Fluorescent Quantum Dots as Artificial Antennas for Enhanced Light Harvesting and Energy Transfer to Photosynthetic Reaction Centers

Nabiev, Igor; Rakovich, Aliaksandra; Sukhanova, Alyona; Лукашев, Е. П.; Zagidullin, V. E.; Pachenko, Vladimir; Rakovich, Yury; Donegan, John F.; Rubin, A. B.; Govorov, Alexander O.

doi:10.1002/ange.201003067

Cited by 15 publications

(16 citation statements)

References 23 publications

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“…Recently, strong coupling between the surface plasmons of a metallic film and b-carotene molecules was demonstrated 44 . Several studies have discussed modified absorption, emission and energy transfer in natural LHCs weakly coupled with quantum dots 45 , plasmonic particles 46 and optical cavities 47,48 .…”

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confidence: 99%

Strong coupling between chlorosomes of photosynthetic bacteria and a confined optical cavity mode

et al. 2014

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Strong exciton-photon coupling is the result of a reversible exchange of energy between an excited state and a confined optical field. This results in the formation of polariton states that have energies different from the exciton and photon. We demonstrate strong exciton-photon coupling between light-harvesting complexes and a confined optical mode within a metallic optical microcavity. The energetic anti-crossing between the exciton and photon dispersions characteristic of strong coupling is observed in reflectivity and transmission with a Rabi splitting energy on the order of 150 meV, which corresponds to about 1,000 chlorosomes coherently coupled to the cavity mode. We believe that the strong coupling regime presents an opportunity to modify the energy transfer pathways within photosynthetic organisms without modification of the molecular structure.

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Strong coupling between chlorosomes of photosynthetic bacteria and a confined optical cavity mode

et al. 2014

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“…972 The same basic principle of using the QD, with its large optical cross-section and optimized spectral emission, as the primary antenna for the PRC was explored by taking into consideration the various active subcomponents of the PRC responsible for the energy absorption and eT steps, see Figure 140A. An energy diagram of the hybrid complex was suggested with the QD supplying energy to the PRC via FRET (Figure 140B), and this was subsequently confirmed as the primary mechanism based on QD quenching and fluorescence lifetime analysis.…”

Section: Light Harvestingmentioning

confidence: 97%

Energy Transfer with Semiconductor Quantum Dot Bioconjugates: A Versatile Platform for Biosensing, Energy Harvesting, and Other Developing Applications

Spillmann²,

et al. 2016

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Luminescent semiconductor quantum dots (QDs) are one of the more popular nanomaterials currently utilized within biological applications. However, what is not widely appreciated is their growing role as versatile energy transfer (ET) donors and acceptors within a similar biological context. The progress made on integrating QDs and ET in biological configurations and applications is reviewed in detail here. The goal is to provide the reader with (1) an appreciation for what QDs are capable of in this context, (2) how this field has grown over a relatively short time span, and, in particular, (3) how QDs are steadily revolutionizing the development of new biosensors along with a myriad of other photonically active nanomaterial-based bioconjugates. An initial discussion of QD materials along with key concepts surrounding their preparation and bioconjugation is provided given the defining role these aspects play in the QDs ability to succeed in subsequent ET applications. The discussion is then divided around the specific roles that QDs provide as either Förster resonance energy transfer (FRET) or charge/electron transfer donor and/or acceptor. For each QD-ET mechanism, a working explanation of the appropriate background theory and formalism is articulated before examining their biosensing and related ET utility. Other configurations such as incorporation of QDs into multistep ET processes or use of initial chemical and bioluminescent excitation are treated similarly. ET processes that are still not fully understood such as QD interactions with gold and other metal nanoparticles along with carbon allotropes are also covered. Given their maturity, some specific applications ranging from in vitro sensing assays to cellular imaging are separated and discussed in more detail. Finally a perspective on how this field will continue to evolve is provided.

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“…[37][38][39] For these reasons, among others, they have been suggested as the active elements in many emitterbased systems. 37,[40][41][42][43][44][45][46][47][48][49][50] RESULTS AND DISCUSSIONS…”

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Plasmonic Control of Radiative Properties of Semiconductor Quantum Dots Coupled to Plasmonic Ring Cavities

2015

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(Word Style "BD_Abstract").In recent years, a lot of effort has been made to achieve controlled delivery of target particles to the hotspots of plasmonic nano-antennas, in order to probe and/or exploit the extremely large field enhancements produced by such structures. While in many cases such high fields are advantageous, there are instances where they should be avoided. In this work, we consider the implications of using the standard nanoantenna geometries when colloidal quantum dots are employed as target entities. We show that in this case, and for various reasons, dimer antennas are not the optimum choice. Plasmonic Ring Cavities are a better option despite low field enhancements, as they allow collective coupling of many quantum dots in a reproducible and

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Fluorescent Quantum Dots as Artificial Antennas for Enhanced Light Harvesting and Energy Transfer to Photosynthetic Reaction Centers

Cited by 15 publications

References 23 publications

Strong coupling between chlorosomes of photosynthetic bacteria and a confined optical cavity mode

Strong coupling between chlorosomes of photosynthetic bacteria and a confined optical cavity mode

Energy Transfer with Semiconductor Quantum Dot Bioconjugates: A Versatile Platform for Biosensing, Energy Harvesting, and Other Developing Applications

Plasmonic Control of Radiative Properties of Semiconductor Quantum Dots Coupled to Plasmonic Ring Cavities

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