Photoactivated Supramolecular Assembly Using “Caged Chlorophylls” for the Generation of Nanotubular Self-Aggregates Having Controllable Lengths
Photoactivated Supramolecular Assembly Using “Caged Chlorophylls” for the Generation of Nanotubular Self-Aggregates Having Controllable Lengths
复制标题
使用“笼状叶绿素”进行光激活超分子组装，生成长度可控的纳米管自聚集体
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
H. Tamiaki
中科院分区：
文献类型：
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作者：
S. Matsubara;H. Tamiaki
活性超分子聚合是控制超分子聚集体大小的突破性系统。自然界中观察到手性和非对称分子的多维(2D或3D)自聚集。例如，作为绿色光合作用细菌主要捕光天线的叶绿体，具有J型滑动界面和圆形排列的叶绿素色素管状结构。在这里，我们报道了通过光激活“笼状叶绿素”的超分子组装来构建大小可控的类叶绿体聚集体。笼中的叶绿素是非组装(惰性)物种，用紫外光逐一照射活性物种，得到的活性单体自发组装成管状自聚集体。这种类绿小体聚合管的长度取决于紫外光照射的时间和强度。这种光活化超分子组装体系将在(有机)材料的应用中发挥重要作用。
Living supramolecular polymerization is a breakthrough system to control the size of supramolecular aggregates. Multidimensional (2D or 3D) self-aggregates of chiral and unsymmetric molecules are observed in nature. For instance, a chlorosome, which is the main light-harvesting antenna in green photosynthetic bacteria, possesses tubular structures of chlorophyll pigments with J-type slipped cofacial and circular arrangements. Here, we report size-controllable construction of chlorosome-like aggregates by photoactivated supramolecular assembly of “caged chlorophyll”. The caged chlorophylls, which were nonassembling (inert) species, were illuminated with UV-light to give the active species one by one, and then the resulting active monomers spontaneously assembled to construct tubular self-aggregates. The length of such chlorosome-like aggregate tubes was dependent on the UV-irradiation duration and intensity of UV-light. The photoactivated supramolecular assembly system would be useful for application of (o...
影响因子：
15
作者：
Ogi, Soichiro;Stepanenko, Vladimir;Wuerthner, Frank
通讯作者：
Wuerthner, Frank