Highly permselective and durable membrane materials have been sought for energy-efficient C 3 H 6 /C 3 H 8 separation. Mixed-matrix membranes (MMMs) comprising ap olymer matrix and metal-organic frameworks (MOFs) are promising candidates for this application;h owever,r ational matching of filler-matrix is challenging and their separation performances need to be further improved. Here,w ep ropose an ovel strategy of "defect engineering" in MOFs as an additional degree of freedom to design advanced MMMs. MMMs incorporated with defect-engineered MOFs exhibit exceptionally high C 3 H 6 permeability and maintained C 3 H 6 / C 3 H 8 selectivity,e specially with enhanced stability under industrial mixed-gas conditions.T he gas transport, sorption, and material characterizations reveal that the defect sites in MOFs provide the resulting MMMs with not only ultrafast diffusion pathwaysb ut also favorable C 3 H 6 sorption by forming complexation with unsaturated open metal sites, confirmed by in situ FT-IR studies.M ost importantly,t he concept is also valid for different polymer matrices and gas pairs,d emonstrating its versatile potential in other fields.

Highly permselective and durable membrane materials have been sought for energy-efficient C 3 H 6 /C 3 H 8 separation. Mixed-matrix membranes (MMMs) comprising ap olymer matrix and metal-organic frameworks (MOFs) are promising candidates for this application;h owever,r ational matching of filler-matrix is challenging and their separation performances need to be further improved. Here,w ep ropose an ovel strategy of "defect engineering" in MOFs as an additional degree of freedom to design advanced MMMs. MMMs incorporated with defect-engineered MOFs exhibit exceptionally high C 3 H 6 permeability and maintained C 3 H 6 / C 3 H 8 selectivity,e specially with enhanced stability under industrial mixed-gas conditions.T he gas transport, sorption, and material characterizations reveal that the defect sites in MOFs provide the resulting MMMs with not only ultrafast diffusion pathwaysb ut also favorable C 3 H 6 sorption by forming complexation with unsaturated open metal sites, confirmed by in situ FT-IR studies.M ost importantly,t he concept is also valid for different polymer matrices and gas pairs,d emonstrating its versatile potential in other fields.

to the splenic flexure is challenging so a mixed approach can be used to overcome the technical difficulties. Obese patients have a higher risk of surgical site infection and they often present with preoperative skin conditions such as intertrigo in body folds, which can affect the decision about the site of the mini-laparotomy. Indocyanine green angiography is a useful tool to ensure vascularization of the anastomosis, considering the higher risk of anastomotic leakage.Lastly, obese patients have higher conversion rates, longer operative times and higher postoperative morbidity, especially lower respiratory tract infections, which are the main cause of prolongation of hospital stay and increased costs.