Carbon-based dot nanoclusters with enhanced roles of defect states in the fluorescence and singlet oxygen generation - Details

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Carbon-based　dot　nanoclusters　(CDCs)　are　reported　for　the　first　time.　The　morphologies　of　the　obtained　CDCs　are　characterized　using　transmission　electron　microscopy　and　atomic　force　microscopy.　It　is　found　that　the　CDCs　are　composed　of　dozens　of　carbon-based　dots　(CDs),　which　are　connected　together　through　the　sp3-hybridized　carbon　atoms.　When　compared　with　free　CDs,　the　obtained　CDCs　have　higher　defect　densities.　As　a　result,　the　UV-vis　absorption　edge　of　the　CDCs　is　extended　to　around　700　nm,　and　the　maximum　fluorescence　wavelength　red-shifts　to　570　nm.　Furthermore,　the　CDCs　show　a　high　singlet　oxygen　(1O2)-generation　capability　(quantum　yield　of　about　0.13)　under　visible　light　irradiation.　The　long-wavelength　emission　and　the　excellent　photostability　give　the　obtained　CDCs　great　application　potential　in　cell　imaging,　and　the　wide　UV-vis　absorption　band　and　high　1O2-generation　capability　allow　the　obtained　CDCs　to　work　as　effective　photosensitizers　in　photodynamic　cancer　therapy.　This　journal　is　©　The　Royal　Society　of　Chemistry　and　the　Centre　National　de　la　Recherche　Scientifique.

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[ 1 ] [Hu, R.]MOE, Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
[ 2 ] [Su, J.]MOE, Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
[ 3 ] [Wang, Q.]MOE, Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
[ 4 ] [Chen, M.]MOE, Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
[ 5 ] [Jiao, Y.]MOE, Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
[ 6 ] [Chen, L.]College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
[ 7 ] [Dong, B.]Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, China
[ 8 ] [Fu, F.]MOE, Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
[ 9 ] [Dong, Y.]MOE, Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China

Reprint 's Address：

[Dong, Y.]MOE, Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou UniversityChina

Email：

dongyq@fzu.edu.cn

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New Journal of Chemistry

ISSN： 1144-0546

Year： 2020

Issue： 38

Volume： 44

Page： 16461-16467

3 . 5 9 1

JCR@2020

2 . 7 0 0

JCR@2023

ESI HC Threshold：160

JCR Journal Grade：2

CAS Journal Grade：3

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WoS CC Cited Count：

SCOPUS Cited Count： 8

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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