Highly Oxidized Graphene Quantum Dots from Coal as Efficient Antioxidants

Lizanne Nilewski, Kimberly Mendoza, Almaz S. Jalilov, Vladimir Berka, Gang Wu, William K.A. Sikkema, Andrew Metzger, Ruquan Ye, Rui Zhang, Duy Xuan Luong, Tuo Wang, Emily McHugh, Paul J. Derry, Errol Loïc Samuel, Thomas A. Kent*, Ah Lim Tsai, James M. Tour

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

74 Scopus citations

Abstract

Graphene quantum dots (GQDs) have recently been employed in various fields including medicine as antioxidants, primarily because of favorable biocompatibility in comparison to common inorganic quantum dots, although the structural features that lead to the biological activities of GQDs are poorly understood. Here, we report that coal-derived GQDs and their poly(ethylene glycol)-functionalized derivatives serve as efficient antioxidants, and we evaluate their electrochemical, chemical, and in vitro biological activities.

Original languageEnglish
Pages (from-to)16815-16821
Number of pages7
JournalACS Applied Materials and Interfaces
Volume11
Issue number18
DOIs
StatePublished - 8 May 2019

Bibliographical note

Publisher Copyright:
© 2019 American Chemical Society.

Keywords

  • antioxidant
  • carbon nanotechnology
  • coal
  • graphene quantum dots
  • superoxide dismutase

ASJC Scopus subject areas

  • General Materials Science

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