What does this research mean for the field?

Electrostatic anchoring of viable quorum-quenching bacteria onto diethylenetriamine-functionalized membranes creates a durable biointerface that sustains quorum sensing disruption and reduces membrane fouling by 45%. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To develop and evaluate a surface-modification approach that electrostatically anchors viable quorum-quenching bacteria directly onto filtration membranes to mitigate biofouling.

September 8, 2026Journal of Membrane ScienceOpen Access

Electrostatic immobilization of quorum-quenching bacteria on diethylenetriamine-functionalized membranes for durable antibiofouling biointerfaces

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Authors

ABAsia Bibi JKJinwoo Kim SSSyed Salman Ali Shah

Discussion

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Overview

Experimental study demonstrates electrostatic bacterial immobilization reduces membrane biofouling by 45%, indicating a scalable approach for filtration biointerfaces.

Key Points

To develop and evaluate a surface-modification approach that electrostatically anchors viable quorum-quenching bacteria directly onto filtration membranes to mitigate biofouling.
Functionalized poly(vinylidene fluoride) (PVDF) membranes with diethylenetriamine (DETA) to introduce positively charged protonated amine groups without reducing permeability.
Electrostatically immobilized the negatively charged quorum-quenching bacterium Rhodococcus sp. BH4 onto the cationic membrane interface.
Assayed C8-HSL signal degradation kinetics, evaluated Pseudomonas aeruginosa PAO1 biofilm inhibition, and tested fouling mitigation during continuous membrane bioreactor operation.
Surface DETA modification yielded 3.25% surface nitrogen and immobilized approximately 3.2 × 10^4 Rhodococcus sp. BH4 cells/mm^2.
Immobilized bacteria degraded C8-HSL at a first-order rate constant of 0.744 h^-1 and inhibited Pseudomonas aeruginosa PAO1 biofilm formation by up to 68%.
Continuous membrane bioreactor filtration demonstrated a 45% reduction in fouling rate compared to pristine and DETA-only controls alongside distinct biofilm community restructuring.

Cite This Study

Bibi et al. (2026) studied this question.

synapsesocial.com/papers/6a9fd72a58e84d0ff5b45b30 https://doi.org/10.1016/j.memsci.2026.126131

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September 8, 2026Journal of Membrane ScienceOpen Access

Electrostatic immobilization of quorum-quenching bacteria on diethylenetriamine-functionalized membranes for durable antibiofouling biointerfaces

View Full Paper

Ask AI

Bookmark

Authors

ABAsia Bibi JKJinwoo Kim SSSyed Salman Ali Shah

Discussion

Member takes

Overview

Experimental study demonstrates electrostatic bacterial immobilization reduces membrane biofouling by 45%, indicating a scalable approach for filtration biointerfaces.

Key Points

To develop and evaluate a surface-modification approach that electrostatically anchors viable quorum-quenching bacteria directly onto filtration membranes to mitigate biofouling.
Functionalized poly(vinylidene fluoride) (PVDF) membranes with diethylenetriamine (DETA) to introduce positively charged protonated amine groups without reducing permeability.
Electrostatically immobilized the negatively charged quorum-quenching bacterium Rhodococcus sp. BH4 onto the cationic membrane interface.
Assayed C8-HSL signal degradation kinetics, evaluated Pseudomonas aeruginosa PAO1 biofilm inhibition, and tested fouling mitigation during continuous membrane bioreactor operation.
Surface DETA modification yielded 3.25% surface nitrogen and immobilized approximately 3.2 × 10^4 Rhodococcus sp. BH4 cells/mm^2.
Immobilized bacteria degraded C8-HSL at a first-order rate constant of 0.744 h^-1 and inhibited Pseudomonas aeruginosa PAO1 biofilm formation by up to 68%.
Continuous membrane bioreactor filtration demonstrated a 45% reduction in fouling rate compared to pristine and DETA-only controls alongside distinct biofilm community restructuring.

Cite This Study

Bibi et al. (2026) studied this question.

synapsesocial.com/papers/6a9fd72a58e84d0ff5b45b30 https://doi.org/10.1016/j.memsci.2026.126131

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