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首页> 外文期刊>Advanced Functional Materials >High-Resolution Patterned Functionalization of Slippery 'Liquid-Like' Brush Surfaces via Microdroplet-Confined Growth of Multifunctional Polydopamine Arrays
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High-Resolution Patterned Functionalization of Slippery 'Liquid-Like' Brush Surfaces via Microdroplet-Confined Growth of Multifunctional Polydopamine Arrays

机译：通过微滴水型多功能多德米胺阵列的微滴水型刷表面的高分辨率图案化函数化

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摘要

Slippery omniphobic covalently attached liquids enable smooth, transparent, pressure- and temperature-resistant, and liquid-repellent coatings. Patterned functionalization of such surfaces would drive technology developments and fundamental understandings in broad applications from biosensors to sustainable smart surfaces. Herein an additive microcontact printing approach in combination with the microdroplet-confined synthesis is developed to functionalize slippery surfaces tethered with "liquid-like" linear poly(dimethylsiloxane) by multifunctional polydopamine (PDA) arrays. Using glycerol and non-ionic surfactant Tween-20, microdroplet arrays containing dopamine monomers are printed onto the slippery surfaces and serve as microreactors for the in situ growth of PDA micropatterns. The confined growth approach enables tunable feature size, height, and morphology of the patterns, through which sub-micrometer PDA dot arrays over centimeter-square patterning area can be reliably achieved. Furthermore, the reactive and hydrophilic PDA micropatches allow further functionalization of the slippery surfaces with a diverse variety of materials, meanwhile the anti-fouling and dynamically dewetting "liquid-like" brushes permit minimum background contamination. Proof-of-concept demonstrations include PDA-initiated photografting for stimuli-responsive polymer functionalization, protein immobilization for microarray-based immunoassays, as well as sliding-induced selective dewetting of organic solutions to pattern photoluminescent perovskite microcrystals and nanoparticles. The current approach illustrates the potential for applying patterned slippery surfaces with multifunctional architectures in many fields.
机译：光滑的型空心共价连接液体能够平稳，透明，压力和耐温和耐液体排斥涂层。这种表面的模式官能化将在从生物传感器到可持续智能表面的广泛应用中推动技术的发展和基本谅解。在此，开发了一种与微滴限制合成结合微滴的微接触的微观印刷方法，以通过多官能多德米胺（PDA）阵列用“液体样”线性聚（二甲基硅氧烷）稳定的光滑表面。使用甘油和非离子表面活性剂Tween-20，将含有多巴胺单体的微型滤波器阵列印刷到光滑的表面上，并用作PDA微图案的原位生长的微反应器。狭窄的生长方法能够可靠地实现图案的可调特征尺寸，高度和形态，通过该图案，通过该亚微米分量计PDA点阵列超过厘米正方形图案区域。此外，反应性和亲水PDA微量单独允许具有多种材料的光滑表面的进一步官能化，同时防污染和动态脱刷“液体状”刷子允许最小背景污染。概念证据示范包括用于刺激响应性聚合物官能化的PDA-发起的摄影，用于微阵列的免疫测定蛋白质固定化，以及滑动诱导的有机溶液的选择性脱模，以图案的光致发光钙钛矿微晶和纳米颗粒。当前方法说明了在许多领域中使用多功能架构的图案化滑曲面的可能性。

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  • 来源
    《Advanced Functional Materials》 |2021年第19期|2100447.1-2100447.12|共12页
  • 作者

    Fang Lvye; Zhang Jinghua; Chen Yuxin; Liu Shilin; Chen Qiyuan; Ke Ao; Duan Liting; Huang Shilin; Tian Xuelin; Xie Zhuang;

  • 作者单位

    Sun Yat Sen Univ Sch Mat Sci & Engn Guangzhou 510275 Peoples R China|Sun Yat Sen Univ Key Lab Polymer Composite & Funct Mat Minist Educ Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Mat Sci & Engn Guangzhou 510275 Peoples R China|Sun Yat Sen Univ Key Lab Polymer Composite & Funct Mat Minist Educ Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Mat Sci & Engn Guangzhou 510275 Peoples R China|Sun Yat Sen Univ Key Lab Polymer Composite & Funct Mat Minist Educ Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Mat Sci & Engn Guangzhou 510275 Peoples R China|Sun Yat Sen Univ Key Lab Polymer Composite & Funct Mat Minist Educ Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Mat Sci & Engn Guangzhou 510275 Peoples R China|Sun Yat Sen Univ Key Lab Polymer Composite & Funct Mat Minist Educ Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Mat Sci & Engn Guangzhou 510275 Peoples R China|Sun Yat Sen Univ Key Lab Polymer Composite & Funct Mat Minist Educ Guangzhou 510275 Peoples R China;

    Chinese Univ Hong Kong Dept Biomed Engn Sha Tin Hong Kong Peoples R China;

    Sun Yat Sen Univ Sch Mat Sci & Engn Guangzhou 510275 Peoples R China|Sun Yat Sen Univ Key Lab Polymer Composite & Funct Mat Minist Educ Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Mat Sci & Engn Guangzhou 510275 Peoples R China|Sun Yat Sen Univ Key Lab Polymer Composite & Funct Mat Minist Educ Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Mat Sci & Engn Guangzhou 510275 Peoples R China|Sun Yat Sen Univ Key Lab Polymer Composite & Funct Mat Minist Educ Guangzhou 510275 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    confined synthesis; covalently attached liquids; patterning; polydopamine; surface functionalization;

    机译：狭窄的合成;共价附加液体;图案化;聚二胺;表面官能化;

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