Formation and stability kinetics of calcium phosphate–fetuin-A colloidal particles probed by time-resolved dynamic light scattering

Soft Matter ◽  
2011 ◽  
Vol 7 (6) ◽  
pp. 2869 ◽  
Author(s):  
Johanna Wald ◽  
Susanne Wiese ◽  
Thomas Eckert ◽  
Willi Jahnen-Dechent ◽  
Walter Richtering ◽  
...  
Keyword(s):  
Light Scattering ◽  
Calcium Phosphate ◽  
Dynamic Light Scattering ◽  
Colloidal Particles ◽  
Time Resolved ◽  
Fetuin A ◽  
Stability Kinetics ◽  
Kinetics Of

scholarly journals Improved Dynamic Light Scattering using an adaptive and statistically driven time resolved treatment of correlation data

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Alexander V. Malm ◽  
Jason C. W. Corbett
Keyword(s):  
Steady State ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Size Fraction ◽  
Power Relationship ◽  
Time Resolved ◽  
Size Fractions ◽  
Use Of Data ◽  
Primary Advantage ◽  
State Size

Abstract Dynamic Light Scattering (DLS) is a ubiquitous and non-invasive measurement for the characterization of nano- and micro-scale particles in dispersion. The sixth power relationship between scattered intensity and particle radius is simultaneously a primary advantage whilst rendering the technique sensitive to unwanted size fractions from unclean lab-ware, dust and aggregated & dynamically aggregating sample, for example. This can make sample preparation iterative, challenging and time consuming and often requires the use of data filtering methods that leave an inaccurate estimate of the steady state size fraction and may provide no knowledge to the user of the presence of the transient fractions. A revolutionary new approach to DLS measurement and data analysis is presented whereby the statistical variance of a series of individually analysed, extremely short sub-measurements is used to classify data as steady-state or transient. Crucially, all sub-measurements are reported, and no data are rejected, providing a precise and accurate measurement of both the steady state and transient size fractions. We demonstrate that this approach deals intrinsically and seamlessly with the transition from a stable dispersion to the partially- and fully-aggregated cases and results in an attendant improvement in DLS precision due to the shorter sub measurement length and the classification process used.

Dynamic light scattering by optically anisotropic colloidal particles in polyacrylamide gels

2004 ◽  
Vol 121 (18) ◽  
pp. 9103-9110 ◽  
Author(s):  
Pedro Dı́az-Leyva ◽  
Elı́as Pérez ◽  
José Luis Arauz-Lara
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Colloidal Particles ◽  
Polyacrylamide Gels

Coagulation Rate Measurements of Colloidal Particles by Simultaneous Static and Dynamic Light Scattering

Langmuir ◽  
1996 ◽  
Vol 12 (23) ◽  
pp. 5541-5549 ◽  
Author(s):  
Helmut Holthoff ◽  
Stefan U. Egelhaaf ◽  
Michal Borkovec ◽  
Peter Schurtenberger ◽  
Hans Sticher
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Colloidal Particles ◽  
Coagulation Rate

scholarly journals Characteristics and Kinetics of Phosphorus Release from Formulated Fertilizer in Clay Loam Soil

KIMIKA ◽  
2019 ◽  
Vol 30 (2) ◽  
pp. 1-4
Author(s):  
Vernadette J. Soriano ◽  
Veronica P. Migo ◽  
Monet Concepcion Maguyon-Detras ◽  
Catalino G. Alfafara
Keyword(s):  
Light Scattering ◽  
Kinetic Model ◽  
Dynamic Light Scattering ◽  
Release Kinetics ◽  
Phosphorus Release ◽  
Particle Dynamic ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Loam Soil ◽  
Kinetics Of

A kinetic study for the phosphorus release of a formulated CaHAP-Z fertilizer was done to observe its behavior when applied to clay loam soil. The study of release kinetics of CaHAP-Z was done along with CaHAP and the control fertilizer Solophos™ to determine whether the formulated fertilizer can be an alternative for the conventional fertilizer. Results showed that the formulated fertilizer CAHAP-Z contains 3.73% phosphorus with 513.10 nm particle (Dynamic Light Scattering) indicating that the formulated fertilizer can be classified as a nanofertilizer. The formulated CaHAP-Z fertilizer showed the slowest release kinetics compared to the controls. In addition, this study showed that the simple Elovich kinetic model is the general equation that best fits to describe the phosphorus release of fertilizers.

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