| Experiments and Models of DNA Nano—Catenary Patterns Manipulated by Liquid Flow |
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| 引用本文： | 张益,胡钧,等.Experiments and Models of DNA Nano—Catenary Patterns Manipulated by Liquid Flow[J].中国物理快报,2002,19(3):437-440. |
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| 作者姓名： | 张益 胡钧 |
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| 作者单位： | ShanghaiInstituteofNuclearResearch,ChineseAcademyofSciences,P.O.Box800－204,Shanghai201800 |
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| 摘 要： | Individual DNA molecules were first stretched by a centrifugal force and adsorbed on a modified mica surface.Then,a liquid flow was guided across the surface along a direction perpendicular to the aligned DNA strands.Some nano-catenary-like patterns of DNA molecules were formed,which were revealed by atomic force microscopy.A physical mechanism called the “s-suspension bridge” model has been presented,by which the features of the catenary-like patterns of DNA molecules can be understood quantitatively quite well.
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| 关 键 词： | DNA分子 毫微链图样 液体液处理 |
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