Sustainable Approach for Spent V₂O₅–WO₃/TiO₂ Catalysts Management: Selective Recovery of Heavy Metal Vanadium and Production of Value-Added WO₃–TiO₂ Photocatalysts

In order to control nitrogen oxides emissions, V₂O₅–WO₃/TiO₂ catalysts are widely applied in coal-fired power plants. Consequently, a large number of V₂O₅–WO₃/TiO₂ catalysts are spent annually because of their short operating life. Although these spent catalysts contain amounts of heavy metals, they have also been regarded as a potential secondary resource for the recovery of valuable elements titanium, tungsten, and vanadium. Therefore, this study developed an efficient method for selective leaching of heavy metal vanadium with an “H₂SO₄ + Na₂SO₃” acid reduction system. The use of this leaching solution achieved nearly 100% efficiency in vanadium removal, and the effects of the leaching parameters on the vanadium leaching efficiencies were investigated. Subsequently, the titanium-enriched residue obtained from the leaching process was used to produce high-performance WO₃–TiO₂ photocatalysts with dominant {001} facets via a hydrothermal treatment. The influence of the amount of hydrogen fluoride on the morphology and percentage exposure of the {001} facets of the photocatalysts was studied systematically. The method proposed in this study constitutes a novel and sustainable approach for the disposal of spent V₂O₅–WO₃/TiO₂ catalysts

Additional file 2: of High genetic abundance of Rpi-blb2/Mi-1.2/Cami gene family in Solanaceae

Source of the 16 potato accessions used in this study. (DOCX 13 kb

Additional file 1: of High genetic abundance of Rpi-blb2/Mi-1.2/Cami gene family in Solanaceae

Primers for cloning of LRRs. (DOCX 13 kb

Additional file 1: of High genetic abundance of Rpi-blb2/Mi-1.2/Cami gene family in Solanaceae

Primers for cloning of LRRs. (DOCX 13 kb

Low-Cost Y‑Doped TiO₂ Nanosheets Film with Highly Reactive {001} Facets from CRT Waste and Enhanced Photocatalytic Removal of Cr(VI) and Methyl Orange

In this paper, efficiency recovery of rare earth elements from cathode ray tubes (CRT) waste. Moreover, recycled yttrium was also served as raw material to produce a low-cost Y-doped TiO₂ nanosheets film with exposed {001} facets. An etching/dissolution growth mechanism was postulated by systematically investigating the influence of the reaction time. The synergistic effect of the Y dopant and the dominant {001} facets endows TiO₂ nanosheets film with excellent activity in the photoremoval of Methyl Orange (MO) and Cr­(VI). A possible mechanism of photoremoval of MO and Cr­(VI) is proposed. This study not only contributes to recycling methods for CRT waste but also presents a new way to prepare low-cost sustainable photocatalytic materials using economically viable waste

A Novel Method for Fabricating an Electrospun Poly(Vinyl Alcohol)/Cellulose Nanocrystals Composite Nanofibrous Filter with Low Air Resistance for High-Efficiency Filtration of Particulate Matter

Particulate matter (PM) air pollution poses a risk to public health, especially in rapidly industrializing countries. One major way to protect individuals from PM exposure is to use fiber-based filters for indoor air purification. In this study, a new low pressure drop poly­(vinyl alcohol) (PVA)/cellulose nanocrystals (CNCs) composite nanofibrous filter was fabricated using electrospinning. This electrospun PVA/CNCs filter was demonstrated as an air filter for the first time. The CNCs not only contributed to the PVA/CNCs system as mechanical reinforcement agents but also increased the surface charge density of the electrospinning solution, thereby reducing fiber diameter. The thinner fibers reduced pressure drop significantly and increased the efficiency of PM removal. Our results indicate that high PM2.5 removal efficiency was achieved (99.1%) under extremely polluted conditions (PM2.5 mass concentration > 500 μg m–3) with low pressure drop (91 Pa) at an airflow velocity of 0.2 m s–1. Considering that PVA and CNCs are both nontoxic and biodegradable, this high-efficiency composite filter with low air resistance is environmentally friendly and shows promise in indoor air purification applications

Low Ag-Doped Titanium Dioxide Nanosheet Films with Outstanding Antimicrobial Property

Novel Ag-doped TiO2 perpendicular nanosheet films were synthesized by a mild solvothermal method. The width of TiO2 nanosheets was facilely tuned by controlling reaction time, and furthermore the pattern of TiO2 nanosheets was easily obtained via predesigned seed layer. The antibacterial effects of Ag−TiO2 thin films against Escherichia coli and Staphylococcus aureus were examined by film attachment method. The coating films showed excellent performance in killing bacteria under UV light. Moreover, the potent antimicrobial ability of the film was well-sustained even in the dark environment

