Biomolecular proton conducting materials have been touted as promising for seamlessly and directly interfacing natural biological systems with traditional artificial electronics. As such, proton conduction has been explored for a variety of protein- and polypeptide-based materials. Within this context, cephalopod structural proteins called reflectins have demonstrated several favorable properties, including outstanding electrical figures of merit as proton conductors and intrinsic biocompatibility with cellular systems. However, the processing of reflectins into films has typically used low-throughput material-intensive strategies and has often required organic solvents. Herein, we report the preparation of devices from active layers fabricated via inkjet printing of reflectin solubilized in water and the systematic evaluation of their electrical performance. Taken together, our findings represent a step forward in the manufacturing and development of unconventional bioelectronic platforms from the reflectin family of proteins.

中文翻译：

---

喷墨印刷反射膜中的质子传导

生物分子质子传导材料被吹捧为有希望将自然生物系统与传统人工电子设备无缝直接连接。因此，已经探索了多种基于蛋白质和多肽的材料的质子传导。在此背景下，被称为反射蛋白的头足类结构蛋白已显示出几种有利的特性，包括作为质子导体的出色电特性和与细胞系统的内在生物相容性。然而，将反射蛋白加工成薄膜通常使用低通量材料密集型策略，并且通常需要有机溶剂。在此处，我们报告了通过喷墨打印溶解在水中的反射蛋白制备的活性层制备器件及其电气性能的系统评估。综上所述，我们的研究结果代表了反射蛋白家族非常规生物电子平台的制造和开发向前迈进了一步。