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[Recent progress in magnetic covalent organic framework materials for the enrichment and detection of typical organic pollutants].
Se Pu
February 2025
College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China.
Trace contaminants are toxic and their widespread presence in the environment potentially threatens human health. The levels of these pollutants are often difficult to determine directly using instruments owing to the complexities of environment matrices. Hence, pretreatment steps, such as sample purification and concentration, are key along with various processes that enhance the accuracy and sensitivity of the detection method.
View Article and Find Full Text PDFMicrobial Carbon Use Efficiency and Growth Rates in Soil: Global Patterns and Drivers.
Glob Chang Biol
January 2025
Department of Soil Science of Temperate Ecosystems, Department of Agricultural Soil Science, University of Goettingen, Göttingen, Germany.
Carbon use efficiency (CUE) of microbial communities in soil quantifies the proportion of organic carbon (C) taken up by microorganisms that is allocated to growing microbial biomass as well as used for reparation of cell components. This C amount in microbial biomass is subsequently involved in microbial turnover, partly leading to microbial necromass formation, which can be further stabilized in soil. To unravel the underlying regulatory factors and spatial patterns of CUE on a large scale and across biomes (forests, grasslands, croplands), we evaluated 670 individual CUE data obtained by three commonly used approaches: (i) tracing of a substrate C by C (or C) incorporation into microbial biomass and respired CO (hereafter C-substrate), (ii) incorporation of O from water into DNA (O-water), and (iii) stoichiometric modelling based on the activities of enzymes responsible for C and nitrogen (N) cycles.
View Article and Find Full Text PDFPolycystin-1 regulates tendon-derived mesenchymal stem cells fate and matrix organization in heterotopic ossification.
Bone Res
January 2025
Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, 410008, China.
Mechanical stress modulates bone formation and organization of the extracellular matrix (ECM), the interaction of which affects heterotopic ossification (HO). However, the mechanically sensitive cell populations in HO and the underlying mechanism remain elusive. Here, we show that the mechanical protein Polysyctin-1 (PC1, Pkd1) regulates CTSK lineage tendon-derived mesenchymal stem cell (TDMSC) fate and ECM organization, thus affecting HO progression.
View Article and Find Full Text PDFInvestigating residual trace metals in recombinant monoclonal antibodies to facilitate drug development with LC-UV-ICPMS-HRMS.
Anal Chim Acta
February 2025
Regeneron Pharmaceuticals, Inc., Tarrytown, NY, 10591-6707, USA.
Background: The biopharmaceutical industry is increasingly interested in the analysis of trace metals due to their significant impact on product quality and drug safety. Certain metals can potentially accelerate the formation of degradants or aggregates in biotherapeutic proteins, leading to drug product quality concerns. A better understanding of metal-mAb interactions would aid in the development of purification processes and formulations, thereby ensuring better drug quality and safety.
View Article and Find Full Text PDFLattice plainification and band engineering lead to high thermoelectric cooling and power generation in n-type BiTe with mass production.
Natl Sci Rev
February 2025
School of Materials Science and Engineering, Beihang University, Beijing 100191, China.
Thermoelectrics can mutually convert between thermal and electrical energy, ensuring its utilization in both power generation and solid-state cooling. BiTe exhibits promising room-temperature performance, making it the sole commercially available thermoelectrics to date. Guided by the lattice plainification strategy, we introduce trace amounts of Cu into n-type Bi(Te, Se) (BTS) to occupy Bi vacancies, thereby simultaneously weakening defect scattering and modulating the electronic bands.
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