Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Radosław Lisiecki"'
Publikováno v:
Molecules, Vol 29, Iss 13, p 3041 (2024)
The thermal stability of oxyfluorotellurite glass systems, (65-x)TeO2-20ZnF2-12PbO-3Nb2O5-xPr2O3, doped with praseodymium was examined. The different concentrations of praseodymium oxide (x = 0.5 and 2 mol%) were applied to verify the thermal, optica
Externí odkaz:
https://doaj.org/article/8211d064d4b8488bb6f2d5f452210669
Autor:
Bartosz Bondzior, Radosław Lisiecki
Publikováno v:
Applied Sciences, Vol 14, Iss 10, p 4198 (2024)
Germanate tellurite glasses doped with Eu3+ and Tb3+ were synthesized by the conventional melt-quenching method. There is no indication of the energy transfer between dopant ions in this host, but the co-dopants exhibit excellent color purity of 100%
Externí odkaz:
https://doaj.org/article/1b27004c22ec407dba77d1d213461382
Autor:
Karol Lemański, Olha Bezkrovna, Nadiia Rebrova, Radosław Lisiecki, Patrycja Zdeb, Przemysław Jacek Dereń
Publikováno v:
Molecules, Vol 29, Iss 9, p 2084 (2024)
The recent COVID-19 pandemic has made everyone aware of the threat of viruses and the growing number of antibiotic-resistant bacteria. It has become necessary to find new methods to combat these hazards. One tool that could be used is UVC radiation,
Externí odkaz:
https://doaj.org/article/d35c4a9754ac4266a540576d760182b4
Publikováno v:
Materials, Vol 17, Iss 8, p 1771 (2024)
The application of ultraviolet-C light in the field of surface treatment or photodynamic therapy is highly prospective. In this regard, the stable fluorescent silicate SrO-CaO-MgO-SiO2-Pr2O3 glasses able to effectively convert visible excitation on t
Externí odkaz:
https://doaj.org/article/28647b4d3a6244678c43cc7d14212221
Publikováno v:
Materials, Vol 17, Iss 6, p 1410 (2024)
Fluorides have a wide bandgap and therefore, when doped with the appropriate ions, exhibit emissions in the ultraviolet C (UVC) region. Some of them can emit two photons in the visible region for one excitation photon, having a quantum efficiency gre
Externí odkaz:
https://doaj.org/article/7c41950a57724206bc2e862f417f2c9c
Autor:
Adam Zając, Wojciech Sąsiadek, Lucyna Dymińska, Paulina Ropuszyńska-Robak, Jerzy Hanuza, Maciej Ptak, Szymon Smółka, Radosław Lisiecki, Katarzyna Skrzypczak
Publikováno v:
Molecules, Vol 28, Iss 16, p 5987 (2023)
Membranes produced by crosslinking chitosan with magnesium phytate were prepared using highly deacetylated chitosan and its N-carboxymethyl, O-carboxymethyl and N,O-carboxymethyl derivatives. The conditions of the membrane production were described.
Externí odkaz:
https://doaj.org/article/83ca2fb6de8749fb9e4be1210f46c689
Autor:
Bozena Burtan-Gwizdala, Manuela Reben, Jan Cisowski, Radosław Lisiecki, Bożena Jarząbek, Ali Alshehri, Khalid I. Hussein, El Sayed Yousef
Publikováno v:
Materials, Vol 16, Iss 3, p 925 (2023)
The shielding and spectroscopic properties of Pr+3 and Pr3+/Ho3+-codoped tellurite glass were investigated. The intensity parameters (Ω2 = 3.24-, Ω4 = 1.64-, Ω6 = 1.10 × 10−20 cm2) as well as the radiative lifetimes of 3F4 + 5S2 and 5I6 excited
Externí odkaz:
https://doaj.org/article/c901541fea6440658bbad5530f154abb
Publikováno v:
Materials, Vol 15, Iss 21, p 7651 (2022)
Novel ternary fluoro-germano-tellurite (GTS) glasses doped with Er3+ ions with 0.5 mol% and 1.0 mol% were fabricated by a conventional melt and quenching method and investigated using methods of optical spectroscopy. The room-temperature absorption s
Externí odkaz:
https://doaj.org/article/343c41667d1648ab9d957c9f95d3a404
Autor:
Sławomir Cieśla, Radosław Lisiecki, Agnieszka Ławnicka, Bartosz Kudliński, Paulina Ostrowska, Alberto Davì, Massimiliano Veroux, Dawid Murawa
Publikováno v:
Frontiers in Surgery, Vol 8 (2021)
Background: Peritoneal lavage cytology in patients with gastric cancer may correlate with an unfavorable prognosis. This study evaluated the presence of free cancer cells in the peritoneal lavage of a population of patients with gastric cancer and it
Externí odkaz:
https://doaj.org/article/b20f65c99e0249adab822a41427cb2ea
Publikováno v:
Molecules, Vol 27, Iss 3, p 721 (2022)
The structural and spectroscopic properties of a new triazolopyridine derivative (1,2,4-triazolo[4,3-a]pyridin-3-amine) are described in this paper. Its FTIR spectrum was recorded in the 100–4000 cm−1 range and its FT-Raman spectrum in the range
Externí odkaz:
https://doaj.org/article/439ce191c0a24631905eb984a0bd4796