Multi-component liquid-infused systems: a new approach to functional coatings

Applebee, Zachary; Howell, Caitlin

doi:10.1039/d4im00003j

Ind. Chem. Mater.

2024

DOI: 10.1039/d4im00003j

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Multi-component liquid-infused systems: a new approach to functional coatings

Zachary Applebee,

Caitlin Howell

Abstract: Antifouling liquid-infused surfaces have generated interest in multiple fields due to their diverse applications in industry and medicine. In nearly all reports to date, the liquid component consists of only...

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Effect of free liquid layer quantity on bacteria and protein adhesion to liquid infused polymers

Fong,

Andersen,

Kunesh

et al. 2024

Biointerphases

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Liquid-infused polymers are recognized for their ability to repel foulants, making them promising for biomedical applications including catheter-associated urinary tract infections (CAUTIs). However, the impact of the quantity of free liquid layer covering the surface on protein and bacterial adhesion is not well understood. Here, we explore how the amount of free silicone liquid layer in infused silicone catheter materials influences the adhesion of bacteria and proteins relevant to CAUTIs. To alter the quantity of the free liquid layer, we either physically removed excess liquid from fully infused catheter materials or partially infused them. We then evaluated the impact on bacterial and host protein adhesion. Physical removal of the free liquid layer from the fully infused samples reduced the height of the liquid layer from 60 μm to below detection limits and silicone liquid loss into the environment by approximately 64% compared to controls, without significantly increasing the deposition of protein fibrinogen or the adhesion of the common uropathogen Enterococcus faecalis. Partially infused samples showed even greater reductions in liquid loss: samples infused to 70%–80% of their maximum capacity exhibited about an 85% decrease in liquid loss compared to fully infused controls. Notably, samples with more than 70% infusion did not show significant increases in fibrinogen or E. faecalis adhesion. These findings suggest that adjusting the levels of the free liquid layer in infused polymers can influence protein and bacterial adhesion on their surfaces. Moreover, removing the free liquid layer can effectively reduce liquid loss from these polymers while maintaining their functionality.

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Effect of free liquid layer quantity on bacteria and protein adhesion to liquid infused polymers

Fong,

Andersen,

Kunesh

et al. 2024

Biointerphases

View full text Add to dashboard Cite

show abstract

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Multi-component liquid-infused systems: a new approach to functional coatings

Abstract: Antifouling liquid-infused surfaces have generated interest in multiple fields due to their diverse applications in industry and medicine. In nearly all reports to date, the liquid component consists of only...

Cited by 1 publication

References 119 publications

Effect of free liquid layer quantity on bacteria and protein adhesion to liquid infused polymers

Effect of free liquid layer quantity on bacteria and protein adhesion to liquid infused polymers

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