Correction: Thermally stable mesoporous tetragonal zirconia through surfactant-controlled synthesis and Si-stabilization.

[This corrects the article DOI: 10.1039/D2RA01459A.].

Thermally stable mesoporous tetragonal zirconia through surfactant-controlled synthesis and Si-stabilization.

Thermally stable, highly mesoporous Si-stabilized ZrO was prepared by sol-gel-synthesis. By utilizing the surfactant dodecylamine (DDA), large mesopores with a pore width of ∼9.4 nm are formed.

Evolution of Hierarchically Porous Nickel Alumina Catalysts Studied by X-Ray Ptychography.

The synthesis of hierarchically porous materials usually requires complex experimental procedures, often based around extensive trial and error approaches. One common synthesis strategy is the sol-gel method, although the relation between synthesis parameters, material structure and function has not been widely explored. Here, in situ 2D hard X-ray ptychography (XRP) and 3D ptychographic X-ray computed tomography (PXCT) are applied to monitor the development of hierarchical porosity in Ni/Al O and Al O catalysts with connected meso- and macropore networks.

Hard X-Ray Nanotomography for 3D Analysis of Coking in Nickel-Based Catalysts.

Understanding catalyst deactivation by coking is crucial for knowledge-based catalyst and process design in reactions with carbonaceous species. Post-mortem analysis of catalyst coking is often performed by bulk characterization methods. Here, hard X-ray ptychographic computed tomography (PXCT) was used to study Ni/Al O catalysts for CO methanation and CH dry reforming after artificial coking treatment.

Electrolysis of Natural Waters Contaminated with Transition-Metal Ions: Identification of A Metastable FePb-Based Oxygen-Evolution Catalyst Operating in Weakly Acidic Solutions.

The possibility of efficient water electrooxidation sustained by continuous (re)generation of catalysts derived from the oxidative electrodeposition of transition-metal contaminants is examined herein for three natural water samples from Australia and China. The metal composition of the solutions has been determined by inductively coupled plasma optical emission spectrometry, and a range of strategies to produce water-splitting catalysts by means of in situ electrodeposition have been applied. The performance of the resulting electrocatalysts is below the state-of-the-art level owing to large amounts of impurities in the solutions and non-optimal concentrations of naturally available catalyst precursors.

1alpha,25-dihydroxyvitamin D3 interacts with curcuminoids to stimulate amyloid-beta clearance by macrophages of Alzheimer's disease patients.

Patients with Alzheimer's disease (AD) suffer from brain amyloidosis related to defective clearance of amyloid-beta (Abeta) by the innate immune system. To improve the innate immune system of AD patients, we studied immune stimulation of macrophages by 1alpha,25(OH)2-vitamin D3(1,25D3) in combination with curcuminoids. AD patients' macrophages segregate into Type I (positively stimulated by curcuminoids regarding MGAT-III transcription) and Type II (not stimulated).

Genetic analysis of candidate modifier polymorphisms in Hb E-beta 0-thalassemia patients.

Hemoglobin E (Hb E)-beta-thalassemia patients display a range of clinical severities, from nearly asymptomatic to transfusion-dependent thalassemia major. Given this clinical heterogeneity, additional genetic factors modifying disease severity remain to be discovered. Association studies are being conducted to elucidate the role of genetic polymorphisms as disease severity modifiers in Hb E-beta-thalassemia patients.

Evaluation of linkage disequilibrium between chromosome 22q11 single nucleotide polymorphisms in a large outbred population.

To assess the utility of linkage disequilibrium (LD) as a tool for fine-mapping disease genes in non-isolated populations, we have assessed the linkage disequilibrium strength among a series of single nucleotide polymorphisms (SNPs) in an approximate 1 Mb region of human chromosome 22q11. Nineteen random SNPs were discovered and tested across this region with an average spacing of 57 kb (range=1.4-289 kb).