Metallopolymer-Peptide Hybrid Materials: Synthesis and Self-Assembly of Functional, Polyferrocenylsilane-Tetrapeptide Conjugates
作者:Siree Tangbunsuk、George R. Whittell、Maxim G. Ryadnov、Guido W. M. Vandermeulen、Derek N. Woolfson、Ian Manners
DOI:10.1002/chem.201102223
日期:2012.2.27
e) (PFEMS) was employed for the latter purpose. All conjugates were characterised by GPC, MALDI‐TOF MS, NMR and IR spectroscopy. With the exception of Ac‐V4‐PFDMS20, all materials exhibited some anti‐parallel β‐sheet structure in the solid state. The self‐assembly of the conjugates was studied in toluene by DLS. The vast majority of the materials, irrespective of peptide sequence or chain crystallinity
聚二茂铁基二甲基硅烷(PFDMS)与Ac‐(GA)2 ‐OH,Ac‐A 4 ‐ OH,Ac‐G 4 ‐ OH和Ac‐V 4 ‐OH的共轭物是通过四肽单元与氨基封端的金属聚合物。聚合的数均度(DP Ñ的PFDMS的)为约20和可比较的材料具有较短(DP Ñ ≈10)和/或无定形链已经由相同的程序制备。聚(二茂铁基乙基甲基硅烷)(PFEMS)用于后一目的。所有结合物均通过GPC,MALDI-TOF MS,NMR和IR光谱进行了表征。除Ac‐V 4 ‐ PFDMS 20外,所有材料在固态时都表现出一些反平行的β折叠结构。通过DLS在甲苯中研究了共轭物的自组装。不管肽序列或链的结晶度如何,绝大多数材料都能提供由被PFS电晕包围的肽核组成的纤维。这些纤维是通过TEM和AFM以交联网络的形式发现的。化学还原的PFS电晕的可及性已通过在纤维表面上银纳米颗粒的局部形成得到证明。