Kinetics of Metal Ion Binding by Polysaccharide Colloids

Elise Rotureau; Herman P.van Leeuwen

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Kinetics of Metal Ion Binding by Polysaccharide Colloids

机译：多糖胶体与金属离子结合的动力学

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The dynamics of metal sorption by a gel-like polysaccharide is investigated by means of the electrochemical technique of stripping chronopotentiometry(SCP).The measured response reflects the diffusive flux properties of the metallic species in the dispersion.The colloidal ligand studied here is a functionalized carboxymethyl-dextran.Its complexation with Pb(II)reveals a time dependence that identifies strong differences in the dynamic nature of the successive metal complexes formed.Apparently,the formation of intramolecular bidentate complexes requires a slow conformational reorganization of the macromolecule that becomes the rate-limiting step in the complexation reaction.The relevant parameters for metal binding and release kinetics are computed and thus provide knowledge of the time-dependent stability and lability of metal polysaccharide complexes.

机译：通过电化学溶出计时电位法（SCP）研究了凝胶状多糖对金属的吸附动力学，所测得的响应反映了分散体中金属物质的扩散通量特性。羧甲基-右旋糖酐与Pb（II）的络合揭示了时间依赖性，从而确定了所形成的连续金属络合物的动力学性质之间的强烈差异。显然，分子内双齿络合物的形成需要大分子的缓慢构象重组，从而形成速率计算了金属结合和释放动力学的相关参数，从而提供了金属多糖复合物随时间变化的稳定性和不稳定性的知识。

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2008年第31期|共8页
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Elise Rotureau; Herman P.van Leeuwen;
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1. Kinetics of Metal Ion Binding by Polysaccharide Colloids [J] . Elise Rotureau, Herman P.van Leeuwen The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2008,第31期

机译：多糖胶体与金属离子结合的动力学
2. Released polysaccharides (RPS) from Cyanothece sp CCY 0110 as biosorbent for heavy metals bioremediation: interactions between metals and RPS binding sites [J] . Mota Rita, Rossi Federico, Andrenelli Luisa, Applied Microbiology and Biotechnology . 2016,第17期

机译：Cyanothece sp CCY 0110释放的多糖（RPS）作为重金属生物修复的生物吸附剂：金属与RPS结合位点之间的相互作用
3. Light Scattering from Aqueous Solutions of Colloid Metal Nanoparticles Stabilized by Natural Polysaccharide Arabinogalactan [J] . Ekaterina R. Gasilova, Anna A. Toropova, Stanislav V. Bushin The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2010,第12期

机译：天然多糖阿拉伯半乳聚糖稳定的胶态金属纳米颗粒水溶液中的光散射。
4. Metalation Kinetics of Free Bse Porphyrins as aProbe of Ag Colloid/Porphyrin Sers Active Systems [C] . M Prochazka, J. Stepanek, P.Y. Tupin, International symposium on progress in surface Raman spectroscopy . 2000

机译：Free BSE卟啉的金属化动力学作为Ag胶体/卟啉柱活性系统
5. Study of coordination chemistry, thermodynamics, and kinetics of metal binding to zinc-binding peptides. [D] . Magyar, John Stedman. 2002

机译：金属与锌结合肽结合的配位化学，热力学和动力学研究。
6. Kinetic and equilibrium metal-ion-binding behaviour reflected in a metal-ion-dependent antigenic determinant in bovine prothrombin. Comparison with bovine prothrombin fragment 1. [O] . D A Madar, T J Hall, R G Hiskey, 1981

机译：牛凝血酶原中依赖于金属离子的抗原决定簇反映了动力学和平衡的金属离子结合行为。与牛凝血酶原片段的比较1。
7. Unravelling the mechanistic details of metal binding to mammalian metallothioneins from stoichiometric, kinetic, and binding affinity data [O] . Judith S. Scheller, Gordon W. Irvine, Martin J. Stillman 2018

机译：从化学计量，动力学和结合亲和数据中解开金属与哺乳动物金属素素的机械细节

Kinetics of Metal Ion Binding by Polysaccharide Colloids

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