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GATE 2025 BM – Question 27

Biomaterials and Tissue Engineering · Biomaterial Properties · 1 mark · Multiple choice

For temperature-sensitive polymers, what does LCST stand for?

  1. Large Critical Solution Temperature
  2. Local Critical Solute Temperature
  3. Large Critical Solvent Temperature
  4. Lower/Lowest Critical Solution Temperature

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Correct answer: (D) Lower/Lowest Critical Solution Temperature

Explanation

LCST denotes lower critical solution temperature. Above this boundary, certain polymer solutions lose miscibility and phase-separate on heating. “Lower/Lowest Critical Solution Temperature” is the offered matching expansion, D.

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