Kim Jong-Yeob, Lee Dong Hun, Kim Seol Ji, Jang Du-Jeon
School of Chemistry and Center for Space-Time Molecular Dynamics, Seoul National University, NS60, Seoul 151-742, South Korea.
J Colloid Interface Sci. 2008 Oct 15;326(2):387-91. doi: 10.1016/j.jcis.2008.06.050. Epub 2008 Jul 1.
A gold nanosphere in water is considered to attain special stability in derivatization like an artificial atom when the octet rule is satisfied by forming four covalent bonds with two 5'-phosphorothioate-modified oligonucleotide molecules. Owing to this, the hybridization of two mutually complementary gold-bound oligonucleotides makes gold nanospheres preferentially connected linearly by duplexes to produce strands like linear artificial molecules. We have then fixated the linear strands of DNA-linked gold nanospheres by reducing Ag(+) ion clusters immobilized around duplexes to show the absorption spectrum of silver-coated artificial-molecular nanorods.
当一个水中的金纳米球通过与两个5'-硫代磷酸酯修饰的寡核苷酸分子形成四个共价键满足八隅体规则时，它在衍生化过程中被认为能像人造原子一样获得特殊稳定性。因此，两个相互互补的与金结合的寡核苷酸的杂交使得金纳米球优先通过双链体线性连接，从而产生类似线性人造分子的链。然后，我们通过还原固定在双链体周围的Ag(+)离子簇，固定了DNA连接的金纳米球的线性链，以展示银包覆的人造分子纳米棒的吸收光谱。
