Kladsomboon, S., Poosinuntakul, N., Chailapakul, O., Apilux, A. (2026). A paper-based fluorometric sensor using L-Cys-CdTe quantum dots coupled with smartphone readout for automated pretreatment and detection of Cu(II). Scientific Reports. https://doi.org/10.1038/s41598-026-61732-y