Vitamin B12 derived CoCNx composite confined in SBA-15 as highly effective catalyst to activate peroxymonosulfate for naproxen degradation
Publication date: 1 June 2020Source: Chemical Engineering Journal, Volume 389Author(s): Jifei Hou, Jingling Lin, Heyun Fu, Yuqiu Wan, Xiaolei Qu, Zhaoyi Xu, Shourong ZhengAbstractVitamin B12 confined in the pores of SBA-15 was converted into Co and N co-doped carbon composite (denoted as CoCNx), which was confined in the pores of SBA-15 (CoCNx@SBA-15) after pyrolysis. For comparison, CoCNx catalyst supported on SBA-15 (denoted as CoCNx/SBA-15) was prepared by the impregnation method using VB12 as CoCNx precursor followed by pyrolysis. The catalysts were fully characterized and naproxen (NPX) degradation by catalytic activation of peroxymonosulfate (PMS) on the catalysts was investigated. The characterization results showed that in contrast to CoCNx/SBA-15, CoCNx of CoCNx@SBA-15 was successfully confined in the pores of SBA-15. For catalytic PMS activation for NPX degradation, CoCNx@SBA-15 exhibited a much higher catalytic activity than CoCNx/SBA-15 and CoCNx as well as commonly used carbon-based and Co-based catalysts. Additionally, Co leaching from CoCNx@SBA-15 was substantially suppressed as compared with CoCNx/SBA-15. Accordingly, the removal of either Co or CNx from CoCNx@SBA-15 led to substantially decreased catalytic activity and a considerable synergistic effect was identified between active Co and CNx species for catalytic PMS activation. The reuse of CoCNx@SBA-15 in catalytic PMS activation showed a gradual catalyst deactivation, whereas the activity of the used cata...
Publication date: Available online 1 April 2020Source: Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of LipidsAuthor(s): Florina Zakany, Tamas Kovacs, Gyorgy Panyi, Zoltan Varga
CONCLUSION: Pregnancy outcomes after hysteroscopic placement of a microinsert for hydrosalpinx management before embryo transfer were comparable to those following laparoscopic proximal tubal occlusion or salpingectomy. However, caution is advised regarding microinsert placement for hydrosalpinges before proceeding with assisted reproductive technology. PMID: 32224160 [PubMed - as supplied by publisher]
Authors: Feres M, Retamal-Valdes B, Faveri M, Duarte P, Shibli J, Soares GMS, Miranda T, Teles F, Goodson M, Hasturk H, Van Dyke T, Ehmke B, Eickholz P, Schlagenhauf U, Meyle J, Koch R, Kocher T, Hoffmann T, Kim TS, Kaner D, Figueiredo LC, Doyle H Abstract OBJECTIVE: The selection of proper outcome measures is a critical step in clinical research. Most randomized clinical trials (RCTs) assessing the effects of initial anti-infective periodontal therapies use surrogate outcomes as primary outcome variables, such as mean changes in probing depth (PD) or in clinical attachment. However, these parameters do not reflect...
CONCLUSION: Within the limits of our study, the results of this trial indicate that reconstructive periodontal surgery with PTG offers minimal radiographic defect resolution with no significant improvements in clinical endpoints compared to open flap debridement. PMID: 32224548 [PubMed - in process]
CONCLUSION: P. gingivalis and F. nucleatum inoculation induced significant changes in intestinal inflammation and caecal microbiome. Oral gavage with LGG exerted a protective effect against intestinal inflammation and limited gut microbiome changes associated with P. gingivalis and F. nucleatum. PMID: 32224547 [PubMed - in process]
CONCLUSIONS: Non-surgical periodontal therapy was effective during the first 18 months, but periodontal conditions were worse at 48 months after therapy. The distal sites of abutment teeth with direct retainers presented the worst periodontal conditions. PMID: 32224546 [PubMed - in process]
CONCLUSION: Individuals with DD undergoing PMT presented higher rates of recurrence of periodontitis and tooth loss when compared to individuals without DD. Additionally, the interaction between DD and smoking significantly increased the risk for the recurrence of periodontitis. PMID: 32224545 [PubMed - in process]
Publication date: Available online 31 March 2020Source: Contemporary Educational PsychologyAuthor(s): Eike Wille, Gundula Stoll, Thomas Gfrörer, Jenna Cambria, Benjamin Nagengast, Ulrich Trautwein
Publication date: Available online 31 March 2020Source: Food Quality and PreferenceAuthor(s): Andrijana Mušura Gabor, Bojan Stojnić, David Ban-Ostić
Publication date: Available online 31 March 2020Source: Food Quality and PreferenceAuthor(s): Berta Schnettler, Edgardo Miranda-Zapata, Ligia Orellana, Tino Bech-Larsen, Klaus G. Grunert