Polymyxin B-modified conjugated oligomer nanoparticle for targeted identification and enhanced photodynamic antimicrobial therapy

Chem Commun (Camb). 2021 Oct 26;57(85):11244-11247. doi: 10.1039/d1cc04389g.

Abstract

We report a photosensitive polymyxin B-modified conjugated oligomer nanoparticle that integrates the targeted identification and synergistic photodynamic therapy in one treatment against resistant Gram-negative bacteria. The study expands the application of antibiotics and opens a new avenue for enhancing photodynamic antimicrobial therapy and fighting bacterial resistance.

MeSH terms

  • Animals
  • Anti-Bacterial Agents / chemistry*
  • Anti-Bacterial Agents / pharmacology
  • Azides / chemistry
  • Click Chemistry
  • Drug Resistance, Multiple, Bacterial
  • Drug Synergism
  • Escherichia coli / drug effects
  • Fluorescent Dyes / chemistry
  • Humans
  • Mice
  • Microbial Sensitivity Tests
  • Nanoparticles / chemistry*
  • Optical Imaging
  • Photochemotherapy
  • Polyethylene Glycols / chemistry*
  • Polymyxin B / chemistry*
  • Polymyxin B / pharmacology
  • Staphylococcus aureus / drug effects

Substances

  • Anti-Bacterial Agents
  • Azides
  • Fluorescent Dyes
  • Polyethylene Glycols
  • Polymyxin B