Open AccessSingle Near‐Infrared Emissive Polymer Nanoparticles as Versatile Phototheranostics
Author(s) -
Guo Liang,
Niu Guangle,
Zheng Xiuli,
Ge Jiechao,
Liu Weimin,
Jia Qingyan,
Zhang Panpan,
Zhang Hongyan,
Wang Pengfei
Publication year - 2017
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201700085
Subject(s) - photothermal therapy , singlet oxygen , materials science , nanoparticle , polymer , quantum yield , fluorescence , photoacoustic imaging in biomedicine , nanotechnology , quantum dot , nanomedicine , infrared , photochemistry , chemistry , oxygen , optics , organic chemistry , physics , composite material
Attaining consistently high performance of diagnostic and therapeutic functions in one single nanoplatform is of great significance for nanomedicine. This study demonstrates the use of donor–acceptor (D–A) structured polymer (TBT) to develop a smart “all‐five‐in‐one” theranostic that conveniently integrates fluorescence/photoacoustic/thermal imaging and photodynamic/photothermal therapy into single nanoparticle. The prepared nanoparticles (TBTPNPs) exhibit near‐infrared emission, high water solubility, excellent light resistance, good pH stability, and negligible toxicity. Additionally, the TBTPNPs exhibit an excellent singlet oxygen ( 1 O 2 ) quantum yield (40%) and high photothermal conversion efficiency (37.1%) under single‐laser irradiation (635 nm). Apart from their two phototherapeutic modalities, fluorescence, photoacoustic signals, and thermal imaging in vivo can be simultaneously achieved because of their enhanced permeability and retention effects. This work demonstrates that the prepared TBTPNPs are “all‐five‐in‐one” phototheranostic agents that can exhibit properties to satisfy the “one‐fits‐all” requirement for future phototheranostic applications. Thus, the prepared TBTPNPs can provide fundamental insights into the development of PNP‐based nanoagents for cancer therapy.