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Volumn 43, Issue 18, 2010, Pages 7406-7411

Efficient colorimetric anion detection based on positive allosteric system of urea-functionalized poly(phenylacetylene) receptor

Author keywords

[No Author keywords available]

Indexed keywords

ALLOSTERISM; ANION BINDING; ANION RECEPTOR; ANION RECOGNITION; ANION SENSING; BINDING MODES; COMPLEX FORMATIONS; COMPLEX UNITS; COOPERATIVE BINDING; COOPERATIVITY; ELECTRONWITHDRAWING; FUNCTIONALIZED; HIGH YIELD; HILL COEFFICIENT; HILL PLOTS; HYDROGEN BONDINGS; MAIN CHAINS; NMR TITRATION; NORBORNADIENE; POLY(PHENYLACETYLENE); POLYMER CHAINS; RESPONSE ABILITY; STEREOSELECTIVE POLYMERIZATION; TRIFLUOROMETHYL; UREA GROUPS;

EID: 78651325731     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma1016852     Document Type: Article
Times cited : (72)

References (47)
  • 6
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    • Davis, A. P. Coord. Chem. Rev. 2006, 250 (23-24), 2939-2951.
    • (2006) Coord. Chem. Rev. , vol.250 , Issue.23-24 , pp. 2939-2951
    • Davis, A.P.1
  • 33
  • 35
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    • a, whereYis the fractional saturation of the host,Ka is the apparent microscopic association constant, and n is the Hill coefficient. Wiley: New York
    • a is the apparent microscopic association constant, and n is the Hill coefficient. See: Connors, K. A. Binding Constants: the Measurement of Molecular Complex Stability Wiley: New York, 1987; 59-65.
    • (1987) Binding Constants: The Measurement of Molecular Complex Stability , pp. 59-65
    • Connors, K.A.1
  • 36
    • 78651309188 scopus 로고    scopus 로고
    • One reviewer of this paper pointed out the possibility that the newly developed absorbance at 470nm corresponds not to the quantity of anion bound to polymer but to the extent of conformational change. This is definitely sensible
    • One reviewer of this paper pointed out the possibility that the newly developed absorbance at 470nm corresponds not to the quantity of anion bound to polymer but to the extent of conformational change. This is definitely sensible.
  • 37
    • 78651334209 scopus 로고    scopus 로고
    • In fact, have reported amplification of circular dichroism (CD) signal based on cooperative conformational change of polymer chain.37 However, we think such possibility is excluded by the following reasons: (1)Poly-1 shows the colorimetric response by the addition of anions, in which conformational change of poly-1 actually plays crucial roles as well as the complex formation. However, the colorimetric response is unexplainable by only the conformation change of poly-1
    • In fact, Yashima et al. have reported amplification of circular dichroism (CD) signal based on cooperative conformational change of polymer chain.37 However, we think such possibility is excluded by the following reasons: (1)Poly-1 shows the colorimetric response by the addition of anions, in which conformational change of poly-1 actually plays crucial roles as well as the complex formation. However, the colorimetric response is unexplainable by only the conformation change of poly-1.
    • Yashima1
  • 38
    • 78651334208 scopus 로고    scopus 로고
    • In contrast toCDsignals, abosorption change should be ascribable to the complex formation event. (2)In anion recognition chemistry, a number of small molecular receptors with chromophores show the colorimetric response as a direct consequence of anion recognition event, in which the color change is considered to be based on the complex formation
    • In contrast toCDsignals, abosorption change should be ascribable to the complex formation event. (2)In anion recognition chemistry, a number of small molecular receptors with chromophores show the colorimetric response as a direct consequence of anion recognition event, in which the color change is considered to be based on the complex formation.
  • 39
    • 78651328661 scopus 로고    scopus 로고
    • 470 values in the range from 0.5 to 1.0 should be much higher due to the signal amplification effect
    • 470 values in the range from 0.5 to 1.0 should be much higher due to the signal amplification effect.
  • 40
    • 78651278135 scopus 로고    scopus 로고
    • Therefore, we believe that the absorbance at 470 nm is almost identical with the quantity of anion bound to the polymer. At least, the determination of the apparent binding constant and cooperativity using this absorbance is considered to be appropriate
    • Therefore, we believe that the absorbance at 470 nm is almost identical with the quantity of anion bound to the polymer. At least, the determination of the apparent binding constant and cooperativity using this absorbance is considered to be appropriate.
  • 44
    • 78651308765 scopus 로고    scopus 로고
    • Due to the good solubility in THF, poly-2 was employed to compare the anion binding ability. See ref 26
    • Due to the good solubility in THF, poly-2 was employed to compare the anion binding ability. See ref 26.
  • 45
    • 50549083186 scopus 로고
    • The acid-base equilibrium constants in DMSO were used as an alternative. For F-: (a)
    • The acid-base equilibrium constants in DMSO were used as an alternative. For F-: (a) Frederick, G. B. Acc. Chem. Res. 1988, 21, 456-463.
    • (1988) Acc. Chem. Res. , vol.21 , pp. 456-463
    • Frederick, G.B.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.