Using Ultrasound Scanning to Characterize Colloidal Particles

October 21, 2008 | Contact Author | By: Malcolm Povey, Procter Department of Food Science and Lyn S. Daintree, PhD, Institute of Particle Science & Engineering
Fill out my online form.
  • Article
  • Keywords/Abstract

Keywords: ultrasound | colloidal particles | stability | product characterization | phase separation

Abstract: Changes in the macroscopic nature of aqueous or colloidal formulations can lead to changes in the odor, appearance or feel of a product. Data presented in this article demonstrates ultrasound scanning to determine formulation shelf life and monitor product quality.

Ultrasound scanning is a highly promising new technique for product characterization and stability determination of colloidal and aqueous-based formulations. The stability of colloidal and fluid/particle dispersions is of increasing importance to the cosmetic and personal care industry where differences in raw materials can affect the batch-to-batch quality of products. Additionally, product developers in the industry need tools to predict formulation stability to reduce development time.