Transformative characteristics of aquatic and soil organic matter in a constructed wetland consisting of Acorus, Nuphar, and Typha ponds.

This study investigated the transformative characteristics of dissolved organic matter (DOM) within constructed wetlands (CWs) and elucidated the distinct interplay between aquatic DOM and soil organic matter (SOM) during different treatment stages. Through comprehensive analyses, including water quality assessments, molecular weight distribution, fluorescence spectrometry, and molecular structure analysis, our investigation revealed profound transformations in aquatic DOM characteristics facilitated by CWs. Notably, the significant increase in dissolved organic carbon (DOC) concentrations within the Typha pond underscored the pivotal role of anaerobic decomposition in organic matter accumulation.

Nucleic Acid Amplification Circuit-Based Hydrogel (NACH) Assay for One-Step Detection of Metastatic Gastric Cancer-Derived Exosomal miRNA.

Gastric cancer (GC) is recognized as the fifth most prevalent malignant tumor worldwide. It is characterized by diverse clinical symptoms, treatment responses, and prognoses. In GC prognosis, the promotion of epithelial-mesenchymal transition (EMT) fosters cancer cell invasion and metastasis, thereby triggering the dissemination of tumor cells.

Mini-cores of activated carbon block simulate full-sized performance for removing organics and arsenate from drinking water.

Activated carbon block (ACB) filters are widely used in point-of-use (POU) drinking technology to remove tastes, odors, and organic compounds from drinking water, and when modified can even remove inorganic pollutants (e.g., arsenate, lead, copper).