Exceptional behavior over the whole adsorption-storage-delivery cycle for NO in porous metal organic frameworks
Exceptional behavior over the whole adsorption-storage-delivery cycle for NO in porous metal organic frameworks
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DOI：
10.1021/ja801997r
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发表时间：
2008-08-06
影响因子：
15
通讯作者：
Morris, Russell E.
中科院分区：
文献类型：
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作者：
McKinlay, Alistair C.;Xiao, Bo;Morris, Russell E.
两种多孔金属有机骨架（MOFs），[M-2（C8 H2O 6）（H2O）（2）]中心点8H（2）O（M = Co，Ni），对于生物学上重要的气体一氧化氮的吸附、储存和水触发递送表现得非常好。吸附和粉末X-射线衍射研究表明，每个配位不饱和金属原子的结构中的一个NO分子的坐标。即使在材料储存数月后，所有储存的气体也可用于输送。极高的吸附容量（类似于7 mmol NO/g MOF）和良好的储存稳定性的组合对于NO储存固体的制备是理想的。然而，最重要的是，整个储层的储存气体是可回收的接触一个简单的触发器（水分）。在肌造影实验中证明了NO储存材料的活性，表明释放NO的MOFs引起猪动脉组织的松弛。
Two porous metal organic frameworks (MOFs), [M-2(C8H2O6)(H2O)(2)] center dot 8H(2)O (M = Co, Ni), perform exceptionally well for the adsorption, storage, and water-triggered delivery of the biologically important gas nitric oxide. Adsorption and powder X-ray diffraction studies indicate that each coordinatively unsaturated metal atom in the structure coordinates to one NO molecule. All of the stored gas is available for delivery even after the material has been stored for several months. The combination of extremely high adsorption capacity (similar to 7 mmol of NO/g of MOF) and good storage stability is ideal for the preparation of NO storage solids. However, most important is that the entire reservoir of stored gas is recoverable on contact with a simple trigger (moisture). The activity of the NO storage materials is proved in myography experiments showing that the NO-releasing MOFs cause relaxation of porcine arterial tissue.