Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Romulus Tetean"'
Publikováno v:
Magnetochemistry, Vol 10, Iss 8, p 53 (2024)
The magnetic properties, band structure results, and magnetocaloric effect of GdCo1.8M0.2 with M = Fe, Mn, Cu, and Al are reported. The band structure calculations demonstrate that all the samples have a ferrimagnetically ordered ground state, in per
Externí odkaz:
https://doaj.org/article/a8e1167aa4b34bfaaece8e1d7b73cdfb
Autor:
Roxana-Alina One, Sever Mican, Angela-Georgiana Cimpoeșu, Marius Joldos, Romulus Tetean, Coriolan Viorel Tiușan
Publikováno v:
Nanomaterials, Vol 12, Iss 24, p 4411 (2022)
Our study addresses the problematics of magnetic skyrmions, nanometer-size vortex-like swirling topological defects, broadly studied today for applications in classic, neuromorphic and quantum information technologies. We tackle some challenging issu
Externí odkaz:
https://doaj.org/article/6207e4d7623e401896ec625773f586e1
Autor:
Adam Szatmari, Rares Bortnic, Gabriela Souca, Razvan Hirian, Lucian Barbu-Tudoran, Fran Nekvapil, Cristian Iacovita, Emil Burzo, Roxana Dudric, Romulus Tetean
Publikováno v:
Nanomaterials, Vol 13, Iss 1, p 189 (2022)
Co1−xZnxFe2O4 nanoparticles (0 ≤ x ≤ 1) have been synthesized via a green sol–gel combustion method. The prepared samples were studied using X-ray diffraction measurements (XRD), transmission electron microscopy (TEM), Raman, and magnetic mea
Externí odkaz:
https://doaj.org/article/64f420fd1ecf4070aa872b63f32190cd
Autor:
Anca Onaciu, Valentin Toma, Cristian Moldovan, Adrian Bogdan Țigu, Diana Cenariu, Carina Culic, Rareș Mario Borșa, Luca David, Gabriela Fabiola Știufiuc, Romulus Tetean, Ciprian Tomuleasa, Rareș Ionuț Știufiuc
Publikováno v:
Sensors, Vol 23, Iss 1, p 346 (2022)
DNA methylation is a crucial epigenetic hallmark of cancer development but the experimental methods able to prove nanoscale modifications are very scarce. Over time, Raman and its counterpart, surface-enhanced Raman scattering (SERS), became one of t
Externí odkaz:
https://doaj.org/article/4976cc5ca59247adbd76adc8d5964a76
Autor:
Emil Burzo, Romulus Tetean
Publikováno v:
Nanomaterials, Vol 12, Iss 10, p 1782 (2022)
The magnetic properties of nanocrystalline MxFe3−xO4 ferrites with M=Fe, Co, and Zn were investigated. The data support a core–shell model, where the core is ferrimagnetically ordered, and the shell shows a spin glass type behavior. The reduced m
Externí odkaz:
https://doaj.org/article/e85c527e06304fe68d29caa47bd38ab3
Autor:
Rareș Bortnic, Adam Szatmari, Gabriela Souca, Răzvan Hirian, Roxana Dudric, Lucian Barbu-Tudoran, Valentin Toma, Rareș Știufiuc, Romulus Tetean, Emil Burzo
Publikováno v:
Nanomaterials, Vol 12, Iss 6, p 942 (2022)
We report the successful synthesis and a complete magnetic characterization of CoFe2O4@SiO2@Au magnetoplasmonic nanoparticles. The CoFe2O4 magnetic nanoparticles were prepared using the hydrothermal method. A subsequent SiO2 shell followed by a plasm
Externí odkaz:
https://doaj.org/article/7aa8d64b8ca849c1b5ec407acf43d4a9
Autor:
Cristian Iacoviță, Ionel Fizeșan, Stefan Nitica, Adrian Florea, Lucian Barbu-Tudoran, Roxana Dudric, Anca Pop, Nicoleta Vedeanu, Ovidiu Crisan, Romulus Tetean, Felicia Loghin, Constantin Mihai Lucaciu
Publikováno v:
Pharmaceutics, Vol 13, Iss 12, p 2026 (2021)
Increasing the biocompatibility, cellular uptake, and magnetic heating performance of ferromagnetic iron-oxide magnetic nanoparticles (F-MNPs) is clearly required to efficiently induce apoptosis of cancer cells by magnetic hyperthermia (MH). Thus, F-
Externí odkaz:
https://doaj.org/article/27b10d20070c47c58ae5efd6b98d7bfd
Autor:
Gabriela Fabiola Știufiuc, Valentin Toma, Mihail Buse, Radu Mărginean, Gabriela Morar-Bolba, Bogdan Culic, Romulus Tetean, Nicolae Leopold, Ioana Pavel, Constantin Mihai Lucaciu, Rareș Ionuț Știufiuc
Publikováno v:
Nanomaterials, Vol 10, Iss 6, p 1212 (2020)
Surface enhanced Raman spectroscopy (SERS) represents a promising technique in providing specific molecular information that could have a major impact in biomedical applications, such as early cancer detection. SERS requires the presence of a suitabl
Externí odkaz:
https://doaj.org/article/61a9232c706b465188160b13a5aa0414
Autor:
Cristian Iacovita, Gabriela Fabiola Stiufiuc, Roxana Dudric, Nicoleta Vedeanu, Romulus Tetean, Rares Ionut Stiufiuc, Constantin Mihai Lucaciu
Publikováno v:
Magnetochemistry, Vol 6, Iss 2, p 23 (2020)
Spinel ferrite nanoparticles represent a class of magnetic nanoparticles (MNPs) with enormous potential in magnetic hyperthermia. In this study, we investigated the magnetic and heating properties of spinel soft NiFe2O4, MnFe2O4, and hard CoFe2O4 MNP
Externí odkaz:
https://doaj.org/article/c4951ed8e4f84080a453ab1a8f15fdd7
Autor:
Cristian Iacovita, Ionel Fizeșan, Anca Pop, Lavinia Scorus, Roxana Dudric, Gabriela Stiufiuc, Nicoleta Vedeanu, Romulus Tetean, Felicia Loghin, Rares Stiufiuc, Constantin Mihai Lucaciu
Publikováno v:
Pharmaceutics, Vol 12, Iss 5, p 424 (2020)
We report the synthesis of magnetite nanoparticles (IOMNPs) using the polyol method performed at elevated temperature (300 °C) and high pressure. The ferromagnetic polyhedral IOMNPs exhibited high saturation magnetizations at room temperature (83 em
Externí odkaz:
https://doaj.org/article/81cee20c5d1842f68dcc187021e8fe7d