通过实时光对光固化和4D打印进行可视化
Fan Gu1, Mengxing Ji1, Lisha Zhang1
1Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai, 200237, China.
Nature communications
|May 5, 2025
概括
研究人员开发了具有室温光 (RTP) 的新型光固化材料,用于实时监测. 这些发光材料可以在4D打印应用中实现全彩显示和动态形状变化.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 摄影化学的使用.
背景情况:
- 摄影固化过程的实时可视化仍然是一个重大挑战.
- 有机室温光 (RTP) 对环境刚性变化很敏感,为监测提供了潜力.
- 现有的光固化材料缺乏集成的实时监控功能.
研究的目的:
- 开发具有集成实时可视化功能的光固化材料.
- 使用室温光 (RTP) 来监控光固化过程和4D打印.
- 展示RTP发射材料在动态4D打印和形状记忆过程中的应用.
主要方法:
- 在光固化配方中引入,以利用液体变固过程中刚性诱导的RTP变化.
- 使用开发的光固化材料制造发光膜和3D物体.
- 描述RTP发射,固化动态和4D打印性能.
主要成果:
- 在固化薄膜中实现全彩RTP发射 (蓝色,绿色,色),可视实时监控固化速度,内部环境和转换.
- 成功展示了2D (花纹) 和3D (太空人,熊猫) 对象的4D打印,具有动态形状记忆能力和生动的RTP发射.
- 通过实时光调节,在4D打印材料中展示了增强的可视化和对动态变形的控制.
结论:
- 开发的光光电固化材料为固化过程提供了一个简单和实时的可视化策略.
- 这些材料可以实现先进的4D打印应用,具有动态变形和集成的发光监控.
- 这种方法为光固化和复杂的4D打印中的智能材料开辟了新的途径.
相关概念视频
01:14Photoluminescence: Applications
340
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
340
01:23Photoluminescence: Fluorescence and Phosphorescence
573
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
A pair of electrons in a...
573
01:25Fluorescence and Phosphorescence: Instrumentation
484
Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
484
01:26Variables Affecting Phosphorescence and Fluorescence
386
Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
386