4.8 Review

Recent Nanotechnologies to Overcome the Bacterial Biofilm Matrix Barriers

Journal

SMALL
Volume 19, Issue 6, Pages -

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202206220

Keywords

biofilm barriers; biofilm infections; biofilm penetrations; drug delivery; nanomaterials

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Bacterial biofilm-related infectious diseases have a severe impact on human health. The low permeability and enrichment of therapeutic agents within the biofilm pose a challenge for treatment. This article summarizes the current progress in nanotechnology methods to improve the penetrability of therapeutic agents and discusses the challenges and future implementations of engineered delivery systems to manage biofilm infections.
Bacterial biofilm-related infectious diseases severely influence human health. Under typical situations, pathogens can colonize inert or biological surfaces and form biofilms. Biofilms are functional aggregates that coat bacteria with extracellular polymeric substances (EPS). The main reason for the failure of biofilm infection treatment is the low permeability and enrichment of therapeutic agents within the biofilm, which results from the particular features of biofilm matrix barriers such as negatively charged biofilm components and highly viscous compact EPS structures. Hence, developing novel therapeutic strategies with enhanced biofilm penetrability is crucial. Herein, the current progress of nanotechnology methods to improve therapeutic agents' penetrability against biofilm matrix, such as regulating material morphology and surface properties, utilizing the physical penetration of nano/micromotors or microneedle patches, and equipping nanoparticles with EPS degradation enzymes or signal molecules, is first summarized. Finally, the challenges, perspectives, and future implementations of engineered delivery systems to manage biofilm infections are presented in detail.

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