| Microcalorimetric Study of the Action of Yb^3＋ ion on the Growth of Staphylococcus aureus |
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| 引用本文： | 侯安新,薛智,刘义,屈松生.Microcalorimetric Study of the Action of Yb^3＋ ion on the Growth of Staphylococcus aureus[J].中国化学,2003,21(9):1146-1149. |
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| 作者姓名： | 侯安新 薛智 刘义 屈松生 |
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| 作者单位： | DepartmentofChemistry,CollegeofChemistryandMolecularSciences,WuhanUniversity,Wuhan,Hubei430072,China |
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| 基金项目： | theNaturalScienceFoundationofHubeiProvince (No .2 0 3130 497) ,theNationalNaturalScienceFoundationofChina (No .30 170 0 10 )andtheTeachingandScientificResearchAwardProgramforOutstandingYoungTeachersinHighEducationIn stituteofChineseEducationalMinist |
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| 摘 要： | A microcalorimetric method was used to evaluate the action of Yb^3 ions onthe growth metabolism of Staphylococcus aureus.The power-time curves of the growth metabolism of Staphylo.coccus aureus and the action of Yb^3 ions were obtained by us-ing stopped-flow method at 37 ℃. For evaluation of the action,the growth rate constants ( k1 and k2) for the log phase 1, log phase 2, and the total heat effect (Qtotal) for Staphylococcus aureus were determined. The results show that Yb^3 ions at low concentrations have the stimnlatory effect on Staphylococcus au-reus and that Yb^3 ions at higher concentration could inhibit its growth.
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| 关 键 词： | Yb^3＋ 金黄色酿脓葡萄球菌 微量热量分析 双功能 热动力学 抗菌剂 细菌学 镱离子 |
Microcalorimetric Study of the Action of Yb~(3+) Ion on the Growth of Staphylococcus aureus |
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| HOU,An-Xin XUE,Zhi LIU,Yi QU,Song-Sheng.Microcalorimetric Study of the Action of Yb~(3+) Ion on the Growth of Staphylococcus aureus[J].Chinese Journal of Chemistry,2003,21(9):1146-1149. |
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| Authors: | HOU An-Xin XUE Zhi LIU Yi QU Song-Sheng |
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| Institution: | HOU,An-Xin XUE,Zhi LIU,Yi QU,Song-Sheng Department of Chemistry,College of Chemistry and Molecular Sciences,Wuhan University,Wuhan,Hubei 430072,China |
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| Abstract: | A microcalorimetric method was used to evaluate the action of Yb3+ ions on the growth metabolism of Staphylococcus aureus. The power‐time curves of the growth metabolism of Staphylococcus aureus and the action of Yb3+ ions were obtained by using stopped‐flow method at 37°C. For evaluation of the action, the growth rate constants (k1 and k2) for the log phase 1, log phase 2, and the total heat effect (Qtotal) for Staphylococcus aureus were determined. The results show that Yb3+ ions at low concentrations have the stimulatory effect on Staphylococcus aureus and that Yb* ions at higher concentration could inhibit its growth. |
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| Keywords: | microcalorimetry Staphylococcus aureus Yb 3+ duplex functions thermokinetics |
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