Circular Dichroism of Chiral Nematic Films of Cellulose Nanocrystals Loaded with Plasmonic Nanoparticles

ACS Nano ◽  
2015 ◽  
Vol 9 (10) ◽  
pp. 10377-10385 ◽  
Author(s):  
Ana Querejeta-Fernández ◽  
Bernd Kopera ◽  
Karen S. Prado ◽  
Anna Klinkova ◽  
Myriam Methot ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Cellulose Nanocrystals ◽  
Plasmonic Nanoparticles ◽  
Chiral Nematic ◽  
Circular Dichroïsm

scholarly journals Pure circular dichroism by curved rows of plasmonic nanoparticles

2018 ◽  
Vol 8 (6) ◽  
pp. 1515 ◽  
Author(s):  
Meng Wang ◽  
Bruno Gompf ◽  
Martin Dressel ◽  
Nathalie Destouches ◽  
Audrey Berrier
Keyword(s):  
Circular Dichroism ◽  
Plasmonic Nanoparticles ◽  
Circular Dichroïsm

scholarly journals Circular dichroism mode splitting and bounds to its enhancement with cavity-plasmon-polaritons

Nanophotonics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 283-293 ◽  
Author(s):  
Denis G. Baranov ◽  
Battulga Munkhbat ◽  
Nils Odebo Länk ◽  
Ruggero Verre ◽  
Mikael Käll ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Coupled System ◽  
Plasmonic Nanoparticles ◽  
Strong Coupling Regime ◽  
Optical Cavities ◽  
Mode Splitting ◽  
Fabry Perot ◽  
Theoretical Predictions ◽  
Light Matter Interaction ◽  
Circular Dichroïsm

AbstractGeometrical chirality is a widespread phenomenon that has fundamental implications for discriminating enantiomers of biomolecules. In order to enhance the chiral response of the medium, it has been suggested to couple chiral molecules to resonant optical cavities in order to enhance the circular dichroism (CD) signal at the resonant frequency of the cavity. Here, we studied a distinctly different regime of chiral light-matter interaction, wherein the CD signal of a chiral medium splits into polaritonic modes by reaching the strong coupling regime with an optical microcavity. Specifically, we show that by strongly coupling chiral plasmonic nanoparticles to a non-chiral Fabry-Pérot microcavity one can imprint the mode splitting on the CD spectrum of the coupled system and thereby effectively shift the initial chiral resonance to a different energy. We first examined the effect with the use of analytical transfer-matrix method as well as numerical finite-difference time-domain (FDTD) simulations. Furthermore, we confirmed the validity of theoretical predictions in a proof-of-principle experiment involving chiral plasmonic nanoparticles coupled to a Fabry-Pérot microcavity.

Characterization of Tamm-Horsfall Urinary Glycoprotein

1973 ◽  
Vol 31 ◽  
pp. 420-421
Author(s):  
John P. Robinson ◽  
J. David Puett
Keyword(s):  
Electron Microscopy ◽  
Circular Dichroism ◽  
Secondary Structure ◽  
Quaternary Structure ◽  
Normal Adult ◽  
Morphological Properties ◽  
Adult Males ◽  
Circular Dichroïsm ◽  
Urinary Glycoprotein

Much work has been reported on the chemical, physical and morphological properties of urinary Tamm-Horsfall glycoprotein (THG). Although it was once reported that cystic fibrotic (CF) individuals had a defective THG, more recent data indicate that THG and CF-THG are similar if not identical.No studies on the conformational aspects have been reported on this glycoprotein using circular dichroism (CD). We examined the secondary structure of THG and derivatives under various conditions and have correlated these results with quaternary structure using electron microscopy.THG was prepared from normal adult males and CF-THG from a 16-year old CF female by the method of Tamm and Horsfall. CF female by the method of Tamm and Horsfall.

Circular dichroism spectra of adsorbed dye-aggregates

1968 ◽  
Vol 65 ◽  
pp. 146-151 ◽  
Author(s):  
G. Scheibe ◽  
O. Wörz ◽  
F. Haimerl ◽  
W. Seiffert ◽  
J. Winkler
Keyword(s):  
Circular Dichroism ◽  
Circular Dichroism Spectra ◽  
Circular Dichroïsm
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