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Related Concept Videos

Thermosensation01:43

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Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
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Related Experiment Video

Updated: Sep 19, 2025

Controlled Odor Mimic Permeation Systems for Olfactory Training and Field Testing
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Temperature-responsive microcapsules and their aroma applications and challenges.

Qinfei Ke1, Hong Tang1, Yunchong Zhang1

  • 1Collaborative Innovation Center of Fragrance Flavour and Cosmetics, School of Perfume and Aroma Technology (Shanghai Research Institute of Fragrance & Flavour Industry), Shanghai Institute of Technology, Shanghai 201418, China.

Journal of Colloid and Interface Science
|June 17, 2025
PubMed
Summary
This summary is machine-generated.

Temperature-responsive microcapsules offer a solution for stable and sustained aroma release in products. This review explores their wall materials, preparation, and release mechanisms, highlighting future industrialization challenges and prospects.

Keywords:
Colloidal materialsPreparationProspectsRelease mechanismTemperature-responsive aroma microcapsules

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Food Science

Background:

  • Aroma compounds often have low boiling points and poor water solubility, hindering stable release.
  • Microencapsulation stabilizes volatile compounds, but controlled release remains a challenge.
  • Temperature-responsive microcapsules offer tunable aroma release triggered by temperature changes.

Purpose of the Study:

  • To review the classification of wall materials for temperature-responsive aroma microcapsules.
  • To describe preparation methods and discuss release mechanisms of these microcapsules.
  • To identify challenges and prospects for the industrial application of temperature-responsive aroma microcapsules.

Main Methods:

  • Classification of temperature-responsive wall materials.
  • Description of microencapsulation preparation techniques.
  • Discussion of release mechanisms based on material properties (phase transition, cloud point, glass transition, etc.).

Main Results:

  • Summarized wall material classifications for temperature-responsive microcapsules.
  • Detailed preparation methods and release mechanisms, including phase transition temperature, cloud point, polymer molecular chain conformation transition, glass transition temperature, and Avrami's equation.
  • Identified key factors influencing aroma release from microcapsules.

Conclusions:

  • Temperature-responsive microcapsules provide a method for controlled aroma release, improving product stability and longevity.
  • Further research and development are needed to overcome industrialization challenges for widespread application.
  • These microcapsules hold significant potential for smart aroma delivery systems.