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

. 2023 Sep 4;21:314. doi: 10.1186/s12951-023-02080-1

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

© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

PMC Copyright notice

Fig. 1 — (a) Schematic illustration of synthesis and preparation of TPSe NPs. (b) TEM image of TPSe NPs. (c) Dynamic light scattering of TPSe NPs. (d) Absorption spectral and NIR-II fluorescence of TPSe NPs (DI water). (e) Changes in photothermal temperature of water and TPSe aqueous solutions of varied concentrations. (f) Infrared images of TPSe NPs solutions in the sixth minute upon laser illumination. (g) Photothermal heating curves of TPSe aqueous solutions (40 µg mL^− 1) upon laser irradiation with various powers of 808 nm light. (h) Temperature profiles of TPSe NPs and ICG irradiated at 1 W cm^− 2 by 808 nm light for 10 laser on/off cycles. (i) Temperature profile of TPSe NPs (40 µg mL^− 1) under 808 nm laser irradiation for 10 min at 1 W cm^− 2 with subsequent natural cooling process after turning off the laser (yellow curve) and the linear time data versus -Ln (θ) obtained from the cooling process (red curve). (j) Stability test of TPSe NPs kept at 4 °C for 28 days