Cited by 35Bacterial biofilms and quorum sensingNanoparticles: synthesis and applicationsMicro and Nano Robotics

Urchin-like Fe 3 O 4 @Bi 2 S 3 Nanospheres Enable the Destruction of Biofilm and Efficiently Antibacterial Activities

Xu, Yaqian, Chen, Benjin, Xu, Lingling, Zhang, Guoqiang, Cao, Limian, Liu, Nian, Wang, Wanni, Qian, Haisheng +1 more·2024·ACS Applied Materials & Interfaces

Abstract

Biofilm-associated infections (BAIs) have been considered a major threat to public health, which induce persistent infections and serious complications. The poor penetration of antibacterial agents in biofilm significantly limits the efficiency of combating BAIs. Magnetic urchin-like core–shell nanospheres of Fe 3 O 4 @Bi 2 S 3 were developed for physically destructing biofilm and inducing bacterial eradication via reactive oxygen species (ROS) generation and innate immunity regulation. The urchin-like magnetic nanospheres with sharp edges of Fe 3 O 4 @Bi 2 S 3 exhibited propeller-like rotation to physically destroy biofilm under a rotating magnetic field (RMF). The mild magnetic hyperthermia improved the generation of ROS and enhanced bacterial eradication. Significantly, the urchin-like nanostructure and generated ROS could stimulate macrophage polarization toward the M1 phenotype, which could eradicate the persistent bacteria with a metabolic inactivity state through phagocytosis, thereby promoting the recovery of implant infection and inhibiting recurrence. Thus, the design of magnetic-driven sharp-shaped nanostructures of Fe 3 O 4 @Bi 2 S 3 provided enormous potential in combating biofilm infections.

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Crossref · 10.1021/acsami.3c17888

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Authors
Xu, Y., Chen, B., Xu, L., Zhang, G., Cao, L., Liu, N., Wang, W., Qian, H., & Shao, M.
Affiliations
  • Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, Anhui, P. R. China
  • Anhui Medical University (CN)
  • First Affiliated Hospital of Anhui Medical University (CN)
Corresponding author
  • Wang, Wanni
  • Qian, Haisheng
  • Shao, Min
Venue
ACS Applied Materials & Interfaces
Published
2024-01-11
Volume
16
Issue
3
Pages
3215-3231
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W4390740934
Cited by
35
References
68
Citations by year
2026: 6 · 2025: 23 · 2024: 6
FWCI
4.75
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Applied Materials & Interfaces (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Anhui Provincial Department of Education (2023AH053300)
  • Anhui University (KJ2021ZD0023)
  • National Natural Science Foundation of China (52172276, U20A20379)
  • University and Hospital Joint Discipline Construction Project (2021lcxk019)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacterial biofilms and quorum sensing
  • Physical Sciences › Materials Science › Materials Chemistry › Nanoparticles: synthesis and applications
  • Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Micro and Nano Robotics
Keywords
urchin-like nanostructures, biofilm eradication, biofilm-associated infections, antibacterial activity, reactive oxygen species generation, magnetic hyperthermia, rotating magnetic field, macrophage polarization, M1 macrophage polarization, phagocytosis, implant-associated infection, persistent bacterial infection, magnetic nanoparticles
MeSH terms
Anti-Bacterial Agents, Bacteria, Reactive Oxygen Species, Biofilms, Nanostructures, Nanospheres

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