Surface Modification of Face Masks with Modified PEI Spray to Fight Airborne Diseases

Tech ID: 20A068

­Advantages :

  • An antipathogenic sprayable solution transforms various surfaces into potent barriers against airborne pathogens.
  • The antimicrobial spray, with cationic quaternary salt polymers like modified polyethyleneimine (PEI) entraps pathogens within positively and negatively charged polymers, enhancing defense.
  • Provides a cost-effective alternative to specialized masks like N95 respirators and promotes mask reusability, thereby reducing environmental impact.

Summary:

The global demand for effective face masks surged amid the COVID-19 pandemic, revealing critical shortcomings in existing options. Traditional masks, such as cloth and surgical masks, while prevalent and affordable, lack the capability to neutralize pathogens effectively. On the other hand, specialized masks like N95 respirators offer superior filtration but suffer from limited availability, high costs, and discomfort during prolonged use. This innovation bridges the gap by introducing revolutionary surface modification technology, transforming conventional masks into potent barriers against airborne pathogens. By leveraging cationic quaternary salt containing polymers like polyethyleneimine (PEI) and its modified forms for biocompatibility, the spray empowers any mask, or personal protective equipment (PPE) equipment, to effectively neutralize viruses and bacteria. This breakthrough not only addresses the urgent need for reliable protection but also promotes mask reusability, reducing environmental impact.

Figure (a) Spraying of mask cloth with antipathogenic polymer solutions, (b) unmodified silica particle spraying (size= 100 nm) onto antipathogenic polymer solution treated mask, and (c) spraying of BSA-silica particles onto antipathogenic polymer solution treated mask.

Desired Partnerships:

  • License
  • Sponsored Research
  • Co-Development

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