Carbon quantum dots modified Ag2S/CS nanocomposite as effective antibacterial agents

Xiang Gao, Hongxia Li, Xiaohui Niu, Deyi Zhang, Yi Wang, Haiyan Fan, Kunjie Wang

Research output: Contribution to journalReview articlepeer-review


The present study attempted to synthesize carbon quantum dots (CQDs) through Aldol polymerization reaction, wherein acetone was used as the carbon source. A nano composite CQDs/Ag2S/CS was developed by loading as prepared CQDs and Ag2S nanoparticles on a chitosan substrate (CS). An in-situation growth of nanocomposites was adopted to study their antibacterial properties. Staphylococcus aureus (Gram-positive), Escherichia coli (Gram-negative) and methicillin-resistant Staphylococcus aureus were selected as the model bacteria. The CQDs/Ag2S/CS nanocomposites exhibited excellent inhibition not only against common pathogenic bacteria, but also those well-known drug-resistant bacteria. Moreover, compared to traditional antibiotics, the as prepared nanocomposites in the present work do not likely cause bacterial drug resistance, which make them a potential candidate for a new type of clinically applicable antibiotics.

Original languageEnglish
Article number111456
JournalJournal of Inorganic Biochemistry
Publication statusPublished - Jul 2021


  • AgS
  • Antibacterial agent
  • Carbon quantum dots
  • Chitosan
  • Nanocomposites
  • Resistant bacteria

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry


Dive into the research topics of 'Carbon quantum dots modified Ag<sub>2</sub>S/CS nanocomposite as effective antibacterial agents'. Together they form a unique fingerprint.

Cite this