Synthesis and unique photoluminescence properties of nitrogen-rich quantum dots and their applications.

Nitrogen-rich quantum dots (N-dots) were serendipitously synthesized in methanol or aqueous solution at a reaction temperature as low as 50 °C. These N-dots have a small size (less than 10 nm) and contain a high percentage of the element nitrogen, and are thus a new member of quantum-dot family. These N-dots show unique and distinct photoluminescence properties with an increasing percentage of nitrogen compared to the neighboring carbon dots. The photoluminescence behavior was adjusted from blue to green simply through variation of the reaction temperature. Furthermore, the detailed mechanism of N-dot formation was also proposed with the trapped intermediate. These N-dots have also shown promising applications as fluorescent ink and biocompatible staining in C. elegans.

[1]  Fan Yang,et al.  Carbon-based quantum dots for fluorescence imaging of cells and tissues , 2014 .

[2]  Fang Zeng,et al.  A low cytotoxic and ratiometric fluorescent nanosensor based on carbon-dots for intracellular pH sensing and mapping , 2013, Nanotechnology.

[3]  Li Zhou,et al.  Amphibious fluorescent carbon dots: one-step green synthesis and application for light-emitting polymer nanocomposites. , 2013, Chemical communications.

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

[5]  C. M. Li,et al.  Carbon-based dots co-doped with nitrogen and sulfur for high quantum yield and excitation-independent emission. , 2013, Angewandte Chemie.

[6]  T. Torchynska,et al.  Si quantum dot structures and their applications , 2013 .

[7]  Niranjan Karak,et al.  A green and facile approach for the synthesis of water soluble fluorescent carbon dots from banana juice , 2013 .

[8]  Sheng Han,et al.  Bottom-up fabrication of photoluminescent carbon dots with uniform morphology via a soft-hard template approach. , 2013, Chemical communications.

[9]  Bai Yang,et al.  Highly photoluminescent carbon dots for multicolor patterning, sensors, and bioimaging. , 2013, Angewandte Chemie.

[10]  Nikhil R. Jana,et al.  Carbon Nanoparticle-based Fluorescent Bioimaging Probes , 2013, Scientific Reports.

[11]  Daniel T Chiu,et al.  Highly fluorescent semiconducting polymer dots for biology and medicine. , 2013, Angewandte Chemie.

[12]  Changfeng Wu,et al.  Stark fluoreszierende halbleitende Polymerpunkte für Biologie und Medizin , 2013 .

[13]  Xiwen He,et al.  Nitrogen-doped carbon dots: a facile and general preparation method, photoluminescence investigation, and imaging applications. , 2013, Chemistry.

[14]  Fang Zeng,et al.  Carbon-dot-based ratiometric fluorescent sensor for detecting hydrogen sulfide in aqueous media and inside live cells. , 2013, Chemical communications.

[15]  Xian Wang,et al.  Excited State Relaxation and Stabilization of Hydrogen Terminated Silicon Quantum Dots , 2013, Journal of Cluster Science.

[16]  Li-Ping Lin,et al.  Zr(H2O)2EDTA modulated luminescent carbon dots as fluorescent probes for fluoride detection. , 2013, The Analyst.

[17]  Lufeng Yang,et al.  One-step preparation of nitrogen-doped graphene quantum dots from oxidized debris of graphene oxide. , 2013, Journal of materials chemistry. B.

[18]  Li-Huei Lin,et al.  Oxypropylene chain length affects the physicochemical properties of ortho ester-based gemini surfactants , 2013 .

[19]  Xingyuan Liu,et al.  A biocompatible fluorescent ink based on water-soluble luminescent carbon nanodots. , 2012, Angewandte Chemie.

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

[21]  Sudip Barman,et al.  Facile bulk production of highly blue fluorescent graphitic carbon nitride quantum dots and their application as highly selective and sensitive sensors for the detection of mercuric and iodide ions in aqueous media , 2012 .

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

[23]  T. K. Maiti,et al.  Simple one-step synthesis of highly luminescent carbon dots from orange juice: application as excellent bio-imaging agents. , 2012, Chemical communications.

[24]  Wei Chen,et al.  One-pot synthesis of N-doped carbon dots with tunable luminescence properties , 2012 .

[25]  Xiaoling Yang,et al.  Graphene quantum dots: emergent nanolights for bioimaging, sensors, catalysis and photovoltaic devices. , 2012, Chemical communications.

[26]  Lei Guo,et al.  Cutting sp2clusters in graphene sheets into colloidal graphene quantum dots with strong green fluorescence , 2012 .

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

[28]  H. Ming,et al.  Fe2O3/carbon quantum dots complex photocatalysts and their enhanced photocatalytic activity under visible light. , 2011, Dalton transactions.

[29]  M. Antonietti,et al.  Boron carbon nitride nanostructures from salt melts: tunable water-soluble phosphors. , 2011, Journal of the American Chemical Society.

[30]  Hui Huang,et al.  One-step ultrasonic synthesis of water-soluble carbon nanoparticles with excellent photoluminescent properties , 2011 .

[31]  Chang Ming Li,et al.  Layered graphene/quantum dots for photovoltaic devices. , 2010, Angewandte Chemie.

[32]  P. Holloway,et al.  Quantum Dots and Their Multimodal Applications: A Review , 2010, Materials.

[33]  J. Soler,et al.  Azafullerene-like nanosized clusters. , 2009, ACS nano.

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

[35]  Ya‐Ping Sun,et al.  Carbon dots for multiphoton bioimaging. , 2007, Journal of the American Chemical Society.

[36]  Ya‐Ping Sun,et al.  Quantum-sized carbon dots for bright and colorful photoluminescence. , 2006, Journal of the American Chemical Society.

[37]  S. Gambhir,et al.  Quantum Dots for Live Cells, in Vivo Imaging, and Diagnostics , 2005, Science.

[38]  Latha A. Gearheart,et al.  Electrophoretic analysis and purification of fluorescent single-walled carbon nanotube fragments. , 2004, Journal of the American Chemical Society.

[39]  P. F. Szajowski,et al.  Quantum Confinement in Size-Selected, Surface-Oxidized Silicon Nanocrystals , 1993, Science.

[40]  P. Scheiner.  Evidence against aziridine intermediates in the reaction of azides with dihydropyran , 1967 .

[41]  K RawatP,et al.  エンドタキシャルナノ構造を持つPbSe 0.5 Te 0.5 :x(PbI 2 )の熱電特性:有望なn型熱電材料 , 2013 .

[42]  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 .

[43]  Yury Gogotsi,et al.  The properties and applications of nanodiamonds. , 2011, Nature nanotechnology.