Photochromic–fluorescent–plasmonic nanomaterials: towards integrated three-component photoactive hybrid nanosystems

Ouhenia-Ouadahi, Karima; Yasukuni, Ryohei; Yu, Peng; Laurent, Guillaume; Pavageau, C.; Grand, Johan; Guérin, Juliette; Léaustic, Anne; Félidj, Nordin; Aubard, J.; Nakatani, Keitaro; Métivier, Rémi

doi:10.1039/c4cc02179g

Cited by 25 publications

(20 citation statements)

References 40 publications

(11 reference statements)

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“…These concepts are developed quantitatively in the following sections. We note that enhanced backconversion of cPC has been achieved with plasmonic enhancement from gold nanoparticles and shown to be dependent on the distance from the nanoparticle surface 21,22 .…”

Section: Design Of Psqd Nanoparticles With Photochromic Acceptorsmentioning

confidence: 80%

Photoswitchable semiconductor nanocrystals with self-regulating photochromic Förster resonance energy transfer acceptors

et al. 2015

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Photoswitchable molecules and nanoparticles constitute superior biosensors for a wide range of industrial, research and biomedical applications. Rendered reversible by spontaneous or deterministic means, such probes facilitate many of the techniques in fluorescence microscopy that surpass the optical resolution dictated by diffraction. Here we have devised a family of photoswitchable quantum dots (psQDs) in which the semiconductor core functions as a fluorescence donor in Förster resonance energy transfer (FRET), and multiple photochromic diheteroarylethene groups function as acceptors upon activation by ultraviolet light. The QDs were coated with a polymer bearing photochromic groups attached via linkers of different length. Despite the resulting nominal differences in donor-acceptor separation and anticipated FRET efficiencies, the maximum quenching of all psQD preparations was 38±2%. This result was attributable to the large ultraviolet absorption cross-section of the QDs, leading to preferential cycloreversion of photochromic groups situated closer to the nanoparticle surface and/or with a more favourable orientation.

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Section: Design Of Psqd Nanoparticles With Photochromic Acceptorsmentioning

confidence: 80%

Photoswitchable semiconductor nanocrystals with self-regulating photochromic Förster resonance energy transfer acceptors

et al. 2015

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“…Also, gold nanorods can be coated with silica and functionalized with grafted fluorescent and photochromic derivatives (Figure 19 bottom). [204] Spectroscopic investigations demonstrated that cross-coupled interactions between plasmonic, photochromic, and fluorescence properties play a major role in such nanosystems, depending on the thickness of the silica spacer, leading to multi-signal photoswitchability.…”

Section: Figure 12mentioning

confidence: 99%

Optical Properties of Hybrid Organic‐Inorganic Materials and their Applications

Parola

Julián‐López

Carlos

et al. 2016

Adv Funct Materials

244

116

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Research on hybrid inorganic‐organic materials has experienced an explosive growth since the 1980s, with the expansion of soft inorganic chemistry based processes. Indeed, mild synthetic conditions, low processing temperatures provided by “chimie douce” and the versatility of the colloidal state allow for the mixing of the organic and inorganic components at the nanometer scale in virtually any ratio to produce the so called hybrid materials. Today a high degree of control over both composition and nanostructure of these hybrids can be achieved allowing tunable structure‐property relationships. This, in turn, makes it possible to tailor and fine‐tune many properties (mechanical, optical, electronic, thermal, chemical…) in very broad ranges, and to design specific multifunctional systems for applications. In particular, the field of “Hybrid‐Optics” has been very productive not only scientifically but also in terms of applications. Indeed, numerous optical devices based on hybrids are already in, or very close, to the market. This review describes most of the recent advances performed in this field. Emphasis will be given to luminescent, photochromic, NLO and plasmonic properties. As an outlook we show that the controlled coupling between plasmonics and luminescence is opening a land of opportunities in the field of “Hybrid‐Optics”.

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“…The black curve is for the sample with GNRs 1, red curve for GNRs 2, and green curve for GNRs 3 concentration in the dried polymer is calculated to 9 × 10 −2 mol L −1 . Moreover, in other study, the samples were considered as consisting of isolated nanoparticles whether they were in solution [11,26] or deposited on a glass substrate [25]. They never exhibit coupling SPR modes which are present in our case.…”

Section: Resultsmentioning

confidence: 98%

“…In such cases, they observed the same reversible modifications, namely a broadening and a shifting of the main SPR band. Only few works report about the coupling of gold nanorods and photochromic molecules [26]. In such study, both the transverse and the longitudinal SPR modes were modified by the photochromic process in the wavelength range where these SPR bands overlap the absorption band of the colored form of the photochromic compound.…”

Section: Resultsmentioning

confidence: 99%

“…Compared to this present work, the concentration of the photochromic molecules was pretty much higher. Sometimes, the compound was directly grafted on the gold nanoparticles [11,26] or directly deposited by thermal evaporation ensuring a direct interaction of the photochromic molecule and the SPR modes. In our case, the spin-coating deposition process of B2629 in PMMA matrix ensures an average repartition of the photochromic molecule but at low concentration and not in direct interaction with the SPR modes, due to the polymer matrix.…”

Section: Resultsmentioning

confidence: 99%

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Importance of Gold Nanorods’ Aggregation in Surface Plasmon Coupling with a Photochromic Film in Hybrid Structures

2015

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In this paper, hybrid samples composed of photochromic film deposited on glass substrates functionalized with gold nanorods were synthesized. Three samples of gold nanorods with different aspect ratios were produced and characterized by electron microscopy and extinction spectroscopy. The rod populations were chosen to have more or less overlap between the two surface plasmon resonance bands and the absorption band of the colored form of the photochromic compounds which is commercially available. Deposition of the nanoparticles on glass substrate exhibits a new surface plasmon resonance coupling band coming from their side-by-side organization. Spectroscopic studies of the photoisomerization process of photochromic film spin-coated on the gold nanorods show reversible interaction between photochromism and plasmonic properties. Despite such coupling has been previously reported emphasizing the main role of the bands overlapping, in this paper, we clearly show that the surface resonance coupling band is the key parameter to monitor the photochromic process. This result emphasizes the importance of coupling nanoparticles to increase their sensing potential and interaction with photochromic molecules.

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Photochromic–fluorescent–plasmonic nanomaterials: towards integrated three-component photoactive hybrid nanosystems

Cited by 25 publications

References 40 publications

Photoswitchable semiconductor nanocrystals with self-regulating photochromic Förster resonance energy transfer acceptors

Photoswitchable semiconductor nanocrystals with self-regulating photochromic Förster resonance energy transfer acceptors

Optical Properties of Hybrid Organic‐Inorganic Materials and their Applications

Importance of Gold Nanorods’ Aggregation in Surface Plasmon Coupling with a Photochromic Film in Hybrid Structures

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