Adsorption of catechol and comparative solutes on hydroxyapatite
Adsorption of catechol and comparative solutes on hydroxyapatite
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DOI：
10.1002/jbm.b.10041
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发表时间：
2003-08-15
影响因子：
3.4
通讯作者：
Robertson, RE
中科院分区：
文献类型：
--
作者：
Chirdon, WM;O'Brien, WJ;Robertson, RE
现代医疗和牙科粘合剂通常难以粘在潮湿的表面上，或者长期暴露在水中会变弱。大量的研究一直致力于寻找一种在水环境中实现粘附的方法。一项研究评估了儿茶酚相对于其他化学基团的吸附，作为衡量它们在粘合剂中作为吸附基团的有效性的手段。儿茶酚和其他化学基团溶液的接触角和表面张力测量用于确定其粘附作用。建立了吸附等温线，确定了Langmuir常数。研究人员将含有儿茶酚基团的溶质与含有其他极性基团的溶质进行了比较，以观察儿茶酚对羟基磷灰石（骨骼和牙齿的矿物成分）的吸附效果，以及与粘合剂中发现的其他化学基团的吸附效果。本研究结果表明，儿茶酚和含有儿茶酚基团的分子对羟基磷灰石的吸附速率和能量高于醇类、胺类和羧酸类。(C) 2003 Wiley期刊有限公司
Contemporary medical and dental adhesives often have difficulty sticking to wet surfaces or weaken with long-term exposure to water. Substantial research has been dedicated to finding a means of achieving adhesion in an aqueous environment. A study evaluates the adsorption of catechol relative to other chemical groups as means of gauging how effective they may be as adsorptive groups in adhesives. Contact angle and surface-tension measurements of solutions of catechols and other chemical groups were used to determine their works of adhesion. Adsorption isotherms were also constructed to ascertain Langmuir constants. Solutes containing catechol groups were compared to solutes containing other polar groups to see how well catechol adsorbs to hydroxyapatite, the mineral component of bones and teeth, relative to other chemical groups found in adhesives. The results of this study show that catechol and molecules containing catechol groups have higher rates and energies of adsorption to hydroxyapatite than do groups such as alcohols, amines, and carboxylic acids. (C) 2003 Wiley Periodicals, Inc.