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Vianney Delplace1,2,3, Jaclyn Obermeyer1,2,3, Molly S Shoichet1,2,3

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Hydrogels offer advanced localized drug delivery by controlling therapeutic release. Affinity-based strategies in these polymer matrices overcome challenges for effective, sustained treatment.

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Area of Science:

  • Biomaterials Science
  • Drug Delivery Systems
  • Polymer Chemistry

Background:

  • Hydrogels are water-swollen polymer matrices increasingly investigated for therapeutic delivery.
  • Localized drug delivery minimizes systemic side effects, but requires sustained release vehicles.
  • Injectable hydrogels offer minimally invasive, in situ gelling for prolonged therapeutic benefit.

Purpose of the Study:

  • To explore the use of hydrogels for controlled localized therapeutic delivery.
  • To investigate affinity-based strategies for enhancing drug release control.
  • To address challenges of burst release and therapeutic molecule stability.

Main Methods:

  • Utilizing biocompatible polymer building blocks for hydrogel formation.
  • Incorporating ligands or nanoparticles with specific affinities for therapeutics.
  • Developing injectable hydrogel formulations for rapid in situ gelation.

Main Results:

  • Affinity-based strategies effectively overcome burst release and encapsulation challenges.
  • Controlled spatial and temporal release of small-molecule drugs and proteins is achieved.
  • Hydrogels demonstrate potential for applications ranging from contact lenses to tissue regeneration.

Conclusions:

  • Hydrogels are versatile platforms for advanced localized drug delivery.
  • Affinity-based strategies significantly improve control over therapeutic release from hydrogels.
  • Future innovations will enhance stimuli-responsive systems and technology combinations for precise drug delivery.