Squaraine Dye as an Exciton Trap for Cyanine J-Aggregates in a Solution

2008 ◽  
Vol 112 (51) ◽  
pp. 20458-20462 ◽  
Author(s):  
Roman S. Grynyov ◽  
Alexander V. Sorokin ◽  
Gleb Ya. Guralchuk ◽  
Svetlana L. Yefimova ◽  
Igor A. Borovoy ◽  
...  
Keyword(s):  
Squaraine Dye ◽  
J Aggregates

Interaction of semiconductor colloids with J-aggregates of a squaraine dye and its role in sensitizing nanocrystalline semiconductor films

1994 ◽  
Vol 20 (9) ◽  
pp. 927-938 ◽  
Author(s):  
Surat Hotchandani ◽  
Das Suresh ◽  
Thomas K. George ◽  
George M. V. ◽  
Kamat Prashant V.
Keyword(s):  
Semiconductor Films ◽  
Squaraine Dye ◽  
J Aggregates ◽  
Nanocrystalline Semiconductor

Light Absorption and Scattering Spectra of Gold Nanospheres Coated with TDBC J-Aggregates

2020 ◽  
Vol 47 (9) ◽  
pp. 280-284
Author(s):  
S. S. Moritaka ◽  
A. V. Mekshun ◽  
V. S. Lebedev ◽  
A. D. Kondorskii
Keyword(s):  
Light Absorption ◽  
Gold Nanospheres ◽  
Scattering Spectra ◽  
J Aggregates

Vortex-Induced Harmonic Light Scattering of Porphyrin J-Aggregates

2021 ◽  
Author(s):  
Shingo Hattori ◽  
Michèle Moris ◽  
Kazuteru Shinozaki ◽  
Kazuyuki Ishii ◽  
Thierry Verbiest
Keyword(s):  
Light Scattering ◽  
J Aggregates

scholarly journals Chitosan as a Protective Matrix for the Squaraine Dye

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1171
Author(s):  
Halina Kaczmarek ◽  
Patryk Rybczyński ◽  
Piotr Maćczak ◽  
Aleksander Smolarkiewicz-Wyczachowski ◽  
Marta Ziegler-Borowska
Keyword(s):  
Solid State ◽  
Uv Radiation ◽  
Dye Degradation ◽  
Protective Coatings ◽  
Protective Action ◽  
High Energy ◽  
Modified Chitosan ◽  
Dye Release ◽  
Squaraine Dye ◽  
Chitosan Films

Chitosan was used as a protective matrix for the photosensitive dye-squaraine (2,4-bis[4-(dimethylamino)phenyl]cyclobutane-1,3-diol). The physicochemical properties of the obtained systems, both in solution and in a solid-state, were investigated. However, it was found that diluted chitosan solutions with a few percent additions of dye show an intense fluorescence, which is suppressed in the solid-state. This is related to the morphology of the heterogeneous modified chitosan films. The important advantage of using a biopolymer matrix is the prevention of dye degradation under the influence of high energy ultraviolet (UV) radiation while the dye presence improves the chitosan heat resistance. It is caused by mutual interactions between macromolecules and dye. Owing to the protective action of chitosan, the dye release in liquid medium is limited. Chitosan solutions with a few percent additions of squaraine can be used in biomedical imaging thanks to the ability to emit light, while chitosan films can be protective coatings resistant to high temperatures and UV radiation.

scholarly journals Exploiting cyanine dye J-aggregates/monomer equilibrium in hydrophobic protein pockets for efficient multi-step phototherapy: An innovative concept for smart nanotheranostics

Nanoscale ◽  
2021 ◽  
Author(s):  
Matias Luis Picchio ◽  
Julian Bergueiro Álvarez ◽  
Stefanie Wedepohl ◽  
Roque J Minari ◽  
Cecilia Ines Alvarez Igarzabal ◽  
...  
Keyword(s):  
Indocyanine Green ◽  
Contrast Agent ◽  
Photothermal Therapy ◽  
Near Infrared ◽  
Cyanine Dye ◽  
Hydrophobic Protein ◽  
Nir Dyes ◽  
Protein Pockets ◽  
J Aggregates ◽  
Innovative Concept

After several decades of development in the field of near-infrared (NIR) dyes for photothermal therapy (PTT), indocyanine green (ICG) still remains the only FDA-approved NIR contrast agent. However, upon NIR...

Splitting in lateral shift induced by strong coupling in Kretschmann configuration involving molecular J-aggregates

2019 ◽  
Vol 33 (30) ◽  
pp. 1950370
Author(s):  
Kunwei Pang ◽  
Haihong Li ◽  
Gang Song ◽  
Pengfei Zhang
Keyword(s):  
Strong Coupling ◽  
Metal Film ◽  
Previous Experiment ◽  
Lateral Shift ◽  
Phase Method ◽  
Stationary Phase Method ◽  
Incident Wavelength ◽  
Rabi Splitting ◽  
Kretschmann Configuration ◽  
J Aggregates

Molecular J-aggregates are widely used as emitters to achieve the quantum effects, such as the strong coupling phenomenon. We investigate the lateral shift splitting/Goos–Hänchen (GH) shift splitting induced by strong coupling in Kretschmann configuration involving molecular J-aggregates by using classical methods. The optical response of molecular J-aggregates is modeled by a single Lorentzian oscillator, and Fresnel equations and the stationary phase method are employed to solve our proposed structure. Our results show that the lateral shift versus the incident wavelength shows Rabi splitting-like line shape and the reflection spectrum exhibits the strong coupling phenomenon. Based on the results of the previous experiment work, we well explain the relation between Rabi splitting and the thickness of the metal film and provide a new method to choose the parameters of the structure for experiment.

scholarly journals Approaching the strong coupling limit in single plasmonic nanorods interacting with J-aggregates

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Gülis Zengin ◽  
Göran Johansson ◽  
Peter Johansson ◽  
Tomasz J. Antosiewicz ◽  
Mikael Käll ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Strong Coupling Limit ◽  
J Aggregates
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