LED Light and Tin nanoflakes Show Promise in Targeted Cancer Therapy
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A groundbreaking new cancer treatment utilizing LED light and ultra-thin flakes of tin is demonstrating remarkable success in eliminating cancer cells while safeguarding healthy tissue, offering a potential choice to the harsh side effects of customary therapies.
Cancer remains a global health crisis, and the development of more effective and less invasive treatments is a critical need.This promising therapy is the result of a partnership between The University of Texas at Austin and the University of Porto in Portugal, facilitated by the UT Austin Portugal Program.The collaboration’s core mission is to increase the accessibility and affordability of light-based cancer treatments, which currently often require expensive equipment and can risk damaging surrounding healthy tissue.Researchers have achieved this by replacing costly lasers with LEDs and introducing tin-based “SnOx nanoflakes” – where “Sn” represents the chemical symbol for tin.
“Our goal was to create a treatment that is not only effective but also safe and accessible,” explained a lead researcher on the project, Jean Anne Incorvia, a professor at the Cockrell School of Engineering. “With the combination of LED light and SnOx nanoflakes, we’ve developed a method to precisely target cancer cells while leaving healthy cells untouched.”
Highly Effective Against Multiple Cancer Types
Published recently in ACS Nano, the research details the therapy’s effectiveness against both colorectal and skin cancer cells. In laboratory tests, the LED-driven treatment eradicated up to 92% of skin cancer cells and 50% of colorectal cancer cells after just 30 minutes of exposure, all while leaving healthy human skin cells unharmed. These results underscore the therapy’s precision and safety profile.
The treatment leverages the principles of near-infrared photothermal therapy, a promising approach that uses light to generate heat and destroy cancer cells without the need for surgery or toxic drugs.
From Lab to Patient: A Vision for Accessible Care
Researchers are now focused on further understanding the interaction between light and heat within the process,and exploring additional materials to potentially enhance the treatment’s efficacy. Crucially, they are also working to develop practical medical devices capable of delivering the therapy directly to patients.
Artur Pinto, a researcher at the Faculty of Engineering of the University of Porto and the project’s lead in Portugal, envisions a future where this technology is widely available. “Our ultimate goal is to make this technology available to patients everywhere, especially places where access to specialized equipment is limited, with fewer side effects and lower cost,” he stated. “For skin cancers in particular, we envision that one day, treatment could move from the hospital to the patient’s home. A portable device could be placed on the skin after surgery to irradiate and destroy any remaining cancer cells, reducing the risk of recurrence.”
Expanding the Scope of Research
The initial success of the collaboration has spurred further investment. The UT Austin Portugal Program has provided additional funding to develop an implant for breast cancer patients utilizing the same LED and nanoflake technology. This continued partnership promises to unlock even more personalized, affordable, and pain-free cancer treatments in the years to come.
The research team includes Ph.D.student Hui-Ping Chang, who spearheaded the development of the nanoflakes, and undergraduate student Eva nance of The University of Texas at Austin. contributing from the University of Porto were Filipa A.L.S. Silva, Susana G. Santos, and professor Fernão Magalhães, alongside José R. Fernandes of the University of Trás-os-Montes and Alto Douro, who developed the LED systems.
A Long-Standing Partnership Driving Innovation
The UT Austin Portugal Program, a 17-year partnership between UT and the Portuguese Foundation of Science and Technology (FCT), has been instrumental in fostering this breakthrough. portugal maintains similar collaborations with MIT and carnegie Mellon University, and its partnership with UT was recently renewed for another five years, signaling a continued commitment to scientific advancement. This collaborative spirit is paving the way for a future where cancer treatment is more effective, accessible, and compassionate for patients worldwide.
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