3D Mapping and Identification of Colloids in Emulsions Using a Raman Microscope

The Renishaw inVia confocal Raman microscope is the most suitable system for the comprehensive 2D and 3D chemical analysis of colloids and emulsions.

Shutterstock | Tamara Kulikova

The Renishaw inVia confocal Raman microscope is the most suitable system for the comprehensive 2D and 3D chemical analysis of colloids and emulsions.

Emulsions are liquid-in-liquid colloids used across a range of diverse industries including food (for example: yoghurts), cosmetics (for example: skin creams), and chemicals. The study of emulsions is crucial to provide data on interactions, network connections, separation and the role of emulsifiers. These are factors that guarantee that the emulsion is stable and well-matched to its specific role.

The inVia microscope offers unbelievable chemical sensitivity and specificity, producing comprehensive confocal chemical images in 2 and 3 dimensions.

High Resolution Confocal Emulsion Analysis

  • Reveal the location of water, oils and emulsifiers
  • Investigate instabilities such as flocculation and coalescence
  • Define domain size information at sub-micrometer spatial resolution
  • Investigate emulsions in 3D to reveal droplet sizes and depth separation
  • Use various configurable dry and immersion objectives to enhance confocal performance for a variety of emulsions

Investigate Emulsified Products

  • Applicable to dairy products such as yogurts
  • Understand and enhance the quality of products
  • Reveal the distribution of components such as carotenoids, proteins, glucose and lipids
  • Investigate protein-lipid networks and lipid packing order
  • Guide the development of formulations and help enhance manufacturing processes

Moisturizing hand cream emulsion showing distribution, domain size (ranging from 0.5 µm to 4.0 µm) and emulsi?er;

Figure 1. Moisturizing hand cream emulsion showing distribution, domain size (ranging from 0.5 µm to 4.0 µm) and emulsifier;

  • Poly(dimethylsiloxane) – silicone oil serving as an anti-foaming agent and skin protectant by creating a hydrating barrier (red)
  • Glyceryl stearate – emulsifier (white) coating skin conditioner
  • Alkyl benzoate – skin conditioner (green)
  • Aqueous dispersion medium (black)

Moisturizing body cream emulsion

Moisturizing body cream emulsion revealing 3D distribution and particle size of dispersed oil phase.

Lipid packing order in yoghurt emulsion

Lipid packing order in yoghurt emulsion (from high to low) red, green and blue.

Renishaw inVia: Ideal for Studying Emulsions

  • Research-grade confocal Raman microscope
  • Configurable for various microscope objectives, including high NA and refractive index matching options
  • Sub-micrometer resolution using StreamHR™ confocal mapping
  • Fast, easy and targeted chemical image generation
  • 2D image and 3D volume options

The Renishaw inVia confocal Raman microscope.

The Renishaw inVia confocal Raman microscope.

Renishaw plc

This information has been sourced, reviewed and adapted from materials provided by Renishaw plc.

For more information on this source, please visit Renishaw plc.

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