,Comparative Study on Polarization of DNA and CdSe Quantum Dots

来源 :中国物理快报(英文版) | 被引量 : 0次 | 上传用户：woaiyueyue1314

【摘要】

：

The polarizabilities of DNA in transverse direction and CdSe semiconductor quantum dots (QDs) deposited on mica surface are compared by means of electrostatic f

【机构】

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Department of Physics,Ningbo University,Ningbo 315211

【出处】

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中国物理快报(英文版)

【发表日期】

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2010年3期

【关键词】

：

CdSe量子点 DNA检测极化静电力显微镜半导体量子点 DNA分子硒化镉绝缘体

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The polarizabilities of DNA in transverse direction and CdSe semiconductor quantum dots (QDs) deposited on mica surface are compared by means of electrostatic force microscopy (EFM). We observe clear EFM-phase shift over CdSe QDs, while no obvious signal on DNA is detected, suggesting that DNA molecules is an electrical insulator.

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,Comparative Study on Polarization of DNA and CdSe Quantum Dots

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