Simultaneous Bulk-and Surface-initiated Living Polymerization Studied with a Heterogeneous Stochastic Reaction Model

To better characterize the properties of surface-initiated polymers, simultaneous bulk-and surface-initiated polymerizations are usually carried out by assuming that the properties of the surface-initiated polymers resemble those of the bulk-initiated polymers. Through a Monte Carlo simulation using a heterogeneous stochastic reaction model, it was discovered that the bulk-initiated polymers exhibit a higher molecular weight and a lower dispersity than the corresponding surface-initiated polymers, which indicates that the equivalent assumption is invalid. Furthermore, the molecular weight distributions of the two types of polymers are also different, suggesting different polymerization mechanisms. The results can be simply explained by the heterogeneous distributions of reactants in the system. This study is helpful to better understand surface-initiated polymerization.

Silk fibroin-based scaffolds for tissue engineering

从 Bombyx mori 蚕的丝绸丝心蛋白(SF ) 作为 biomechanical 材料展出吸引人的潜在的应用，由于它的唯一的机械、生物的性质。这评论构画出 SF 的结构和性质，它的 biocompatibility 和 biodegradability 包括。它在为设计应用的织物是有希望的各种各样的基于 SF 的 composites 脚手架的制造上加亮最近的研究，并且为控制房间行为支持织物修理讨论各种各样的基于 SF 的 composites 脚手架和珍贵途径的合成方法。有房间的细胞外的矩阵和他们的相互作用的功能也这里被考察。