White Light Emission and Second Harmonic Generation from Secondary Group Participation (SGP) in a Coordination Network
作者:Jun He、Matthias Zeller、Allen D. Hunter、Zhengtao Xu
DOI:10.1021/ja2073559
日期:2012.1.25
coordination network solid that can be conveniently applied as a thin film onto a commercial UV-LED lamp for practical white lighting applications. The solidstate material was discovered in an exercise of exploring molecular building blocks equipped with secondary groups for fine-tuning the structures and properties of coordination nets. Specifically, CH(3)SCH(2)CH(2)S- and (S)-CH(3)(OH)CHCH(2)S- (2-hydroxylpropyl)
Controlling the Biological Effects of Spermine Using a Synthetic Receptor
作者:Laurent Vial、R. Frederick Ludlow、Julien Leclaire、Ruth Pérez-Fernández、Sijbren Otto
DOI:10.1021/ja062536b
日期:2006.8.1
designing syntheticreceptors with affinities sufficient to compete with biological polyamine receptors remains a huge challenge. Binding affinities of synthetic hosts are typically separated by a gap of several orders of magnitude from those of biomolecules. We now report that a dynamic combinatorial selection approach can deliver a syntheticreceptor that bridges this gap. The selected receptor binds
多胺在生物学中发挥着重要作用,但它们在许多过程中的确切功能知之甚少。能够隔离多胺的人工宿主分子可能是研究其细胞功能的有用工具。然而,设计具有足以与生物多胺受体竞争的亲和力的合成受体仍然是一个巨大的挑战。合成宿主的结合亲和力通常与生物分子的结合亲和力有几个数量级的差距。我们现在报告说,动态组合选择方法可以提供弥合这一差距的合成受体。选定的受体以 22 nM 的解离常数与精胺结合,足以将其从其天然宿主 DNA 中去除,并逆转精胺对核酸的一些生物效应。在低浓度下,精胺诱导左旋 DNA 的形成,但在加入我们的受体后,DNA 恢复到其右旋形式。核磁共振研究和计算机模拟表明精胺复合物具有假轮烷的形式。精胺受体是开发用于阐明精胺在细胞生物学中作用的治疗剂或分子探针的有前途的先导。
Contributions of pocket depth and electrostatic interactions to affinity and selectivity of receptors for methylated lysine in water
作者:Joshua E. Beaver、Brendan C. Peacor、Julianne V. Bain、Lindsey I. James、Marcey L. Waters
DOI:10.1039/c4ob02231a
日期:——
Investigation of charge and pocket depth in a series of receptors led to improved affinity and selectivity for trimethyllysine.