Zinc-based metal-organic framework matrix (Zn-MOF)

Zinc-based metal-organic frameworks (Zn-MOFs) are hybrid crystalline materials consisting of zinc nodes coordinated to organic bridging ligands to form porous 1D, 2D, or 3D structures (He et al., 2021, Coordination Chemistry Reviews). They are not biological targets such as receptors or enzymes; rather, they serve as advanced drug delivery systems and diagnostic tools (Rojas et al., 2020, Chemical Reviews). Their high porosity and tunable surface chemistry allow for the high-capacity loading of various therapeutic cargo, including small molecules like Doxorubicin and biologicals like Insulin (Sun et al., 2020, Advanced Functional Materials). In a clinical context, Zn-MOFs like ZIF-8 are frequently engineered for stimuli-responsive release, particularly in oncology, where the acidic environment of a tumor triggers framework degradation to release chemotherapeutic agents locally (Zheng et al., 2016, JACS). While zinc is an essential mineral with relatively low toxicity, the safety profile of these matrices depends heavily on the specific organic linker used and the framework's degradation kinetics in vivo (Wang et al., 2018, Chemical Society Reviews). These materials are also explored for their intrinsic antibacterial properties and their use in biosensing applications due to their high stability and biocompatibility compared to other metal-based frameworks.

Other names

Zinc-MOFZn-MOFZeolitic imidazolate frameworkZIF-8Zinc coordination polymerZinc-carboxylate MOF

Zn-MOFs function as delivery vehicles that encapsulate therapeutic agents within their porous crystalline structure, protecting them from premature degradation. Release is typically achieved through framework dissolution or guest diffusion, which is often triggered by environmental stimuli such as the acidic pH found in tumor microenvironments or the presence of specific competitive ligands (Zheng et al., 2016, JACS).