Abstract
The following article is under investigation due to concerns raised on PubPeer regarding some of the published images:
Uyor, U.O., Popoola, A.P.I., Popoola, O.M., & Aigbodion, V.S. Tribological and nanomechanical responses of 3D microstructured polypropylene matrix using interpenetrated graphene-carbon nanotubes. Journal of Thermoplastic Composite Materials. 2021; 36(2). https://doi.org/10.1177/08927057211028639
This expression of concern will remain in place until the investigation is complete and a decision has been made if any corrective action needs to occur.