Fabrication of fillable microparticles and other complex 3D microstructures.

Fabrication of fillable microparticles and other complex 3D microstructures.
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制造可填充的微粒和其他复杂的3D微观结构。

DOI:
10.1126/science.aaf7447
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发表时间:
2017-09-15
期刊:
Science (New York, N.Y.)
影响因子:
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通讯作者:
Jaklenec A
Jaklenec A
中科院分区:
其他
文献类型:
--
作者:
McHugh KJ;Nguyen TD;Linehan AR;Yang D;Behrens AM;Rose S;Tochka ZL;Tzeng SY;Norman JJ;Anselmo AC;Xu X;Tomasic S;Taylor MA;Lu J;Guarecuco R;Langer R;Jaklenec A

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由微加工和增材制造创造的三维(3D)微结构已经在许多领域展示了价值,从生物医学到微电子。然而,用于制造这些设备的技术在分辨率、材料兼容性和几何约束方面都有自己的优势和局限性,这些限制决定了可以形成的微观结构的类型。我们描述了一种微制造方法,称为聚合物层冲压组装(SEAL),并创建了可注射的脉动药物递送微粒,pH传感器和3D微流体装置,我们无法使用传统的3D打印生产。SEAL使我们能够以高分辨率生成具有复杂几何形状的微结构,生成包含固体或液体的全封闭内腔,并且可以使用任何不含加工添加剂的热塑性材料。
Three-dimensional (3D) microstructures created by microfabrication and additive manufacturing have demonstrated value across a number of fields, ranging from biomedicine to microelectronics. However, the techniques used to create these devices each have their own characteristic set of advantages and limitations with regards to resolution, material compatibility, and geometrical constraints that determine the types ofmicrostructures that can be formed.We describe a microfabrication method, termed StampEd Assembly of polymer Layers (SEAL), and create injectable pulsatile drug-delivery microparticles, pH sensors, and 3D microfluidic devices that we could not produce using traditional 3D printing. SEAL allows us to generate microstructures with complex geometry at high resolution, produce fully enclosed internal cavities containing a solid or liquid, and use potentially any thermoplastic material without processing additives.
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