scholarly journals Dark States in Ionic Oligothiophene Bioprobes—Evidence from Fluorescence Correlation Spectroscopy and Dynamic Light Scattering

2014 ◽  
Vol 118 (22) ◽  
pp. 5924-5933 ◽  
Author(s):  
Heike Hevekerl ◽  
Jens Wigenius ◽  
Gustav Persson ◽  
Olle Inganäs ◽  
Jerker Widengren
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Fluorescence Correlation Spectroscopy ◽  
Correlation Spectroscopy ◽  
Fluorescence Correlation

scholarly journals Optical detection of gadolinium(iii) ions via quantum dot aggregation

RSC Advances ◽  
2017 ◽  
Vol 7 (40) ◽  
pp. 24730-24735 ◽  
Author(s):  
Steven D. Quinn ◽  
Steven W. Magennis
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Quantum Dot ◽  
Fluorescence Correlation Spectroscopy ◽  
Correlation Spectroscopy ◽  
Trivalent Metal ◽  
Fluorescence Correlation ◽  
Trivalent Metal Ions ◽  
Cdte Quantum Dot ◽  
Fluorescence Dynamic

CdTe quantum dot aggregation induced by trivalent metal ions is followed using fluorescence, dynamic light scattering and fluorescence correlation spectroscopy.

scholarly journals Characterizing nanoparticles in complex biological media and physiological fluids with depolarized dynamic light scattering

Nanoscale ◽  
2015 ◽  
Vol 7 (14) ◽  
pp. 5991-5997 ◽  
Author(s):  
S. Balog ◽  
L. Rodriguez-Lorenzo ◽  
C. A. Monnier ◽  
M. Obiols-Rabasa ◽  
B. Rothen-Rutishauser ◽  
...  
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Fluorescence Correlation Spectroscopy ◽  
Biological Fluids ◽  
Correlation Spectroscopy ◽  
Biological Media ◽  
Fluorescence Correlation ◽  
Depolarized Scattering

Characterization of NPs in physiological and biological fluids is challenging, yet can be met by using depolarized scattering, offering advantages over UV-Vis and fluorescence correlation spectroscopy.

scholarly journals Determination of equilibrium and rate constants for complex formation by fluorescence correlation spectroscopy supplemented by dynamic light scattering and Taylor dispersion analysis

Soft Matter ◽  
2016 ◽  
Vol 12 (39) ◽  
pp. 8186-8194 ◽  
Author(s):  
Xuzhu Zhang ◽  
Andrzej Poniewierski ◽  
Aldona Jelińska ◽  
Anna Zagożdżon ◽  
Agnieszka Wisniewska ◽  
...  
Keyword(s):  
Light Scattering ◽  
Complex Formation ◽  
Dynamic Light Scattering ◽  
Rate Constants ◽  
Fluorescence Correlation Spectroscopy ◽  
Taylor Dispersion ◽  
Dispersion Analysis ◽  
Correlation Spectroscopy ◽  
Fluorescence Correlation

Light Scattering, Atomic Force Microscopy and Fluorescence Correlation Spectroscopy Studies of Polystyrene-block-poly(2-vinylpyridine)-block-poly(ethylene oxide) Micelles

2003 ◽  
Vol 68 (11) ◽  
pp. 2120-2138 ◽  
Author(s):  
Miroslav Štěpánek ◽  
Jana Humpolíčková ◽  
Karel Procházka ◽  
Martin Hof ◽  
Zdeněk Tuzar ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Light Scattering ◽  
Fluorescence Correlation Spectroscopy ◽  
Polymeric Nanoparticles ◽  
Correlation Spectroscopy ◽  
Force Microscopy ◽  
Fluorescence Correlation ◽  
Atomic Force ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Polymeric nanoparticles formed by triblock copolymer polystyrene-block-poly(2-vinylpyridine)-block-poly(ethylene oxide), PS-PVP-PEO, in aqueous media were studied by a combination of fluorescence correlation spectroscopy with other fluorescence techniques, light scattering and atomic force microscopy. The studied polymeric nanoparticles exist in the form of (i) core/shell micelles in acid solution at pH lower than 4.8 and (ii) three-layer onion micelles at higher pH. Since water is a very strong precipitant for PS, both types of micelles have kinetically frozen spherical PS cores. The cores of micelles in acid media are surrounded by soluble shells formed by partly protonated PVP and PEO, while the cores of micelles in alkaline media are surrounded by compact insoluble layers of deprotonated PVP and soluble PEO shells. The micellization behavior of PS-PVP-PEO micelles is accompanied by secondary aggregation of micelles, which is provoked by stirring, shaking and also by filtration of micellar solutions. Therefore fluorescence correlation spectroscopy (FCS), which, in contrast to light scattering techniques, does not require filtration, was used as the main experimental technique for the characterization of non-aggregated micelles. The binding of a fluorescence probe, octadecylrhodamine B (ORB), to polymeric micelles, was studied before the FCS study of micelles.

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