Jovana Periša

Jovana Periša
Vinča Institute of Nuclear Sciences | VIN · Department of Radiation Chemistry and Physics

PhD, Vinca Institute of Nuclear Sciences University of Belgrade

About

21
Publications
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192
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Introduction
Jovana Periša obtained PhD in chemistry from the Faculty of Chemistry, University of Belgrade and is currently working as an Assistant Research Professor at Vinca Institute of Nuclear Sciences. Her research is focused on novel luminescent materials synthesis and their application as well as on the chemical sensing.

Publications

Publications (21)
Article
Color tuning of down-shifting and up-conversion emissions of YOF:Ln³⁺/Yb³⁺ (Ln³⁺ = Ho³⁺, Er³⁺, Tm³⁺) nanophosphors is demonstrated. Nanophosphors were prepared by the modified sol-gel Pechini method and characterized by the X-ray diffraction, transmission electron microscopy, and photoluminescence spectroscopy. Samples consist of 20 nm particles cr...
Article
The aim of this research was to investigate the luminescent behavior of ultra-small Eu³⁺-activated phosphate and vanadate nanoparticles in the presence of pesticides. Nanoparticles have an average diameter of approximately 2 nm with a narrow size distribution. The monazite crystal structure of phosphate-based particles (space group P121/n1) and sin...
Article
Full-text available
This paper presents four new temperature readout approaches to luminescence nanothermometry in spectral regions of biological transparency demonstrated on Yb3+/Er3+-doped yttrium aluminum garnet nanoparticles. Under the 10 638 cm-1 excitation, down-shifting near infrared emissions (>10 000 cm-1) are identified as those originating from Yb3+ ions' 2...
Article
The multiparametric luminescence thermometry with Dy³⁺, Cr³⁺ double activated yttrium aluminium garnet – YAG is demonstrated. Phospors were synthesized via Pechini method and their structure is confirmed by X-ray diffraction analysis. Mean crystallite size of powders was calculated to be ~22 nm. Morphology was investigated using scanning electron m...
Article
Potential of Eu³⁺, Mn⁴⁺ co-doped YAG for dual-activated luminescence intensity ratio thermometry is investigated. The samples were prepared by modified Pechini method and cubic structure confirmed by X-ray diffraction with average crystallite size of ∼ 20 nm. Scanning electron microscopy revealed different sized chunks composed of ellipsoidal-shape...
Article
Full-text available
The antibacterial performance and cytotoxic examination of in situ prepared silver nano-particles (Ag NPs), on inorganic-organic hybrid nanopowder consisting of zirconium dioxide nano-particles (ZrO2 NPs) and dihydroquercetin (DHQ), was performed against Gram (−) bacteria Esche-richia coli and Gram (+) bacteria Staphylococcus aureus, as well as aga...
Article
We demonstrate the thermal history forensic measurements founded on the emission intensity ratio of Eu³⁺-doped yttrium vanadate. An increase in phosphor’s crystallite size with annealing temperature is observed, causing a significant and permanent increase in the emission intensity and symmetry ratio (ratio of Eu3+ 5D0 → ⁷F1 and ⁵D0 → ⁷F2 emissions...
Article
Full-text available
The near-infrared luminescence of Ca6Ba(PO4)4O:Mn5+ is demonstrated and explained. When excited into the broad and strong absorption band that spans the 500–1000 nm spectral range, this phosphor provides an ultranarrow (FWHM = 5 nm) emission centered at 1140 nm that originates from a spin-forbidden 1E → 3A2 transition with a 37.5% internal quantum...
Article
Full-text available
Y3NbO7:xEu3+ powders (x = 0.25, 0.5, 0.75, 2, 3, 5, 10 at%) were synthesized by a two-step vibrational milling, alternating with annealing. All the samples crystallize as fluorite-type structure, with crystallite size 50–60 nm and show a strong orange/red luminescence with an excited state lifetime around 1.2 ms. Photoluminescence excitation and em...
Article
We report on overcoming the sensitivity limit of Boltzmann's thermometers by utilization of seven thermalized Dy³⁺ excited states in the Lu1.5Y1·5Al5O12 host. Emission spectra recorded from room temperature to 938 K show transitions originating from seven ⁴F9/2, ⁴I15/2, ⁴G11/2, ⁴I13/2, ⁴M21/2, ⁴K17/2, and ⁴F7/2 excited levels to the ⁶H15/2 ground s...
Article
The luminescence thermometry based on the intensity ratio of Cr³⁺ and host emissions in the Cr³⁺ activated MgTiO3 phosphor powder is demonstrated over the 100–350 K temperature range. Phosphor was prepared by a two-step procedure based on the sol-gel and molten salt methods. Rhombohedral crystal structure of the material is confirmed by X-ray diffr...
Article
Temperature sensing from the photoluminescence of MgAl2O4:Cr³⁺ ceramic powder is systematically investigated. Material was prepared by self-propagating high temperature synthesis method. In this host, Cr³⁺ experiences the strong crystal field, so the overlapping emissions from ²E and ⁴T2 energy levels are observed. Emission and excitation spectra w...
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Full-text available
A promising way to improve the performance of luminescent materials is to combine them with noble metal nanoparticles. Herein, a set of silver/europium-doped lanthanum orthophosphate (Ag/La 0.95 Eu 0.05 PO 4) nanostructures with different concentrations of silver nanoparticles were prepared and investigated. The presented overlap between the strong...
Article
Full-text available
A strategy for optical nanothermometry using the negative thermal quenching behavior of intrinsic BiFeO3 semiconductor nanoparticles has been reported here. X-ray diffraction measurement shows polycrystalline BiFeO3 nanoparticles with a rhombohedral distorted perovskite structure. Transmission electron microscopy shows agglomerated crystalline nano...
Article
Full-text available
The emission of Er 3+ provides three combinations of emission bands suitable for ratiometric luminescence thermometry. Two combinations utilize ratios of visible emissions (2 H 11/2 → 4 I 15/2 at 523 nm/ 4 S 3/2 → 4 I 15/2 at 542 nm and 4 F 7/2 → 4 I 15/2 at 485 nm/ 4 S 3/2 → 4 I 15/2 at 545 nm), while emissions from the third combination are locat...
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Full-text available
Fluorescence excitation-emission matrices were measured for 111 samples of different types of beer and studied by the parallel factor analysis (PARAFAC). The 5-component PARAFAC model was found to suitably describes the beer fluorescence, accounting for 99.4% of the fluorescence variance in the measured set of samples, and providing the completely...
Article
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 diffr...
Article
This paper provides the detailed study of (nano)particle’s size effect on structural and luminescent properties of LaPO4:Eu3+ synthesized by four different methods: high temperature solid-state, co-precipitation, reverse micelle and colloidal. These methods delivered monoclinic monazite-phase submicron particles (> 100 nm), 4 × 20 nm nanorods and 5...
Article
This paper presents parallel factor analysis (PARAFAC) of fluorescence of cereal flours. Excitation-emission matrices (EEM’s) of different cereal flours (wheat, corn, rye, rice, oat, spelt, barley and buckwheat) were measured in a front-face configuration over the ultraviolet–visible spectral range. EEM’s showed that flours strongly fluoresce in tw...
Article
Full-text available
The syntheses and antiplasmodial activities of various substituted aminoquinolines coupled to an adamantane carrier are described. The compounds exhibited pronounced in vitro, and in vivo activity against P. berghei in the Thompson test. Tethering a fluorine atom to the aminoquinoline C(3) position afforded fluoroaminoquinolines that act as intra-h...

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