Fig. 2From: Multi-omics analyses revealed key factors involved in fluorescent carbon-dots-regulated secondary metabolism in Tetrastigma hemsleyanumA Uv–vis absorption of the NIR-CDs (100 µg/mL), inset: digital photograph of the NIR-CDs solution under daylight. B Fluorescence emission spectra of the NIR-CDs (20 µg/mL) under different excitation wavelengths, inset: digital photograph of the NIR-CDs solution under an excitation of laser pointer (405 nm)Back to article page