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Updated: Feb 4, 2026

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
Published on: September 22, 2015
Graphene oxide-chloroquine nanoconjugate induce necroptotic death in A549 cancer cells through autophagy modulation
Braham D Arya1,2, Sandeep Mittal2,3, Prachi Joshi1
1CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi 110012, India.
Aim:
Chloroquine (Chl) has shown its potential in cancer therapy and graphene oxide (GO) exhibited excellent tumor-targeting ability, biocompatibility and low toxicity. We have endeavored to conjugate Chl to GO sheets and investigated the nonproliferation action on A549 cell lines along with cell signaling pathways.
Materials & Methods:
Cellular toxicity, autophagic flux modulation and cell death mechanism induced by GO-Chl have been investigated on A549 cell lines.
Results & Conclusion:
GO-Chl induces accumulation of autophagosomes (monodansylcadaverine staining, green fluorescence protein-tagged LC3 plasmid and transmission electron microscopy observations) in A549 cells through the blockade of autophagic flux that serves as scaffold for necrosome assembling and activates necroptotic cell death. GO-Chl nanoconjugate could be used as an effective cancer therapeutic agent, by targeting the autophagy necroptosis axis.
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