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Statements

Subject Item
n2:RIV%2F60461373%3A22340%2F10%3A00023390%21RIV11-MSM-22340___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
A strong polymeric helical complex of Ag(I) with biotin, a water-soluble vitamin also called vitamin H or B7, has been described in the crystal phase, yet with missing spatial characteristic of its solution structure. In this work, the complexation of D-(+)-biotin with Ag+ in aqueous solution has been studied by means of circular dichroism spectroscopy and mass spectrometry with electrospray ionization in positive mode (MS-ESI+). For comparison, the spectra of the Nujol suspension of studied systems in the solid state were also measured. The results indicate that the Ag(I)?biotin complex has a helical arrangement of the biotin molecules in solution. Our results show that the binding process involves the thioether sulfur atom and ureido carbonyl oxygen atom, while the carboxylate side group is not coordinated with the silver. The MS-ESI experiments have revealed the composite structures of Ag+ with biotin of various constitutions, which represent the products of the polymeric helical Ag(I)?biotin compl A strong polymeric helical complex of Ag(I) with biotin, a water-soluble vitamin also called vitamin H or B7, has been described in the crystal phase, yet with missing spatial characteristic of its solution structure. In this work, the complexation of D-(+)-biotin with Ag+ in aqueous solution has been studied by means of circular dichroism spectroscopy and mass spectrometry with electrospray ionization in positive mode (MS-ESI+). For comparison, the spectra of the Nujol suspension of studied systems in the solid state were also measured. The results indicate that the Ag(I)?biotin complex has a helical arrangement of the biotin molecules in solution. Our results show that the binding process involves the thioether sulfur atom and ureido carbonyl oxygen atom, while the carboxylate side group is not coordinated with the silver. The MS-ESI experiments have revealed the composite structures of Ag+ with biotin of various constitutions, which represent the products of the polymeric helical Ag(I)?biotin compl
dcterms:title
Association of biotin with silver (I) in solution: a circular dichroism study Association of biotin with silver (I) in solution: a circular dichroism study
skos:prefLabel
Association of biotin with silver (I) in solution: a circular dichroism study Association of biotin with silver (I) in solution: a circular dichroism study
skos:notation
RIV/60461373:22340/10:00023390!RIV11-MSM-22340___
n3:aktivita
n12:Z n12:P
n3:aktivity
P(IAA400550702), Z(MSM6046137307)
n3:cisloPeriodika
15
n3:dodaniDat
n6:2011
n3:domaciTvurceVysledku
n7:6564844 n7:3087115 n7:1422251
n3:druhVysledku
n16:J
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
247958
n3:idVysledku
RIV/60461373:22340/10:00023390
n3:jazykVysledku
n17:eng
n3:klicovaSlova
biotin; circular dichroism; mass spectroscopy; spatial structure; nujol suspension; silver complex
n3:klicoveSlovo
n4:nujol%20suspension n4:biotin n4:spatial%20structure n4:mass%20spectroscopy n4:circular%20dichroism n4:silver%20complex
n3:kodStatuVydavatele
IE - Irsko
n3:kontrolniKodProRIV
[BC7E27B8567B]
n3:nazevZdroje
Tetrahedron Asymmetry
n3:obor
n8:CB
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n11:IAA400550702
n3:rokUplatneniVysledku
n6:2010
n3:svazekPeriodika
21
n3:tvurceVysledku
Sýkora, David Goncharova, Iryna Urbanová, Marie
n3:wos
000281626300018
n3:zamer
n14:MSM6046137307
s:issn
0957-4166
s:numberOfPages
5
n10:organizacniJednotka
22340