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Volumn 63, Issue 31, 2007, Pages 7309-7320

Low molecular mass cationic gelators derived from deoxycholic acid: remarkable gelation of aqueous solvents

Author keywords

[No Author keywords available]

Indexed keywords

ALCOHOL; ANION; BILE ACID; BILE SALT; CATION; DEOXYCHOLIC ACID DERIVATIVE; DIMETHYL SULFOXIDE; METHANOL; ORGANIC SOLVENT; QUATERNARY AMMONIUM DERIVATIVE; SODIUM CHLORIDE; SOLVENT; WATER;

EID: 34250645007     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2007.03.118     Document Type: Article
Times cited : (33)

References (87)
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    • For reviews on supramolecular chemistry, see:
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    • (1991) Cyclophanes
    • Diederich, F.1
  • 11
    • 3042697016 scopus 로고    scopus 로고
    • Lei, M.; Baldi, A.; Pan, T.; Gu, Y.; Siegel, R. A.; Ziaie, B. 17th IEEE International Conference on Micro Electro Mechanical Systems, Technical Digest, Maastricht, Netherlands, 2004; pp 391-394.
  • 16
    • 34250651298 scopus 로고
    • ACS, Washington, DC Chapter 9, p 350
    • Russo P.S. ACS Symposium Series (1987), ACS, Washington, DC Chapter 9, p 350
    • (1987) ACS Symposium Series
    • Russo, P.S.1
  • 53
    • 34250632018 scopus 로고    scopus 로고
    • note
    • Compounds 2 and 12 form gels in water at ∼0.5% w/v and above, while 12 requires NaCl to gel. Compounds 3, 6, and 9 form gels at concentrations as low as 0.2% w/v in the presence of 1 M NaCl.
  • 54
    • 34250621411 scopus 로고    scopus 로고
    • note
    • Gels became more like voluminous precipitate.
  • 57
    • 34250670746 scopus 로고    scopus 로고
    • note
    • ANS fluorescence intensity approaches saturation above CMC decreasing the sensitivity to CGC.
  • 58
    • 34250641156 scopus 로고    scopus 로고
    • note
    • gel.
  • 61
    • 34250674499 scopus 로고    scopus 로고
    • For side chain elongation procedure, see:
  • 76
    • 34250688373 scopus 로고    scopus 로고
    • note
    • Tested for one representative compound. A DABCO salt derived from cholic acid did form a weak gel in 4 M NaCl. But the use of such a high concentration of inorganic salt reduces the general applicability.
  • 81
    • 0001484538 scopus 로고
    • The Physical Chemistry of Cholanic acids
    • The CMC of NaDC has been reported to range from 1 to 70 mM, depending on pH, medium, and temperature. (. Nair P.P., and Kritchevsky D. (Eds), Plenum, New York, NY, London ). Our experiments were conducted at 25±1 °C.
    • The CMC of NaDC has been reported to range from 1 to 70 mM, depending on pH, medium, and temperature. (. Small D.M. The Physical Chemistry of Cholanic acids. In: Nair P.P., and Kritchevsky D. (Eds). The Bile acids, Chemistry, Physiology and Metabolism Vol. 1 (1971), Plenum, New York, NY, London 249 ). Our experiments were conducted at 25±1 °C.
    • (1971) The Bile acids, Chemistry, Physiology and Metabolism , vol.1 , pp. 249
    • Small, D.M.1
  • 82
    • 34250642374 scopus 로고    scopus 로고
    • note
    • ANS fluorescence is quenched in water and the intensity is greatly affected if binding alters the accessibility of water to ANS. ANS has a fluorescence quantum yield of ∼0.002 in water, which increases rapidly to 0.4 when it binds to macromolecules.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.