Piotr Piszczek

ORCID: 0000-0002-0768-8165
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About
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Research Areas
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Polyoxometalates: Synthesis and Applications
  • Bone Tissue Engineering Materials
  • Flowering Plant Growth and Cultivation
  • Agriculture, Plant Science, Crop Management
  • Molecular Junctions and Nanostructures
  • Thermal and Kinetic Analysis
  • Semiconductor materials and devices
  • Catalysis and Oxidation Reactions
  • Organometallic Complex Synthesis and Catalysis
  • Botany and Plant Ecology Studies
  • Catalytic Processes in Materials Science
  • Titanium Alloys Microstructure and Properties
  • Copper Interconnects and Reliability
  • TiO2 Photocatalysis and Solar Cells
  • Metal complexes synthesis and properties
  • Nanoparticles: synthesis and applications
  • Laser-Ablation Synthesis of Nanoparticles
  • Orthopaedic implants and arthroplasty
  • Vanadium and Halogenation Chemistry
  • Mass Spectrometry Techniques and Applications
  • Marine Biology and Environmental Chemistry
  • Inorganic and Organometallic Chemistry
  • Diatoms and Algae Research

Nicolaus Copernicus University
2016-2025

University of Wrocław
2024

Jagiellonian University
2023

Bydgoszcz University of Science and Technology
2008-2020

AGH University of Krakow
2020

This study explores poly(methyl methacrylate) (PMMA)-based composites as potential alternatives to conventional TiO2-based photocatalysts. Specifically, it examines PMMA enriched with oxo–titanium(IV) complexes, [Ti8O2(OiPr)20(man)4] (1), [Ti4O(OiPr)10(O3C14H8)2] (2), and [Ti6O4(OiPr)2(O3C14H8)4(O2CEt)6] (3), alongside ruthenium(III) K[Ru(Hedta)Cl]∙2H2O (4) [Ru(pic)3]·H2O (5). We assessed the physicochemical, adsorption, photocatalytic properties of these structural analyses (Raman...

10.3390/app15041679 article EN cc-by Applied Sciences 2025-02-07

The global threat of numerous infectious diseases creates a great need to develop new diagnostic methods facilitate the appropriate prescription antimicrobial therapy. More recently, possibility using bacterial lipidome analysis via laser desorption/ionization mass spectrometry (LDI-MS) as useful tool for microbial identification and rapid drug susceptibility has received particular attention because lipids are present in large quantities can be easily extracted similar ribosomal proteins....

10.3390/antibiotics12050874 article EN cc-by Antibiotics 2023-05-08

The highly ordered titanium dioxide nanotube coatings were produced under various electrochemical conditions on the surface of foil. anodization voltage changes proved to be a main factor which directly affects morphology, structure, and wettability. Moreover we have noticed significant dependence between size crystallinity TiO2 layers adhesion/proliferation fibroblasts antimicrobial properties. Cellular functionality investigated for up 3 days in culture using cell viability assay scanning...

10.1007/s10856-015-5495-2 article EN cc-by Journal of Materials Science Materials in Medicine 2015-03-19

Titania nanotube (TNT) coatings were produced using low-potential anodic oxidation of Ti6Al4V substrates in the potential range 3–20 V. They analysed by X-ray diffraction (XRD), Raman spectroscopy, photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). The wettability was estimated measuring contact angle when applying water droplets. bioactivity TNT established on basis biointegration assay (L929 murine fibroblasts adhesion proliferation) antibacterial tests against...

10.3390/nano7080197 article EN cc-by Nanomaterials 2017-07-26

An increasing interest in the fabrication of implants made titanium and its alloys results from their capacity to be integrated into bone system. This integration is facilitated by different modifications implant surface. Here, we assessed bioactivity amorphous titania nanoporous nanotubular coatings (TNTs), produced electrochemical oxidation Ti6Al4V orthopedic implants’ The chemical composition microstructure TNT layers was analyzed X-ray photoelectron spectroscopy (XPS) diffraction (XRD)....

