HBA ASF of ICG and its application in thermal sensing imaging (IMAGE)
Caption
a, The molecular structure of ICG. b, Schematic illustration of energy level transition in HBA ASF. The thermal activation (red arrow) acts on the molecule in the ground state with lower energy at first and raises the molecule to a higher vibrational level of the ground state, then the molecule absorbs a long-wavelength photon (pink arrow) to reach the excited state, and finally emits a shorter-wavelength photon (orange arrow). c, Temperature dependence of ICG’s ASF spectra (800 nm – 900 nm) excited by a 915 nm CW laser. d, Fluorescence images of a tumor mouse reflecting the enhancement of ASF intensity of ICG in the breast tumor as the temperature rises.
Credit
by Jing Zhou, Xiaoxiao Fan, Di Wu, Jie Liu, Yuhuang Zhang, Zikang Ye, Dingwei Xue, Mubin He, Liang Zhu, Zhe Feng, Andrey N. Kuzmin, Wen Liu, Paras N. Prasad, Jun Qian
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License
CC BY