| 00:00:00 | DLS, PCS, QELS, NIBS, MADLS, ELS - Oh my! |
| 00:02:07 | Acronyms |
| 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 |
| 00:25:44 | Zetasizer Ultra |
| 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 |
| 00:29:18 | MADLS® |
| 00:29:24 | MADLS® |
| 00:30:31 | Zetasizer Ultra |
| 00:31:00 | Particle Concentration |
| 00:31:11 | Particle Concentration |
| 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? |
| 00:39:48 | Zeta Potential |
| 00:43:19 | Electrophoretic Light Scattering |
| 00:44:10 | Zeta Potential |
| 00:44:31 | Electrophoretic Light Scattering(Zeta Potential) |
| 00:45:25 | Optical Configuration |
| 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 |
| 00:51:18 | Coating Defects |
| 00:51:41 | Coating Efficiency |
| 00:52:00 | Summary; Zeta Potential |
| 00:52:50 | Acronyms |
| 00:54:19 | Added Features & Benefits of the Zetasizer Pro & Ultra |
| 00:55:12 | Thank You for Your Attention |
| 00:55:37 | Question & Answers |
| 01:03:28 | Contact information |
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.
Présentateur
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