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Fabrication of Patterned Concave Microstructures by Inkjet Imprinting

机译：通过喷墨压印制作图案化的凹形微结构

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摘要

Concave microstructures such as microwells and microgrooves are widely utilized in fields such as biochips, microfluidics, and functional devices. Previously, concave microstructure fabrication was mostly based on laser etching or lithography which is either costly or of multisteps. The inkjet etching method is a direct structuring technique, but limited by its inherent transverse ink diffusion that leads to low feature resolution. Nanoimprint lithography can reach submicro and even nano ranges, whereas an elaborate template is needed. Thus, it is still a challenge to realize controllable fabrication of concave microstructures in large areas with high efficiency and resolution. Here, a template-free strategy to fabricate concave microstructures with high resolution by inkjet imprinting is provided. In this method, a sacrificial ink is inkjet-printed onto a precured viscoelastic surface and imprints its shapes to construct concave microstructures. The morphology of the microstructures could be adjusted by controlling the interaction between the two immiscible phases. The microwells/microgrooves could be used to pattern single cells and functional materials such as optical, electronic, and magnetic nanoparticles. These results will open a new pathway to fabricate concave microstructures and broaden their applications in various functional devices.
机译：凹形微结构（如微孔和微槽）在生物芯片，微流控和功能设备等领域得到了广泛应用。以前，凹形微结构的制造主要是基于激光刻蚀或光刻，既昂贵又需要多步骤。喷墨蚀刻方法是一种直接的结构化技术，但受到其固有的横向墨水扩散的限制，从而导致低的特征分辨率。纳米压印光刻技术可以达到亚微米甚至纳米范围，而需要精心制作的模板。因此，以高效率和分辨率实现大面积的凹形微结构的可控制造仍然是一个挑战。在这里，提供了一种无模板的策略，可以通过喷墨压印来制造具有高分辨率的凹形微结构。在这种方法中，将牺牲性墨水喷墨打印到预先固化的粘弹性表面上，并打印其形状以构造凹入的微结构。微观结构的形态可以通过控制两个不混溶相之间的相互作用来调节。微孔/微槽可用于图案化单细胞和功能性材料，例如光学，电子和磁性纳米颗粒。这些结果将为制造凹形微结构开辟新途径，并拓宽其在各种功能器件中的应用。

著录项

  • 来源
    《Advanced Functional Materials》 |2015年第22期|3286-3294|共9页
  • 作者

    Bao Bin; Jiang Jieke; Li Fengyu; Zhang Pengchao; Chen Shuoran; Yang Qiang; Wang Shutao; Su Bin; Jiang Lei; Song Yanlin;

  • 作者单位

    Chinese Acad Sci, BNLMS, Key Lab Green Printing, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China|Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China;

    Chinese Acad Sci, BNLMS, Key Lab Green Printing, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China|Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China;

    Chinese Acad Sci, BNLMS, Key Lab Green Printing, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China;

    Chinese Acad Sci, BNLMS, Key Lab Green Printing, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China|Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China;

    Chinese Acad Sci, BNLMS, Key Lab Green Printing, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China|Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China;

    Chinese Acad Sci, BNLMS, Key Lab Green Printing, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China|Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China;

    Chinese Acad Sci, BNLMS, Key Lab Green Printing, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China;

    Chinese Acad Sci, BNLMS, Key Lab Green Printing, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China;

    Chinese Acad Sci, BNLMS, Key Lab Green Printing, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China;

    Chinese Acad Sci, BNLMS, Key Lab Green Printing, Key Lab Organ Solids,Inst Chem, Beijing 100190, Peoples R China;

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

    inkjet imprinting; microstructures; patterning;

    机译：喷墨压印;微结构;构图;

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