Antifouling Surface‐Attached Hydrogel Nanocoatings Redefined: Green Solvent‐Based, Degradable, and High‐Performance Protection Against Foulants

Abstract Antifouling coatings are vital to enhance the performance of medical devices, aiming to mitigate bodily reactions by shielding their surface. Despite significant advancements in antifouling coatings, like those based on zwitterionic monomers and hydroxyl‐functionalized (meth)acrylamides, li...

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Main Authors: Jenny Englert, Marc Palà, Jonas Quandt, Hannah Sieben, Oliver Grottke, Bernd Marx, Gerard Lligadas, Cesar Rodriguez‐Emmenegger
Format: Article
Language:English
Published: Wiley-VCH 2025-06-01
Series:Advanced Materials Interfaces
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Online Access:https://doi.org/10.1002/admi.202500122
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author Jenny Englert
Marc Palà
Jonas Quandt
Hannah Sieben
Oliver Grottke
Bernd Marx
Gerard Lligadas
Cesar Rodriguez‐Emmenegger
author_facet Jenny Englert
Marc Palà
Jonas Quandt
Hannah Sieben
Oliver Grottke
Bernd Marx
Gerard Lligadas
Cesar Rodriguez‐Emmenegger
author_sort Jenny Englert
collection DOAJ
description Abstract Antifouling coatings are vital to enhance the performance of medical devices, aiming to mitigate bodily reactions by shielding their surface. Despite significant advancements in antifouling coatings, like those based on zwitterionic monomers and hydroxyl‐functionalized (meth)acrylamides, limitations like decreased antifouling properties after functionalization and complement system activation hinder their application in blood. Here, a novel class of ultrathin surface‐attached hydrogels is presented, consisting of hydrophilic non‐charged green solvent‐based monomers and preventing protein adsorption while offering on‐demand degradability. Unlike the best antifouling brushes, the coatings are easily applicable, unaffected by charges, and free of complement system‐activating groups. The hydrogels are formed using copolymers of N,N‐dimethyl lactamide acrylate (DMLA) and benzophenone acrylate (BPA). Moreover, 5,6‐benzo‐2‐methylene‐1,3‐dioxepane (BMDO) is incorporated to introduce hydrolyzable ester. The coating of state‐of‐the‐art devices is demonstrated with X‐ray photoelectron spectroscopy (XPS), analyze surface energy components, and confirm their antifouling properties with surface plasmon resonance (SPR). The coatings are non‐cytotoxic toward MRC‐5 fibroblasts, exhibit repellency against methicillin‐resistant Staphylococcus aureus (MRSA), and effectively prevent thrombus formation on devices in blood. This work establishes a versatile platform for next‐generation coatings in medical and industrial applications, matching the antifouling efficiency of the most advanced solutions and offering regeneration of substrates by erasing the coating.
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spelling doaj-art-ca5e2126f60c47bc8c28882c6af25d4d2025-08-20T02:38:18ZengWiley-VCHAdvanced Materials Interfaces2196-73502025-06-011212n/an/a10.1002/admi.202500122Antifouling Surface‐Attached Hydrogel Nanocoatings Redefined: Green Solvent‐Based, Degradable, and High‐Performance Protection Against FoulantsJenny Englert0Marc Palà1Jonas Quandt2Hannah Sieben3Oliver Grottke4Bernd Marx5Gerard Lligadas6Cesar Rodriguez‐Emmenegger7DWI – Leibniz Institute for Interactive Materials Forckenbeckstraße 50 52074 Aachen GermanyUniversitat Rovira i Virgili Departament de Química Analítica i Química Orgànica Laboratory of Sustainable Polymers Tarragona 43007 SpainDWI – Leibniz Institute for Interactive Materials Forckenbeckstraße 50 52074 Aachen GermanyDepartment of Anesthesiology RWTH Aachen University Hospital 52074 Aachen GermanyDepartment of Anesthesiology RWTH Aachen University Hospital 52074 Aachen GermanyVygon GmbH & Co. KG – Medizintechnik Prager Ring 100 52070 Aachen GermanyUniversitat Rovira i Virgili Departament de Química Analítica i Química Orgànica Laboratory of Sustainable Polymers Tarragona 43007 SpainDWI – Leibniz Institute for Interactive Materials Forckenbeckstraße 50 52074 Aachen GermanyAbstract Antifouling coatings are vital to enhance the performance of medical devices, aiming to mitigate bodily reactions by shielding their surface. Despite significant advancements in antifouling coatings, like those based on zwitterionic monomers and hydroxyl‐functionalized (meth)acrylamides, limitations like decreased antifouling properties after functionalization and complement system activation hinder their application in blood. Here, a novel class of ultrathin surface‐attached hydrogels is presented, consisting of hydrophilic non‐charged green solvent‐based monomers and preventing protein adsorption while offering on‐demand degradability. Unlike the best antifouling brushes, the coatings are easily applicable, unaffected by charges, and free of complement system‐activating groups. The hydrogels are formed using copolymers of N,N‐dimethyl lactamide acrylate (DMLA) and benzophenone acrylate (BPA). Moreover, 5,6‐benzo‐2‐methylene‐1,3‐dioxepane (BMDO) is incorporated to introduce hydrolyzable ester. The coating of state‐of‐the‐art devices is demonstrated with X‐ray photoelectron spectroscopy (XPS), analyze surface energy components, and confirm their antifouling properties with surface plasmon resonance (SPR). The coatings are non‐cytotoxic toward MRC‐5 fibroblasts, exhibit repellency against methicillin‐resistant Staphylococcus aureus (MRSA), and effectively prevent thrombus formation on devices in blood. This work establishes a versatile platform for next‐generation coatings in medical and industrial applications, matching the antifouling efficiency of the most advanced solutions and offering regeneration of substrates by erasing the coating.https://doi.org/10.1002/admi.202500122antifoulingbiocompatibilitycoatingdegradabilitygreen solventhydrogel
spellingShingle Jenny Englert
Marc Palà
Jonas Quandt
Hannah Sieben
Oliver Grottke
Bernd Marx
Gerard Lligadas
Cesar Rodriguez‐Emmenegger
Antifouling Surface‐Attached Hydrogel Nanocoatings Redefined: Green Solvent‐Based, Degradable, and High‐Performance Protection Against Foulants
Advanced Materials Interfaces
antifouling
biocompatibility
coating
degradability
green solvent
hydrogel
title Antifouling Surface‐Attached Hydrogel Nanocoatings Redefined: Green Solvent‐Based, Degradable, and High‐Performance Protection Against Foulants
title_full Antifouling Surface‐Attached Hydrogel Nanocoatings Redefined: Green Solvent‐Based, Degradable, and High‐Performance Protection Against Foulants
title_fullStr Antifouling Surface‐Attached Hydrogel Nanocoatings Redefined: Green Solvent‐Based, Degradable, and High‐Performance Protection Against Foulants
title_full_unstemmed Antifouling Surface‐Attached Hydrogel Nanocoatings Redefined: Green Solvent‐Based, Degradable, and High‐Performance Protection Against Foulants
title_short Antifouling Surface‐Attached Hydrogel Nanocoatings Redefined: Green Solvent‐Based, Degradable, and High‐Performance Protection Against Foulants
title_sort antifouling surface attached hydrogel nanocoatings redefined green solvent based degradable and high performance protection against foulants
topic antifouling
biocompatibility
coating
degradability
green solvent
hydrogel
url https://doi.org/10.1002/admi.202500122
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