記録された日時: September 19 2019

Duration: 01 hours 04 minutes 34 seconds

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.

Table of contents
1. DLS, PCS, QELS, NIBS, MADLS, ELS - Oh my!
02:07
2. Acronyms
02:22
3. The Zetasizer ZS, Pro and Ultra
02:19
4. Brownian Motion and Particle Size
00:00
5. Dynamic Light Scattering(Particle Size)
00:38
6. Introduction to Dynamic Light Scattering (DLS)
02:14
7. The Correlation Function
03:00
8. Large Z-Average Values
03:46
9. Zetasizer Nano, Pro & UltraBackscatter Optics
01:25
10. NIBS: Non Invasive Back ScatterVariable Measurement Positioning
02:18
11. Application Example: Sucrose = sub-nm
00:43
12. Zetasizer Pro & Ultra
00:35
13. DLS data quality
00:33
14. Limitations – Experimental Noise
01:59
15. Adaptive Correlation: A New Approach to Data Acquisition
01:45
16. Zetasizer Ultra
01:23
17. Pushing the DLS resolution: Multi Angle DLS (MADLS)
00:42
18. Pushing the DLS resolution: Multi Angle DLS (MADLS)
00:38
19. Example of increased resolution for MADLS
00:51
20. MADLS®
00:06
21. MADLS®
01:07
22. Zetasizer Ultra
00:29
23. Particle Concentration
00:11
24. Particle Concentration
01:06
25. What do I need for a concentration measurement?
00:41
26. Sample requirements for reliable concentration measurements
02:15
27. Summary; benefits of DLS
02:30
28. ELS – Electrophoretic Light Scattering
00:53
29. What is Zeta Potential?
01:12
30. Zeta Potential
03:31
31. Electrophoretic Light Scattering
00:51
32. Zeta Potential
00:21
33. Electrophoretic Light Scattering(Zeta Potential)
00:54
34. Optical Configuration
00:36
35. Example Measurement Cells Capillary & Dip Cells
00:52
36. Diffusion Barrier Technique*
01:44
37. Formulated Products - Applications
01:37
38. Multicomponent Products & Film Formation
00:27
39. Surface Activity of Surfactant
00:37
40. Coating Defects
00:23
41. Coating Efficiency
00:19
42. Summary; Zeta Potential
00:50
43. Acronyms
01:29
44. Added Features & Benefits of the Zetasizer Pro & Ultra
00:53
45. Thank You for Your Attention
00:25
46. Question & Answers
07:51
47. Contact information
01:06