Data underlying the paper: Inkjet-printed microgel-based etalon sensor

This study investigates the suitability of poly(N-isopropylacrylamide) (pNIPAm)-based microgelsfor inkjet printing, focusing on optimizing their properties for effective deposition. Key parameters, including surfacetension, viscosity, and particle size, are characterized to ensure compatibility with inkjet-printing requirements. Theaddition of surfactants tune the suspensions’ properties to be in line with the requirements of inkjet printing. Jetting ofpNIPAm-based microgels on gold-coated substrates forms a cohesive drop in a range of few millimeters. Optical andscanning electron microscopy confirm the formation of a uniform microgel layer. The optical reflectance spectroscopyresults indicate that inkjet-printed microgel-based etalons can effectively respond to changes in temperature and glucoseconcentration. In-liquid atomic force microscopy demonstrates the swelling dynamics of the microgels in differentglucose concentrations, shedding light on their response dynamics.本研究探究了基于聚(N-异丙基丙烯酰胺)(poly(N-isopropylacrylamide)，简称pNIPAm)的微凝胶用于喷墨打印(inkjet printing)的适用性，重点围绕优化其性能以实现高效沉积展开。研究对包括表面张力、粘度及粒径在内的关键参数进行了表征，以确保其适配喷墨打印的工艺要求。通过添加表面活性剂可调控微凝胶悬浮液的性能，使其符合喷墨打印的相关规范。在镀金基底上喷射pNIPAm基微凝胶，可形成直径为数毫米的内聚液滴。光学显微镜与扫描电子显微镜(scanning electron microscopy, 简称SEM)的观测结果证实，可制备得到均匀的微凝胶涂层。光学反射光谱测试结果表明，喷墨打印制备的微凝胶基法布里-珀罗标准具(etalon)可有效响应温度与葡萄糖浓度的变化。液相原子力显微镜(in-liquid atomic force microscopy, 简称AFM)观测揭示了不同葡萄糖浓度下微凝胶的溶胀动力学过程，阐明了其响应动力学特性。