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Customizable and highly sensitive 3D micro-springs produced by two-photon polymerizations with improved post-treatment processes
Applied Physics Letters ( IF 4 ) Pub Date : 2022-04-26 , DOI: 10.1063/5.0088481 Xinggang Shang 1, 2, 3 , Ning Wang 2, 3 , Zimeng Wang 4 , Hanqing Jiang 2, 3 , Yunfei Jia 4 , Nanjia Zhou 2, 3 , Min Qiu 2, 3
Applied Physics Letters ( IF 4 ) Pub Date : 2022-04-26 , DOI: 10.1063/5.0088481 Xinggang Shang 1, 2, 3 , Ning Wang 2, 3 , Zimeng Wang 4 , Hanqing Jiang 2, 3 , Yunfei Jia 4 , Nanjia Zhou 2, 3 , Min Qiu 2, 3
Affiliation
Springs are ubiquitous in a variety of scientific and engineering fields. However, the comprehensive study on mechanical properties of micro-spring has not been fully conducted yet due to a lack of reliable productions of varied-shaped micro-springs. Here, we report the design and manufacturing of triple-helix-shaped springs employing two-photon polymerization (TPP) technologies and present a systemic study on the mechanical properties of micro-springs particularly involving spring constants of k. To construct high-quality hollow microstructures, we optimize the TPP process by combining violet light post-treatment with a proper selection of cleaning liquid. Consequently, we demonstrate that the sensitives k can be actively tuned over a range of two orders of magnitude, from ∼1.5 to ∼108.2 μN/ μm while maintaining a high resolution of ∼1 μN/ μm. Furthermore, compression tests showcase an excellent agreement among all force-vs-displacement lineshapes, resulting in a small k fluctuation of <1%. On the whole, we expected that the modified TPP technique along with proposed helical springs opens an alternative avenue toward micro-scale force detection, leading to potential applications in the field of bio-sensing, where typical forces to be measured exist within a broad range from several piconewtons to several micronewtons.
中文翻译:
通过改进后处理工艺的双光子聚合生产的可定制且高度敏感的 3D 微弹簧
弹簧在各种科学和工程领域中无处不在。然而,由于缺乏可靠的多形状微弹簧生产,对微弹簧机械性能的综合研究尚未完全开展。在这里,我们报告了采用双光子聚合 (TPP) 技术的三螺旋形弹簧的设计和制造,并对微型弹簧的机械性能进行了系统研究,特别是涉及弹簧常数 k。为了构建高质量的中空微结构,我们通过将紫光后处理与适当选择的清洁液相结合来优化 TPP 工艺。因此,我们证明可以在两个数量级的范围内主动调整灵敏度 k,从 ~1.5 到 ~108.2 μN/ μm,同时保持 ~1 μN/ μm 的高分辨率。此外,压缩测试显示所有力与位移线形之间的一致性非常好,导致 k 波动小于 1%。总的来说,我们预计改进的 TPP 技术连同拟议的螺旋弹簧开辟了一条通往微尺度力检测的替代途径,从而导致在生物传感领域的潜在应用,其中要测量的典型力存在于广泛的范围内从几皮牛顿到几微牛顿。
更新日期:2022-04-26
中文翻译:
通过改进后处理工艺的双光子聚合生产的可定制且高度敏感的 3D 微弹簧
弹簧在各种科学和工程领域中无处不在。然而,由于缺乏可靠的多形状微弹簧生产,对微弹簧机械性能的综合研究尚未完全开展。在这里,我们报告了采用双光子聚合 (TPP) 技术的三螺旋形弹簧的设计和制造,并对微型弹簧的机械性能进行了系统研究,特别是涉及弹簧常数 k。为了构建高质量的中空微结构,我们通过将紫光后处理与适当选择的清洁液相结合来优化 TPP 工艺。因此,我们证明可以在两个数量级的范围内主动调整灵敏度 k,从 ~1.5 到 ~108.2 μN/ μm,同时保持 ~1 μN/ μm 的高分辨率。此外,压缩测试显示所有力与位移线形之间的一致性非常好,导致 k 波动小于 1%。总的来说,我们预计改进的 TPP 技术连同拟议的螺旋弹簧开辟了一条通往微尺度力检测的替代途径,从而导致在生物传感领域的潜在应用,其中要测量的典型力存在于广泛的范围内从几皮牛顿到几微牛顿。