中国科学院发表最新Science论文：液滴打印，为脑机接口带来新思路

Core Viewpoint - The article discusses a novel "drop-printing" strategy for the transfer of ultra-thin films to complex biological surfaces, addressing the challenge of stress-induced damage in flexible electronics and brain-machine interfaces [4][6][7]. Group 1: Research Background - The rapid development of wearable electronics, brain-machine interfaces, and neural rehabilitation technologies has created a need for precise electronic devices that can conform to biological tissues [3]. - Traditional attachment methods often lead to significant internal stress in devices, particularly when applied to uneven surfaces like skin or neural tissues, risking damage to fragile components [3]. Group 2: Innovative Methodology - The "drop-printing" technique allows for the attachment of fragile, non-stretchable films to surfaces such as skin, polymers, and neural tissues without damage [4][6]. - This method utilizes droplets to create a lubricating layer between the film and the target surface, facilitating local sliding during the attachment process, which prevents excessive stretching and reduces stress concentration [6][7]. Group 3: Experimental Validation - In vivo experiments demonstrated the successful attachment of a 2-micron thick silicon-based electronic film to the surface of mouse neural and brain tissues using the drop-printing technique [4][6]. - The resulting neural electronic interface achieved high spatiotemporal resolution for infrared light modulation of internal nerves [6][7]. Group 4: Implications and Future Applications - The research presents a groundbreaking approach to flexible electronics, providing critical technological support for the development of brain-machine interfaces and other interdisciplinary fields [7].