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Toward Strong Near-Infrared Absorption/Emission from Carbon Dots in Aqueous Media through Solvothermal Fusion of Large Conjugated Perylene Derivatives with Post-Surface Engineering
Liu, Yupeng1; Lei, Josh Haipeng2,3; Wang, Gang1; Zhang, Zhiming2,3; Wu, Jun1; Zhang, Bohan1; Zhang, Huiqi1; Liu, Enshan1; Wang, Liming1; Liu, Tzu Ming2,3; Xing, Guichuan1; Ouyang, Defang4; Deng, Chu Xia2,3; Tang, Zikang1,3; Qu, Songnan1,3
2022-06-02
Source PublicationAdvanced Science
ISSN2198-3844
Volume9Issue:23
Other Abstract

Carbon dots (CDs) have attracted significant interest as one of the most emerging photoluminescence (PL) nanomaterials. However, the realization of CDs with dominant near-infrared (NIR) absorption/emission peaks in aqueous solution remains a great challenge. Herein, CDs with both main NIR absorption bands at 720 nm and NIR emission bands at 745 nm in an aqueous solution are fabricated for the first time by fusing large conjugated perylene derivatives under solvothermal treatment. With post-surface engineering, the polyethyleneimine modified CDs (PEI-CDs) exhibit enhanced PL quantum yields (PLQY) up to 8.3% and 18.8% in bovine serum albumin aqueous and DMF solutions, which is the highest PLQY of CDs in NIR region under NIR excitation. Density functional theory calculations support the strategy of fusing large conjugated perylene derivatives to achieve NIR emissions from CDs. Compared to the commercial NIR dye Indocyanine green, PEI-CDs exhibit excellent photostability and much lower cost. Furthermore, the obtained PEI-CDs illustrate the advantages of remarkable two-photon NIR angiography and in vivo NIR fluorescence bioimaging. This work demonstrates a promising strategy of fusing large conjugated molecules for preparing CDs with strong NIR absorption/emission to promote their bioimaging applications.

KeywordCarbon Dots Near-infrared Absorption Near-infrared Bioimaging Near-infrared Emission Perylene Derivatives Two-photon Fluorescence
DOI10.1002/advs.202202283
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Multidisciplinary;nanoScience & Nanotechnology;materials Science, Multidisciplinary
WOS IDWOS:000804578400001
Scopus ID2-s2.0-85131046602
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Health Sciences
Institute of Chinese Medical Sciences
INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorQu, Songnan
Affiliation1.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering (IAPME), University of Macau, Taipa, SAR, 999078, Macao
2.Cancer Center, Faculty of Health Sciences, University of Macau, Taipa, SAR, 999078, Macao
3.MOE Frontier Science Centre for Precision Oncology, University of Macau, Taipa, SAR, 999078, Macao
4.State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Taipa, SAR, 999078, Macao
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING;  University of Macau
Recommended Citation
GB/T 7714
Liu, Yupeng,Lei, Josh Haipeng,Wang, Gang,et al. Toward Strong Near-Infrared Absorption/Emission from Carbon Dots in Aqueous Media through Solvothermal Fusion of Large Conjugated Perylene Derivatives with Post-Surface Engineering[J]. Advanced Science,2022,9(23).
APA Liu, Yupeng,Lei, Josh Haipeng,Wang, Gang,Zhang, Zhiming,Wu, Jun,Zhang, Bohan,Zhang, Huiqi,Liu, Enshan,Wang, Liming,Liu, Tzu Ming,Xing, Guichuan,Ouyang, Defang,Deng, Chu Xia,Tang, Zikang,&Qu, Songnan.(2022).Toward Strong Near-Infrared Absorption/Emission from Carbon Dots in Aqueous Media through Solvothermal Fusion of Large Conjugated Perylene Derivatives with Post-Surface Engineering.Advanced Science,9(23).
MLA Liu, Yupeng,et al."Toward Strong Near-Infrared Absorption/Emission from Carbon Dots in Aqueous Media through Solvothermal Fusion of Large Conjugated Perylene Derivatives with Post-Surface Engineering".Advanced Science 9.23(2022).
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