Behavior and mechanism of element dissolution from albite by mannose: experimental and theorical study.

Context: In this work, the release behaviors of element from albite by mannose are studied experimentally, and the corresponding decomposition mechanism is explored from a microscopic perspective via density functional theory (DFT) calculations, with the aim of promoting the development of a microbial mineral weathering theory. The sodium, silicon and aluminium in albite are released into a solution under the action of mannose, and the release of these elements makes the surface of albite rough and decreases crystallinity and interplanar spacing of the crystal. The DFT results show that the hydroxyl H atom in mannose forms a hydrogen bond with the O atom on the surface of albite, thus causing the surface atoms to move away from their original positions, destroying the stability of the silica tetrahedron.

Study on low-rank coal flotation collector screening and performance based on molecular polarity index.

Context: Extensive studies using a trial-and-error approach have been conducted on low-rank coal flotation collectors. However, screening efficient collectors remains a considerable challenge due to the lack of suitable screening principles. It has proven that polar compounds such as carboxylic acids and esters are effective collectors for low-rank coal flotation.

Applications of peptide-based nanomaterials in targeting cancer therapy.

To meet the demand for precision medicine, researchers are committed to developing novel strategies to reduce systemic toxicity and side effects in cancer treatment. Targeting peptides are widely applied due to their affinity and specificity, and their ability to be high-throughput screened, chemically synthesized and modified. More importantly, peptides can form ordered self-assembled structures through non-covalent supramolecular interactions, which can form nanostructures with different morphologies and functions, playing crucial roles in targeted diagnosis and treatment.

Coalbed Methane Enrichment Characteristics and Exploration Target Selection in the Zhuozishan Coalfield of the Western Ordos Basin, China.

The Zhuozishan coalfield at the western margin of the Ordos Basin is one of the main coal-mining areas in China, and recent explorations have revealed the great potential for coalbed methane (CBM) resources in its Carboniferous and Permian strata. In this paper, the controlling factors of CBM enrichment of the major coals are studied in this coalfield and the CBM resources are estimated based on the analysis of the coal petrology and compilation of literature data on the gas content. The result of the coal petrology analysis of 10 samples shows that the vitrinite content of No.

Effect of carbon residues structures on burnout characteristic by FTIR and Raman spectroscopy.

Fly ash (-FA) from seven typical power plants in Shanxi province (North China) were collected to explore the effect of carbon residues (-CR) structures on their burnout characteristic. Burnout characteristic is expressed by the loss on ignition (LOI) content in fly ash. Raman spectroscopy and Fourier Transform infrared (FTIR) spectroscopy are used to characterize the structure of CR.

Investigation on bio-desilication process of fly ash based on a self-screened strain of Bacillus amyloliquefaciens and its metabolites.

Bio-desilication of fly ash containing a large amount of crystalline and amorphous silicate compound by silicate bacteria had the advantages of energy-saving, environment-friendly, and controllable cost. In this study, a bacteria strain with desilication ability on fly ash was isolated from the soil and identified as Bacillus amyloliquefaciens by 16sRNA and named ZGW-12. Through the bio-leaching treatment of fly ash by ZGW-12, it was found that the concentration of Si was 306.

Observation of Strong -Aggregate Light Emission in Monolayer Molecular Crystal on Hexagonal Boron Nitride.

aggregates are widely used in studies of light-matter interaction and organic optoelectronic devices. Although -aggregate films can be fabricated on salt by epitaxial growth method, the size is limited to hundreds of nanometer. In this work, with hexagonal boron nitride (h-BN) as a substrate, highly crystalline -aggregate ultrathin films of ,'-ditridecylperylene 3,4,9,10-tetracarboxylic diimide (PTCDI-C) are achieved by physical vapor transport (PVT) method.

Efficient passivation of monolayer MoS by epitaxially grown 2D organic crystals.

Monolayer molybdenum disulfide (MoS) is considered to be a promising candidate for field-effect transistors and photodetectors due to its direct bandgap and atomically thin properties. However, the MoS devices are impeded by the intrinsic surface defects and environmental adsorption such as HO and O. Here, we demonstrated a highly ordered, ultrathin (<5 nm) and scalable N,N'-ditridecylperylene-3,4,9,10-tetracarboxylic diimide (PTCDI-C13) passivation layer that can be epitaxially grown on MoS.

Preparation and Extraordinary Room-Temperature CO Sensing Capabilities of Pd-SnO₂ Composite Nanoceramics.

Pd-SnO2 composite nanoceramics have been prepared from SnO2 and Pd nanoparticles through traditional pressing and sintering. Their responses to CO at room temperature are found to depend greatly on the content of Pd. For those samples with 1.

Plasmonic-resonance-based ternary composite complementary enhancement of the performance of dye-sensitized solar cells.

Graphene (G), TiO2 fusiform nanorods (TiO2NRs) adsorbed with Au nanoparticles (AuNPs) are prepared and blended as multifunctional materials into TiO2 nanocrystalline film to form a novel ternary (G-TiO2NRs-Au) composite photoanode in dye-sensitized solar cells (DSSCs). The effects of G-TiO2NRs-Au on the properties of the photoanode and DSSC are investigated. Results show that, by blending G-TiO2NRs-Au, the light absorption and scattering of the photoanode are obviously improved, and the charge transfer resistance R2 and electron recombination are decreased, resulting in a significant enhancement in the short-circuit current density (J sc) and the photoelectric conversion efficiency (PCE) of the DSSCs.

Combined detection of plasma GATA5 and SFRP2 methylation is a valid noninvasive biomarker for colorectal cancer and adenomas.

Aim: To investigate GATA5, SFRP2, and ITGA4 methylation in plasma DNA as noninvasive biomarkers for colorectal cancer (CRC) or adenomas.

Methods: There were 57 CRC patients, 30 adenomas patients, and 47 control patients enrolled in this study. Methylation-specific polymerase chain reaction was used to determine the promoter methylation status of GATA5, SFRP2, and ITGA4 genes in plasma DNA, and their association with clinical outcome in CRC.

Detection of aberrant promoter methylation of RNF180, DAPK1 and SFRP2 in plasma DNA of patients with gastric cancer.

Gastric cancer (GC) is one of the most frequently diagnosed malignancies in East Asia, particularly in China, and remains the second leading cause of cancer-associated mortality worldwide. However, no effective plasma biomarkers have been identified for the diagnosis of patients with GC. The aim of this study was to investigate the DNA methylation status of the ring finger protein 180 (RNF180), secreted frizzled-related protein 2 (SFRP2) and death-associated protein kinase 1 (DAPK1) genes in the plasma samples of 57 GC patients and 42 control individuals with no malignant disease, and to evaluate the clinical utility of these makers.

[Raman spectroscopic characteristics of different rank coals and the relation with XRD structural parameters].

The Raman spectroscopic analysis for eleven different rank coals (57.58% to 94.01% of Cdaf, %) indicated that two distinct bands, i.