RETRACTION: Synthesis of Silver and Gold Nanoparticles: Chemical and Green Synthesis Method and Its Toxicity Evaluation against Pathogenic Bacteria Using the ToxTrak Test

RETRACTION: P. K. Tyagi, C. Quispe, J. Herrera-Bravo, S. Tyagi, D. Barbhai Mrunal, M. Kumar, A. S. Dablool, S. Alghamdi, G. E. Batiha, J. Sharifi-Rad, and S. Ramniwas, “Synthesis of Silver and Gold Nanoparticles: Chemical and Green Synthesis Method and Its Toxicity Evaluation against Pathogenic Bacteria Using the ToxTrak Test,” Journal of Nanomaterials, 2021, 3773943, https://doi.org/10.1155/2021/3773943. The above article, published online on 30 December 2021 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by John Wiley & Sons Ltd. The retraction has been agreed due to simialrities between the Figure 5b and the Figure 1c of [1], which shows nanoparticles of different materials. After an assessment of the concerns and the author’s response by a subject matter expert, the results and conclusions are considered no longer reliable, and the article is therefore retracted. Manoj Kumar disagrees with the retraction. The remaining authors did not respond to indicate their agreement or disagreement.