Researchers from King Abdullah University of Science and Technology in Thuwal, Saudi Arabia have developed a medical patch inspired by octopus suckers to address the skin irritation caused by traditional adhesive patches.

Common patches use glue, which can cause itching, inflammation and even blisters, particularly when wet. Seeking a reusable, less painful alternative, the research team created the “adhesive miniaturised octopus-like suckers” (AMOS) patch.

The AMOS patch was designed using a 3D-printed mould to form tiny domes and channels, mimicking octopus suckers. Made from a biocompatible polymer, it adheres to the skin by creating small vacuums, sticking securely without the need for chemical adhesives. This allows for painless removal and reapplication, even on wet or hairy skin.

In tests, the patch held electrocardiogram electrodes in place during exercise, providing reliable readings without causing irritation. It also successfully monitored biosignals over a 3 000-km hand-cycling trip.

Lead scientist, Nazek El-Atab, aims to further develop the design through extensive clinical trials: “Our goal is to develop a comprehensive, versatile, skin-attachable device that can revolutionise wearable health monitoring and diagnostic technologies.”

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