10.3390/jcm9020342 article EN Journal of Clinical Medicine 2020-01-25

Bioactivity investigations of titania nanotube (TNT) coatings enriched with silver nanograins (TNT/Ag) have been carried out. TNT/Ag nanocomposite materials were produced by combining the electrochemical anodization and chemical vapor deposition methods. Fabricated characterized scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy. The release effect ions from composites immersed in bodily fluids, has studied using inductively coupled plasma mass...

10.3390/nano7090274 article EN cc-by Nanomaterials 2017-09-15

C2F5COOAgPMe3 (1) and C2F5COOAg (2) have been used as precursors for the CVD of silver layers in temperature range 493–623 K. The thin films obtained were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), tunneling electrochemical (STEM), photoelectron spectroscopy (XPS), variable infrared (IR) measurements. SEM images Ag grown from 2 exhibited a surface with grain size 0.4–1.5 μm, whereas 1 was ∼0.1 μm. This confirmed by STEM studies. better stability vapor...

10.1002/1521-3862(200105)7:3<111::aid-cvde111>3.0.co;2-v article EN Chemical Vapor Deposition 2001-05-01

Crystalline materials have been synthesized in reactions of titanium(IV) tetraisobutoxide with branched organic acids (HOOCR′, R′ = CMe2Et, tBu, CH2tBu) the molar ratio 1 : at room temperature under Ar atmosphere. Particular attention has paid to structural and spectral characterization metastable intermediate complexes general formula [Ti7O9(OiBu)4(HOiBu)(OOCCMe2Et)6]2 (1) [Ti6O5(OiBu)6(OOCtBu)8] (3), their conversion towards more structurally stable compounds [Ti6O6(OiBu)6(OOCC(Me)2Et)6]...

10.1039/c2dt12338j article EN Dalton Transactions 2012-01-01

Plasma enhanced atomic layer deposition (PEALD) of silver nanoparticles on the surface 1-D titania coatings, such as nanotubes (TNT) and nanoneedles (TNN), has been carried out. The formation TNT TNN layers enriched with dispersed particles strictly defined sizes estimation their bioactivity was aim our investigations. structure morphology produced materials were determined using X-ray photoelectron spectroscopy (XPS) scanning electron miscroscopy (SEM). Their potential usefulness in...

10.3390/nano7070193 article EN cc-by Nanomaterials 2017-07-24

For the first time we report structural conversion processes of hexanuclear μ-oxo-Ti(IV) complexes into tetranuclear ones. Single-crystal X-ray diffraction studies reveal that metastable μ-oxo ([Ti6O6(O(t)Bu)(O2CR')6]) are formed in stage reactions between [Ti(O(t)Bu)4] and branched carboxylic acids R'COOH (R' = C(Me)2Et, CH2(t)Bu, (t)Bu). In next they convert formula [Ti4O4(O(t)Bu)4(O2CR')4]. Spectroscopic investigations ((13)C NMR, IR, MS) proved clusters relies on attachment smaller units...

10.1021/ic5002545 article EN Inorganic Chemistry 2014-10-06

Titanium dioxide nanotubes/hydroxyapatite nanocomposites were produced on a titanium alloy (Ti6Al4V/TNT/HA) and studied as biocompatible coating for an implant surface modification. As novel approach this type of nanocomposite fabrication, the atomic layer deposition (ALD) method with extremely low number cycles was used to enrich titania nanotubes (TNT) very thin hydroxyapatite coating. X-ray diffraction (XRD) scanning electron microscopy (SEM) determination structure morphology fabricated...

10.3390/nano9010123 article EN cc-by Nanomaterials 2019-01-19

Dispersed silver nanoparticles (AgNPs) on the surface of titanium alloy (Ti6Al4V) and modified by titania nanotube layer (Ti6Al4V/TNT) substrates were produced chemical vapor deposition method (CVD) using a novel precursor formula [Ag₅(O₂CC₂F₅)₅(H₂O)₃]. The structure volatile properties this compound determined single crystal X-ray diffractometry, variable temperature IR spectrophotometry (VT IR), electron inducted mass spectrometry (EI MS). morphology Ti6Al4V/AgNPs Ti6Al4V/TNT/AgNPs...

