Site-specific cleavage of nucleic acids by photoreactive conjugates
摘要:
在 DNA 中形成双链切割的过程包括提供一个反应混合物,其中包含具有第一链中断的双链 DNA,在第二链中定义了一个靶位点。该方法继续通过向反应混合物中添加选择自赖氨酸-烯二炔共轭物、赖氨酸-乙炔共轭物或两者的光反应性赖氨酸共轭物,以使赖氨酸共轭物足够时间结合到靶位点附近的 DNA。然后,用足够的电磁辐射照射反应混合物,以激活赖氨酸共轭物并切割靶位点附近的第二链。
Site-specific cleavage of nucleic acids by photoreactive conjugates
摘要:
在 DNA 中形成双链切割的过程包括提供一个反应混合物,其中包含具有第一链中断的双链 DNA,在第二链中定义了一个靶位点。该方法继续通过向反应混合物中添加选择自赖氨酸-烯二炔共轭物、赖氨酸-乙炔共轭物或两者的光反应性赖氨酸共轭物,以使赖氨酸共轭物足够时间结合到靶位点附近的 DNA。然后,用足够的电磁辐射照射反应混合物,以激活赖氨酸共轭物并切割靶位点附近的第二链。
Lysine–enediyne conjugates as photochemically triggered DNA double-strand cleavage agents
作者:Serguei V. Kovalenko、Igor V. Alabugin
DOI:10.1039/b417012a
日期:——
Statistical analysis of DNA-photocleavage by two types of lysine-enediyne conjugates confirms that more double-strand breaks are produced than can be accounted for by coincident single-strand breaks.
A novel dielectric composition is provided that is useful in the manufacture of integrated circuit devices and integrated circuit packaging devices. The dielectric composition is prepared by imidizing and curing an oligomeric precursor compound comprised of a central polybenzoxazole, polybenzothiazole, polyamic acid or polyamic acid ester segment end-capped at each terminus with an aryl-substituted acetylene moiety such as an ortho-bis(arylethynyl)aryl group, e.g., 3,4-bis(phenylethynyl)phenyl. Integrated circuit devices, integrated circuit packaging devices, and methods of synthesis and manufacture are provided as well.
A novel dielectric composition is provided that is useful in the manufacture of integrated circuit devices and integrated circuit packaging devices. The dielectric composition is prepared by imidizing and curing an oligomeric precursor compound comprised of a central polybenzoxazole, polybenzothiazole, polyamic acid or polyamic acid ester segment end-capped at each terminus with an aryl-substituted acetylene moiety such as an ortho-bis(arylethynyl)aryl group, e.g., 3,4-bis(phenylethynyl)phenyl. Integrated circuit devices, integrated circuit packaging devices, and methods of synthesis and manufacture are provided as well.
A novel dielectric composition is provided that is useful in the manufacture of integrated circuit devices and integrated circuit packaging devices. The dielectric composition is prepared by imidizing and curing an oligomeric precursor compound comprised of a central polybenzoxazole, polybezothiazole polyamic acid ester segment end-capped at each terminus with an aryl-substituted acetylene moiety such as an ortho-bis(arylethynyl)aryl group, e.g., 3,4-bis(phenylethynly)phenyl. Integrated circuit devices, integrated circuit packaging devices, and methods of synthesis and manufacture are provided as well.
Dielectric compositions, preparation thereof, and integrated circuit devices fabricated therewith
申请人:International Business Machines Corporation
公开号:US06518392B2
公开(公告)日:2003-02-11
A novel dielectric composition is provided that is useful in the manufacture of integrated circuit devices and integrated circuit packaging devices. The dielectric composition is prepared by imidizing and curing an oligomeric precursor compound comprised of a central polybenzoxazole, polybenzothiazole, polyamic acid or polyamic acid ester segment end-capped at each terminus with an aryl-substituted acetylene moiety such as an ortho-bis(arylethynyl)aryl group, e.g., 3,4-bis(phenylethynyl)phenyl. Integrated circuit devices, integrated circuit packaging devices, and methods of synthesis and manufacture are provided as well.