e., laccases, were immobilized onto silica nanoparticles. The resulting nanobiocatalyst produced at kilogram scale was demonstrated to possess a broad substrate spectrum regarding the degradation of recalcitrant pollutants. This nanobiocatalyst was applied in a membrane reactor at technical scale for tertiary wastewater treatment. The system efficiently removed BPA and the results of long-term
field tests illustrated the potential of fumed silica nanoparticles/laccase composites for advanced biological wastewater treatment.”
“Aims: The aim of this study was to evaluate the potential role of laparoscopic appendicectomy in reducing morbidity and length of stay in children compared to open procedures in a UK District General Hospital setting. Methods: A three-year retrospective review of children smaller than = 15 years with histologically confirmed appendicitis AZD6738 who underwent laparoscopic (LA) and/or open (OA) appendicectomy was performed. Choice of operation
was based on individual surgeon’s preference and on patient’s body size. Data collected included rate of histologically complicated appendicitis, post-operative length of stay (LOS), and collective and differential morbidity rates, i.e., Lapatinib wound infection, intra-abdominal collection, and ileus. Chi-square and Mann-Whitney tests were used for statistical analysis. P smaller than 0.05 was regarded as significant. Results: Eighty children (70% male) were identified at median age 11 (3-15) years. They could be divided into complicated (n = 18, 22%) and simple appendicitis (n = 62, 78%). Appendicectomy was performed in all as an OPEN (n = 53, 66%) or LAPAROSCOPIC (n = 27, 34%) procedure. Both groups were comparable in gender distribution (P = 0.11)
and rate of complicated appendicitis (30% vs. 19%, respectively; P = 0.27). Median age was significantly lower in the OPEN group [10 (3-15) vs. 12 (7-15) years; P smaller than 0.004]. Laparoscopic appendicectomy had a significantly lower rate of collective morbidity (3.8% vs. 25.9%; P smaller than 0.003), including lower rate of intra-abdominal collection (1.9% vs. 14.8%; P smaller than 0.01). Median LOS was not significantly different (1 day vs. 2 days; selleck chemical P = 0.14). Conclusion: Laparoscopic appendicectomy in children in a UK District General Hospital is safe and was associated with significantly less post-operative morbidity than the open technique. (C) 2014 Published by Elsevier Inc.”
“Flagella, the helical propellers that extend from the bacterial surface, are a paradigm for how complex molecular machines can be built outside the living cell. Their assembly requires ordered export of thousands of structural subunits across the cell membrane and this is achieved by a type Ill export machinery located at the flagellum base, after which subunits transit through a narrow channel at the core of the flagellum to reach the assembly site at the tip of the nascent structure, up to 20 mu m from the cell surface.