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Nano-diamond sensor in the field of cell applications

    Impurities in diamond not only color, but also through the impurities to make diamond into the magnetic field and temperature field of precision sensors. When the impurities meet the nitrogen atoms, the diamond crystal structure will change, a known nitrogen - vacancy center will be formed. The electron and quantum spin states in the nitrogen-vacancy centers exhibit surprising agreement, and the quantum spin states can be precisely controlled. If the internal electronic continuity of nano-diamond can be maintained for a long enough time, so that we can not only realize the diamond as a quantum computer, one of the spin carrier material, and diamond will reveal the nerve cell secret information perfect device.

    The new nitrogen-vacancy center can store photons and carry quantum files.The invention of new technology makes nanodiamond structure to form ring structure quantum by self-assembling into the center of nitrogen-vacancy, called SP1 protein. But the problem is in microsecond units when the calculation of nano-diamond spin coherence is weak. Now researchers at the University of Cambridge have found a way to protect the nitrogen-void center rotation in fine synthetic diamond, and the measurement of rotational coherence also has a high resolution.

    In addition to the methods developed by the University of Cambridge, there is no other way to make only a few dozen nanometers of atomic diamond sensors accurately through, which is currently facing technical challenges. But perhaps we can build a sophisticated query device, if there are many such sensors, but can not find what you need, such as extracting a human organ or critical organs such as the moment, in the hundreds of sub-cells Organs in the search becomes much easier.

    Because the center of the nitrogen-vacancy emits fluorescence as the temperature changes, nanotubes or very small (about two thousandths of a degree Kelvin) temperature changes are measured, even in very small spaces (200 nanometers) And time-domain measurements are possible. Researchers mainly use the scanning confocal microscope to measure the emitted fluorescence. The microscope can move all light except for light from a single plane, because the nitrogen-vacancy centers are sensitive to magnetic fields and electrons, and the researchers calculated them as a DC magnetometer. Therefore, in essence, the researchers can demonstrate the optical detection of nuclear magnetic resonance.

    We all know that the active metabolic cells within the temperature environment is not the same, such as mitochondria and centrioles such cell activity and local cells are closely related to hot spots, and even neurons have significant thermal profile peak, the peak Heat is first absorbed by the cell and then released.

    The use of nano-diamond problem is that once placed in the cell, it is necessary to remain intact. Although other methods have been used to solve the difficulties of temperature measurement, such as genetic code thermal sensor. But if these new nano-diamonds can be attached to proteins, like the SP1 mentioned above, nanodiamonds are the perfect tool for observing and understanding the secrets of the cell.


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