Recently, a research team led by Professor Xie Xi from the School of Electronics and Information Technology at Sun Yat-sen University has made a significant breakthrough in the field of flexible electrode implantation technology. They have put forward a "tip-focused radiofrequency perforation" strategy. This innovative approach allows for the direct implantation of flexible electrode wires into dense biological tissues, such as skin and muscle, without the need for surgical procedures or needle assistance.

The technology works by applying a localized radiofrequency electric field at the tip of the flexible electrode, creating instantaneous thermal perforation. This enables the electrode to be inserted in a minimally invasive way, significantly reducing the risk of bleeding and tissue damage.

In animal experiments, the implanted flexible electrodes, which the research team has aptly named "flexible electronic hairs," have demonstrated their ability to stably acquire electromyographic signals with a high signal-to-noise ratio. When combined with machine learning algorithms, these electrodes can accurately predict limb movements and facilitate the control of prosthetic limbs.

This groundbreaking achievement has been published in Nature Sensors, offering a promising new avenue for wearable electrophysiological monitoring, neurological rehabilitation, and human-machine interaction.