Self-Healing Thiolated Pillar[5]arene Films Containing Moxifloxacin Suppress the Development of Bacterial Biofilms

  • Dmitriy Shurpik
  • , Yulia Aleksandrova
  • , Olga Mostovaya
  • , Viktoriya Nazmutdinova
  • , Regina Tazieva
  • , Fadis Murzakhanov
  • , Marat Gafurov
  • , Pavel Zelenikhin
  • , Evgenia Subakaeva
  • , Evgenia Sokolova
  • , Alexander Gerasimov
  • , Vadim Gorodov
  • , Daut Islamov
  • , Peter Cragg
  • , Ivan Stoikov

Research output: Contribution to journalArticlepeer-review

Abstract

Polymer self-healing films containing fragments of pillar[5]arene were obtained for the first time using thiol/disulfide redox cross-linking. These films were characterized by thermogravimetric analysis and differential scanning calorimetry, FTIR spectroscopy, and electron microscopy. The films demonstrated the ability to self-heal through the action of atmospheric oxygen. Using UV–vis, 2D 1H-1H NOESY, and DOSY NMR spectroscopy, the pillar[5]arene was shown to form complexes with the antimicrobial drug moxifloxacin in a 2:1 composition (logK11 = 2.14 and logK12 = 6.20). Films containing moxifloxacin effectively reduced Staphylococcus aureus and Klebsiella pneumoniae biofilms formation on adhesive surfaces.
Original languageEnglish
Article number1604
Pages (from-to)1604
Number of pages20
JournalNanomaterials
Volume12
Issue number9
DOIs
Publication statusPublished - 9 May 2022

Bibliographical note

Funding Information:
Funding: The work was supported by Russian Science Foundation (№20-73-00161). Investigation of spatial structure of compounds by NMR spectroscopy was supported by the Kazan Federal University Strategic Academic Leadership Program (‘PRIORITY-2030’).

Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • pillar[5]arene
  • self-healing
  • moxifloxacin hydrochloride
  • electron spin resonance
  • polymer films
  • polythiols
  • antibacterial activity

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