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- W2945794993 abstract "It is highly desired that synthesis of photothermal agents with near-infrared (NIR) absorption, excellent photostability, and high photothermal conversion efficiency are needed for potential applications. Three (D-A) conjugated polymers (PBABDF-BDTT, PBABDF-BT, and PBABDF-TVT) based on aza-heterocycle, bis(2-oxo-7-azaindolin-3-ylidene)benzodifurandione (BABDF) as the strong acceptor, and benzodithiophene-thiophene (BDTT), bithiophene (BT), and thiophene-vinylene-thiophene (TVT) as the donor were designed and synthesized. The conjugated polymers showed significant absorption in the NIR region and a maximum absorption peak at 808 nm by adjusting the donor and acceptor units. Their photothermal properties were also investigated by using poly(ethylene glycol)-block-poly(hexyl ethylene phosphate) (mPEG-b-PHEP) to stabilize the supramolecular aggregations of conjugated polymers. Photoexcited conjugated polymer (PBABDF-TVT) nanoparticles underwent nonradiative decay when subjected to single-wavelength NIR light irradiation, leading to an excellent photothermal conversion efficiency, of 40.7%. This study provides a method to introduce strong acceptor units to design conjugated polymers with high extinction coefficients, excellent photothermal conversion efficiency, good biocompatibility, and high stability." @default.
- W2945794993 created "2019-05-29" @default.
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- W2945794993 date "2019-05-21" @default.
- W2945794993 modified "2023-10-16" @default.
- W2945794993 title "Aza-Based Donor-Acceptor Conjugated Polymer Nanoparticles for Near-Infrared Modulated Photothermal Conversion" @default.
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- W2945794993 doi "https://doi.org/10.3389/fchem.2019.00359" @default.
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