Turbulent drag reduction and degradation of DNA

被引：97

作者：

Choi, HJ

Lim, ST

Lai, PY

Chan, CK ^{[1
]}

机构：

[1] Acad Sinica, Inst Phys, Taipei 115, Taiwan

[2] Natl Cent Univ, Dept Phys, Chungli 320, Taiwan

[3] Natl Cent Univ, Ctr Complex Syst, Chungli 320, Taiwan

[4] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.89.088302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Turbulent drag reduction induced by lambda-DNA is studied. The double-stranded DNA is found to be a good drag reducer when compared with the other normal linear polymers. However, this drag reducing power disappears when the DNA denatures to form two single-strand molecules. Mechanical degradation of DNA is also different from that of the normal linear-chain polymers: DNA is always cut in half by the turbulence. Our results suggest that the mechanism for turbulent degradation of DNA is different from that of the normal flexible long-chain polymers.

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页码：088302/1 / 088302/4

页数：4

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