Počet záznamů: 1
Design, synthesis and stimuli responsive gelation of novel stigmasterol-amino acid conjugates
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SYSNO ASEP 0365267 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Design, synthesis and stimuli responsive gelation of novel stigmasterol-amino acid conjugates Tvůrce(i) Svobodová, Hana (UEB-Q)
Nonappa, J. (FI)
Wimmer, Zdeněk (UEB-Q) RID, ORCID
Kolehmainen, E. (FI)Zdroj.dok. Journal of Colloid and Interface Science. - : Elsevier - ISSN 0021-9797
Roč. 361, č. 2 (2011), s. 587-593Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Stigmasterol ; Amino acid ; LMOG Vědní obor RIV CC - Organická chemie CEP 2B06024 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy OC10001 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000293038200024 DOI 10.1016/j.jcis.2011.05.084 Anotace An efficient synthesis of three novel stigmasterol-amino acid (glycine, L-leucine and L-phenylalanine) conjugates as stimuli responsive gelators is reported. The gelation properties of the prepared compounds were investigated in a variety of organic as well as aqueous solvents. The most striking finding of our investigation was that the hydrochloride salts of the prepared conjugates acted as gelators, whereas the neutral conjugates were either non-gelators or formed only a weak gel in anisole. The hydrochloride salts of stigmasteryl glycinate and L-Ieucinate form gels in n-alcohols (n = 4-10) and in ethane-1,2-diol, and that of stigmasteryl L-phenylalaninate forms gels in aromatic solvents and in tetrachloromethane. These unique properties of the gelators were explored to prepare stimuli responsive, "acid-base" triggered reversible sol-gel transitions. The gelators and their gels were characterized by liquid and solid-state NMR as well as FT-IR. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2012
Počet záznamů: 1