Antifouling Mussel-Inspired Hydrogel with Furanone-Loaded ZIF-8 for Quorum Sensing-Mediated Marine Antifouling.

IF 5 3区化学 Q1 POLYMER SCIENCE

Gels Pub Date : 2025-06-18 DOI:10.3390/gels11060466

Yanbin Xiong, Junnan Cui, Xiaodan Liu, Haobo Shu, Pan Cao

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引用次数: 0

Abstract

Marine biofouling, the process of marine microorganisms, algae, and invertebrates attaching to and forming biofilms on ship hulls, underwater infrastructure, and marine equipment in ocean environments, severely impacts shipping and underwater operations by increasing fuel consumption, maintenance costs, and corrosion risks, and by threatening marine ecosystem stability via invasive species transport. This study reports the development of a hydrogel-metal-organic framework (MOF)-quorum sensing inhibitor (QSI) antifouling coating on 304 stainless steel (SS) substrates. Inspired by mussel adhesion, a hydrophilic bionic hydrogel was first constructed via metal ion coordination. The traditional metal ion source was replaced with a zeolitic imidazolate framework-8 (ZIF-8) loaded with 2-(5H)-furanone (HF, a QSI) without altering coating formation. Physicochemical characterization using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), the Brunauer-Emmett-Teller (BET) method, and the diffraction of x-rays (XRD) confirmed successful HF loading into ZIF-8 with intact crystal structures. Antifouling tests showed HF@ZIF-8 enhanced antibacterial inhibition against Staphylococcus aureus (97.28%) and Escherichia coli (>97%) and suppressed Chromobacterium violaceum CV026 pigment synthesis at 0.25 mg/mL (sub-growth concentration). The reconstructed PG/PVP/PEI/HF@ZIF-8 coating achieved 72.47% corrosion inhibition via synergistic anodic protection and physical shielding. This work provides a novel green approach for surface antifouling and drag reduction, highlighting MOF-loaded QSIs as promising additives to enhance the antifouling performance of hydrogel coatings, anti-corrosion performance, and QSI performance for sustainable marine engineering applications.

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具有呋喃酮负载ZIF-8的贻贝启发水凝胶用于群体感应介导的海洋防污。

海洋生物污染是指海洋环境中海洋微生物、藻类和无脊椎动物附着在船体、水下基础设施和海洋设备上并形成生物膜的过程，它会增加燃料消耗、维护成本和腐蚀风险，并通过入侵物种的运输威胁海洋生态系统的稳定，从而严重影响航运和水下作业。本研究在304不锈钢（SS）基材上制备了一种水凝胶-金属-有机骨架(MOF)-群体感应抑制剂（QSI）防污涂层。受贻贝粘附的启发，首先通过金属离子配位构建了一种亲水仿生水凝胶。将传统的金属离子源替换为负载2-(5H)-呋喃酮（HF，一种QSI）的沸石咪唑酸骨架-8 (ZIF-8)，而不改变涂层的形成。采用傅里叶变换红外光谱（FTIR）、x射线光电子能谱（XPS）、热重分析（TGA）、扫描电子显微镜（SEM）、高分辨率透射电子显微镜（HRTEM）、Brunauer-Emmett-Teller （BET）方法和x射线衍射（XRD）对ZIF-8进行了物理化学表征，证实了HF成功加载到ZIF-8中，晶体结构完整。在0.25 mg/mL（亚生长浓度）下，HF@ZIF-8对金黄色葡萄球菌（97.28%）和大肠杆菌（>97%）的抑菌作用增强，对紫色色杆菌CV026色素合成有抑制作用。重建的PG/PVP/PEI/HF@ZIF-8涂层通过协同阳极保护和物理屏蔽达到72.47%的缓蚀效果。这项工作为表面防污和减阻提供了一种新的绿色方法，突出了mof负载的QSI是一种有前途的添加剂，可以提高水凝胶涂层的防污性能、抗腐蚀性能和QSI性能，用于可持续的海洋工程应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Gels POLYMER SCIENCE-

CiteScore

4.70

自引率

19.60%

发文量

707

审稿时长

11 weeks

期刊介绍： The journal Gels (ISSN 2310-2861) is an international, open access journal on physical (supramolecular) and chemical gel-based materials. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the maximum length of the papers, and full experimental details must be provided so that the results can be reproduced. Short communications, full research papers and review papers are accepted formats for the preparation of the manuscripts. Gels aims to serve as a reference journal with a focus on gel materials for researchers working in both academia and industry. Therefore, papers demonstrating practical applications of these materials are particularly welcome. Occasionally, invited contributions (i.e., original research and review articles) on emerging issues and high-tech applications of gels are published as special issues.