One-particle correlation function in evanescent wave dynamic light scattering

Light-sensitive self-assembling molecular systems display well-defined and persistent oscillations in the homodyne intensity correlation function after irradiation.

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Dynamic Light Scattering Measurements for Soft Materials on Solid Substrates: Employing Evanescent-wave Illumination and Dark-field Collection with a High Numerical Aperture Microscope Objective

Analytical Sciences ◽

10.2116/analsci.20p068 ◽

2020 ◽

Vol 36 (10) ◽

pp. 1211-1215

Author(s):

Toshinori MORISAKU ◽

Miki SUNADA ◽

Atsushi MIYAZAKI ◽

Takaya SAKAI ◽

Keiko MATSUO ◽

...

Keyword(s):

Light Scattering ◽

Dynamic Light Scattering ◽

Evanescent Wave ◽

Numerical Aperture ◽

Soft Materials ◽

Dark Field ◽

Field Collection ◽

High Numerical Aperture ◽

Solid Substrates ◽

Scattering Measurements

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Dynamic Light Scattering from Polymer Solutions: The Subtraction Technique

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19951941 ◽

1995 ◽

Vol 60 (11) ◽

pp. 1941-1949 ◽

Cited By ~ 8

Author(s):

Petr Štěpánek ◽

Robert M. Johnsen

Keyword(s):

Correlation Function ◽

Light Scattering ◽

Dynamic Light Scattering ◽

Laplace Transformation ◽

Polymer Solutions ◽

Second Step ◽

Strong Component ◽

Subtraction Technique ◽

Inverse Laplace Transformation ◽

Semidilute Solutions

Correlation functions measured in dynamic light scattering on polymer solutions often contain a strong sharp decay which obscures and renders difficult a reliable analysis of other decay processes. We demonstrate that this problem can be circumvented by performing a two-step inverse Laplace transformation. The strong component obtained in the first step is subtracted from the correlation function which is then re-analyzed in the second step. We illustrate this technique on semidilute solutions of polystyrene in cyclohexane and tetrahydrofuran.

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On the effect of morphology and particle-wall interaction on colloidal near-wall dynamics

Soft Matter ◽

10.1039/d1sm01191j ◽

2021 ◽

Author(s):

José Alejandro Rivera-Morán ◽

Yi Liu ◽

Samuel Monter ◽

Chiao-Peng Hsu ◽

Pia Ruckdeschel ◽

...

Keyword(s):

Light Scattering ◽

Dynamic Light Scattering ◽

Evanescent Wave ◽

Brownian Dynamics ◽

Colloidal Particles ◽

Typical Size ◽

Different Types ◽

Wall Interaction ◽

Nm Range ◽

Near Wall

We investigated the near-wall Brownian dynamics of different types of colloidal particles with a typical size in the 100 nm range using evanescent wave dynamic light scattering (EWDLS). In detail...

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Investigation of the Slow Mode of Sodium Lignosulfonate under Different Temperature Conditions

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.550-553.1321 ◽

2012 ◽

Vol 550-553 ◽

pp. 1321-1326

Author(s):

Yong Qian ◽

Yong Hong Deng ◽

Xue Qing Qiu

Keyword(s):

Aqueous Solution ◽

Correlation Function ◽

Light Scattering ◽

Dynamic Light Scattering ◽

Room Temperature ◽

Size Difference ◽

Fast Mode ◽

Slow Mode ◽

Sodium Lignosulfonate ◽

Two Stages

The temperature dependence of the dynamics of sodium lignosulfonate (NaLS) solution with high salt concentration was investigated by static and dynamic light scattering. The results showed that there existed fast mode and slow mode in NaLS aqueous solution. After enough addition of salt (1.2 M NaCl), slow mode in NaLS solution disappeared when NaLS molecules became electric neutrally. On this basis, the NaLS molecules aggregated and leaded to the re-formation of slow mode if the temperature of NaLS solution was above 311.15K. There was no splitting phenomenon in correlation function and size distribution when slow mode appeared under room temperature in NaLS solution. The correlation function would split into two stages when the size difference between fast and slow modes exceeded certain limit.

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