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Lysozyme-Based Antibacterial Nanomotors.

Melek Kiristi1, Virendra V Singh1, Berta Esteban-Fernández de Ávila1

  • 1Department of Nanoengineering, University of California-San Diego , La Jolla, California 92093, United States.

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Summary
This summary is machine-generated.

Lysozyme-modified nanomotors offer a rapid nanotechnology strategy for bacterial killing. These fuel-free, ultrasound-propelled motors enhance enzyme-bacteria interactions for effective antimicrobial activity.

Keywords:
bacteriabiocompatibilitylysozymenanomotorsultrasound

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Area of Science:

  • Nanotechnology
  • Biotechnology
  • Materials Science

Background:

  • Lysozyme exhibits potent antibacterial properties by cleaving bacterial cell walls.
  • Nanomotors offer enhanced mobility and targeted delivery for therapeutic applications.

Purpose of the Study:

  • To develop a novel nanotechnology strategy for rapid and effective bacterial killing.
  • To combine the antibacterial action of lysozyme with the propulsion of nanomotors.

Main Methods:

  • Fabrication of porous gold nanowire (p-AuNW) nanomotors.
  • Modification of nanomotors with lysozyme.
  • Ultrasound (US) propulsion of nanomotors for bacterial targeting.
  • Characterization of nanomotor performance and antibacterial efficacy.

Main Results:

  • Lysozyme-modified p-AuNW nanomotors demonstrated enhanced bacteria-killing capability.
  • Nanomotors significantly increased enzyme-bacteria interactions and prevented bacterial aggregation.
  • High antimicrobial activity was observed against both Gram-positive and Gram-negative bacteria.
  • Rapid killing of Micrococcus lysodeikticus (69-84% in 1-5 min) was achieved.

Conclusions:

  • Lysozyme-modified fuel-free nanomotors represent an effective dynamic nanofighter strategy.
  • The combination of enzyme activity and nanomotor propulsion enhances antimicrobial performance.
  • This nanotechnology approach shows promise for combating bacterial infections.