POSTECH Develops Heat-Releasable Medical Patch with Shape-Memory Pyramid Structure, Minimizing Skin Damage for Fragile Skin

September 20, 2026

CHOSUNBIZ South Korea

Overview

A research team from Pohang University of Science and Technology (POSTECH), in collaboration with Texas Tech and Northwestern Universities, has developed a medical adhesive patch with adjustable adhesion, specifically designed for fragile skin. Utilizing a shape-memory polymer (SMP) with a fine pyramid structure, the patch maintains strong adhesion under normal conditions and allows for easy, low-force removal when heat is applied. This innovation is engineered to significantly reduce skin damage in patients requiring repeated sensor attachment and removal.

In Depth

Key Findings

Researchers at Pohang University of Science and Technology (POSTECH), in partnership with Texas Tech University and Northwestern University, have successfully developed a novel medical adhesive patch that offers adjustable adhesion and easy removal upon heat application. This breakthrough is particularly significant for patients with fragile skin, as it aims to substantially reduce the risk of skin damage associated with medical adhesive use.

Technical / Clinical Details

The innovative medical patch is based on a shape-memory polymer (SMP) engineered with a fine pyramid-like microstructure on its surface. This unique architecture ensures strong adhesion to the skin under normal conditions, securely holding sensors or dressings in place.
When subjected to a mild heat stimulus, such as warm water or gentle airflow, the SMP undergoes a shape change. This structural alteration causes the pyramid microstructures to flatten or change configuration, effectively reducing the contact area between the patch and the skin.
The reduction in contact area dramatically lowers the force required to remove the patch, thereby minimizing irritation and damage to delicate skin. This addresses a common issue with traditional medical adhesives, which often cause stratum corneum stripping or allergic reactions upon removal, especially in vulnerable populations like the elderly, infants, or patients with compromised skin conditions.

Background & Context

Medical adhesive patches are indispensable in healthcare for various applications, including diagnostic sensor attachment, drug delivery, and wound care. However, Medical Adhesive-Related Skin Injury (MARSI) remains a significant challenge, particularly with long-term wear or frequent changes. MARSI can lead to pain, increased infection risk, higher treatment costs, and a substantial decrease in patient quality of life.

This development represents a critical advancement in addressing MARSI by integrating advanced adhesive technology with smart materials science. The utilization of shape-memory polymers provides an elegant solution that simultaneously enhances device usability and patient safety, setting a new standard for medical adhesive design.

Strategic Significance & Outlook

This heat-releasable medical patch is poised to be a transformative tool in home healthcare and the management of chronic conditions requiring frequent monitoring, by significantly reducing patient discomfort. Following clinical trials and regulatory approvals, its practical application will not only improve the quality of life for patients with fragile skin but also alleviate the burden on healthcare providers. Beyond medical uses, this technology holds potential for other industrial applications where controlled, on-demand debonding is desired, offering a versatile platform for future adhesive innovations.

Source: https://biz.chosun.com/en/en-science/2026/09/16/CWTSV2LEQVGCDAOZCXU66HU3DY/

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