A revolutionary wearable patch capable of detecting early signs of the most deadly form of skin cancer has been created. This wireless device enables patients to conduct self-screening at home, potentially identifying melanoma sooner and reducing the need for unnecessary biopsies, as per researchers.
In an effort to make screening more accessible and less intrusive, American scientists developed a battery-free patch. They emphasized that skin cancer, especially melanoma, poses a significant threat as one of the most hazardous types of cancer.
Melanoma UK estimates that over 19,000 individuals in the UK will receive a melanoma diagnosis by 2025. Early detection is vital for effective treatment, yet current methods often rely on visual inspection, which can be subjective and miss crucial early warning signs.
The new patch, spearheaded by Dr. Mohammad Moghimi, measures the bioimpedance of skin lesions in a straightforward and non-invasive manner. Bioimpedance assesses how well electrical signals pass through living tissue, with cancerous areas exhibiting different properties than healthy skin. By gauging bioimpedance, the patch can pinpoint abnormal areas that may necessitate further medical assessment.
At Wake Forest University School of Medicine in North Carolina, a research team crafted a flexible, chip-less, and battery-free patch that adheres directly to the skin and interacts wirelessly with a small reader device. Ten volunteers participated in the evaluation of the patch’s effectiveness, with each volunteer having the patch applied to both a pigmented skin lesion and nearby healthy skin.
Through safe electrical signals, the patch measures bioimpedance, revealing significant distinctions between healthy and abnormal skin. Published in Biomedical Innovations, the study showcased the patch’s ability to clearly differentiate between healthy skin and potentially concerning spots.
Regardless of skin tone, the patch detected unique electrical signals from suspicious moles or lesions. Dr. Moghimi stated, “Skin cancer is most treatable when detected early, but many lack easy access to specialized dermatology care.” The wearable and affordable patch aims to empower patients and primary care providers to monitor suspicious skin lesions and seek assistance promptly.
Distinguished by its battery-free and chip-less design, the patch is lightweight, disposable, and cost-effective. It offers objective data on skin health, reducing the need for unnecessary biopsies and aiding doctors in making informed decisions. Additionally, the patch provides supplementary information on lesions, complementing other diagnostic methods like imaging techniques.
Dr. Moghimi, an Assistant Professor of biomedical engineering at Wake Forest, expressed the goal of making early skin cancer detection universally accessible. The next phase involves enhancing the patch by incorporating conductive hydrogel electrodes for improved performance and comfort, along with conducting larger clinical studies to evaluate its real-world effectiveness and differentiation between benign and malignant lesions.