It's in the Fine Print: Erasable Three-Dimensional Laser-Printed Micro- and Nanostructures.,Angewandte Chemie International Edition

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It's in the Fine Print: Erasable Three-Dimensional Laser-Printed Micro- and Nanostructures.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2019-11-21 , DOI: 10.1002/anie.201910634
David Gräfe ₁ , Sarah L Walden ₁ , James Blinco ₁ , Martin Wegener _{2,

3} , Eva Blasco ₄ , Christopher Barner-Kowollik _{1,

4}

Affiliation

3D printing, on all scales, is currently a vibrant topic in scientific and industrial research as it has enormous potential to radically change manufacturing. Owing to the inherent nature of the manufacturing process, 3D printed structures may require additional material to structurally support complex features. Such support material must be removed after printing-sometimes termed subtractive manufacturing-without adversely affecting the remaining structure. An elegant solution is the use of photoresists containing labile bonds that allow for controlled cleavage with specific triggers. Herein, we explore state-of-the-art cleavable photoresists for 3D direct laser writing, as well as their potential to combine additive and subtractive manufacturing in a hybrid technology. We discuss photoresist design, feature resolution, cleavage properties, and current limitations of selected examples. Furthermore, we share our perspective on possible labile bonds, and their corresponding cleavage trigger, which we believe will have a critical impact on future applications and expand the toolbox of available cleavable photoresists.

中文翻译：

它位于精美印刷品中：可擦除三维激光打印微米和纳米结构。

各种规模的 3D 打印目前是科学和工业研究中一个充满活力的话题，因为它具有从根本上改变制造业的巨大潜力。由于制造工艺的固有性质，3D 打印结构可能需要额外的材料来在结构上支持复杂的特征。这种支撑材料必须在打印后去除（有时称为减材制造），而不会对剩余结构产生不利影响。一个优雅的解决方案是使用含有不稳定键的光刻胶，可以通过特定的触发器进行受控的裂解。在此，我们探索用于 3D 直接激光写入的最先进的可切割光刻胶，以及它们在混合技术中结合增材制造和减材制造的潜力。我们讨论光刻胶设计、特征分辨率、解理特性以及所选示例的当前限制。此外，我们分享了对可能的不稳定键及其相应的裂解触发因素的看法，我们相信这将对未来的应用产生关键影响，并扩展可用的可裂解光刻胶的工具箱。

更新日期：2020-01-23

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