我国科学家开发“液滴打印”新技术！

Core Viewpoint - Chinese scientists have developed a new technology called "droplet printing" that allows for the precise attachment of ultra-thin electronic membranes to complex surfaces, including biological tissues, using a droplet of water as a medium [1][4]. Group 1: Technology Overview - The "droplet printing" technology enables the attachment of fragile electronic devices to irregular surfaces such as human skin, nerves, and the brain without damaging the membranes [1][2]. - A droplet of water acts as a gentle intermediary, facilitating the attachment process through capillary action and serving as a lubricant to prevent stress and damage during application [1][2]. Group 2: Experimental Results - Experiments demonstrated that even a gold film with a thickness of only 150 nanometers could be successfully attached to complex structures like paramecia, dandelion fluff, and shell textures [2]. - In live experiments, silicon-based electronic membranes were printed onto the sciatic nerve and cerebral cortex of mice, achieving non-destructive and conformal attachment, which successfully stimulated nerve activity and recorded clear neural signals [2][3]. Group 3: Future Applications - This technology has the potential to revolutionize the preparation of electronic devices, with applications in brain-machine interfaces, neural regulation, and wearable devices, as well as extending to tissue engineering and smart displays [4]. - The ease and precision of this method could lead to a future where various electronic devices can be effortlessly and accurately "printed" onto skin, organs, or nerves, starting from just "a droplet of water" [4].