描述了两种异构二炔基芘亚磷酰胺及其掺入寡核苷酸中。就在 DNA 双链体中自组织的能力而言,芘单元与众所周知的苝双酰亚胺染料 PDI 非常相似。此外,二炔基芘表现出显着的单体和非常强的准分子荧光。二炔基芘构件是诊断工具(如基于准分子的分子信标)以及具有特殊光学特性的新型 DNA 材料的应用前景的候选者。
描述了两种异构二炔基芘亚磷酰胺及其掺入寡核苷酸中。就在 DNA 双链体中自组织的能力而言,芘单元与众所周知的苝双酰亚胺染料 PDI 非常相似。此外,二炔基芘表现出显着的单体和非常强的准分子荧光。二炔基芘构件是诊断工具(如基于准分子的分子信标)以及具有特殊光学特性的新型 DNA 材料的应用前景的候选者。
A diarylethene-pyrene diad and a diarylethene-pyrene-diaryiethene triad were synthesized to investigate the photoinduced two-dimensional ordering change at a solution-HOPG interface. The molecular arrangements were detected by STM. The different photochromic isomers showed different orderings reflecting the differences in their molecular structures. For the diaryiethene-pyrene-diarylethene triad, a new ordering appeared upon irradiation with UV light and returned to the original ordering upon subsequent irradiation with visible light. The new arrangement was assigned to the ordering of the closed-closed isomers based on the images of the isolated open- and closed-isomers. The relationship between the nature of the two-dimensional ordering and the molecular structure is discussed.
Dialkynylpyrenes: Strongly Fluorescent, Environment-Sensitive DNA Building Blocks
作者:Holger Bittermann、Doreen Siegemund、Vladimir L. Malinovskii、Robert Häner
DOI:10.1021/ja806747h
日期:2008.11.19
Two isomeric dialkynylpyrene phosphoramidites and their incorporation into oligonucleotides are described. The pyrene units closely resemble the well-known perylenebisimidedye PDI with regard to the ability to self-organize within a DNA duplex. In addition, dialkynylpyrenes exhibit significant monomer and remarkably strong excimer fluorescence. The dialkynylpyrene building blocks are promising candidates
描述了两种异构二炔基芘亚磷酰胺及其掺入寡核苷酸中。就在 DNA 双链体中自组织的能力而言,芘单元与众所周知的苝双酰亚胺染料 PDI 非常相似。此外,二炔基芘表现出显着的单体和非常强的准分子荧光。二炔基芘构件是诊断工具(如基于准分子的分子信标)以及具有特殊光学特性的新型 DNA 材料的应用前景的候选者。