Technology News ,World :- Scientists have unveiled a groundbreaking method to combat cancer by harnessing the power of molecular jackhammers. Researchers from Rice University, Texas A&M University, and the University of Texas discovered that stimulating aminocyanine molecules with near-infrared light causes them to vibrate in unison, effectively rupturing the membranes of cancer cells.
Aminocyanine molecules, commonly employed in bioimaging as synthetic dyes, have proven stability in water and are adept at binding to the exteriors of cells. In a significant advancement over previous cancer-killing molecular machines, such as Feringa-type motors, these molecular jackhammers exhibit mechanical motion over one million times faster and can be activated with near-infrared light instead of visible light, according to chemist James Tour from Rice University.
The utilization of near-infrared light is pivotal as it facilitates deeper penetration into the body, potentially allowing the treatment of cancer in bones and organs without resorting to surgery. In experiments on cultured cancer cells, the molecular jackhammer approach achieved an impressive 99 percent success rate in destroying the cells. Furthermore, tests on mice with melanoma tumors resulted in half of the animals becoming cancer-free.
The unique structure and chemical properties of aminocyanine molecules enable them to synchronize with the right stimulus, such as near-infrared light. When set in motion, the electrons within these molecules generate plasmons—collectively vibrating entities driving movement across the entire molecule.
Chemist Ciceron Ayala-Orozco from Rice University emphasizes the significance of this discovery, highlighting that its the first instance of a molecular plasmon being utilized to excite the entire molecule and produce mechanical action to dismantle cancer cell membranes.
The plasmons, equipped with an arm on one side, establish connections between the molecules and cancer cell membranes. The ensuing vibrations then contribute to breaking apart the membranes. While the research is still in its early stages, these initial findings hold great promise.
The simplicity of this biomechanical technique also makes it challenging for cancer cells to develop effective defenses. Moving forward, researchers are exploring other types of molecules that can be employed in a similar fashion. In essence, this study represents a groundbreaking approach to cancer treatment, employing mechanical forces at the molecular scale to combat the disease.
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