Researchers have developed a tiny thermometer that can measure the temperature inside living cells, even down to their nucleus. This breakthrough could unlock new ways for scientists to study cell metabolism and other vital processes. The research was recently published in Science Advances.
Previously, the most advanced cell thermometers used nanodiamonds with defects known as nitrogen-vacancy centers. However, these diamonds varied slightly, leading to inconsistent readings. The new approach uses molecular quantum nanosensors, which are created by embedding pentacene molecules into a crystal. This crystal is then broken down into particles as small as 200 to 500 nanometers—much smaller than a human red blood cell.
These sensors work on quantum principles. When a green laser shines on them, they glow red. If microwaves are applied at specific frequencies, they cause the glow to dim. Interestingly, the extent of dimming is influenced by the surrounding temperature. By calculating this relationship, researchers can determine the temperature inside the cell.
To introduce these sensors into cancer cells, scientists either soaked the cells in a solution containing the sensors or injected them directly into the nucleus. They then used the laser-and-microwave system to monitor changes in glow intensity to gauge cellular temperatures.
This research is noteworthy because it highlights how quantum technology can enhance biological studies. As expert Dr. Sarah Cohen, a cell biologist, stated, “Understanding temperature changes at a cellular level can provide crucial insights into metabolic disorders and cancer progression.”
Moreover, a recent survey from the National Institute of Health revealed that approximately 30% of cancer treatments could greatly benefit from improved temperature measurement techniques like these.
This innovative technology opens doors for a deeper understanding of life at the most microscopic level. By focusing on cellular temperature, scientists may find new ways to tackle diseases and improve Health outcomes.
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Nanoscience and technology,Quantum physics,Science,Humanities and Social Sciences,multidisciplinary
