US-Korea Planning Visit: On-the-Fly Manufacturing of 3D Shaped Particles

美韩计划访问：3D 形状颗粒的即时制造

• 批准号: 1444104
• 负责人: Aram Chung
• 金额: $ 2.76万
• 依托单位: Rensselaer Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-06-01 至 2015-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1444104&HistoricalAwards=false
• 关键词: US; Korea; Planning; Visit; Fly

AbstractThe overall goal of the proposed research is to establish a new collaboration between Dr. Aram Chung at Rensselaer Polytechnic Institute (RPI) from the US and Dr. Sunghoon Kwon at Seoul National University (SNU) in Korea for collaborative research on "Optofluidics". The two research groups will develop a new manufacturing paradigm based on interactions between fluids and light, which is referred to as Optofluidic Manufacturing. In short, Optofluidic Manufacturing is comprised of two coupled processes: (1) Inertial flow in a microchannel, and (2) Light activated polymerization. The Chung group has a strong expertise in understanding inertial flow for flow cross sectional engineering (Step 1). On the other hand, the Kwon group has pioneered the light activated polymerization process termed Optofluidic Maskless Lithography (OFML) (Step 2). Therefore, two research groups with distinct and complementary disciplines in fluid mechanics (Dr. Chung) and photonics (Dr. Kwon) make an ideal collaborative relationship. This synergistic "Opto+fluidic" integration will open new scientific directions to solve complex unconventional problems. Complex shaped particles can provide unique properties and additional functionalities that can be of great practical use for applications such as self-assembly, photonics, biotechnology, structural materials, and pharmaceutics. However, it still remains challenging to fabricate large quantities of uniform 3D shaped particles with scalability, tunable geometries, and adjustable functionalities. Optofluidic manufacturing proposed in this project has the ability to precisely control flow and light conditions, allowing for dynamic reconfiguration of the fabrication. The process generates various scalable and tunable shaped particles using a single device with high-throughput and full automation. Briefly, flow streams of photosensitive fluids in a microchannel are horizontally engineered via fluid inertia and then exposed to orthogonal patterned UV light, synthesizing complex 3D shaped particles. The benefit of the proposed manufacturing system is its ability to be readily reconfigured. In contrast, most of the current particle manufacturing systems have a lack of tunability for particle shape, but by modulating flow and light settings on-the-fly, arbitrary particle shapes can be generated in real-time. Therefore, through this collaboration, full controls of fluid and light will be demonstrated, enabling a new paradigm of complex shaped particle generation.

AbstractThe拟议的研究的总体目标是建立一个新的合作之间的Aram钟博士在伦斯勒理工学院（RPI）从美国和博士Sunhoon Kwon在首尔国立大学（SNU）在韩国的合作研究“光流体”。 这两个研究小组将开发一种基于流体和光之间相互作用的新制造模式，称为Optofluidic Manufacturing。 简而言之，光流体制造由两个耦合过程组成：（1）微通道中的惯性流动，以及（2）光活化聚合。 Chung集团在了解惯性流的流动截面工程（步骤1）方面具有很强的专业知识。 另一方面，Kwon集团开创了称为光流体无掩模光刻（OFML）的光活化聚合工艺（步骤2）。 因此，两个在流体力学（钟博士）和光子学（权博士）方面具有独特和互补学科的研究小组建立了理想的合作关系。这种协同的“Opto+fluidic”集成将为解决复杂的非常规问题开辟新的科学方向。复杂形状的颗粒可以提供独特的性质和额外的功能，这些性质和功能对于诸如自组装、光子学、生物技术、结构材料和制药学的应用具有很大的实际用途。 然而，制造大量具有可扩展性、可调几何形状和可调功能的均匀3D形状的颗粒仍然具有挑战性。 该项目中提出的光流体制造具有精确控制流动和光条件的能力，允许动态重新配置制造。 该工艺使用单个设备以高通量和全自动化生成各种可扩展和可调形状的颗粒。 简而言之，微通道中的光敏流体的流动流通过流体惯性被水平地设计，然后暴露于正交图案化的UV光，合成复杂的3D形状的颗粒。 所提出的制造系统的好处是它能够很容易地重新配置。 相比之下，大多数当前的颗粒制造系统缺乏颗粒形状的可调性，但是通过在运行中调制流量和光设置，可以实时生成任意颗粒形状。 因此，通过这种合作，将展示对流体和光的完全控制，从而实现复杂形状粒子生成的新范式。