phys.org is the science-news outlet whose write-up, "Toothbrush-activated powder whitens, repairs and protects teeth," opens the source archive dossier on Sr-Ca-Ba-TiO₃ toothpaste (Min Xing et al., Sr-Ca-Ba-TiO₃ Toothpaste: Whitening and Remineralization Dossier).
In this dossier, phys.org functions as the popular-science layer: it is the press framing of the underlying ACS Nano paper (ACS Nano Paper on Sr-, Ca-Doped BaTiO₃ (acsnano.5c16997)) and the BSCT (Ba₀.₉Sr₀.₀₅Ca₀.₀₅TiO₃) material. The dossier reproduces the press headline and image but not the full press article text; the substantive technical content in the dossier comes from the paper abstract and patent CN119430910 — Piezoelectric Ceramic Powder for Whitening and Mineralizing Teeth.
The wiki treats press coverage as a secondary layer. A press write-up is not evidence of efficacy; it is a signal that a claim was publicized. See Patent as Evidence for the analogous caution about patents.
Source notes & attribution
- https://rexresearch.com/XingBaTiCaToothpaste/XingSrCaBaTiO3Toothpaste.html