Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Nov 15;9:769655. doi: 10.3389/fchem.2021.769655

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2021 Wang, He, Du, Xie, Zhou, Huang and Fan.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

(A) Schematic illustration of preparation of PSQPNs-DBCO. (B) NIR-II fluorescence imaging of blood vessels by PSQPNs-DBCO and TT-3T CPs. (C) Signal-to-background ratio (SBR) of tumor tissue of mice with different treatments. (D) Chemical structure of BDT-TTQ. (E) Absorption and emission spectra of BDT-TTQ NPs in water. (F) NIR-II fluorescence imaging of brain and hypogastric region of BDT-TTQ NPs-injected mice. (G) NIR-II fluorescence imaging of tumor after i.v. injection of BDT-TTQ NPs for 12 h. The red circle indicates the location of tumor. Adapted from ref. 16 and 24. Copyright© 2020 Elsevier and 2020 Chinese Chemical Society.