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Question

When do particles aggregate to form micelles?


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Solution

Micelles:

  • A micelle or micella is a colloidal suspension made up of surfactant phospholipid molecules scattered in a liquid.
  • Micelles are aqueous solution aggregates formed by molecules with polar or charged groups and non-polar areas (amphiphilic compounds).
  • Polar or ionic heads create an outer shell in contact with water in a micelle, while non-polar tails are trapped inside.
  • As a result, a micelle's centre, which is made up of long non-polar tails, resembles an oil or gasoline drop.
  • In water, a typical micelle aggregate, with the hydrophilic "head" areas in contact with the surrounding solvent and the hydrophobic single-tail portions sequestered in the micelle centre.

Aggregation of particles:

  • Particles combine to form micelles at high concentrations. Above Tk, a phenomenon known as kraft temperature and crucial micelle concentration (CMC) it happens. If the concentration is low, a true solution is formed.

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