Laboratoire de l'Intégration du Matériau au Système UMR 5218, Université de Bordeaux, F-33405 Talence, France.
CNRS - UMR 7361, Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute Alsace, 15 rue Jean Starcky, Mulhouse 68057, France.
ACS Sens. 2023 May 26;8(5):1912-1917. doi: 10.1021/acssensors.2c02560. Epub 2023 Apr 5.
Fiber optics offer an emerging platform for chemical and biological sensors when engineered with appropriate materials. However, the large aspect ratio makes the optical fiber a rather challenging substrate for standard microfabrication techniques. In this work, the cleaved end of an optical fiber is used as a fabrication platform for cantilever sensors based on functional polymers. The through-fiber fabrication process is triggered by photo-initiated free-radical polymerization and results in a high-aspect-ratio polymer beam in a single step. The dynamic mode application of these cantilevers is first demonstrated in air. These cantilevers are then tuned for sensing applications, including humidity and chemical sensing based on molecularly imprinted polymers.
光纤在与适当材料结合后，为化学和生物传感器提供了一个新兴的平台。然而，大的纵横比使得光纤对于标准微制造技术来说是一个相当具有挑战性的基底。在这项工作中，光纤的切割端被用作基于功能聚合物的悬臂梁传感器的制造平台。贯穿光纤的制造过程由光引发的自由基聚合触发，从而在单个步骤中得到高纵横比的聚合物梁。这些悬臂梁的动态模式应用首先在空气中进行了演示。然后，这些悬臂梁被调整用于传感应用，包括基于分子印迹聚合物的湿度和化学传感。
