Zeta Potential Solutions in Product Formulations

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00:00:00 Title
00:02:06 Objectives
00:02:42 Formulated Products
00:05:27 PART TWO
00:05:29 What is Zeta Potential?
00:06:13 Electrostatics
00:08:27 ZETA POTENTIAL
00:11:51 MAINTAINING COLLOIDAL STABILITY
00:14:02 Stabilization
00:15:39 ELECTROSTATICS: Origins of Surface Charge in Aqueous Media
00:16:01 Ionization
00:19:20 Polymer Adsorption
00:22:24 Predicting Dispersion Stability
00:23:00 Zeta Potential and pH
00:24:48 Zeta Potential and Conductivity
00:25:10 Non Specific Ion Adsorption
00:25:36 Specific Ion Adsorption
00:26:10 PART THREE
00:26:14 Zeta Potential - Measurements
00:27:59 Laser Doppler Electrophoresis
00:28:47 Optical Configuration
00:30:05 Electrophoretic Light Scattering (Zeta Potential)
00:31:37 Example Measurement Cells Capillary & Dip Cells
00:32:09 PART FOUR
00:32:16 Photochemistry & Photobiology of the Skin
00:33:05 Sunscreen Agents: Different Types
00:34:08 Physical (Particulate) Sunscreen Materials
00:35:28 Microfine Metal Oxide UVR Attenuation Spectra
00:35:58 Uncoated Titanium Dioxide & Zinc Oxide
00:36:47 Surface Treated Titanium Dioxide & Zinc Oxide
00:37:04 Zeta potential vs PH
00:37:59 Particle Size Growth ZnO & TiO2 (pH 7.0)
00:38:22 Coated Anionic Liposomes in Gene Delivery (Steric Stabilisation)
00:38:51 PEG-Coated Liposomes (Dispersed in Physiological Saline)
00:39:34 Cationic Liposomes in Gene Delivery
00:39:57 Cationic Liposomes in Gene Therapy
00:41:24 Conclusion
00:42:50 Website – www.malvern.com
00:43:42 Contact information
00:43:49 Contact Information
00:56:43 Zetasizer Nano instrument
00:59:53 Contact Information
Zeta potential is an important parameter that relates surface chemistry and product performance and is both a function of the particle surface and the dispersant. This introduction reviews zeta potential theory, measurement and applications