Through the use of an optical fiber probe, researchers in Australia have developed a more precise technique to distinguish breast cancer tissue from normal tissue. This will potentially give surgeons the upper hand when removing breast cancer and prevent follow-up surgeries. The optical fiber probe works by detecting different pH levels in the two types of tissue. It uses the principle that cancer tissue has a more acidic environment than normal cells. The pH indicator embedded in the tip of the optical probe emits a different color of light depending on the acidity. A miniature spectrometer on the other end of the probe analyses the light and the pH. If the readout shows the tissues are cancerous, they can immediately be removed. This technique is currently needed for 15 to 20 percent of breast cancer surgery patients where all the cancer is not removed. Read more about this news or go back to the original post here.

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