Retraction Notice to “Application of Ag Nanoparticles Decorated on Graphene Nanosheets for Electrochemical Sensing of Cea As an Important Cancer Biomarker” [Environ. Res. 239 (2023) 117363] (Environmental Research (2023) 239(P2), (S0013935123021679), (10.1016/J.Envres.2023.117363)) Publisher



Yan M ; Fu L L ; Feng H C ; Namadchian M
Source: Environmental Research Published:2026

Abstract

This article has been retracted: please see Elsevier policy on article withdrawal (https://www.elsevier.com/about/policies-and-standards/article-withdrawal). This article has been retracted at the request of the Editor. The authors failed to respond to queries regarding either the problematic figure discussed on PubPeer at https://pubpeer.com/publications/356320DB5E3049F40BB9627A28C21B or suspicious authorship changes. In the absence of a response the Editor assessed the information available and observed that the plot in Figure 1 which is displayed as a dotted line in the published article was displayed as a solid line in the original version. This would indicate that the plot has been generated using datapoints, however in the absence of this underlying data it is not possible to assess its veracity and as such readers should exercise caution. An unauthorised authorship change was made when the revised version of this paper was submitted with 3 authors (Ming Yan, Ling-ling Fu, Hong-chao Feng) being added to the paper to replace four authors who were deleted. No satisfactory explanation was given for this change, nor was it approved by the editor. This authorship change breaches the policies of the journal and as a result the article is being retracted. © 2026 Elsevier Inc.