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Journal of Fluorescence

, Volume 27, Issue 1, pp 125–134 | Cite as

Synthesis of Water Dispersible Fluorescent Carbon Nanocrystals from Syzygium cumini Fruits for the Detection of Fe3+ Ion in Water and Biological Samples and Imaging of Fusarium avenaceum Cells

  • Jigna R. Bhamore
  • Sanjay Jha
  • Rakesh Kumar Singhal
  • Suresh Kumar KailasaEmail author
ORIGINAL ARTICLE

Abstract

In this work, water dispersible fluorescent carbon nanocrystals (NCs) were synthesized by a simple, green and low cost hydrothermal method using Syzygium cumini (jamun) as a carbon source at 180 °C for 6 h. The average size of carbon NCs was found to be 2.1 ± 0.5 nm and shown bright blue fluorescence when excited at 365 nm under UV lamp. The carbon NCs were characterized by spectroscopic (UV-visible and fluorescence, Fourier transform infrared and dynamic light scattering) and high resolution transmission electron microscopic techniques. The quantum yield of carbon NCs was found to be ~5.9 % at 438 nm emission wavelength when excited at 360 nm. It was noticed that none of the metal ions quenched the fluorescence intensity of carbon NCs at 438 nm except for Fe3+, indicating the formation of Fe3+ ion-carbon NCs complexes. The linear range was observed in the concentration range of 0.01–100 μM with the corresponding detection limits of 0.001 μM, respectively. Furthermore, the carbon NCs were used as probes for imaging of fungal (Fusarium avenaceum) cells.

Keywords

Fluorescent carbon NCs Fe3+ ion HR-TEM UV-visible Fluorescence spectrometry and cell imaging 

Notes

Acknowledgments

Ms. Jigna Bhamore gratefully acknowledges S. V. National Institute of Technology, Surat, for FIR Ph.D fellowship. Authors thank Department of Science and Technology (Ref. No. SR/FT/CS-54/2010), S. V. National Institute of Technology (Ref. No: Dean(R&C)/1503/2013-2014), Surat and Board of Research in Nuclear Science (Ref. No: 37(2) 14/07/2015/BRNS/10401) for financial support to this work.

Supplementary material

10895_2016_1940_MOESM1_ESM.ppt (306 kb)
ESM 1 (PPT 305 kb)

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Jigna R. Bhamore
    • 1
  • Sanjay Jha
    • 2
  • Rakesh Kumar Singhal
    • 3
  • Suresh Kumar Kailasa
    • 1
    Email author
  1. 1.Department of Applied ChemistryS. V. National Institute of TechnologySuratIndia
  2. 2.Gujarat Agricultural Biotechnology InstituteNavsari Agricultural UniversitySuratIndia
  3. 3.Analytical Chemistry DivisionBhabha Atomic Research CenterMumbaiIndia

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