A5082286443- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Nanoparticles: synthesis and applications
- Catalytic Processes in Materials Science
- Polymer Nanocomposites and Properties
- Nanoparticle-Based Drug Delivery
- ZnO doping and properties
- Quantum Dots Synthesis And Properties
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanoplatforms for cancer theranostics
- Iron oxide chemistry and applications
- Perovskite Materials and Applications
- Conducting polymers and applications
- Advanced Polymer Synthesis and Characterization
- Gas Sensing Nanomaterials and Sensors
- Nanomaterials for catalytic reactions
- Advanced Nanomaterials in Catalysis
- Polymer crystallization and properties
- Advanced Sensor and Energy Harvesting Materials
- Electrochemical sensors and biosensors
- Metal and Thin Film Mechanics
- Luminescence Properties of Advanced Materials
- Nanowire Synthesis and Applications
- Copper-based nanomaterials and applications
- Surfactants and Colloidal Systems
Adam Mickiewicz University in Poznań
2016-2025
Poznań University of Technology
2020
Institute of Physics
2003
Abstract The aim of our work was the synthesis ZnO nano- and microparticles to study effect shapes sizes on cytotoxicity towards normal cancer cells antibacterial activity toward two kinds bacteria. We fabricated through facile chemical physical routes. crystal structure, morphology, textural properties, photoluminescent properties were characterized by powder X-ray diffraction, electron microscopies, nitrogen adsorption/desorption measurements, photoluminescence spectroscopy. obtained...
Due to development of nanotechnology and gold nanoparticles (AuNPs) increasing use in different areas medicine, especially oncology, better understanding their potential cytotoxicity is necessary protect patients safety. Shape size AuNPs an important modulator cytotoxicity. Therefore, we investigated the rods (≈39 nm length, 18 width), stars (≈ 215 nm) spheres 6.3 against human fetal osteoblast (hFOB 1.19), osteosarcoma (143B, MG63) pancreatic duct cell (hTERT-HPNE) lines by MTT neutral-red...
A series of TiO₂-ZnO binary oxide systems with various molar ratios TiO₂ and ZnO were prepared using a sol-gel method. The influence the ratio temperature calcination on particle sizes, morphology, crystalline structure, surface composition, porous structure parameters, thermal stability final hybrids was investigated. Additionally, to confirm presence characteristic groups material, Fourier transform infrared spectroscopy applied. It found that determined by process for most part. key...
Nanolaminates are new class of promising nanomaterials with outstanding properties. Here we explored on the tuning structural properties and enhancement electronic optical 1D PAN ZnO/Al2O3 nanolaminates designed by atomic layer deposition (ALD) electrospinning. The influence bilayer thicknesses fundamental has been investigated. Due to quantum confinement effect, shift XPS peaks higher energies observed. Work function Al2O3 was mostly independent bilayers number, whereas ZnO work decreased...
MXenes are a novel family of 2D materials, which extensively investigated for common use in energy storage systems, nanoelectronics, and electromagnetic shielding. Although their unique physicochemical properties render wide applicability, cytotoxic response safety still remain concern. From this perspective, it is imperative to perform an vitro investigation the influence different forms precursors on human cell lines. Therefore, we prepared selection multi-, few-, single-layered Ti3C2Tx,...
The aim of this study was to provide deep insight into photocatalytic degradation ciprofloxacin (CIP) over CeO2/ZnO nanocomposites. Catalysts used in work were synthesized by a simple co-precipitation method and fully characterized means XRD, nitrogen physisorption, TEM, UV–vis, PL XPS. Degradation CIP tracked UV–vis LC-MS techniques the mineralization efficiency determined TOC analyses. It documented that nanocomposites ca. twice more active than undoped ZnO 10 times pristine CeO2. improved...
The development of a photocatalyst with remarkable activity to degrade pollutants in aqueous and gas phase requires visible light-responsive stable materials, easily organized the form thin layer (to exclude highly expensive separation step). In this work, we present one-step strategy for synthesizing material self-organized TiO2/Ag2O nanotube (NT) array interlaced silver nanoparticles (as cake raisins) that exhibited photoactivity significantly enhanced compared pristine TiO2 NTs under both...
