Interaction Mode between Inclusion Complex of Vitamin K
Methods including spectroscopy, electronic chemistry and thermodynamics were used to study the inclusion effect between γ-cyclodextrin (CD) and vitamin K 3 (K 3 ), as well as the interaction mode between herring-sperm DNA (hsDNA) and γ-CD-K 3 inclusion complex. The results from ultraviolet spectroscopic method indicated that VK 3 and γ-CD formed 1:1 inclusion complex, with the inclusion constant K f = 1.02 × 10 4 L/mol, which is based on Benesi-Hildebrand's viewpoint. The outcomes from the probe method and Scatchard methods suggested that the interaction mode between γ-CD-K 3 and DNA was a mixture mode, which included intercalation and electrostatic binding effects. The binding constants were K θ 25°C = 2.16 × 10 4 L/mol, and K θ 37°C = 1.06 × 10 4 L/mol. The thermodynamic functions of the interaction between γ-CD-K 3 and DNA were Δ r H m θ = −2.74 × 10 4 J/mol, Δ r S m θ = 174.74 J·mol −1 K −1 , therefore, both Δ r H m θ (enthalpy) and Δ r S m θ (entropy) worked as driven forces in this action..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2016 |
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| Erschienen: |
2016 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:35 |
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| Enthalten in: |
Nucleosides, nucleotides & nucleic acids - 35(2016), 5, Seite 245 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tang, Yan [VerfasserIn] |
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| Themen: |
| doi: |
10.1080/15257770.2016.1139125 |
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| PPN (Katalog-ID): |
OLC1975478916 |
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| 520 | |a Methods including spectroscopy, electronic chemistry and thermodynamics were used to study the inclusion effect between γ-cyclodextrin (CD) and vitamin K 3 (K 3 ), as well as the interaction mode between herring-sperm DNA (hsDNA) and γ-CD-K 3 inclusion complex. The results from ultraviolet spectroscopic method indicated that VK 3 and γ-CD formed 1:1 inclusion complex, with the inclusion constant K f = 1.02 × 10 4 L/mol, which is based on Benesi-Hildebrand's viewpoint. The outcomes from the probe method and Scatchard methods suggested that the interaction mode between γ-CD-K 3 and DNA was a mixture mode, which included intercalation and electrostatic binding effects. The binding constants were K θ 25°C = 2.16 × 10 4 L/mol, and K θ 37°C = 1.06 × 10 4 L/mol. The thermodynamic functions of the interaction between γ-CD-K 3 and DNA were Δ r H m θ = −2.74 × 10 4 J/mol, Δ r S m θ = 174.74 J·mol −1 K −1 , therefore, both Δ r H m θ (enthalpy) and Δ r S m θ (entropy) worked as driven forces in this action. | ||
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| 650 | 4 | |a γ-cyclodextrin | |
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