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带条 Au/Ag 纳米线上染料标记的寡核酸的距离依赖性排放:二次结构和混合化效率的影响

Rebecca L Stoermer1, Christine D Keating

  • 1Department of Chemistry, The Pennsylvania State University, University Park, 16802, USA.

Journal of the American Chemical Society
|October 5, 2006
PubMed
概括

在金属表面附近的寡核酸光取决于结构和标签位置. DNA二次结构和金属类型 (Au/Ag) 影响排放,影响生物传感器设计.

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Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling. This phenomenon, called the nuclear Overhauser enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring spin-active...