The characteristic mineral-free fibrous skeletons (made of structural protein-spongin) <italic>H. communis</italic> (Demospongiae: Porifera) was used as a template in hydrothermal synthesis hematite (α-Fe<sub>2</sub>O<sub>3</sub>) nanoparticles.
We report on the preparation method of nanocrystalline titanium dioxide modified with platinum by using nanosecond laser ablation in liquid (LAL).
New interesting aspects of the spectroscopic properties, magnetism, and method synthesis gadolinium orthovanadates doped with Eu3+ ions are discussed. Gd1–xEuxVO4 (x = 0, 0.05, 0.2) bifunctional luminescent materials complex magnetic properties were synthesized by a microwave-assisted hydrothermal method. Products formed in situ without previous precipitation. The crystal structures morphologies obtained nanomaterials analyzed X-ray diffraction transmission scanning electron microscopy....
The combination of TiO₂ photocatalyst and magnetic oxide nanoparticles enhances the separation recoverable properties nanosized photocatalyst. Metal-modified (Me = Pd, Au, Pt, Cu) TiO₂/SiO₂@Fe₃O₄ nanocomposites were prepared by an ultrasonic-assisted sol-gel method. All samples characterized X-ray powder diffraction (XRD) analysis, Brunauer-Emmett-Teller (BET) method, photoelectron spectroscopy (XPS), scanning transmission electron microscopy (STEM), Mott-Schottky analysis photoluminescence...
We explored for the first time ability of a three-dimensional polyacrylonitrile/ZnO material—prepared by combination electrospinning and atomic layer deposition (ALD) as new material with large surface area—to enhance performance optical sensors volatile organic compound (VOC) detection. The photoluminescence (PL) peak intensity these one-dimensional nanostructures has been enhanced factor 2000 compared to flat Si substrate. In addition, phase transition ZnO ALD coating from amorphous...
Core-interlayer-shell Fe3O4/SiO2/TiO2, CoFe2O4/SiO2/TiO2 and BaFe12O19/SiO2/TiO2 magnetic photocatalysts were obtained. A water-in-oil microemulsion system with suitable surfactants was used for functionalization of the core silica interlayer TiO2-based photocatalyst. Uncoated coated particles characterized by electrophoretic measurements, X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission (TEM), specific surface area (BET) diffuse reflectance spectroscopy (DRS)...
AT101, the R-(-)-enantiomer of cottonseed-derived polyphenol gossypol, is a promising drug in glioblastoma multiforme (GBM) therapy due to its ability trigger autophagic cell death but also facilitate apoptosis tumor cells. It does have some limitations such as poor solubility water-based media and consequent low bioavailability, which affect response rate during treatment. To overcome this drawback improve anti-cancer potential use cubosome-based formulation for AT101 delivery has been...
Seed priming is a pre-sowing method successfully used to improve seed germination. Since water plays crucial role in germination, the aim of this study was investigate relationship between better germination performances osmoprimed
Structural, optical, and mechanical properties of Al2O3/TiO2 nanolaminates fabricated by atomic layer deposition (ALD) were investigated. We performed transmission electron microscopy (TEM), X-ray diffraction (XRD), reflectivity (XRR), energy dispersive spectroscopy (EDX), ellipsometry, UV–vis spectroscopy, photoluminescence (PL) nanointendation to characterize the nanolaminates. The main structural, parameters (thickness, grain size, refractive index, extinction coefficient, band gap,...
The structural, optical, and photoluminescence properties of porous silicon (PSi)/titanium dioxide (TiO2) nanostructures were investigated. PSi structures consisting macro- mesoporous layers fabricated by metal-assisted chemical etching, then TiO2 was introduced inside the matrix using atomic layer deposition technique. We performed scanning electron microscopy, transmission microscopy (TEM), X-ray diffraction, energy dispersive spectroscopy, Raman ellipsometry, (PL) spectroscopy to...