Keys to solving scientific problems - Dynamic Light Scattering and Zeta potential

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00:00:00 Keys to Solving Scientific Problems -Dynamic Light Scattering and Zeta Potential
00:02:47 Overview
00:06:25 Zetasizer: Where is it Used?
00:08:15 Research projects and applications?
00:10:03 Dynamic, Static & Electrophoretic Light Scattering
00:14:43 The Zetasizer ZS, Pro and Ultra
00:16:37 Malvern Panalytical Zetasizer
00:16:42 Untitled
00:18:48 Components of the DLS
00:19:15 The Correlation Function
00:19:53 Intensity Fluctuations, Correlation & Size Distributions
00:21:07 The Correlation Function
00:24:41 Large Z-Average Values
00:26:24 Data Interpretation:Results
00:27:43 Data Interpretation
00:30:18 Distributions from DLS
00:32:55 How does this affect real samples?
00:33:32 How does this affect real samples?
00:33:53 How does this affect real samples?
00:34:50 Malvern Panalytical Zetasizer
00:35:01 Application Example: Sucrose = sub-nm
00:35:35 Protein Quaternary Structure
00:37:22 Effect of Storage Conditions on Size and PDI
00:40:42 Aggregation Kinetics
00:41:16 Protein Thermal Stability
00:42:22 DLS Summary
00:43:41 What is Zeta Potential?
00:45:22 Measuring Zeta Potential
00:46:56 Electrophoretic Light Scattering (ELS)
00:48:19 Optical Configuration of the Zetasizer
00:48:57 Zeta Potential
00:51:46 Multicomponent Products & Film Formation
00:52:54 Formulated Products - Applications
00:53:07 Formulations
00:54:21 Surface Activity of Surfactant
00:55:09 Coating Defects
00:55:45 Coating Effiiciency
00:56:25 Water Treatment
00:56:36 Coagulation Control in Water Treatment
00:58:09 Charge and Coagulation of Particulates
00:58:42 Coagulation Control in Water Treatment
00:59:10 Untitled
01:00:56 Turbidity and Zeta Potential
01:01:25 Evaluating coagulant impact ACH & Polymer
01:02:37 Monitoring Zeta Potential Real Time
01:04:08 New Zetasizer Pro & Ultra
01:04:20 The New Zetasizer
01:06:23 Sample-Centric Workflow
01:07:19 Conclusion
01:10:07 Thank You for Your Attention
01:10:21 Contact information

This introductory lecture will review dynamic light scattering and zeta potential measurements. 

We will review sizing measurements by dynamic light scattering, introduce the utility of light scattering measurements, provide useful tips for analyzing DLS measurement results and provide example data from a variety of applications. 

An overview of zeta potential will also be discussed. Zeta potential is a function of both the particle surface and the dispersant and provides information about interfacial behavior important for formulated products. Another important application for zeta potential is during the clarification/treatment of drinking water.


  • Ana Morfesis Ph.D.

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Who should attend?

Anyone that has interest in the sizing of nanomaterials, understanding of the interface for formulating products or have an interest in water treatment please join this introductory lecture on how sizing and zeta potential provide key results in a broad range of application problems.