Scientists Create Topical Skin Patch That Kills Cancer Cells!
Researchers with the National Natural Science Foundation of China, have developed a flexible, breathable skin patch that can effectively target and destroy melanoma cancer cells while sparing healthy tissue.
The innovative device uses laser-induced graphene embedded with copper (II) oxide nanoparticles within a soft silicone (PDMS) matrix. The patch remains inactive until gently heated to about 108°F (42°C) with a low-power laser, at which point it releases copper ions directly into the tumor.
In preclinical mouse studies, the “heat-and-release” patch reduced melanoma lesions by 97% within just 10 days after two one-hour treatments. Beyond shrinking the primary tumor, the patch triggered multiple forms of “programmed cell death,” reduced cancer cell migration, and stimulated an immune response that helped prevent metastasis. Importantly, it showed no significant damage to surrounding healthy skin and avoided harmful copper accumulation in major organs. The patch is stretchable, transparent, reusable, and easy to apply, making it a potentially convenient and less invasive alternative to traditional surgical excision for skin cancer.
Key Takeaways From This Study:
These early study results, combined with the patch’s reusability and ease of administration, led the research team to conclude that the technology could someday be used for targeted, safe and efficient melanoma treatment in humans.
The unique “heat-and-release” patch operates by:
- Triggering Multiple Cell Deaths: The copper ions cause “programmed cellular death” including apoptosis, cuproptosis, and ferroptosis in the tumor cells.
- Preventing Metastasis: In animal trials, it stimulated an immune response that inhibits tumor cell migration.
- Non-Invasive Use: It is stretchable, transparent, reusable, and serves as a surgery-free alternative to traditional excision.
You can read the complete study which was published in the ACS Nano Journal by clicking on this link.