Understanding cancer and finding effective treatments has been an ongoing challenge, but recent research has brought a glimmer of hope. Scientists have unveiled a groundbreaking way to combat cancer cells using vibrating molecules, potentially transforming cancer treatment as we know it.
At the forefront of this discovery are aminocyanine molecules, commonly used in bioimaging as synthetic dyes. These molecules, when stimulated by near-infrared light, exhibit synchronized vibrations capable of rupturing the membranes of cancer cells. This discovery marks a significant leap in the fight against cancer.
Led by a collaborative team from Rice University, Texas A&M University, and the University of Texas, this innovative approach introduces what scientists call “molecular jackhammers.”
Published in Nature Chemistry, this research signals a promising stride in the ongoing quest to revolutionize cancer treatment and offers hope for more effective, non-invasive therapies in the fight against this formidable disease.
Chemist James Tour from Rice University explained in a press release, “They are more than one million times faster in their mechanical motion than the former Feringa-type motors, and they can be activated with near-infrared light rather than visible light.”
The utilization of near-infrared light holds tremendous promise, allowing deeper penetration into the body to target cancerous growths within bones and organs, potentially eliminating the need for invasive surgeries.
In laboratory tests on cultured cancer cells, the molecular jackhammer technique demonstrated an astounding 99 percent efficacy in obliterating these cells. Encouragingly, when tested on mice with melanoma tumors, half of the animals became cancer-free, showcasing the method’s tangible impact.
The unique structure and properties of amino cyanine molecules
They enable synchronization with near-infrared light, inducing plasmons – collective vibrations across the entire molecule. Chemist Ciceron Ayala-Orozco from Rice University emphasized:
“This is the first time a molecular plasmon is utilized in this way to excite the whole molecule and to actually produce mechanical action used to achieve a particular goal – in this case, tearing apart cancer cells’ membrane.”
The plasmons, akin to molecular arms, anchor the molecules to cancer cell membranes while the synchronized vibrations relentlessly dismantle them. Notably, this biomechanical technique presents a formidable challenge for cancer cells to develop resistance against.
While this research is in its early stages, the initial findings offer promising avenues for future cancer treatments. The team aims to explore other types of molecules with similar properties for potential therapeutic applications. “This study is about a different way to treat cancer using mechanical forces at the molecular scale,” added Ayala-Orozco.
by: Abdul-Rahman Oladimeji Bello
published on Interesting Engineering