Novel catalytic materials are highly demanded to perform a variety of catalytic organic reactions.

A novel Zn/Co zeolitic imidazolate framework (ZIF) has been constructed which demonstrates better gas adsorption (CO₂, CH₄ and N₂) and catalytic (CO₂ conversion) properties compared with ZIF-8 and ZIF-67.

In this review, we have portrayed the structure, synthesis and applications of a variety of biomimetic MOFs from an unprecedented angle.

In the midst of the global climate change phenomenon, mainly caused by fossil fuel burning to provide energy for our daily life and discharge of CO₂ into the atmosphere, biogas is one of the important renewable energy sources that can be upgraded and applied as a fuel source for energy in daily life. The advantages of the production of hybrid materials, metal–organic framework (MOF) adsorbents, expected for the biogas upgrading, rely on the bulk separation of CO₂ under near-ambient conditions. This review highlights the challenges for MOF adsorbents, which have the greatest upgrading abilities for biogas via selective passage of methane. The key factors improving the ideal MOF materials for these high CO₂ capture and selectivity uses for biogas upgrading to produce bio-methane and reduce fossil-fuel CO₂ emission will be discussed.

New well-designed materials are highly demanded with the prospect of versatile properties, offering successful applications as alternates to conventional materials. Major new insights into metal–organic self-assembled structures assisting biochemical purposes have recently emerged. Metal–organic polyhedral cages are highlighted as new research materials to be used for therapeutic, sensing and imaging, purposes etc. This tutorial review covers achievements in the biochemical applications of these multinuclear complexes. Examples of their ability to aid the ionic transport, biomolecular sensing, imaging, and drug delivery are presented.