Modular porous polymer-based microcapsules for trapping and near-infrared light-triggered killing of bacteria via gold nanorods
Due to the increasing occurrence of antibiotic-resistant bacterial strains worldwide, there is an urgent need for developing antibiotic-independent strategies to combat bacterial infections. In this study, we developed a modular approach for trapping, retaining, and killing bacteria by means of poro...
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| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
September 23, 2024
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| In: |
ACS applied nano materials
Year: 2024, Jahrgang: 7, Heft: 19, Pages: 22650-22661 |
| ISSN: | 2574-0970 |
| DOI: | 10.1021/acsanm.4c03636 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1021/acsanm.4c03636
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| Verfasserangaben: | Nina F. Conzelmann, Ariadna Benimeli Borràs, Saradaprasan Muduli, Anastassiya Schramm, Pascal M. Jeschenko, Ilia Platzman and Joachim P. Spatz |
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| 520 | |a Due to the increasing occurrence of antibiotic-resistant bacterial strains worldwide, there is an urgent need for developing antibiotic-independent strategies to combat bacterial infections. In this study, we developed a modular approach for trapping, retaining, and killing bacteria by means of porous, poly(lactic-co-glycolic acid) (PLGA)-based microcapsules with integrated gold nanorods (AuNRs). AuNRs were coated with thiol-functionalized PLGA beforehand to ensure efficient integration into the hydrophobic microcapsule shells. For the efficient generation of AuNR-functionalized microcapsules, we designed and developed a fast and reliable one-pot bulk emulsification production method. When exposing the AuNR-decorated microcapsules to near-infrared light, both motile and nonmotile bacteria were killed in a highly localized manner due to AuNR-generated heat. Importantly, fibroblast cell viability tests performed with AuNR-decorated microcapsules revealed good biocompatibility of the system. Such a modular antibacterial system can be employed in various applications, including, but not limited to, implant coatings, flushing solutions, and sewage treatment. | ||
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