Katarzyna Wojtera

Mrs. Katarzyna Wojtera

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2020 in Nanotechnology Reviews
Verified
Journal Article
Open access
PDF file
KWKatarzyna Wojtera
Katarzyna Wojtera
MWMalgorzata Walczak
Malgorzata Walczak
LPLukasz Pietrzak
Lukasz Pietrzak
JFJustyna Fraczyk
Justyna Fraczyk
Lukasz SzymanskiLukasz Szymanski
Lukasz Szymanski
ASAnna Sobczyk-Guzenda
Anna Sobczyk-Guzenda
Despite the development of pharmacy, there are still incurable diseases for which the medicine has not been found yet. Because many diseases are asymptomatic in their first stage of development, often early detection is the crucial factor in combating them. The article describes the process of synthesis of carbon nanotubes (CNTs) which can be useful in medical diagnostics. CNTs were synthesized by chemical vapor deposition. The obtained material was subjected to functionalization – attaching fluorescent markers. In order to check the usefulness of the obtained structures in diagnostics, their fluorescent properties were examined. The results of fourier transform infrared spectroscopy thermogravimetric analysis and scanning electron microscopy prove that, after proper functionalization, CNTs could be used as fluorescents markers.

11 June 2024 in Electronics
Verified
Journal Article
Open access
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KWKatarzyna Wojtera
Katarzyna Wojtera
LPLukasz Pietrzak
Lukasz Pietrzak
Lukasz SzymanskiLukasz Szymanski
Lukasz Szymanski
Slawomir Jan WiakSlawomir Jan Wiak
Slawomir Jan Wiak
This work raises the hypothesis that it is possible to use ferromagnetic carbon nanotubes filled with iron to hyperthermally destroy cancer cells in a radiofrequency electromagnetic field. This paper describes the synthesis process of iron-filled multi-walled carbon nanotubes (Fe-MWCNTs) and presents a study of their magnetic properties. Fe-MWCNTs were synthesized by catalytic chemical vapor deposition (CCVD). Appropriate functionalization properties of the nanoparticles for biomedical applications were used, and their magnetic properties were studied to determine the heat generation efficiency induced by exposure of the particles to an external electromagnetic field. The response of the samples was measured for 45 min of exposure. The results showed an increase in sample temperature that was proportional to concentration. The results of laboratory work were compared to the simulation using COMSOL software.

5 July 2022 in Electronics
Verified
Journal Article
Open access
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KWKatarzyna Wojtera
Katarzyna Wojtera
KSKrzysztof Smółka
Krzysztof Smółka
Lukasz SzymanskiLukasz Szymanski
Lukasz Szymanski
Slawomir Jan WiakSlawomir Jan Wiak
Slawomir Jan Wiak
AUAleksandra Urbanek
Aleksandra Urbanek
Carbon nanotubes are a material with excellent properties, which result in a wide range of possible applications, from electronics to medicine. This paper presents the investigation of the possibility of Fe-MWCNTs’ application as heating agents for targeted thermal ablation of cancer cells, which could lead to the development of an innovative cancer treatment method. The article describes the process of synthesis of multi-walled carbon nanotubes filled with iron (Fe-MWCNTs) and provides an examination of their magnetic properties. Fe-MWCNTs were synthesized by catalytic chemical vapor deposition (CCVD). Relevant properties of the nanoparticles in terms of functionalization for biomedical applications were exploited and their magnetic properties were investigated to determine the heat generation efficiency induced by exposure of the particles to an external electromagnetic field. The reaction of the samples was measured for 40 min of exposure. The results showed an increase in sample temperature that was proportional to the concentration.

14 May 2025
Verified
Conference Paper
Open access
PDF file
KWKatarzyna Wojtera
Katarzyna Wojtera
KSKrzysztof Smółka
Krzysztof Smółka
Lukasz SzymanskiLukasz Szymanski
Lukasz Szymanski
Carbon nanotubes possess remarkable properties, rendering them applicable across various fields, including medicine, particularly in hyperthermia treatments when filled with ferromagnetic material. This study focuses on refining the synthesis process of iron-filled multi-walled carbon nanotubes (Fe-MWCNTs) to produce high-purity nanocontainers with elevated iron content. Fe-MWCNTs were synthesized via catalytic chemical vapor deposition (CCVD), with temperature identified as a crucial determinant of synthesis efficiency. The paper also outlines the characterization of the resultant material. To gain insights into the underlying phenomena, computer simulations were conducted using COMSOL software.