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Title: Enhancing both biodegradability and efficacy of semiconducting polymer nanoparticles for photoacoustic imaging and photothermal therapy
Authors: Lyu, Yan
Zeng, Jianfeng
Jiang, Yuyan
Zhen, Xu
Wang, Ting
Qiu, Shanshan
Lou, Xin
Gao, Mingyuan
Pu, Kanyi
Keywords: DRNTU::Engineering::Chemical engineering
Photoacoustic Imaging
Photothermal Therapy
Issue Date: 2018
Source: Lyu, Y., Zeng, J., Jiang, Y., Zhen, X., Wang, T., Qiu, S., . . . Pu, K. (2018). Enhancing both biodegradability and efficacy of semiconducting polymer nanoparticles for photoacoustic imaging and photothermal therapy. ACS Nano, 12(2), 1801-1810. doi:10.1021/acsnano.7b08616
Series/Report no.: ACS Nano
Abstract: Theranostic nanoagents are promising for precision medicine. However, biodegradable nanoagents with the ability for photoacoustic (PA) imaging guided photothermal therapy (PTT) are rare. We herein report the development of biodegradable semiconducting polymer nanoparticles (SPNs) with enhanced PA and PTT efficacy for cancer therapy. The design capitalizes on the enzymatically oxidizable nature of vinylene bonds in conjunction with polymer chemistry to synthesize a biodegradable semiconducting polymer (DPPV) and transform it into water-soluble nanoparticles (SPNV). As compared with its counterpart SPN (SPNT), the presence of vinylene bonds within the polymer backbone also endows SPNV with a significantly enhanced mass absorption coefficient (1.3-fold) and photothermal conversion efficacy (2.4-fold). As such, SPNV provides the PA signals and the photothermal maximum temperature higher than SPNT, allowing detection and photothermal ablation of tumors in living mice in a more sensitive and effective way. Our study thus reveals a general molecular design to enhance the biodegradability of optically active polymer nanoparticles while dramatically elevating their imaging and therapeutic capabilities.
ISSN: 1936-0851
DOI: 10.1021/acsnano.7b08616
Schools: School of Chemical and Biomedical Engineering 
Rights: © 2018 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Nano, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

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