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. 2022 Aug 13;16:100399. doi: 10.1016/j.mtbio.2022.100399

Fig. 1.

Fig. 1

Schematic illustration of a) TT3-oCB NPs and b) DPBT NPs. c) Absorption spectrum and d) Photoluminescence (PL) spectrum of TT3-oCB NPs. e) Absorption spectrum and f) PL spectrum of DPBT NPs. Comparison of TT3-oCB NPs, DPBT NPs, and the AIE NPs cocktail g) under bright field, h) under the excitation of an 808 ​nm laser and i) under the excitation of an ultraviolet lamp. NIR-II fluorescence images of j) axillary lymph node, n) popliteal lymph node and r) inguinal lymph node of the nude mice treated with the AIE NPs cocktail (scale bar:1 ​cm). k, o, s) Cross-sectional fluorescence intensity profiles (black) and the Gaussian fits along the yellow lines in (j, n, r). l, p, t) the pictures of the areas around the lymph nodes under bright field (scale bar:1 ​cm). Visible fluorescence signals of the m) axillary lymph node, q) popliteal lymph node and u) inguinal lymph node under the ultraviolet lamp (scale bar:1 ​cm).