Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Ivayla Pantcheva"'
Autor:
Ivayla Pantcheva, Nikolay Petkov, Elzhana Encheva, Stiliyan Kolev, Svetlana Simova, Aleksandar Tsanev, Petar Dorkov, Angel Ugrinov
Publikováno v:
Molecules, Vol 29, Iss 13, p 3106 (2024)
The commercial veterinary antibiotic sodium monensinate (MonNa) binds mercury(II) or zinc(II) cations as thiocyanate [Hg(MonNa)2(SCN)2] (1) or isothiocyanate [Zn(MonNa)2(NCS)2] (2) neutral coordination compounds. The structure and physicochemical pro
Externí odkaz:
https://doaj.org/article/b0fe1d10816d4c5094cba95f381912bf
Autor:
Nikolay Petkov, Alia Tadjer, Svetlana Simova, Zara Cherkezova-Zheleva, Daniela Paneva, Radostina Stoyanova, Rositsa Kukeva, Petar Dorkov, Ivayla Pantcheva
Publikováno v:
Inorganics, Vol 12, Iss 4, p 114 (2024)
In the present study, we report the solid-state isolation and structural characterization of novel iron(III) complexes of the veterinary antibiotic monensin. Monensic acid (MonH × H2O) forms a dinuclear complex of composition with FeCl3 [FeCl(Mon)2]
Externí odkaz:
https://doaj.org/article/b6abc4238ec6437e99711d5c153fc585
Experimental and DFT Study of Monensinate and Salinomycinate Complexes Containing {Fe3(µ3–O)}7+ Core
Autor:
Nikolay Petkov, Alia Tadjer, Elzhana Encheva, Zara Cherkezova-Zheleva, Daniela Paneva, Radostina Stoyanova, Rositsa Kukeva, Petar Dorkov, Ivayla Pantcheva
Publikováno v:
Molecules, Vol 29, Iss 2, p 364 (2024)
Two trinuclear oxo-centred iron(III) coordination compounds of monensic and salinomycinic acids (HL) were synthesized and their spectral properties were studied using physicochemical/thermal methods (FT–IR, TG–DTA, TG–MS, EPR, Mössbauer spectr
Externí odkaz:
https://doaj.org/article/3694dccbad9a4714b8a6687340278f16
Publikováno v:
Inorganics, Vol 11, Iss 8, p 334 (2023)
The chirality of the polyether ionophore monensic acid A can be successfully used to study its coordination ability in solution. A complementary approach to gain new insights into the complexation chemistry of the antibiotic (studied previously by ci
Externí odkaz:
https://doaj.org/article/c45e57f04a5b45668bb358c41bd2ef81
Autor:
Nikolay Petkov, Ivayla Pantcheva, Anela Ivanova, Radostina Stoyanova, Rositsa Kukeva, Radostina Alexandrova, Abedullkader Abudalleh, Petar Dorkov
Publikováno v:
Molecules, Vol 28, Iss 12, p 4676 (2023)
The largely uncharted complexation chemistry of the veterinary polyether ionophores, monensic and salinomycinic acids (HL) with metal ions of type M4+ and the known antiproliferative potential of antibiotics has provoked our interest in exploring the
Externí odkaz:
https://doaj.org/article/9e4f41c149354142aacf9804db5184da
Autor:
Irena Pashkunova-Martic, Rositsa Kukeva, Radostina Stoyanova, Ivayla Pantcheva, Peter Dorkov, Joachim Friske, Michaela Hejl, Michael Jakupec, Mariam Hohagen, Anton Legin, Werner Lubitz, Bernhard K. Keppler, Thomas H. Helbich, Juliana Ivanova
Publikováno v:
Pharmaceutics, Vol 14, Iss 11, p 2319 (2022)
Combining therapeutic with diagnostic agents (theranostics) can revolutionize the course of malignant diseases. Chemotherapy, hyperthermia, or radiation are used together with diagnostic methods such as magnetic resonance imaging (MRI). In contrast t
Externí odkaz:
https://doaj.org/article/e50f045701ca45629fc7bdedbd6ad422
Autor:
Ivayla Pantcheva, Radoslava Stamboliyska, Nikolay Petkov, Alia Tadjer, Svetlana Simova, Radostina Stoyanova, Rositza Kukeva, Petar Dorkov
Publikováno v:
Molecules, Vol 27, Iss 12, p 3899 (2022)
The veterinary 16-membered macrolide antibiotics tylosin (HTyl, 1a) and tilmicosin (HTilm, 1b) react with copper(II) ions in acetone at metal-to-ligand molar ratio of 1:2 to form blue (2) or green (3) metal(II) coordination species, containing nitrat
Externí odkaz:
https://doaj.org/article/a3d8248ea88e4149b702f3895306ae7a
Publikováno v:
Molecules, Vol 27, Iss 2, p 532 (2022)
The affinity of the polyether ionophore salinomycin to bind IA/IB metal ions was accessed using the Gibbs free energy of the competition reaction between SalNa (taken as a reference) and its rival ions: [M+-solution] + [SalNa] → [SalM] + [Na+-solut
Externí odkaz:
https://doaj.org/article/6d455db4772e408886bbb2104eed0291
Autor:
Dorkov, Nikolay Petkov, Ivayla Pantcheva, Anela Ivanova, Radostina Stoyanova, Rositsa Kukeva, Radostina Alexandrova, Abedullkader Abudalleh, Petar
Publikováno v:
Molecules; Volume 28; Issue 12; Pages: 4676
The largely uncharted complexation chemistry of the veterinary polyether ionophores, monensic and salinomycinic acids (HL) with metal ions of type M4+ and the known antiproliferative potential of antibiotics has provoked our interest in exploring the
Publikováno v:
Proceedings of the Bulgarian Academy of Sciences. 75:519-526
The polyether ionophorous antibiotic monensic acid A (MonH.H2O) reacts with copper(II) ions in the presence of a weak base (Et4NOH) to form mononuclear coordination species of composition [Cu(Mon)2(H2O)2]. The complexation process in solution was stu