Biofilm Dynamics in Medical Applications

Biofilms are organised microbial communities that adhere to surfaces and produce a protective extracellular matrix. In medical settings they underlie persistent infections on tissues and indwelling devices by evading immune responses and exhibiting heightened tolerance to antimicrobials. Their life cycle encompasses initial attachment, microcolony formation, maturation into complex three-dimensional structures, and eventual dispersion of cells to new sites. Spatial heterogeneity within biofilms gives rise to metabolic and gene-expression gradients that contribute to phenotypic diversity and stress resistance. Recent advances in imaging, multi-omics and microfluidic cultivation have elucidated the interplay between shear forces, nutrient availability and interspecies communication in shaping biofilm architecture and resilience. These insights are steering the design of anti-adhesive coatings, dispersal enzymes and host-directed therapies. Concurrently, the emergence of bioprinted infection models and organoid systems is bridging the gap between simplified in vitro assays and patient-relevant conditions, enabling precise evaluation of novel therapeutics and biomaterial performance. The integration of fundamental biofilm ecology with engineering approaches holds promise for controlling unwanted colonisation on medical devices while harnessing beneficial microbial consortia in regenerative medicine.

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Biofilm Dynamics in Medical Applications publication trend

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Technical terms

Biofilm: A structured community of microbial cells embedded within a self-produced polymeric matrix and adherent to surfaces.

Extracellular polymeric substance (EPS): The carbohydrate-rich matrix that encases biofilm cells, providing structural integrity and protection.

3D bioprinting: A fabrication technique that deposits living cells and biomaterials layer by layer to create three-dimensional, biologically functional constructs.

Organoid: A three-dimensional tissue culture model derived from stem cells that recapitulates key aspects of native organ architecture and function.

Antibiotic tolerance: The ability of biofilm-associated cells to survive transient exposure to antimicrobial agents without genetic resistance.

References

1. 3D bioprinting of E. coli MG1655 biofilms on human lung epithelial cells for building complex in vitro infection models. Biofabrication (2023).
2. Classical and Modern Models for Biofilm Studies: A Comprehensive Review. Antibiotics (2024).
3. Human organoid biofilm model for assessing antibiofilm activity of novel agents. npj Biofilms and Microbiomes (2021).