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Antiviral Polymers Based on N-Halamine Polyurea.

Noam Y Steinman1, Tan Hu2,3,4, Aviv Dombrovsky5

  • 1The Alex Grass Center for Drug Design and Synthesis and Center for Cannabis Research and the Institute of Drug Research, School of Pharmacy-Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel.

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New antiviral polymers were created by modifying polyurea and polyguanidine with N-halamine technology. These N-halamine polymers effectively release antiviral agents, showing broad-spectrum efficacy against viruses.

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Area of Science:

  • Polymer Chemistry
  • Antimicrobial Agents
  • Materials Science

Background:

  • N-halamines are a well-established class of antimicrobial agents.
  • Polyurea and polyguanidine are common polymers with diverse applications.
  • There is a need for novel antiviral materials for various applications.

Purpose of the Study:

  • To modulate polyurea and polyguanidine polymers using N-halamine technology.
  • To create novel antiviral agents with controlled release capabilities.
  • To evaluate the antiviral efficacy of the modified polymers.

Main Methods:

  • Conversion of N-H bonds in polyurea and polyguanidine to N-Cl or N-Br bonds.
  • Monitoring the controlled release of oxidizing agents (Cl+ or Br+) over 4 weeks.
  • Evaluating antiviral activity against T4 bacteriophage and tomato brown rugose fruit virus.

Main Results:

  • Successful incorporation of N-halamine technology into polyurea and polyguanidine.
  • Demonstrated controlled release of antiviral agents from the modified polymers.
  • Significant antiviral activity observed against both T4 bacteriophage and tomato brown rugose fruit virus.

Conclusions:

  • N-halamine technology effectively imparts antiviral functionality to common polymers.
  • Modified polymers offer a versatile platform for developing new antiviral materials.
  • Potential applications span various fields requiring effective viral inactivation.