Facile heat reflux synthesis of blue luminescent carbon dots as optical nanoprobes for cellular imagingElectronic supplementary information (ESI) available: Fluorescence spectra, calculation data of quantum yield. See DOI: 10.1039/c6nj02702d

We rapidly prepared photoluminescent carbon dots (CDs) using a single-step heat reflux method with l -glutamic acid as the carbon source. The as-prepared CDs possessed a quasispherical morphology with an average diameter of approximately 5.42 nm and a quantum yield of approximately 6.3%. The CDs cle...

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Main Authors: Zhang, Xianfeng, Lu, Jingbo, Li, Xianqing, Chai, Liucheng, Jiao, Yuhong
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Lu, Jingbo
Li, Xianqing
Chai, Liucheng
Jiao, Yuhong
description We rapidly prepared photoluminescent carbon dots (CDs) using a single-step heat reflux method with l -glutamic acid as the carbon source. The as-prepared CDs possessed a quasispherical morphology with an average diameter of approximately 5.42 nm and a quantum yield of approximately 6.3%. The CDs clearly exhibited excitation-dependent photoluminescence and good temperature-sensitive photoluminescence, as well as excellent water-solubility. Moreover, the luminescent CDs could not only be efficiently taken up by CT26.WT and CAL-27 cells but also exhibited low cytotoxicity and favourable biocompatibility, making them promising candidates for cellular imaging applications, among others. Carbon dots with good temperature-sensitive photoluminescence are facilely synthesized and their luminescence properties and cellular imaging applications are investigated.
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See DOI: 10.1039/c6nj02702d</title><source>Royal Society of Chemistry Journals</source><creator>Zhang, Xianfeng ; Lu, Jingbo ; Li, Xianqing ; Chai, Liucheng ; Jiao, Yuhong</creator><creatorcontrib>Zhang, Xianfeng ; Lu, Jingbo ; Li, Xianqing ; Chai, Liucheng ; Jiao, Yuhong</creatorcontrib><description>We rapidly prepared photoluminescent carbon dots (CDs) using a single-step heat reflux method with l -glutamic acid as the carbon source. The as-prepared CDs possessed a quasispherical morphology with an average diameter of approximately 5.42 nm and a quantum yield of approximately 6.3%. The CDs clearly exhibited excitation-dependent photoluminescence and good temperature-sensitive photoluminescence, as well as excellent water-solubility. Moreover, the luminescent CDs could not only be efficiently taken up by CT26.WT and CAL-27 cells but also exhibited low cytotoxicity and favourable biocompatibility, making them promising candidates for cellular imaging applications, among others. 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Carbon dots with good temperature-sensitive photoluminescence are facilely synthesized and their luminescence properties and cellular imaging applications are investigated.</abstract><doi>10.1039/c6nj02702d</doi><tpages>7</tpages></addata></record>
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title Facile heat reflux synthesis of blue luminescent carbon dots as optical nanoprobes for cellular imagingElectronic supplementary information (ESI) available: Fluorescence spectra, calculation data of quantum yield. See DOI: 10.1039/c6nj02702d
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