|00:00:00||DLS, PCS, QELS, NIBS, MADLS, ELS - Oh my!|
|00:04:29||The Zetasizer ZS, Pro and Ultra|
|00:06:48||Brownian Motion and Particle Size|
|00:06:48||Dynamic Light Scattering(Particle Size)|
|00:07:26||Introduction to Dynamic Light Scattering (DLS)|
|00:09:40||The Correlation Function|
|00:12:40||Large Z-Average Values|
|00:16:26||Zetasizer Nano, Pro & UltraBackscatter Optics|
|00:17:51||NIBS: Non Invasive Back ScatterVariable Measurement Positioning|
|00:20:09||Application Example: Sucrose = sub-nm|
|00:20:52||Zetasizer Pro & Ultra|
|00:21:27||DLS data quality|
|00:22:00||Limitations – Experimental Noise|
|00:23:59||Adaptive Correlation: A New Approach to Data Acquisition|
|00:27:07||Pushing the DLS resolution: Multi Angle DLS (MADLS)|
|00:27:49||Pushing the DLS resolution: Multi Angle DLS (MADLS)|
|00:28:27||Example of increased resolution for MADLS|
|00:32:17||What do I need for a concentration measurement?|
|00:32:58||Sample requirements for reliable concentration measurements|
|00:35:13||Summary; benefits of DLS|
|00:37:43||ELS – Electrophoretic Light Scattering|
|00:38:36||What is Zeta Potential?|
|00:43:19||Electrophoretic Light Scattering|
|00:44:31||Electrophoretic Light Scattering(Zeta Potential)|
|00:46:01||Example Measurement Cells Capillary & Dip Cells|
|00:46:53||Diffusion Barrier Technique*|
|00:48:37||Formulated Products - Applications|
|00:50:14||Multicomponent Products & Film Formation|
|00:50:41||Surface Activity of Surfactant|
|00:52:00||Summary; Zeta Potential|
|00:54:19||Added Features & Benefits of the Zetasizer Pro & Ultra|
|00:55:12||Thank You for Your Attention|
|00:55:37||Question & Answers|
The basics of Dynamic Light Scattering and electrophoretic light scattering will be discussed. I will review the Dynamic Light Scattering acronyms, i.e what is meant by NIBS and MADLS. I will introduce the utility of light scattering measurements, provide useful tips for analyzing DLS measurement results and provide interesting example data.
I will also review Electrophoretic Light Scattering and zeta potential. Zeta potential is a function of both the particle surface and the dispersant and is therefore an important predictor of the inter-facial behavior of a multi-component formulated product.
If you have an interest in the sizing of nano-materials, improving size results, identifying good and bad data. Join me in this introductory lecture on how sizing and zeta potential provide key results in a broad range of application problems.
Ana Morfesis Ph.D.
Pour en savoir plus
- Who should attend?
- Anyone interested to learn about the basics of Dynamic light scattering and useful tips for analyzing DLS measurement results
- Why should you attend?
- To educate yourself on new approaches and refresh yourself on the basics of dynamic light scattering from an expert on the subject