Dominika Pawcenis

Dominika Pawcenis
Jagiellonian University | UJ · Faculty of Chemistry

Doctor of Philosophy

About

23
Publications
3,316
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
293
Citations
Citations since 2016
16 Research Items
281 Citations
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060

Publications

Publications (23)
Article
Full-text available
Nanocelluloses are the subject of much interest on the account of their mechanical properties, high surface area, porosity, etc. Typically, sulfuric acid is used to produce cellulose nanocrystals with high aspect ratio and dispersibility in water suspensions. However, hydrolysis in sulfuric acid leads to cellulose esterification, which has some dra...
Article
Full-text available
In this work, platinum nanoparticles (PtNPs) were synthesized by a modified polyol process using TEMPO-oxidized nanocellulose (TOCN) as a stabilizing and co-reducing agent. Different ratios of TOCN nanocellulose to Pt⁴⁺ ions were studied to establish the optimum stabilizing effect of PtNPs. The effect of different pH of aqueous TOCN suspensions on...
Article
Tailoring surface properties by layer-by-layer (LBL) deposition directed on the construction of complex multilayer coatings with nanoscale precision enables the development of novel structures and devices with desired functional properties (i.e., osseointegration, bactericidal activity, biocorrosion protection). Herein, electrostatic self-assembly...
Article
Małachowska, E.; Pawcenis, D.; Da ´nczak, J.; Paczkowska, J.; Przybysz, K. Paper Ageing: The Effect of Paper Chemical Composition on Hydrolysis and Oxidation. Polymers 2021, 13, 1029. https://doi.org/10.3390/polym13071029
Article
Sixteenth-century Arrases from the Krakow Royal Castle constitute a Polish national cultural heritage; hence, they should be under special protection. The storage of historic objects at strict temperature and humidity conditions is fundamental for their protection against microorganisms. However, sometimes active preservation must be applied to dis...
Article
This study focuses on the temporal stability of insulation paper used in power transformers and intends to provide reliable and comprehensive estimators for the assessment of paper degradation state. To achieve the objectives artificially aged model papers were investigated along with power transformers insulation papers, by means of Size Exclusion...
Article
The aim of this study was to examine efficacy of different fractions of TEMPO-oxidized cellulose nanocrystals (TOCNs) as a reducing and capping agent of silver nanoparticles (AgNPs). Silver nanoparticles were prepared by thermal treatment of AgNO 3 in aqueous suspensions of TOCN fractions. Three different nanocomposite materials based on different...
Article
A combined study of crystallinity index (CI), degree of polymerisation (DP) and thermal stability of cellulose was carried out for monitoring the effect of ball-milling. DP and CI are two fundamental quantities that describe the physico-chemical behaviour of cellulose. Milling is a common strategy to reduce cellulose crystallinity. In this work, fo...
Article
In this work we have studied the terahertz spectra of modern artificially aged and ancient paper samples using terahertz time-domain spectroscopy. Hydrothermal artificial aging was performed in closed and open reactors. Ancient paper samples were produced during the 15th century in European countries. The main aim of the work is the quantitative as...
Article
Full-text available
The study is devoted to manufacturing and characterising a new paper material with antimicrobial properties, as an alternative to paper containing silver nanoparticles (NPs) which are claimed to be harmful to the ecosphere. In place of silver NPs, the new material contains faujasite mineral (from the faujasite group) exchanged with silver cations w...
Patent
Przedmiotem wynalazku jest materiał nanokompozytowy, sposób jego wytwarzania oraz zastosowanie. Bardziej szczegółowo rozwiązanie dotyczy: opakowaniowego materiału nanokompozytowego.
Article
Full-text available
Ancient papyri are a written heritage of culture that flourished more than 3000 years ago in Egypt. One of the most significant collections in the world is housed in the Egyptian Museum and Papyrus Collection in Berlin, from where the samples for our investigation come. The papyrologists, curators and conservators of such collections search intense...
Article
Mapping the morphological and nano-mechanical properties of cellulose fibers within paper sheets or textile products at the nano-scale level by using atomic force microscopy is a challenging task due to the huge surface level variation of these materials. However this task is fundamental for applications in forensic or cultural heritage sciences an...
Article
Full-text available
Size exclusion chromatography (SEC), especially coupled with multiple angle laser light scattering detector (MALLS) is a powerful tool in diagnostics of deterioration of historic and art objects to evaluate their condition. In this paper, SEC–UV–MALLS–DRI technique was applied to study degradation of silk fibroin samples (Bombyx mori) artificially...
Article
The results on the changes of molar mass distributions and average molar masses in Bombyx mori fibroin with use of size exclusion chromatography (SEC) and viscometry, respectively, are presented in terms of the determination of Mark–Houwink–Sakurada coefficients, which are lacking in the literature. SEC was applied in configuration of light scatter...
Article
Effect of heating of the potato starch on damages of its structure was investigated by quantitative electron paramagnetic resonance (EPR) spectroscopy, X-ray diffraction and determination of the molecular weight distribution. The measurements were performed in the temperature range commonly used for starch modifications optimizing properties import...
Article
Due to their practical importance and widespread application in the studies of polymer degradation, the analytical methods: viscometry, colour and mass change, pH, mechanical strength were selected in this work so as to provide a macroscopic view of silk condition. The aim of the current work is to critically discuss the results obtained by these m...
Patent
A nanocomposite material with antimicrobial properties, based on cellulose packed with a mineral filler (zeolite) exchanged with silver, characterised in that the mineral filler is made up of Y-type zeolites, while silver occurs in a form bound with the zeolite matrix in the form of cations and, optionally, nanoparticles of reduced silver, as well...
Article
Infrared spectroscopy (FTIR) is a commonly available tool in laboratories dealing with both degradation of materials and conservation of art objects to evaluate their condition. In this paper FTIR was engaged to study degradation of fibroin included in silk samples (Bombyx mori) artificially aged at various conditions (oxygen, water vapor and volat...
Article
Full-text available
A direct goal of this paper was to improve the methods of sample preparation and separation for analyses of fibroin polypeptide with the use of size exclusion chromatography (SEC). The motivation for the study arises from our interest in natural polymers included in historic textile and paper artifacts, and is a logical response to the urgent need...
Article
Influence of starch modifications on the process of thermal generation of radicals in starch of different botanical origin was studied using electron paramagnetic spectroscopy. Potato, corn and spelt starches were subjected to chemical modifications: oxidation and phosphorylation. Samples of native and modified starches were thermally treated at 48...

Network

Cited By

Projects

Projects (3)
Project
The aim of the project is the synthesis and characterisation of hybrid material based on modified nanocellulose containing immobilized nanoparticles of precious and transition metals. Nanocellulose will be subjected to functionalization towards non-linear topology.
Archived project
The time of Sigismund II Augustus marks the period of greatness of Poland in terms of affluence of both tangible and non-tangible cultural assets. The most important material testimony to the glory of those times is the collection of tapestries which Sigismund II Augustus ordered to be made in Brussels in the years 1550-1560. Because of its remarkable artistic value and history, it constitutes an invaluable tangible piece of evidence to European culture and heritage of the time. Scientific side of the project involved interdisciplinary research on the silk and cotton historic materials. The multi-faceted physical-chemical research was performed into fibre degradation, and identification of colorants forming this extraordinary collection of textiles. Another important thing was to perform fadeometer measurements, i.e. tests of the resistance of colorants to light, which will make it possible to determine the optimal conditions to keep the collection in good shape. The research activities also involved microbiological tests and an evaluation of the utility of innovative low-temperature-plasma-based disinfection methods in conservation.