Pore-Window Partitions in Metal-Organic Frameworks for Highly Efficient Reversed Ethylene/Ethane Separations.

The development of paraffin-selective adsorbents is desirable but extremely challenging because adsorbents usually prefer olefin over paraffin. Herein, a new pore-window-partition strategy is proposed for the rational design of highly efficient paraffin-preferred metal-organic framework (MOF) adsorbents. The power of this strategy is demonstrated by stepwise installations of linear bidentate N-donor linkers into a prototype MOF (SNNU-201) to produce a series of partitional MOF adsorbents (SNNU-202-204).

[The influence of tumor cells spreading in blood to relapse and distant metastasis of hepatocellular carcinoma after surgery].

Objective: To study the relationship between peripheral blood hepatocellular carcinoma cells-associated AFP mRNA and tumor relapse and metastasis.

Methods: To detect several blood samples from the HCC patients by nested RT-PCR to find out AFP mRNA after 24 h, 72 h and one week and 4 weeks after surgery, and followed up the HCC patients for 1, 2, 3 years.

Results: There were 7 patients occurred relapse or distant metastasis in 12 patients with AFP mRNA positive (7/12, 58.