Details

Autor(en) / Beteiligte

• Li, Wanbin
• Zhang, Yufan
• Xu, Zehai
• Meng, Qin
• Fan, Zheng
• Ye, Shuaiju
• Zhang, Guoliang

Titel

Assembly of MOF Microcapsules with Size-Selective Permeability on Cell Walls

Ist Teil von

• Angewandte Chemie (International ed.), 2016-01, Vol.55 (3), p.955-959

Auflage

International ed. in English

Ort / Verlag

Germany: Blackwell Publishing Ltd

Erscheinungsjahr

2016

Quelle

MEDLINE

Beschreibungen/Notizen

• The assembly of metal–organic frameworks (MOFs) into microcapsules has attracted great interest because of their unique properties. However, it remains a challenge to obtain MOF microcapsules with size selectivity at the molecular scale. In this report, we used cell walls from natural biomaterials as non‐toxic, stable, and inexpensive support materials to assemble MOF/cell wall (CW) microcapsules with size‐selective permeability. By making use of the hollow structure, small pores, and high density of heterogeneous nucleation sites of the cell walls, uniform and continuous MOF layers could be easily obtained by inside/outside interfacial crystallization. The prepared MOF/CW microcapsules have excellent stability and enable the steady, slow, and size‐selective release of small molecules. Moreover, the size selectivity of the microcapsules can be adjusted by changing the type of deposited MOF. From two directions: MOF microcapsules were assembled on hollow cell walls (CWs) by inside/outside interfacial crystallization. Small molecules can be size‐selectively and steadily released from the prepared MOF/CW microcapsules, and the size selectivity can be adjusted by changing the type of MOF.