a trend of extending FRET imaging towards the simultaneous detection of multiple events and interactions. The concomitant increase in experimental complexity requires a deeper understanding of the biophysical background of FRET. The presence of multiple acceptors for one donor affects the well-known formalism for FRET between two molecules, increasing distance sensitivity through mechanisms that have become known as the ‘antenna’ and ‘surplus’ effect. We will discuss the nature of these effects and present the imaging methods that have been used to unravel the combined transfer rates in the multi-protein interactions of multiplexed FRET experiments. Multiplexing strategies are becoming invaluable analytical tools for the elucidation of biological complexes and for the visualization of decision points in cellular signaling networks in physiological and pathological conditions.

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“…FRET involves non-radiative electronic energy transfer between two chromophores via long-range dipole-dipole coupling. 31,32 For efficient FRET between donor and acceptor dyes, certain criteria must be met: good spectral overlap between the donor's emission…”

Section: Spectroscopy Of the Organic Dyes In Solutionmentioning

confidence: 99%

Suppressing Förster Resonance Energy Transfer between Organic Dyes on a Cosensitized Metal Oxide Surface

Dryza

Bieske

2014

J. Phys. Chem. C

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Time-resolved fluorescence spectroscopy is used to investigate the efficiency of Förster resonance energy transfer (FRET) between two different types of organic dye sensitizers bound to zirconia nanoparticles. The co-sensitization scheme involves using the IR125 dye as the FRET acceptor and either the D149 dye or D35 dye as the FRET donor, with the FRET parameters determined by monitoring the donor dye's excited state lifetime in the absence and presence of the acceptor dye. The FRET rate is found to be faster for the D149+IR125 pair than for the D35+IR125 pair. From the FRET quantum yields, the Förster distances for the D149+IR125 and D35+IR125 pairs are estimated to be 3.5 and 2.6 nm, respectively. Analysis of the data, in conjunction with time-dependent density functional theory calculations, leads to the conclusion that the variation in the Förster distances is dictated mainly by differences in the donor-acceptor orientation factors. For D149 the rhodanine acetic acid binding group constrains the dye to lie almost parallel to the surface, whereas the cyanoacrylic acid binding group of D35 causes the dye to sit almost perpendicular to the surface. Because IR125 lies parallel to the surface, due to the two sulfonate binding groups, there is better alignment of the transition dipole moments for the D149+IR125 pair than for the D35+IR125 pair. Deliberately choosing dyes with binding motifs that misalign the donor-acceptor transition dipole moments may be an effective strategy for suppressing FRET within dye-sensitized solar cells to enhance their efficiency.

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Förster Theory

Cited by 73 publications

References 119 publications

Photoreversible On–Off Recording of Persistent Room‐Temperature Phosphorescence

Photoreversible On–Off Recording of Persistent Room‐Temperature Phosphorescence

FRET from single to multiplexed signaling events

Suppressing Förster Resonance Energy Transfer between Organic Dyes on a Cosensitized Metal Oxide Surface

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