RETRACTION: Synthesis and Characterization of Additive Graphene Oxide Nanoparticles Dispersed in Water: Experimental and Theoretical Viscosity Prediction of non‐Newtonian Nanofluid

RETRACTION : Y. Xu, Q. Nguyen, O. Malekahmadi, R. Hadi, Z. Jokar, A. Mardani, A. Karimipour, R. Ranjbarzadeh, Z. Li, Q.‐V. Bach, “Synthesis And Characterization Of Additive Graphene Oxide Nanoparticles Dispersed In Water: Experimental And Theoretical Viscosity Prediction Of Non‐Newtonian Nanofluid”, Mathematical Methods in the Applied Sciences (Early View): https://doi.org/10.1002/mma.6381 . The above article, published online on 05 April 2020 in Wiley Online Library ( wileyonlinelibrary.com ), has been retracted by agreement between the journal Editor‐in‐Chief, Wolfgang Sprößig; and John Wiley & Sons Ltd. The article was submitted as part of a guest‐edited special issue. As part of an investigation, the journal discovered that the article was accepted solely on the basis of compromised editorial handling and what appears to be a manipulated peer review process. When informed of the decision to retract the article, the institution which was listed as the affiliation for five of the authors noted that four of them were never affiliated with the institution, and that the department noted in the affiliations (the Department of Mechanical Engineering, University of Rome, Sapienza, Italy) does not exist. As a result, the data and conclusions are considered unreliable, and the accountability of the authorship is considered compromised. Therefore the article must be retracted. Author R. Ranjbarzadeh has been informed of the retraction and stated that his involvement with the research was limited to part of the experimental measurements, and that he was not involved in the data analysis, writing, or submission of the manuscript. The corresponding author has agreed that author R. Ranjbarzadeh's role in the production of the data and article was limited to taking basic laboratory measurements.