Tomato-derived carbon quantum dots: composition-driven structure and copper sensing potential
Jovana Periša, Jan Hočevar, Bojana Milićević, Jernej Iskra, Boštjan Genorio, Darja Lisjak, Miroslav D. Dramićanin, Jelena Papan Djaniš · 2026
Read Tomato-derived carbon quantum dots: composition-driven structure and copper sensing potential by Jovana Periša, Jan Hočevar, Bojana Milićević, Jernej Iskra, Boštjan Genorio, Darja Lisjak, Miroslav D. Dramićanin, Jelena Papan Djaniš (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13538402.txt.
Description
Jovana Periša and co-authors turn tomato waste into glowing carbon dots for copper sensing in a 2026 study. Stems and fruits served as separate carbon sources, with a nitrogen helper added to tune surface chemistry. The dots formed stable nanoscale clusters in water and glowed strongly under ultraviolet light, with brightness depending on excitation color. Detailed surface checks linked starting material to glow behavior.
Precursor choice shaped defect levels and surface groups, directly steering glow strength. Both dot types dimmed sharply when copper ions bound to surface groups, enabling detection at very low levels with slightly better sensitivity for stem dots. Surface oxygen and nitrogen groups drove the strong metal grip. The authors present farm waste conversion as a cheap, green route to useful sensors.
Catalog record
| CREATOR | Jovana Periša, Jan Hočevar, Bojana Milićević, Jernej Iskra, Boštjan Genorio, Darja Lisjak, Miroslav D. Dramićanin, Jelena Papan Djaniš |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 50177 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |