Correction: Self-powered, online, highly sensitive lubricating oil acidity monitoring driven by a triboelectric sensor (J. Mater. Chem. A (2025) DOI: 10.1039/D5TA00241A)

The authors regret that there was an error in the units provided in the Abstract, on Page 5 and in the Conclusions of the original article. mg cm−1 should be mg cm−2. Within the Abstract of the article, in the sentence beginning “It was found that the amino group on the surface.” the unit should be listed as mg cm−2. On the 5th page of the article, within Section 2.2, in the sentences beginning “The stable adsorption mass of the base oil.” and “The adsorption masses for the surface of FCNH-0.”, the units should be listed as mg cm−2. Within the Conclusions of the article, in the sentence beginning “The FCNH-based surface-modified amino groups.” the unit should be listed as mg cm−2. The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.