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001-es BibID:	bibEBI00009652
Első szerző:	Shigenobu, Yano
Cím:	General synthesis of useful chelating reagents having a sugar unit, 1,3-diamino-2-propyl gb s-D-glucopyranoside and 1,3-diamino-2-propyl alpha-D-mannopyranoside / Y. Shigenobu, Y. Shinohara, K. Mogami, M. Yokoyama, T. Tanase, T. Sakakibara, F. Nishida, K. Mochida, I. Kinoshita, M. Doe, K. Ichihara, Y. Naruta, P. Mehrkhodavandi, P. Buglyó, B. Song, C. Orvig, Y. Mikata
Dátum:	1999
Megjelenés:	Chemistry letters. - 2 (1999), p. 255-256.
További szerzők:	Shinohara, Yoshie Mogami, Kaoro Yokoyama, Mika Tanase, Tomoaki Sakakibara, Toru Nishida, Fumiko Mochida, Kenichi Kinoshita, Isamu Doe, Matsumi Ichihara, Kanako Naruta, Yoshinori Mehrkhodavandi, Parisa Buglyó Péter (1965-) (vegyész) Song, Bin Orvig, Chris Mikata, Yuji
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001-es BibID:	BIBFORM089121
Első szerző:	Song, Bin
Cím:	Acid-base and metal ion-binding properties of diaminopropyl D-glucopyranoside and diaminopropyl D-mannopyranoside compounds in aqueous solution / Bin Song, Parisa Mehrkhodavandi, Péter Buglyó, Yuji Mikata, Yoshie Shinohara, Kazumi Yoneda, Shigenobu Yano, Chris Orvig
Dátum:	2000
ISSN:	0300-9246 1364-5447
Megjegyzések:	For three sugar-appended diamine compounds (1,3-diamino-2-propyl beta-D-glucopyranoside (2-beta-D-Glc-pn), (2S)-2,3-diaminopropyl beta-D-glucopyranoside (1-beta-D-Glc-pn) and 1,3-diamino-2-propyl alpha-D-mannopyranoside (2-alpha-D-Man-pn)), acidity constants and stability constants with Ni2+, Cu2+ and Zn2+ have been measured (I = 0.16 M NaCl, 25 degrees C). The two acidity constants of each of the three sugar-diamines differ by 10(1.65) to 10(3.09), indicating that removal of the proton from HL+ species is more difficult than deprotonation from the fully protonated dication H2L2+. Statistical and polar effects, as well as the formation of an intramolecular hydrogen bond, may cause this increased stability of the HL+ species. The strength of the hydrogen bond and the degree of its formation (percentage) were estimated. The sugar ring has only a small influence on the intramolecular hydrogen bond formation. For the different metal ion-ligand systems, the predominating species in solution are quite different. In the Cu2+-1-beta-D-Glc-pn system, the dominant species are always CuL2+ and CuL22+ in the pH range 4 to 10, where the total ligand concentration is larger than total metal ion concentration. For Ni2+, NiL32+ is also important under these same conditions; however, for Zn2+, the hydrolysis species ZnL2(OH)(+) and ZnL2(OH)(2) predominate in the high pH region. All possible species in the system were included during the calculations, and the corresponding stability constants were determined. The hydrolysis of the metal ions themselves is important in some cases and all possible hydrolysis species were included in the fitting calculation. The stability constant plots log K versus pK yielded straight reference lines for 1,3-diamine or 1,2-diamine ligands, reflecting the complete absence of sugar oxygen atoms in the metal ion coordination. The linkage between the metal ion and the diamine residue depends solely on the basicity of the ligand.
Tárgyszavak:	Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Journal of the Chemical Society. Dalton Transactions. - 2000 : 8 (2000), p. 1325-1333. -
További szerzők:	Mehrkhodavandi, Parisa Buglyó Péter (1965-) (vegyész) Mikata, Yuji Shinohara, Yoshie Yoneda, Kazumi Yano, Shigenobu Orvig, Chris
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM087667
Első szerző:	Storr, Tim
Cím:	Vanadyl-Thiazolidinedione Combination Agents for Diabetes Therapy / Tim Storr, Devin Mitchell, Péter Buglyó, Katherine H. Thompson, Violet G. Yuen, John H. McNeill, Chris Orvig
Dátum:	2003
ISSN:	1043-1802
Tárgyszavak:	Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Bioconjugate Chemistry. - 14 : 1 (2003), p. 212-221. -
További szerzők:	Mitchell, Devin Buglyó Péter (1965-) (vegyész) Thompson, Katherine Yuen, Violet G. McNeill, John H. Orvig, Chris
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	bibEBI00009663
Első szerző:	Ward, Thomas R.
Cím:	An iron-based molecular redox switch as a model for iron release from enterobactin via the salicylate binding mode / Thomas R. Ward, Andreas Lutz, Serge P. Parel, Jürgen Ensling, Philipp Gütlich, Péter Buglyó, Chris Orvig
Dátum:	1999
ISSN:	0020-1669 1520-510X
Megjegyzések:	The iron release mechanism from protonated ferric enterobactin [FeIII(enterobactinH3)] via the salicylate binding mode was probed. For this purpose, a tripodal dodecadentate ligand incorporating three salicylamide (OO) and three bipyridine (NN) binding sites was synthesized as well as iron complexes thereof. It was shown that a ferric ion coordinates selectively to the hard salicylamides and a ferrous ion binds to the softer bipyridines. Upon reduction or oxidation, the iron translocates reversibly and intramolecularly from one site to the other, thus displaying switchlike properties. Both states were characterized by cyclic voltammetry and visible and Mössbauer spectroscopy. The Mössbauer spectrum for the ferric complex is fully consistent with that obtained by Pecoraro et al. upon lowering the pH of [FeIII(enterobactin)]3- solutions (Pecoraro, V. L., et al. J. Am. Chem. Soc.1983, 105, 4617), thus supporting the alternative iron release mechanism from enterobactin via the salicylate binding mode.
Tárgyszavak:	Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Inorganic Chemistry. - 38 : 22 (1999), p. 5007-5017. -
További szerzők:	Lutz, Andreas Parel, Serge P. Ensling, Jürgen Gütlich, Philipp Buglyó Péter (1965-) (vegyész) Orvig, Chris
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat DOI
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