Malovytsia, U., Zhytniakivska, O., Vus, K., Trusova, V. and Gorbenko, G. 2025. Assessment of the Sensitivity of a Fluorescent Squaraine Dye to Heavy Metal Ions. East European Journal of Physics. 4 (Dec. 2025), 715-719. DOI:https://doi.org/10.26565/2312-4334-2025-4-78.