5-Fluorouracil and curcumin co-encapsulated chitosan/reduced graphene oxide nanocomposites against human colon cancer cell lines

  • S. Dhanavel
  • T. A. Revathy
  • T. Sivaranjani
  • K. Sivakumar
  • P. Palani
  • V. Narayanan
  • A. StephenEmail author
Original Paper


Recent attention on chemotherapy against cancer is to explore the effective therapy through targeted delivery of anticancer agents to the tumor site by manipulating pharmacokinetic properties of nanocarriers. 5-Fluorouracil (5-FU) and curcumin (CUR) loaded chitosan/reduced graphene oxide (CS/rGO) nanocomposite has been prepared via simple chemical method. The polymer matrix-type chitosan/rGO nanocomposite, before and after encapsulation, has been analyzed by various characterizations. Entrapment and loading efficiencies were estimated. The results that demonstrated higher entrapment efficiency (> 90%) were achieved by CS/rGO nanocarrier. Various kinetic models were used to analyze the release model and to elucidate the release mechanism of the drug from CS/rGO nanocomposite. The synergistic cytotoxicity was observed on addition of 5-FU + CUR-loaded CS/rGO nanocomposite which shows the effectiveness of the system toward the inhibition of growth of HT-29 colon cancer cells. The better cytotoxicity with an IC50 of 23.8 μg/mL was observed for dual-drug-loaded nanocomposite.


Curcumin 5-Fluorouracil Chitosan/rGO composite Co-delivery Human colon cancer cells 



Author SD thanks UGC-UPE-Phase II for its financial aid as fellowship to carry out this research successfully. The authors would like to acknowledge Dr. J. Senthilselvan, Asst. Professor, Department of Nuclear Physics, University of Madras, for his support and helpful discussions.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • S. Dhanavel
    • 1
  • T. A. Revathy
    • 1
  • T. Sivaranjani
    • 1
  • K. Sivakumar
    • 2
  • P. Palani
    • 2
  • V. Narayanan
    • 3
  • A. Stephen
    • 1
    Email author
  1. 1.Department of Nuclear PhysicsUniversity of MadrasChennaiIndia
  2. 2.Centre for Advanced Studies in BotanyUniversity of MadrasChennaiIndia
  3. 3.Department of Inorganic ChemistryUniversity of MadrasChennaiIndia

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