Supplemental Material for Peters Haugrud et al., 2022

This dataset includes the molecular marker data for the Divide x PI 272527 recombinant inbred tetraploid wheat population. A total of 10,486 markers derived from the Illumina 90K wheat array were used to construct the genetic linkage maps. The file contains all marker names using the SNP marker index designations, all marker data for the 219 recombinant inbred lines, the chromosomal locations for all markers, and the genetic positions of the markers along the chromosomes.</p

Sialic Acid-Modified O‑GlcNAc Transferase Inhibitor Liposome Presents Antitumor Effect in Hepatocellular Carcinoma

O-linked-N-acetylglucosaminylation (O-GlcNAcylation) plays a key role in hepatocellular carcinoma (HCC) development, and the inhibition of O-GlcNAcylation has therapeutic potential. To decrease the systemic adverse events and increase targeting, we used sialic acid (SA)-decorated liposomes loaded with OSMI-1, an inhibitor of the O-GlcNAcylation, to further improve the anti-HCC effect. Fifty pairs of HCC tissue samples and the cancer genome atlas database were used to analyze the expression of O-GlcNAc transferase (OGT) and its effects on prognosis and immune cell infiltration. OSMI-1 cells were treated with SA and liposomes. Western blotting, immunofluorescence, cell proliferation assay, flow cytometry, enzyme-linked immunosorbent assay, immunohistochemistry, and tumorigenicity assays were used to investigate the antitumor effect of SA-modified OSMI-1 liposomes in vitro and in vivo. OGT was highly expressed in HCC tissues, negatively correlated with the degree of tumor infiltration of CD8+ and CD4+T cells and prognosis, and positively correlated with the degree of Treg cell infiltration. SA-modified OSMI-1 liposome (OSMI-1-SAL) was synthesized with stable hydrodynamic size distribution. Both in vitro and in vivo, OSMI-1-SAL exhibited satisfactory biosafety and rapid uptake by HCC cells. Compared to free OSMI-1, OSMI-1-SAL had a stronger capacity for suppressing the proliferation and promoting the apoptosis of HCC cells. Moreover, OSMI-1-SAL effectively inhibited tumor initiation and development in mice. OSMI-1-SAL also promoted the release of damage-associated molecular patterns, including anticalreticulin, high-mobility-group protein B1, and adenosine triphosphate, from HCC cells and further promoted the activation and proliferation of the CD8+ and CD4+T cells. In conclusion, the OSMI-1-SAL synthesized in this study can target HCC cells, inhibit tumor proliferation, induce tumor immunogenic cell death, enhance tumor immunogenicity, and promote antitumor immune responses, which has the potential for clinical application in the future

Spectrum of De Novo Cancers and Predictors in Liver Transplantation: Analysis of the Scientific Registry of Transplant Recipients Database

<div><p>Background</p><p>De novo malignancies occur after liver transplantation because of immunosuppression and improved long-term survival. But the spectrums and associated risk factors remain unclear.</p><p>Aims</p><p>To describe the overall pattern of de novo cancers in liver transplant recipients.</p><p>Methods</p><p>Data from Scientific Registry of Transplant Recipients from October 1987 to December 2009 were analyzed. The spectrum of de novo cancer was analyzed and logistic-regression was used to identify predictors of do novo malignancies.</p><p>Results</p><p>Among 89,036 liver transplant recipients, 6,834 recipients developed 9,717 post-transplant malignancies. We focused on non-skin malignancies. A total of 3,845 recipients suffered from 4,854 de novo non-skin malignancies, including 1,098 de novo hematological malignancies, 38 donor-related cases, and 3,718 de novo solid-organ malignancies. Liver transplant recipients had more than 11 times elevated cancer risk compared with the general population. The long-term overall survival was better for recipients without de novo cancer. Multivariate analysis indicated that HCV, alcoholic liver disease, autoimmune liver disease, nonalcoholic steatohepatitis, re-transplantation, combined transplantation, hepatocellular carcinoma, immunosuppression regime of cellcept, cyclosporine, sirolimus, steroids and tacrolimus were independent predictors for the development of solid malignancies after liver transplantation.</p><p>Conclusions</p><p>De novo cancer risk was elevated in liver transplant recipients. Multiple factors including age, gender, underlying liver disease and immunosuppression were associated with the development of de novo cancer. This is useful in guiding recipient selection as well as post-transplant surveillance and prevention.</p></div