10.3390/ijms19123962 article EN International Journal of Molecular Sciences 2018-12-09

Abstract Here we present application of innovative lab-made analytical devices such as plasmonic silver nanostructured substrates and polypyrrole-MOF solid-phase microextraction fibers for metabolic profiling bacteria. For the first time, comprehensive both volatile non-volatile low-molecular weight compounds in eight bacterial strains was carried out with utilization devices. Profiles low molecular metabolites were analyzed similarities differences using principal component analysis,...

10.1038/s41598-024-56107-0 article EN cc-by Scientific Reports 2024-03-06

Morphologically different titania coatings (nanofibers (TNFs), nanoneedles (TNNs), and nanowires (TNWs)) were studied as potential biomedical materials. The abovementioned systems produced in situ on Ti6Al4V substrates via direct oxidation processes using H₂O₂ H₂O₂/CaCl₂ agents, thermal the presence of Ar Ar/H₂O₂. X-ray diffraction Raman spectroscopy have been used to structurally characterize morphology changes titanium alloy surface investigated scanning electron microscopy. bioactivity...

10.3390/nano7040090 article EN cc-by Nanomaterials 2017-04-22

Titanium(IV) oxo-clusters of the general formula (Ti4O2(OiBu)10(O2CR’)2) (R’ = C13H9 (1), PhCl (2), PhNO2 (3)) were studied in order to estimate their potential photoactivity. The structure resulting tetranuclear Ti(IV) oxo-complexes was then determined via single crystal X-ray diffraction, infrared and Raman spectroscopy, electron spin resonance (ESR). An analysis diffuse reflectance spectra (DRS) allowed for assessment band gap values (1)–(3) microcrystalline samples complexes. use...

10.3390/ma11091661 article EN Materials 2018-09-08

The purpose of this paper is to assess the relationship between core architecture titanium(IV)-oxo complexes (TOCs) known as {TiaOb} and their photocatalytic antimicrobial activity. following TOCs: [Ti6O4(OiBu)8(O2C13H9)8] · 2(CH3)2CO (1), [Ti6O6(OiBu)6(O2C13H9)6] (2), (3), [Ti3O(OiPr)8(O2C13H9)2] (4), [Ti4O2(OiBu)10(O2C13H9)2] (5), where -O2C13H9represents 9-fluorene-carboxylate ligands, werestudied investigate thiseffect. structures (1)–(5) were confirmed using single-crystal X-ray...

10.3390/cryst13070998 article EN cc-by Crystals 2023-06-22

Gold is an excellent contact, connect, and wiring material for microelectronic devices,while silver of interest optics, superconducting, magnetic applications. However, the usual precursors these materials are difficult to synthesize handle. This work reports on a new group based complexes AuI AgI with tertiary phosphines perfluorinated carboxylates. It shown that quality films obtained depends length chain as well deposition temperature.

10.1002/(sici)1521-3862(200006)6:3<105::aid-cvde105>3.0.co;2-k article EN Chemical Vapor Deposition 2000-06-01

AgI complexes [Ag(O2CtBu)(PMe3)] (1) and [Ag(O2CtBu)(PEt3)] (2) were used as CVD precursors. Silver films between 30 nm 100 deposited from the above compounds using hot-wall cold-wall techniques on Si(111) Si(100) substrates in temperature range 180-220 °C, under reactor pressure 1–3 mbar. Metallic characterized by X-ray diffraction (XRD), photoelectron spectroscopy (XPS), glow discharge optical emission (GDOES), scanning electron microscopy (SEM), conductivity measurements.

10.1002/cvde.200406323 article EN Chemical Vapor Deposition 2005-01-01
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