Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Konrad Wojtaszek"'
Autor:
Marek Wojnicki, Konrad Wojtaszek, Tomasz Tokarski, Edit Csapó, Joanna Knutelska, Marek Bednarski, Alicja Skórkowska, Lucyna Pomierny-Chamioło, Magdalena Kotańska
Publikováno v:
Molecules, Vol 29, Iss 17, p 4075 (2024)
The present study explores the synthesis and bio-safety evaluation of gadolinium-doped carbon quantum dots (GCQDs) as a potential dual-contrast agent for diagnostic imaging. GCQDs exhibit both fluorescent and magnetic properties, making them suitable
Externí odkaz:
https://doaj.org/article/2d0785f77022452eb83f58b4a3de95ef
Publikováno v:
Metals, Vol 14, Iss 7, p 790 (2024)
In this study we synthesized and characterized Ni/AC (Activated Carbon) systems. AC was obtained through pyrolysis of golden rod’s dried biomass. Ni nanoparticles were deposited on AC’s surface using a wet impregnation method from a nickel nitrat
Externí odkaz:
https://doaj.org/article/167b7ad964d24cf09e441f80fcc900b7
Autor:
Magdalena Kotańska, Konrad Wojtaszek, Monika Kubacka, Marek Bednarski, Noemi Nicosia, Marek Wojnicki
Publikováno v:
Antioxidants, Vol 13, Iss 1, p 13 (2023)
Caramel, defined as a coloring agent and as an antioxidant, is used in several kinds of food products and is consumed by many people in different amounts. In our research we showed that the caramelization of sucrose under special conditions leads to
Externí odkaz:
https://doaj.org/article/073db439cb5e4e44a56f18160cd91188
Autor:
Konrad Wojtaszek, Tomasz Tokarski, Dawid Kutyła, Karolina Kołczyk-Siedlecka, Piotr Żabiński, Edit Csapó, Robert P. Socha, Marc Escribà-Gelonch, Volker Hessel, Marek Wojnicki
Publikováno v:
Metals, Vol 13, Iss 5, p 882 (2023)
The paper presents the research results on synthesizing silver nanoparticles in aqueous solutions and their extraction into the organic phase. Studies have shown that it is best to perform the extraction process using n-hexane > cyclohexane > toluene
Externí odkaz:
https://doaj.org/article/d3ee13273934437c8cd10a2c8cbf2c06
Autor:
Tomasz Michałek, Konrad Wojtaszek, Stanisław Małecki, Kamil Kornaus, Szymon Wandor, Julia Druciarek, Krzysztof Fitzner, Marek Wojnicki
Publikováno v:
C, Vol 9, Iss 2, p 46 (2023)
This paper describes a single-stage synthesis process for activated carbon using cherry seeds. The influences of the carbonization temperature and the time were investigated. Using the BET method, the surface area of the obtained activated carbons wa
Externí odkaz:
https://doaj.org/article/59c8399e0e79480cb1002bb952d9b05f
Autor:
Konrad Wojtaszek, Filip Cebula, Bogdan Rutkowski, Magdalena Wytrwal, Edit Csapó, Marek Wojnicki
Publikováno v:
Materials, Vol 16, Iss 2, p 659 (2023)
This publication presents the synthesis of core–shell nanoparticles, where the core was Ni, and the shell was a Ag–Ni nano alloy. The synthesis was based on the reduction of Ni and Ag ions with sodium borohydride in the presence of trisodium citr
Externí odkaz:
https://doaj.org/article/fd3a852f104a4690a3bf0a5d1dd0f743
Autor:
Hasan Shabbir, Konrad Wojtaszek, Bogdan Rutkowski, Edit Csapó, Marek Bednarski, Anita Adamiec, Monika Głuch-Lutwin, Barbara Mordyl, Julia Druciarek, Magdalena Kotańska, Piotr Ozga, Marek Wojnicki
Publikováno v:
Molecules, Vol 27, Iss 24, p 8728 (2022)
Carbon dots (CDs) are carbon-based zero-dimensional nanomaterials that can be prepared from a number of organic precursors. In this research, they are prepared using fat-free UHT cow milk through the hydrothermal method. FTIR analysis shows C=O and C
Externí odkaz:
https://doaj.org/article/d4435f8bfd52422db790d271cb548e54
Autor:
Konrad Wojtaszek, Katarzyna Skibińska, Filip Cebula, Tomasz Tokarski, Marc Escribà-Gelonch, Volker Hessel, Marek Wojnicki
Publikováno v:
Metals, Vol 12, Iss 11, p 1819 (2022)
The work reports the synthesis and characterization of ternary nanoalloy catalysts of silver, bismuth, and rhenium from alkaline solutions containing L–cysteine as a complexing agent and sodium borohydride as a reducing agent. UV–Vis spectra and
Externí odkaz:
https://doaj.org/article/c4bc58dad903451aaf2abaff7f115450
Autor:
Marek Wojnicki, Andrzej Krawontka, Konrad Wojtaszek, Katarzyna Skibińska, Edit Csapó, Zbigniew Pędzich, Agnieszka Podborska, Przemysław Kwolek
Publikováno v:
Molecules, Vol 26, Iss 13, p 3862 (2021)
In the paper, the mechanism of the process of the Rh(III) ions adsorption on activated carbon ORGANOSORB 10—AA was investigated. It was shown, that the process is reversible, i.e., stripping of Rh(III) ions from activated carbon to the solution is
Externí odkaz:
https://doaj.org/article/fc1794c80e2748a5a552a547047481e2
Autor:
Filip Cebula, Konrad Wojtaszek, Hasan Shabbir, Anna Kula, Zbigniew Pędzich, Kamil Kornaus, Stanisław Małecki, Karolina Kołczyk-Siedlecka, Robert P. Socha, Marc Escribà-Gelonch, Katarzyna Rogóż, Michael Goodsite, Volker Hessel, Marek Wojnicki
This paper presents the process of synthesis of copper powders obtained by the pyrometallurgical method without the participation of the liquid phase. This method is based on the simultaneous decomposition and reduction of copper (II) carbonate. Hydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c84c5927ba4d749ec9c1c7777f35929c
https://hdl.handle.net/10459.1/84233
https://hdl.handle.net/10459.1/84233