Scientists Unveil Revolutionary Cell Levitation Technique
In a groundbreaking development, researchers have unveiled a novel method to levitate cells, marking a significant leap forward in medical research. This innovative technique, dubbed the Electro-LEV system, harnesses the power of electromagnets to manipulate cell movement, offering a non-invasive and precise approach to studying and treating diseases.
The Electro-LEV system, developed by Assistant Professor Gozde Durmus and her team, employs electromagnetic fields to levitate cells, enabling effective sorting and analysis. By adjusting the electric current, the system can precisely control the vertical movement of cells, mirroring the functionality of magnetic levitation trains. This breakthrough has the potential to revolutionize disease research and treatment, particularly in the fields of cancer and antibiotic-resistant infections.
Durmus's journey into cellular levitation began with her work on nanoparticles and antibiotic-resistant microorganisms. She noticed that certain bacteria responded differently to magnetic fields, prompting her to explore the behavior of human cells. Through experiments, she confirmed that a cell's density influences its reaction to magnetic fields, allowing for the differentiation and sorting of cell types.
The core of the Electro-LEV system is a minuscule tube, approximately one millimeter in diameter, positioned between two permanent magnets and electromagnetic coils. These coils are the key to cell manipulation. By controlling the current flowing through them, scientists can adjust the electromagnetic field's strength, exerting a repulsive force on non-magnetic cells. This enables precise control over cell movement, making the sorting process efficient and gentle.
Victor Garcia, an electrical engineer involved in the system's development, explains that the current injected into the coil can be manipulated, allowing for increased magnetic field strength and force application. This capability enables the system to levitate cells to different heights, facilitating their separation and analysis.
Suraj Pravagada, a postdoctoral research scientist in the Durmus lab, highlights the system's advancement over its 2015 predecessor, which lacked electromagnets. The new system transforms levitation from a passive observation tool into an active manipulation platform, making cell separation a programmable process.
The Electro-LEV system's gentle approach is a significant advantage in a field often reliant on damaging sorting techniques. Sena Yaman, a postdoctoral researcher, emphasizes that this method can produce sufficient material for diagnosis, drug testing, or culture, enabling personalized treatment. Moreover, it facilitates the detection of aggressive circulating tumor cells (CTCs), which are crucial in understanding cancer metastasis.
With the ability to pinpoint CTCs due to their varying levitation speeds, this technology holds promise for developing blood-based screening tools to monitor cancer patients for metastatic spread. It may also enable the removal of CTCs from blood before they initiate new tumors, marking a significant step towards more effective cancer management.
