The eb-dna liquid crystalline complex with high concentration of mg2+
文献类型：期刊论文
| 作者 | Liao, B; He, BQ; Chen, SX; Huang, Y |
| 刊名 | Polymer journal
 |
| 出版日期 | 2006 |
| 卷号 | 38期号:6页码:597-602 |
| 关键词 | Dna Cholesteric phase Liquid crystal |
| ISSN号 | 0032-3896 |
| 通讯作者 | Huang, y() |
| 英文摘要 | The effects of ethidium bromide (eb) on the dna cholesteric phase in the high ionic strength of mg2+ were investigated by polarized optical microscopy (pom), p-31 and na-23 nuclear magnetic resonance (nmr). it was found that the cholesteric pitch in the eb-dna cholesteric phase is obviously smaller than that in the eb-free dna cholesteric solutions with the same ionic strength of mg2+ at room temperature. the fraction of liquid crystal phase in both the eb-free and the eb-dna solutions is decreased with increasing the mg2+ concentration. but the fraction of liquid crystal phase in the eb-dna solutions is higher than that in the eb-free dna solutions at the same mg2+ concentration, which is attributed to the change of the surface charge distribution on the dna chains and the stiffness of dna due to intercalation of eb., the results of the na-23 nmr experiments suggested that the intercalation of eb results in the changes of the ionic environment close to the dna chains, by which the liquid crystal behavior of dna is affected. |
| WOS关键词 | PHASE-TRANSITIONS ; ELECTROSTATIC INTERACTION ; SUPPORTING ELECTROLYTE ; RAMAN-SPECTROSCOPY ; ETHIDIUM-BROMIDE ; METAL COMPLEXES ; IONIC-STRENGTH ; NA-23 NMR ; MICROSCOPY ; MACROMOLECULES |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000238332700013 |
| 出版者 | SOC POLYMER SCIENCE JAPAN |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379069 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Huang, Y |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Chem, Lab Cellulose & Lignocellulos Chem, Guangzhou 510650, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liao, B,He, BQ,Chen, SX,et al. The eb-dna liquid crystalline complex with high concentration of mg2+[J]. Polymer journal,2006,38(6):597-602. |
| APA | Liao, B,He, BQ,Chen, SX,&Huang, Y.(2006).The eb-dna liquid crystalline complex with high concentration of mg2+.Polymer journal,38(6),597-602. |
| MLA | Liao, B,et al."The eb-dna liquid crystalline complex with high concentration of mg2+".Polymer journal 38.6(2006):597-602. |
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来源：中国科学院大学
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