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arXiv physics/0503090physics.bio-phphysics.chem-ph
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直接连接金纳米粒子DNA组装体的熔融转变

Melting Transition of Directly-Linked Gold Nanoparticle DNA Assembly

Y. Sun, N. C. Harris, C. -H. Kiang

摘要:

DNA解链和杂交是一个基本的生物学过程,也是许多现代生物技术应用中的关键步骤。限制在表面上的DNA表现出不同的行为从自由溶液中。DNA包覆的金纳米粒子体系表现出独特的相变,代表了一类新的复杂流体。根据DNA的序列,颗粒可以通过直接互补的DNA序列或通过其序列与连接到金纳米颗粒的序列互补的“接头”DNA彼此连接。我们观察到这两个不同的系统不同的熔融转变。

英文摘要:

DNA melting and hybridization is a fundamental biological process as well as a crucial step in many modern biotechnology applications. DNA confined on surfaces exhibits different behavior from that in free solutions. The system of DNA-capped gold nanoparticles exhibits unique phase transitions and represents a new class of complex fluids. Depending on the sequence of the DNA, particles can be linked to each other through direct complementary DNA sequences or via a ``linker'' DNA whose sequence is complementary to the sequence attached to the gold nanoparticles. We observed different melting transitions for these two distinct systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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