A1 Journal article (refereed)
A handy and accessible tool for identification of Sn(II) in toothpaste (2022)

Kundu, S., Truong, K.-N., Saha, S., Rissanen, K., & Sahoo, P. (2022). A handy and accessible tool for identification of Sn(II) in toothpaste. Scientific Reports, 12, Article 2305. https://doi.org/10.1038/s41598-022-06299-0

JYU authors or editors

Publication details

All authors or editors: Kundu, Shampa; Truong, Khai-Nghi; Saha, Shrabani; Rissanen, Kari; Sahoo, Prithidipa

Journal or series: Scientific Reports

eISSN: 2045-2322

Publication year: 2022

Publication date: 10/02/2022

Volume: 12

Article number: 2305

Publisher: Nature Publishing Group

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1038/s41598-022-06299-0

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/79766


An easily accessible colorimetric probe, a carbazole–naphthaldehyde conjugate (CNP), was successfully prepared for the selective and sensitive recognition of Sn(II) in different commercially-available toothpaste and mouth wash samples. The binding mechanism of CNP for Sn2+ was confirmed by UV–Vis, 1H, and 13C NMR titrations. The proposed sensing mechanism was supported by quantum chemical calculations. Selective detection of Sn(II) in the nanomolar range (85 nM), among other interfering metal ions, makes it exclusive. Moreover, Sn2+ can be detected with a simple paper strip from toothpaste, which makes this method handy and easily accessible. The potential application of this system for monitoring Sn2+ can be used as an expedient tool for environmental and industrial purposes.

Keywords: chemical compounds; tin; fluorides; toothpastes; health effects; environmental effects; chemistry

Free keywords: chemistry; toothpaste; environmental effects

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2022

Preliminary JUFO rating: 1

Last updated on 2022-20-09 at 14:54