Artificial intelligence (AI) is permeating every aspect of our lives in modern society. AI softwares have become essential tools in both work and life, such as ChatGPT and Deep Seek. These AI softwares  can do lots of works that ever only done by human beings, even some creative works. Many scholars believe that ‌AI is the core technology of the fourth Industrial Revolution that is happening.

It is not enough to have AI software, and corresponding hardware support is critical to maximize the potential and function of AI. Artificial muscle is the important hardware for AI because it is controllable precisely by AI software through regulating actuation electrical stimulus. But Artificial muscle is limited to the electro-mechanical conversion efficiency, thus can not fully play its potential role in artificial intelligence.

To this end, material scholars have developed powerful artificial muscle with high electro-mechanical conversion efficiency and large energy density. The breakthrough is based on the discovery of a new muscle working mechanism, that is sliding ring molecule actuation effect. As a result, the material and device performances get significantly improved. Based on these, they have further developed a smart, injectable catheter with size below 1 mm. The catheter is demonstrated to navigate freely and precisely by controlling electrical parameters that can be further accessed by AI software. Since traditional catheters in clinic is controlled by doctors using hands, it is then too hard to controll precisely and sometimes easy to result in failure of surgery. This smart catheter based on artificial muscle and AI technique is going to change that situation completely and bring enormous hope for patients.