Extended Data Fig. 7: Whole body blood vessel imaging of mouse in Tm-, Er- and Ho-Ch. | Nature Nanotechnology

Extended Data Fig. 7: Whole body blood vessel imaging of mouse in Tm-, Er- and Ho-Ch.

From: Fluorescence-amplified nanocrystals in the second near-infrared window for in vivo real-time dynamic multiplexed imaging

Extended Data Fig. 7

a,c, NIR-II images of mouse blood vessels in (a) supine and (c) prone posistion with intravenous injection of aqueous α-TmNPs, α-ErNPs and α-HoNPs, respectively. b, d, Correponding signal-to-background ratios (SBRs) of mouse blood vessels in (b) belly and (d) prone posistion by plotting the cross-sectional intensity profiles as shown in the dased line in a and c. Scale bar, 1 cm. Exposure time: 300 ms. Whole-body blood imaging in NIR-IIb window presents SBRs of 3.0–12.5 (Tm-Ch and Er-Ch), which were ~1.0–4.3 fold higher over that in short wavelength NIR region (2.9–4.3) (Ho-Ch).

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