当前位置: X-MOL 学术Adv. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Blood-Coagulation-Inspired Dynamic Bridging Strategy for the Fabrication of Multiscale-Assembled Hierarchical Porous Material
Advanced Science ( IF 14.3 ) Pub Date : 2022-11-22 , DOI: 10.1002/advs.202204702
Lin Zhang 1, 2 , Yuxin Sun 1 , Li Peng 2 , Wenzhang Fang 2 , Qiao Huang 1 , Jie Zhang 1 , Ziyan Zhang 1 , Hang Li 2 , Yingjun Liu 2 , Yibin Ying 1 , Yingchun Fu 1
Affiliation  

Porous materials, from macroscopic bulk materials (MBs) with (sub-)millimeter-scale pores to tiny particles (TPs) with (sub-)nanometer-scale pores, have attracted ever-growing interest in various fields. However, the integration of multi-scale pores in one composite is promising but challenging, owing to the considerable gap in the scale of the pores. Inspired by blood coagulation, a fibrin-based dynamic bridging strategy is developed to fabricate a multiscale-assembled hierarchical porous material (MHPM), in which fibrin formed as the sub-framework for the weaving-narrow of MBs and the enwinding-load of TPs. The bio-polymerization nature makes the fabrication rapid, facile, and universal for the customizable integration of seven kinds of TPs and four kinds of MBs. Besides, the integration is controllable with high load capacity of TPs and is stable against external shock forces. The unique multi-level structure endows the MHPM with large and accessible surface area, and efficient mass transfer pathways, synergistically leading to high adsorption capacity and rapid kinetics in multiple adsorption models. This work suggests a strategy for the rational multi-level design and fabrication of hierarchical porous architectures.

中文翻译:


用于制造多尺度组装多级多孔材料的血液凝固启发动态桥接策略



多孔材料,从具有(亚)毫米级孔隙的宏观散装材料(MB)到具有(亚)纳米级孔隙的微小颗粒(TP),在各个领域引起了越来越多的兴趣。然而,由于孔隙尺度存在相当大的差距,将多尺度孔隙集成在一种复合材料中是有前途但具有挑战性的。受血液凝固的启发,开发了一种基于纤维蛋白的动态桥接策略来制造多尺度组装的分层多孔材料(MHPM),其中纤维蛋白形成为MB的编织狭窄和TP的缠绕负载的子框架。生物聚合性质使得制造快速、简便且通用,可定制集成七种TP和四种MB。此外,集成可控,TP的负载能力高,并且能够稳定地抵抗外部冲击力。独特的多级结构赋予MHPM较大且可接近的表面积以及高效的传质路径,协同导致多种吸附模型中的高吸附容量和快速动力学。这项工作提出了一种合理的多层设计和分层多孔结构制造的策略。
更新日期:2022-11-22
down
wechat
bug