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TY - JOUR
AU - Periša, Jovana
AU - Lenhardt Acković, Lea
AU - Jovanović, Dragana J.
AU - Dramićanin, Miroslav
PY - 2019
UR - https://linkinghub.elsevier.com/retrieve/pii/S0925346719300345
UR - https://vinar.vin.bg.ac.rs/handle/123456789/8043
AB - EuPO4 and Eu3+-activated REPO4 (RE = La, Dy, Er) ultrasmall fluorescent nanoparticles (NPs) with an average diameter of 2.1 nm were prepared via colloidal synthesis and tested for sensing Cu2+ and other heavy-metal ions. The pure monoclinic monazite crystal structure (space group P121/n1) of the synthesized particles was confirmed using X-ray diffraction measurements, and transmission electron microscopy images showed round particles with a narrow particle-size distribution. The NPs exhibited intense red emission, which is characteristic of the f-f electronic transition of Eu3+, and the quenching of their emission in the presence of heavy-metal ions was revealed by dispersing colloidal particles in a TRIS buffer and then performing photoluminescence measurements. Strong quenching of the emission (at a rate of 0.195 μM−1) was observed upon the addition of Cu2+ ions over the concentration range of 0–10 μM with a limit of detection of 60 nM for Cu2+. The recovery of nearly 90% of the original emission intensity of the probe was achieved via the addition of ethylendiaminetetraacetic acid and was possible in five quenching/recovery cycles. © 2019
T2 - Optical Materials
T1 - Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles
VL - 89
SP - 142
EP - 148
DO - 10.1016/j.optmat.2018.12.059
ER -
@article{
author = "Periša, Jovana and Lenhardt Acković, Lea and Jovanović, Dragana J. and Dramićanin, Miroslav",
year = "2019",
abstract = "EuPO4 and Eu3+-activated REPO4 (RE = La, Dy, Er) ultrasmall fluorescent nanoparticles (NPs) with an average diameter of 2.1 nm were prepared via colloidal synthesis and tested for sensing Cu2+ and other heavy-metal ions. The pure monoclinic monazite crystal structure (space group P121/n1) of the synthesized particles was confirmed using X-ray diffraction measurements, and transmission electron microscopy images showed round particles with a narrow particle-size distribution. The NPs exhibited intense red emission, which is characteristic of the f-f electronic transition of Eu3+, and the quenching of their emission in the presence of heavy-metal ions was revealed by dispersing colloidal particles in a TRIS buffer and then performing photoluminescence measurements. Strong quenching of the emission (at a rate of 0.195 μM−1) was observed upon the addition of Cu2+ ions over the concentration range of 0–10 μM with a limit of detection of 60 nM for Cu2+. The recovery of nearly 90% of the original emission intensity of the probe was achieved via the addition of ethylendiaminetetraacetic acid and was possible in five quenching/recovery cycles. © 2019",
journal = "Optical Materials",
title = "Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles",
volume = "89",
pages = "142-148",
doi = "10.1016/j.optmat.2018.12.059"
}
Periša, J., Lenhardt Acković, L., Jovanović, D. J.,& Dramićanin, M.. (2019). Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles. in Optical Materials, 89, 142-148.
https://doi.org/10.1016/j.optmat.2018.12.059
Periša J, Lenhardt Acković L, Jovanović DJ, Dramićanin M. Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles. in Optical Materials. 2019;89:142-148.
doi:10.1016/j.optmat.2018.12.059 .
Periša, Jovana, Lenhardt Acković, Lea, Jovanović, Dragana J., Dramićanin, Miroslav, "Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles" in Optical Materials, 89 (2019):142-148,
https://doi.org/10.1016/j.optmat.2018.12.059 . .
