A design strategy of D-A conjugated polymer for NIR-II fluorescence imaging

2021 ◽  
Author(s):  
Yingbin Su ◽  
Yawei Miao ◽  
Yaowei Zhu ◽  
Wentao Zou ◽  
Bing Yu ◽  
...  

The development of bioimaging technology in recent years shows that the second near-infrared (NIR-II) fluorescence imaging (FI) is gradually replacing the traditional visible light and the first near-infrared (NIR-I) FI....

Small ◽  
2013 ◽  
Vol 9 (18) ◽  
pp. 3092-3092 ◽  
Author(s):  
Dan Ding ◽  
Jie Liu ◽  
Guangxue Feng ◽  
Kai Li ◽  
Yong Hu ◽  
...  

2019 ◽  
Vol 10 (43) ◽  
pp. 5839-5848 ◽  
Author(s):  
Jingwen Cai ◽  
Jianhua Han ◽  
Guojia Ma ◽  
Xing Liu ◽  
Jinyan Wang ◽  
...  

Dimetal-containing dithiolene and Schiff base conjugated polymer coatings are constructed and exhibit excellent stealth abilities in the NIR (near-infrared) and MFIR (mid–far-infrared) range.


2018 ◽  
Vol 1 (9) ◽  
pp. 4801-4808 ◽  
Author(s):  
Charu V. Rohatgi ◽  
Takaaki Harada ◽  
Eleanor F. Need ◽  
Marta Krasowska ◽  
David A. Beattie ◽  
...  

2020 ◽  
Vol 13 (05) ◽  
pp. 2041002 ◽  
Author(s):  
Chuantao Gu ◽  
Chunying Zheng ◽  
Bing Liu ◽  
Tingyu Feng ◽  
Jiping Ma ◽  
...  

Short wave near-infrared (SWIR, 900–1700[Formula: see text]nm) fluorescence imaging has attracted extensive research interest from scientists due to its high imaging quality. However, the variety of SWIR fluorescence imaging agents are quite limited and the corresponding quantum efficiency is relatively low. In this work, a novel conjugated polymer PDTSDTBT was reported, consisting of a donor unit with a tetrahedral Si (sp3) named DTS and an acceptor unit named DTBT with branched side chains. The design approach of endowing the donor–acceptor structure with the branched side chains successfully increase the fluorescence quantum efficiency. The polymer was prepared into nanoparticles by nanoprecipitation. The PDTSDTBT nanoparticles showed an absorption peak of 626[Formula: see text]nm and fluorescence emission peak of 924[Formula: see text]nm. The quantum efficiency of the nanoparticles is 0.53%, which is higher than that of nanotube fluorophores (0.4%). The nanoparticles also demonstrate a photothermal effect, the temperature of nanoparticles solution could reach [Formula: see text]C under excitation by 660[Formula: see text]nm laser. Therefore, the PDTSDTBT nanoparticles is an excellent fluorescent imaging agent with potential photothermal applications.


Nanoscale ◽  
2018 ◽  
Vol 10 (42) ◽  
pp. 19742-19748 ◽  
Author(s):  
Duyang Gao ◽  
Pengfei Zhang ◽  
Yubin Liu ◽  
Zonghai Sheng ◽  
Huajie Chen ◽  
...  

A general method to engineer photoacoustic/fluorescence dual-modal imaging nanoprobes has been proposed based on stable near-infrared conjugated polymer nanoparticles.


2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Guosong Hong ◽  
Yingping Zou ◽  
Alexander L. Antaris ◽  
Shuo Diao ◽  
Di Wu ◽  
...  

2020 ◽  
Vol 4 (8) ◽  
pp. 2357-2369 ◽  
Author(s):  
Panagiota Koralli ◽  
Alkmini D. Nega ◽  
Lida Evmorfia Vagiaki ◽  
Aristea Pavlou ◽  
Michael G. Siskos ◽  
...  

The development of new aqueous conjugated polymer nanoparticles with high photoluminescence quantum yields (PLQYs) at the far red and near infrared (NIR) spectral regions (>650 nm) as alternative polymer probes for fluorescence imaging is reported.


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