Sensitive water concentration mapping in thin fresh tissues using tunable THz-wave parametric oscillator

Sensitive water concentration mapping in thin animal tissue samples has been demonstrated using tunable monochromatic THz-wave parametric source. A novel sample preparation approach is performed to effectively preserve tissue freshness at room temperature. The time course results show the sample characteristic of water content and distribution can be well measured and excellently repeated in 70minutes with a standard deviation of less than 1%. These results suggest the method of water volume concentration and distribution measurement using THz-wave has good stability with proper sample preparation, which has great potential in the fields of medical and biological diagnosis.

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