Catalytic and antimicrobial properties of Ag and polyacrylic acid doped SrO nanocomposites; molecular docking analysis

Husnain Shahzad, Muhammad Imran*, Ali Haider, Sadia Naz, Ehtisham Umar, Anwar Ul-Hamid, Walid Nabgan, Mohammed M. Algaradah, Ahmed M. Fouda, Junaid Haider, Muhammad Ikram

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


This study investigates the co-precipitation synthesis of (2 and 4 wt%) Ag and polyacrylic acid-doped SrO nanocomposites for bactericidal activities and catalytic Rhodamine B (RhB) decolorization. The objective of the investigation was to minimize the rate of electron-hole recombination of SrO to enhance charge transfer. The influence of Ag and PAA on the crystal structure, morphology, absorbance wavelength, and exciton recombination rate of SrO was studied using a systematic characterization. The binary dopants were added into SrO to reduce the crystallite size, which produces the new active sites (reduces the recombination rate) and may generate reactive oxygen species (ROS). In a neutral medium with sodium borohydride (NaBH4), the synthesized nanocomposites demonstrated reasonable results for catalytic reduction of RhB dye (74.3 %). The bactericidal efficiency (96.6 %) of prepared samples was measured for Escherichia coli (E. coli) at various concentrations. Molecular docking studies were performed to rationale the antibacterial activity of PAA-SrO and Ag/PAA-SrO nanocomposites against DHFRE. coli, DHPSE. coli, and FabIE.coli suggested their role as inhibitors.

Original languageEnglish
Article number114970
JournalJournal of Photochemistry and Photobiology A: Chemistry
StatePublished - 1 Oct 2023

Bibliographical note

Publisher Copyright:
© 2023 The Author(s)


  • Escherichia coli
  • Molecular docking
  • Nanorod
  • Polyacrylic acid
  • Rhodamine B

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • General Physics and Astronomy


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