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Quercetin adsorption with imprinted polymeric materials.

Ceren Türkcan1, Burcu Somtürk2, Nalan Özdemir2

  • 1a Vocational School, Medical Services and Techniques, Beykent University , Istanbul , Turkey.

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Molecularly imprinted polymer membranes were created to effectively capture quercetin. These reusable membranes show high adsorption capacity and efficient desorption, demonstrating their potential for quercetin recovery.

Keywords:
AdsorptionMembraneMolecularly Imprinted PolymerQuercetin

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Analytical Chemistry

Background:

  • Quercetin, a prevalent flavonoid, possesses significant health benefits but requires efficient extraction methods.
  • Molecular imprinting offers a selective approach for designing materials with specific recognition capabilities.

Purpose of the Study:

  • To synthesize and characterize molecularly imprinted polymer membranes for selective quercetin adsorption.
  • To optimize adsorption conditions and evaluate the performance and reusability of the developed membranes.

Main Methods:

  • Poly(2-hydroxyethyl methacrylate-co-N-methacryloly-l-histidinemethylester) [p(HEMA-MAH)] membranes were synthesized using UV polymerization.
  • Membrane characterization involved SEM, FTIR, and swelling tests.
  • Batch adsorption experiments were conducted to optimize pH, temperature, and concentration, followed by desorption studies.

Main Results:

  • The synthesized p(HEMA-MAH) membranes exhibited excellent quercetin recognition and adsorption capabilities.
  • Optimal adsorption was achieved at pH 4.0 and 45°C, with a maximum adsorption capacity of 299.6 mg/g.
  • High desorption yield (98.3%) was obtained using isopropyl alcohol, and membranes retained over 90% capacity after 7 cycles.

Conclusions:

  • The developed molecularly imprinted polymer membranes are highly effective and reusable for quercetin adsorption and recovery.
  • This study presents a promising material for selective quercetin separation and purification applications.