Nitrogen-doped, carbon-rich, highly photoluminescent carbon dots from ammonium citrate.

The synthesis of water-soluble nitrogen-doped carbon dots has received great attention, due to their wide applications in oxygen reduction reaction, cell imaging, sensors, and drug delivery. Herein, nitrogen-doped, carbon-rich, highly photoluminescent carbon dots have been synthesized for the first time from ammonium citrate under hydrothermal conditions. The obtained nitrogen-doped carbon dots possess bright blue luminescence, short fluorescence lifetime, pH-sensitivity and excellent stability at a high salt concentration. They have potential to be used for pH sensors, cell imaging, solar cells, and photocatalysis.

[1]  Yan-Kai Tzeng,et al.  Highly Fluorescent Nanodiamonds Protein‐Functionalized for Cell Labeling and Targeting , 2013 .

[2]  Jinlong Yang,et al.  Modulation and effects of surface groups on photoluminescence and photocatalytic activity of carbon dots. , 2013, Nanoscale.

[3]  Wangjing Ma,et al.  Easy synthesis of highly fluorescent carbon quantum dots from gelatin and their luminescent properties and applications , 2013 .

[4]  Xiaogang Qu,et al.  Carbon dots prepared by hydrothermal treatment of dopamine as an effective fluorescent sensing platform for the label-free detection of iron(III) ions and dopamine. , 2013, Chemistry.

[5]  Ya‐Ping Sun,et al.  Carbon "quantum" dots for optical bioimaging. , 2013, Journal of materials chemistry. B.

[6]  Xingyu Jiang,et al.  Hydrothermal synthesis of highly fluorescent carbon nanoparticles from sodium citrate and their use for the detection of mercury ions , 2013 .

[7]  Zhenhui Kang,et al.  Carbon nanodots: synthesis, properties and applications , 2012 .

[8]  N. Thiex,et al.  Determination of direct available phosphate in fertilizers by a discrete analyzer: single-laboratory validation. , 2012, Journal of AOAC International.

[9]  H. Cui,et al.  Amino acids as the source for producing carbon nanodots: microwave assisted one-step synthesis, intrinsic photoluminescence property and intense chemiluminescence enhancement. , 2012, Chemical communications.

[10]  Jing Li,et al.  One-pot green synthesis of optically pH-sensitive carbon dots with upconversion luminescence. , 2012, Nanoscale.

[11]  Zhuang Liu,et al.  Carrier-free, water dispersible and highly luminescent dye nanoparticles for targeted cell imaging. , 2012, Nanoscale.

[12]  Hui Ma,et al.  A general route to efficient functionalization of silicon quantum dots for high-performance fluorescent probes. , 2012, Small.

[13]  Robin H. A. Ras,et al.  Blue, green and red emissive silver nanoclusters formed in organic solvents. , 2012, Nanoscale.

[14]  Guonan Chen,et al.  Polyamine-functionalized carbon quantum dots for chemical sensing , 2012 .

[15]  Xiaoyun Qin,et al.  Hydrothermal Treatment of Grass: A Low‐Cost, Green Route to Nitrogen‐Doped, Carbon‐Rich, Photoluminescent Polymer Nanodots as an Effective Fluorescent Sensing Platform for Label‐Free Detection of Cu(II) Ions , 2012, Advanced materials.

[16]  Huan-Tsung Chang,et al.  Synthesis of high-quality carbon nanodots from hydrophilic compounds: role of functional groups. , 2012, Chemical communications.

[17]  E. Giannelis,et al.  Formation mechanism of carbogenic nanoparticles with dual photoluminescence emission. , 2012, Journal of the American Chemical Society.

[18]  D. Chiu,et al.  A compact and highly fluorescent orange-emitting polymer dot for specific subcellular imaging. , 2012, Chemical communications.

[19]  Liangti Qu,et al.  Nitrogen-doped graphene quantum dots with oxygen-rich functional groups. , 2012, Journal of the American Chemical Society.

[20]  Amit Jaiswal,et al.  One step synthesis of C-dots by microwave mediated caramelization of poly(ethylene glycol). , 2012, Chemical communications.

[21]  E. Giannelis,et al.  Luminescent Surface Quaternized Carbon Dots , 2012 .

[22]  Jingqi Tian,et al.  A general strategy for the production of photoluminescent carbon nitride dots from organic amines and their application as novel peroxidase-like catalysts for colorimetric detection of H2O2 and glucose , 2012 .

[23]  Xu Li,et al.  Intrinsically fluorescent nitrogen-containing carbon nanoparticles synthesized by a hydrothermal process , 2011 .

[24]  Junfeng Zhai,et al.  Acid-driven, microwave-assisted production of photoluminescent carbon nitride dots from N,N-dimethylformamide , 2011 .

[25]  Lili Wang,et al.  Controlled synthesis and tunable properties of hematite hierarchical structures in a dual-surfactant system , 2011 .

[26]  Chunzhong Li,et al.  Facile preparation and upconversion luminescence of graphene quantum dots. , 2011, Chemical communications.

[27]  Sheila N. Baker,et al.  Luminescent carbon nanodots: emergent nanolights. , 2010, Angewandte Chemie.

[28]  S. Pang,et al.  Synthesis of direct white-light emitting carbogenic quantum dots. , 2010, Chemical communications.

[29]  R. Jin,et al.  Quantum sized, thiolate-protected gold nanoclusters. , 2010, Nanoscale.

[30]  Zhuang Liu,et al.  A route to brightly fluorescent carbon nanotubes for near-infrared imaging in mice. , 2009, Nature nanotechnology.

[31]  Fan Yang,et al.  Microwave synthesis of fluorescent carbon nanoparticles with electrochemiluminescence properties. , 2009, Chemical communications.

[32]  A. Oller,et al.  Temperature effect on nickel release in ammonium citrate. , 2009, Journal of environmental monitoring : JEM.

[33]  K. Loh,et al.  One-pot synthesis of fluorescent carbon nanoribbons, nanoparticles, and graphene by the exfoliation of graphite in ionic liquids. , 2009, ACS nano.

[34]  A. Oller,et al.  Comparison of nickel release in solutions used for the identification of water-soluble nickel exposures and in synthetic lung fluids. , 2009, Journal of environmental monitoring : JEM.

[35]  R. Nitschke,et al.  Quantum dots versus organic dyes as fluorescent labels , 2008, Nature Methods.

[36]  E. Giannelis,et al.  Surface functionalized carbogenic quantum dots. , 2008, Small.

[37]  C. Mao,et al.  Fluorescent carbon nanoparticles derived from candle soot. , 2007, Angewandte Chemie.

[38]  R. Li,et al.  An electrochemical avenue to blue luminescent nanocrystals from multiwalled carbon nanotubes (MWCNTs). , 2007, Journal of the American Chemical Society.

[39]  R. Tsien,et al.  Improved monomeric red, orange and yellow fluorescent proteins derived from Discosoma sp. red fluorescent protein , 2004, Nature Biotechnology.

[40]  J. Lakowicz.  Principles of fluorescence spectroscopy , 1983 .