Green synthesis of SnO2-bentonite nanocomposites for the efficient photodegradation of methylene blue and eriochrome black-T

Publication date: 1 February 2020Source: Materials Chemistry and Physics, Volume 241Author(s): Moones Honarmand, Morteza Golmohammadi, Atena NaeimiAbstractIn this paper, for the first time, SnO2-bentonite nanocomposites were synthesized through immobilization of SnO2 nanoparticles on natural bentonite using aqueous extract of jujube fruit. In this simple and safe procedure, the jujube acted as a naturally-sourced reducing agent. The biosynthesized SnO2-bentonite nanocomposites were characterized by various techniques such as SEM (scanning electron microscopes), EDX (energy-dispersive X-ray spectroscopy), TEM (transmission electron microscope), XRD (X-ray diffraction), FT-IR (Fourier-transform infrared spectroscopy), and N2 adsorption-desorption to investigate the morphology, chemical elemental composition, crystalline size, functional groups and surface area of the biosynthesized nanocomposites. The supported SnO2 nanoparticles on bentonite were observed obviously in the SEM image of SnO2-bentonite nanocomposites. The EDX analysis of biosynthesized nanocomposites was well indicated the successful immobilization of SnO2 nanoparticles on bentonite. The average particle size of SnO2-bentonite nanocomposites was evaluated based on the TEM and found to be 18 nm. The crystalline nature of the SnO2-bentonite nanocomposites was confirmed via XRD analysis. The presented functional groups in biosynthesized SnO2-bentonite nanocomposites were identified by FTIR spectral analysis. After...
Source: Materials Chemistry and Physics - Category: Materials Science Source Type: research

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Conclusion: The overall incidence of VTE is 4% with more than half of events occurred after the stoppage of thromboprophylaxis highlighting the necessity of adopting an extended protocol. Independent predictors included older age, female gender, morbid obesity and preoperative thrombocytosis. These group of patients require particular attention for the prevention of this complication. PMID: 31830847 [PubMed - as supplied by publisher]
Source: Scandinavian Journal of Urology - Category: Urology & Nephrology Tags: Scand J Urol Source Type: research
Conclusions: Altered activity in the right TPJ supports a disturbance in self/other differentiation in schizophrenia, which could be linked with psychotic symptoms and affect social functioning in patients. Hyperactivity of the lateral frontal cortex for self- and other-reflection suggests the presence of greater cognitive demand to perform the task in the patient group.
Source: NeuroImage: Clinical - Category: Radiology Source Type: research
Publication date: Available online 14 December 2019Source: NeuroImage: ClinicalAuthor(s): Michael J. Cook, Andrew J. Gardner, Magdalena Wojtowicz, W. Huw Williams, Grant L. Iverson, Peter StanwellAbstractTask-based functional magnetic resonance imaging (fMRI) has been used to examine neuroanatomical and functional changes following mild traumatic brain injury (mTBI). Prior studies have lacked consistency in identifying common regions of altered neural activity during cognitive tasks. This may be partly due to differences in task paradigm, patient heterogeneity, and methods of fMRI analysis. We conducted a meta-analysis usi...
Source: NeuroImage: Clinical - Category: Radiology Source Type: research
Conclusions and RelevanceResults cannot be explained by group differences in DLPFC GABA or glutamate concentrations but, instead, indicate that schizophrenia disrupts the GABAergic facilitation of WM seen in healthy individuals. Results appear to parallel post mortem findings in suggesting that schizophrenia alters the distribution of different classes of GABAergic interneurons rather than producing a general deficit across the total population of neurons.
Source: NeuroImage: Clinical - Category: Radiology Source Type: research
ConclusionsOur findings provide preliminary evidence that resting-state functional connectivity can characterize depressed PD patients and help distinguish them from non-depressed ones.
Source: NeuroImage: Clinical - Category: Radiology Source Type: research
Publication date: Available online 13 December 2019Source: Academic RadiologyAuthor(s): Sarah M. Ryan, Brian Vestal, Lisa A. Maier, Nichole E. Carlson, John MuschelliRationale and ObjectivesA standard lung template could improve population-level analyses for computed tomography (CT) scans of the lung. We develop a fully automated preprocessing pipeline for image analysis of the lungs using updated methodologies and R software that results in the creation of a standard lung template. We apply this pipeline to CT scans from a sarcoidosis population, exploring the influence of registration on radiomic analyses.Materials and M...
Source: Academic Radiology - Category: Radiology Source Type: research
CONCLUSIONS: This study provides information about Aβ plaque burden, tau tangle burden, and neurodegeneration in cognitively unimpaired persons at three levels of genetic risk for AD. Unimpaired APOE ϵ4 HMs can be studied before their 70s to evaluate the understanding of factors, processes, and interventions involved in the predisposition to and prevention of AD, and after their 70s, to discover factors, processes, and interventions involved in the resilience or resistance to and prevention of AD. PMID: 31831374 [PubMed - as supplied by publisher]
Source: The Journal of Alzheimers Association - Category: Psychiatry Tags: Alzheimers Dement Source Type: research
ConclusionA synchronized contrast 4D CT simulation for HCC is safe and feasible. It results in good contrast enhancement comparable to a diagnostic 3D contrast CT scan.
Source: Reports of Practical Oncology and Radiotherapy - Category: Cancer & Oncology Source Type: research
Conclusions: Substantial agreement exists among experts regarding many strong recommendations for the best early management of severe abdominal trauma.
Source: Anaesthesia, Critical Care and Pain Medicine - Category: Anesthesiology Source Type: research
Conclusion: The results strongly suggest that the insertion mutations in the RP1 and RP1L1 genes are responsible for the retinal phenotype in affected individuals from two families. Heterozygous individuals are asymptomatic carriers. We propose that the protective allele in other homozygous regions in heterozygous carriers contribute to the phenotypic variability in asymptomatic individuals. PMID: 31833436 [PubMed - as supplied by publisher]
Source: Ophthalmic Genetics - Category: Opthalmology Tags: Ophthalmic Genet Source Type: research
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