From biocides to biology: multispecies biofilms as a sustainable, self-regenerating, and effective antifouling strategy

TL;DR

This paper introduces a new antifouling strategy using multispecies biofilms to prevent marine fouling without harmful chemicals.

Contribution

The novelty lies in using ecological steering of biofilms as a sustainable alternative to traditional antifouling methods.

Findings

Multispecies biofilms can act as a physical barrier against macrofouler settlement.

This approach avoids biocides and inert coatings, offering an environmentally safe solution.

Abstract

Finding antifouling strategies that are effective and environmentally safe remains a central challenge for maritime operations and ecosystem protection. Amador et al.’s article in Applied and Environmental Microbiology (91:e01392-25, 2025, https://doi.org/10.1128/aem.01392-25) proposes a bioinspired, applied-microbial-ecology solution: deliberately shaping pioneer biofilm communities, so they form a physical barrier against macrofouler settlement, avoiding biocides and low-adhesion inert coatings. Though focused on the ocean, this paradigm could inform broader anti-biofilm interventions across microbiology, reframing control as ecological steering rather than chemical suppression or materials-based design.

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