Dominika Przybylska

Dominika Przybylska
Adam Mickiewicz University | UAM · Department of Rare Earths

Dr

About

21
Publications
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278
Citations
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October 2015 - June 2019
Adam Mickiewicz University
Position
  • PhD Student

Publications

Publications (21)
Article
The unique properties of upconverting nanoparticles are responsible for their various applications in photonic materials, medicine, analytics, or energy conversion. In this work, the NaErF4:Tm³⁺@NaYF4 [email protected] nanoparticles were synthesized by reaction in high-boiling point solvents and incorporated into cellulose fibers. Nanoparticles sho...
Article
The increasingly wide-spreading falsification of documents, clothing, and packaging has a negative impact on every aspect of the global markets. Therefore, the development of high-quality strategies for materials protection has become a big challenge. Thus, this work presents novel anti-counterfeiting lyocell fibres, exhibiting bright green or yell...
Article
Full-text available
The synthesis of upconverting nanoparticles (NPs) is crucial for their spectroscopic properties and further applications. Reducing the size of materials to nano-dimensions usually decreases emission intensity. Therefore, scientists around the world are trying to improve the methods of obtaining NPs to approach levels of emission intensity similar t...
Article
Full-text available
Water-dispersible up-converting nanoparticles (UCNPs) are known to be very effective in biomedical applications. Research groups have paid special attention to the synthesis of hydrophilic UCNPs with good physicochemical properties. Being aware of this, we decided to improve the ligand-free modification method of OA-capped NaYF 4 :Yb 3+ ,Er 3+ /NaY...
Article
Full-text available
The right choice of synthesis route for upconverting nanoparticles (UCNPs) is crucial for obtaining a well-defined product with a specific application capability. Thus we decided to compare the physicochemical, cytotoxic, and temperature-sensing properties of UCNPs obtained from different rare earth (RE) ions, which has been made for the first time...
Article
Full-text available
Nanoparticles (NPs) based on host compound NaYF4 with core@shell structures were synthesised by the precipitation reaction in high-boiling point octadecene/oleic acid solvent. Four laser wavelengths were used (808, 975, 1208, or 1532 nm) for excitation of the obtained NPs. The resulting emission and mechanisms responsible for spectroscopic properti...
Preprint
Full-text available
Water-dispersible up-converting nanoparticles (UCNPs) are known to be very effective in biomedical applications. Research groups have paid special attention to the synthesis of hydrophilic UCNPs with good physicochemical properties. Being aware of this, we decided to improve the ligand-free modification method of OA-capped NaYF 4 :Yb ³⁺ ,Er ³⁺ /NaY...
Article
Full-text available
Control of morphology and spectroscopic properties during the synthesis of up-converting nanoparticles (NPs) is a great challenge. One of the most popular ways of NPs synthesis is the hydrothermal method, which is relatively simple, effective, environmentally friendly and permits easy control of synthesis parameters. For these reasons, the hydrothe...
Article
The use of functional nanomaterials and their combination with organic polymers leads to the formation of advanced composites and hybrid inorganic-organic systems having unique properties. The use of such materials as anti-counterfeiting agents (invisible under ambient conditions) is crucial for modern security systems and for further identificatio...
Article
Full-text available
The concept of optical temperature sensing, based mainly on the band intensity ratio, line shift or luminescence lifetimes, is utilized for non-invasive and rapid detection of local temperature values in the inspected systems. For these purposes, lanthanide-doped nanoparticles (NPs) seem to be the most promising luminescence nanothermometers, becau...
Article
Full-text available
Sensitization of nanoparticles (NPs) by appropriate lanthanide ions is crucial for the obtained spectroscopic properties. Nd³⁺ ions can absorb light at around 808 nm, allowing for deep tissue imaging, Yb³⁺ ions can be effectively excited by 975 nm radiation which is utilized in many areas, e.g. in anti-counterfeit applications, while Er³⁺ ions are...
Article
Full-text available
For a number of years nanomaterials have been continuously devised and comprehensively investigated because of the growing demand for them and their multifarious applications, especially in medicine. This paper reports on the properties of SrF2 nanoparticles (NPs) for applications in biomedicine, showing effective ways of their synthesis and lumine...
Article
Ultrasmall (9-30 nm) Yb3+/Er3+-doped, upconverting alkaline rare-earth fluorides that are promising for future applications were synthesized by the microwave-assisted hydrothermal method. The formation mechanism was proposed, indicating the influence of the stability of metal ions complexes with ethylenediaminetetraacetic acid on the composition of...
Article
Full-text available
Anti-Stokes luminescence of up-converting nanocrystals SrF2:Yb³⁺, Er³⁺ can be used as a high pressure optical sensor alternative to the ruby fluorescence-scale. In nanocrystalline SrF2:Yb³⁺, Er³⁺ high pressure reversibly shortens the emission lifetimes nearly linearly up to 5.29 GPa at least. Its advantage is the use of NIR (≈ 980 nm) radiation, hi...
Article
Nanomaterials based on BaREF5 fluorides (where RE = Y, Gd and Lu), doped with lanthanide ions Yb3+/Ln3+ (Ln = Er, Ho or Tm) were synthesized by microwave assisted hydrothermal method. The method of synthesis, structural and morphological properties are reported and discussed. The products obtained showed visible upconversion luminescence excited by...

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Projects

Projects (5)
Project
The aim of the study is to evaluate the influence of lanthanide-doped nanoparticles on biology, ecology and behaviour of invertebrates. Project's research hypothesis assumes that nanoparticles (NPs) are taken up by animals, accumulated in their body and have impact on them. Therefore, the occurrence of bioaccumulation of the nanocrystals in freshwater and terrestrial biota will be determined. Moreover, the sublethal effects of the studied NPs to freshwater and terrestrial invertebrates will be identified. In addition, influence of the nanoparticles on biology and physiology of plants will be analysed. One of the project goals is verification of the hypothesis that lanthanide-doped nanocrystals are transferred in trophic chains (freshwater and terrestrial).
Project
The main goal of the project is to synthesize nanoparticles with the core/shell structure showing up-conversion luminescence under excitation with radiation from the second or third biological window (1000 –1350 nm or 1500 –1870 nm, NIR-II or NIR-III respectively).
Project
• to obtain cellulose fibres and paper – ecological materials, which structure will be modified with luminescent modifiers, ML, synthesized, • to prepare yarn or knitted structure based on modified cellulose fibres, • to synthesize printer inks modified with ML and to get luminescence overprints on paper. In the project research tasks were created: • a synthesis of ML – inorganic micro- and nanophosphors with suitably designed spectroscopic properties, based on rare earth elements, which emit visible light with desired colour, under dual-mode excitation of ultraviolet UV or/and infrared radiation IR, • the synthesis of ML with the use of selected method, including: hydro- and solvothermal reactions, precipitation in the high-boiling solvents and co-precipitation in the presence of compounds preventing agglomeration of the crystallites, • optimization of the preparation method of the cellulose fibres modified with ML and fabrication yarn or knitted structure, • development of the manufacturing process and production of the modified paper, • designing and production of the inks containing ML.