Header menu link for other important links
X
Highly fluorescent carbon dots from Pseudo-stem of banana plant: Applications as nanosensor and bio-imaging agents
Somasundaram Anbu Anjugam Vandarkuzhali, Velu Jeyalakshmi, Konda Ramasamy Krishnamurthy, Balasubramanian Viswanathan
Published in Elsevier B.V.
2017
Volume: 252
   
Pages: 894 - 900
Abstract
Carbon dots (CDs) with 48% quantum yield (QY) were synthesized by simple hydrothermal treatment using Pseudo-stem of banana plant as carbon source. As synthesized CDs were characterized using UV–vis, fluorescence, dynamic light scattering (DLS), Fourier transform infrared (FT-IR), Raman, X-ray photoelectron spectroscopy (XPS) and High resolution transmission electron microscopic (HRTEM) techniques. A fluorescent nanosensor which exhibits highly specific recognition capability towards Fe3+ over other competing metal ions has been reported. CD exhibits fluorescent “turn-off” sensing nature with high selectivity towards Fe3+ with a detection limit as low as 6.4 nM and “turn-on” property towards S2O32− anion. The biocompatibility of CDs was revealed from the cytotoxicity studies on cancerous cells (HeLa, MCF-7 (Michigan Cancer Foundation-7)) and was employed as fluorescent probes for multi-coloured (blue, green and red) imaging of HeLa and MCF-7 cells. Due to the bright fluorescence, water solubility, high photo-stability, low toxicity, cell-membrane permeability and good biocompatibility, as-prepared carbon nanodots are demonstrated to be excellent probe as bio-imaging agent. © 2017 Elsevier B.V.
About the journal
JournalData powered by TypesetSensors and Actuators, B: Chemical
PublisherData powered by TypesetElsevier B.V.
ISSN09254005
Open AccessNo
Concepts (18)
  •  related image
    Biocompatibility
  •  related image
    Cytotoxicity
  •  related image
    Dynamic light scattering
  •  related image
    FRUITS
  •  related image
    Metal ions
  •  related image
    Metals
  •  related image
    Nanosensors
  •  related image
    Probes
  •  related image
    X ray photoelectron spectroscopy
  •  related image
    BANANA PLANT
  •  related image
    Cell membrane permeability
  •  related image
    Fluorescence imaging
  •  related image
    Fluorescent probes
  •  related image
    Fourier transform infrared
  •  related image
    HYDROTHERMAL TREATMENTS
  •  related image
    Specific recognition
  •  related image
    Transmission electron
  •  related image
    Fluorescence