Polymeric Nanoparticles Active against Dual-Species Bacterial Biofilms.

Polymeric Nanoparticles Active against Dual-Species Bacterial Biofilms.
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DOI:
10.3390/molecules26164958
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发表时间:
2021-08-16
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
通讯作者:
Rotello VM
Rotello VM
中科院分区:
其他
文献类型:
--
作者:
Makabenta JMV;Park J;Li CH;Chattopadhyay AN;Nabawy A;Landis RF;Gupta A;Schmidt-Malan S;Patel R;Rotello VM

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Biofilm infections are a global public health threat, necessitating new treatment strategies. Biofilm formation also contributes to the development and spread of multidrug-resistant (MDR) bacterial strains. Biofilm-associated chronic infections typically involve colonization by more than one bacterial species. The co-existence of multiple species of bacteria in biofilms exacerbates therapeutic challenges and can render traditional antibiotics ineffective. Polymeric nanoparticles offer alternative antimicrobial approaches to antibiotics, owing to their tunable physico-chemical properties. Here, we report the efficacy of poly(oxanorborneneimide) (PONI)-based antimicrobial polymeric nanoparticles (PNPs) against multi-species bacterial biofilms. PNPs showed good dual-species biofilm penetration profiles as confirmed by confocal laser scanning microscopy. Broad-spectrum antimicrobial activity was observed, with reduction in both bacterial viability and overall biofilm mass. Further, PNPs displayed minimal fibroblast toxicity and high antimicrobial activity in an in vitro co-culture model comprising fibroblast cells and dual-species biofilms of Escherichia coli and Pseudomonas aeruginosa. This study highlights a potential clinical application of the presented polymeric platform.
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