Fluorescence resonance energy transfer between two cationic laser dyes in presence of the series of reduced-charge montmorillonites: Effect of the layer charge

Czı́merová, Adriana; Iyi, Nobuo; Bujdák, Juraj

doi:10.1016/j.jcis.2007.10.055

Cited by 31 publications

(21 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2a. The basic trends in the MB spectra for colloids of RCMs and the changes of the spectra with time are in agreement with the results obtained with similar reaction systems, which have been studied previously [10,11,13,19]. The spectral changes with layer charge are in accordance with the theory of layer charge influence on the MB molecular aggregation [11].…”

Section: Methylene Blue Aggregationsupporting

confidence: 90%

Interaction of montmorillonite with phenothiazine dyes and pyronin in aqueous dispersions: A visible spectroscopy study

2009

View full text Add to dashboard Cite

Abstract:Layer charge is one of the key parameters used for the characterisation of expandable clay minerals, smectites. It determines most significant properties of the material which are important from the industrial application point of view. This work is related to a novel method introduced to characterize the layer charge of smectites, based on using cationic organic dyes as molecular sensors. One xanthene and four phenothiazine cationic dyes were tested using reduced charge montmorillonites (RCMs) and compared with methylene blue, which has been used most frequently. The characterization of the charge was based on the formation of molecular assemblies (H-and J-aggregates) composed by dye cations, which were easily detectable using absorption spectroscopy in the UV/VIS spectrum. More detailed characterization of the spectra required calculations of second-derivative curves. For all of the reaction systems tested in this work, the molecular aggregation increased with the layer charge of RCMs. Slight to moderate differences in the formation of dye assemblies related to the differences in the molecular structures of the individual dye cations. For example, the molecular asymmetry of azure A brought about the formation of coexistent species of similar structures. The structure of the heteroaromatic skeleton affected the extent of the aggregation and spectral changes with time. The presence of reactive, non-substituted amino groups in thionine cations probably partially decomposed in the clay mineral colloids based on high-charge RCMs. Any of the tested dyes could be used as molecular sensors for empirical characterization of the layer charge of clays taking into account the differences mentioned above.© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

show abstract

Section: Methylene Blue Aggregationsupporting

confidence: 90%

Interaction of montmorillonite with phenothiazine dyes and pyronin in aqueous dispersions: A visible spectroscopy study

2009

View full text Add to dashboard Cite

show abstract

“…In the case of laser technology, the laser output is reduced by radiation absorption owing to nonfluorescent aggregates. 7 It is well known that dye aggregates decrease the photoconversion efficiency in dye-sensitized solar cells. 8 Thus, the aggregates are not suitable for use as fluorescent labels in fluorescence analyses.…”

Section: Introductionmentioning

confidence: 99%

A red-emissive aminobenzopyrano-xanthene dye: elucidation of fluorescence emission mechanisms in solution and in the aggregate state

Kamino

Muranaka

Murakami

et al. 2013

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

We have designed and synthesized a new class of rhodamine dyes with an extended π-conjugated system and named them 3',3''-bis(oxospiroisobenzofuran)-3,7-bis(diethylamino)benzopyrano-xanthene (ABPX01) dyes. ABPX01 exhibits fluorescence emission in both dilute solution and the aggregate state, whereas conventional rhodamine dyes show aggregation-induced quenching (AIQ). The chemical species of ABPX01 in solution were determined by spectrophotometric measurements and density functional theory (DFT) calculations to study the relationship among chemical species, color, and fluorescence emission. ABPX01 has various forms: the spirolactone form (ABPX01(0)), which is colorless; and the monocationic form (ABPX01H(+)) and the dicationic form (ABPX01H(2)(2+)), which are colored. By orienting a pair of spirolactone benzene moieties differently, the stereoisomers of trans- and cis-ABPX01(0) were separated and their crystal structures determined. ABPX01H(2)(2+) was identified to be a red fluorescent species. Detailed spectroscopic and electron microscopic investigations led to the assumption that the ABPX01H(2)(2+) formed ion associates with Cl(-) as counter anions in HCl aqueous solution, and the nano- and submicrometer-sized colloidal aggregates of ABPX01 hydrochloride exhibit fluorescence emission. To further verify the aggregation-induced emission enhancement (AIEE) mechanism, ABPX01 hydrochloride was synthesized and its fluorescence was similarly checked in the powder state. AIEE in ABPX01 might be attributed to the synergistic combination of the restriction of dye-dye interaction induced dimer formation by sterically hindered ion associates and carboxylic benzene moieties, and the structural rigidity and intermolecular arrangement of the xanthene moiety. We expect that the design strategy of ABPX dyes will be extended to the development of a wide variety of functional organic-dye-based fluorophores (ODFs) with suitable fluorescence-emission controlled mechanisms for many useful applications in new electroluminescent devices.

show abstract

“…This phenomenon readily occurs between different dyes or different species of the same fluorophores interacting to the distances below 10 nm. FRET has been repeatedly observed for similar systems based on dye/clay mineral colloids [16,23]. There are coexistent species, such as monomer/J-aggregates or monomers/J-dimers in trans-or cis-DPyP/RCM colloids, respectively, which could interact with each other via FRET.…”

Section: Interpretations Of Spectral Propertiesmentioning

confidence: 86%

“…The reactions and phenomena related to photophysical and photochemical properties of heterogeneous media may be significantly different from those which are characteristics for homogeneous systems, such as solutions. Hence, the photofunctional properties of hybrid dye systems have recently been investigated in detail due to their potential applications [20][21][22][23]. The study of the photoprocesses of organic photoactive compounds can lead to a wide variety of useful applications in photochemically controlled reactions, construction of molecular devices for optics, solid-state lasers, photodynamic therapy of cancer, etc.…”

Section: Introductionmentioning

confidence: 99%

Study of spectral behaviour and optical properties of cis/trans-bis(N-methylpyridinium-4-yl)diphenyl porphyrin adsorbed on layered silicates

Čeklovský

Takagi

Bujdák

2011

Journal of Colloid and Interface Science

Self Cite

View full text Add to dashboard Cite

Fluorescence resonance energy transfer between two cationic laser dyes in presence of the series of reduced-charge montmorillonites: Effect of the layer charge

Cited by 31 publications

References 37 publications

Interaction of montmorillonite with phenothiazine dyes and pyronin in aqueous dispersions: A visible spectroscopy study

Interaction of montmorillonite with phenothiazine dyes and pyronin in aqueous dispersions: A visible spectroscopy study

A red-emissive aminobenzopyrano-xanthene dye: elucidation of fluorescence emission mechanisms in solution and in the aggregate state

Study of spectral behaviour and optical properties of cis/trans-bis(N-methylpyridinium-4-yl)diphenyl porphyrin adsorbed on layered silicates

Contact Info

Product

Resources

About