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[Vacuum ultraviolet laser dissociation and proteomic analysis of halogenated peptides].
Se Pu
February 2025
CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
Chemical modifications are widely used in research fields such as quantitative proteomics and interaction analyses. Chemical-modification targets can be roughly divided into four categories, including those that integrate isotope labels for quantification purposes, probe the structures of proteins through covalent labeling or cross-linking, incorporate labels to improve the ionization or dissociation of characteristic peptides in complex mixtures, and affinity-enrich various poorly abundant protein translational modifications (PTMs). A chemical modification reaction needs to be simple and efficient for use in proteomics analysis, and should be performed without any complicated process for preparing the labeling reagent.
View Article and Find Full Text PDFValue addition to wastes: photo/sono-catalytic and antimicrobial performance of nickel ferrite derived using iron tailing and Raney nickel catalyst processing wastes.
Environ Sci Pollut Res Int
January 2025
Department of Chemistry, Utkal University, Bhubaneswar, 751 004, Odisha, India.
This research highlights a sustainable approach for the design and synthesis of a magnetic nickel ferrite (NiFeO) catalyst reutilizing industrial waste, specifically iron ore tailing and Raney nickel catalyst processing waste, by simple co-precipitation method. Transforming waste materials into high-performance catalysts, this study aligns with the principles of a circular economy, addressing both environmental waste and pollution. Structural characterization by X-ray diffraction (XRD) and microscopic (FESEM and TEM) revealed the formation of well crystalline nano ferrite with NiFeO nanoparticles with cubic spinel structure.
View Article and Find Full Text PDFHydrogel Biocomposite of Alginate and Mucilage of Cactus in the Adsorption of Methylene Blue in Aqueous Solution.
ACS Omega
January 2025
Department of Food Engineering, Technology Center, State University of Maringá, Maringá, Paraná 87020-900, Brazil.
This work analyzes the production of a hydrogel composed of mucilage from the cactus (OFI) and sodium alginate. In obtaining the new material, green synthesis was used, free of chemical compounds, and applied in the treatment of textile effluent for the adsorption of methylene blue (MB). The hydrogel was characterized by FT-IR, XRD, SEM, and zeta potential.
View Article and Find Full Text PDFSingle-Atom Iridium-doped Carbon Dots Nanozyme with High Peroxidase-Like Activity as Colorimetric Sensors for Multimodal Detection of Mercury Ions.
Small
January 2025
Chongqing Key Laboratory of Prevention and Treatment for Occupational Diseases and Poisoning, First Affiliated Hospital of Chongqing Medical and Pharmaceutical College, Chongqing, 400060, China.
Nanozyme-based colorimetric sensors are promising approaches for environmental monitoring, food safety, and medical diagnostics. However, developing novel nanozymes that exhibit high catalytic activity, good dispersion in aqueous solution, high sensitivity, selectivity, and stability is challenging. In this study, for the first time, single-atom iridium-doped carbon dot nanozymes (SA Ir-CDs) are synthesized via a simple in situ pyrolysis process.
View Article and Find Full Text PDFA reliable LC-MS/MS method for the quantification of natural amino acids in human plasma and its application in clinic.
J Pharm Biomed Anal
January 2025
Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; Jinhua Institute of Zhejiang University, Jinhua 321036, China; State Key Laboratory of Advanced Drug Delivery and Release Systems, Zhejiang University, Hangzhou 310058, China. Electronic address:
A simple and fast LC-MS/MS method was developed and validated for simultaneous quantification of 20 L-amino acids (AAs) in human plasma. Chromatographic separation was achieved on an Agilent AdvanceBio Hilic column within 15 min via gradient elution with an aqueous solution containing 5 mM ammonium formate, 5 mM ammonium acetate and 0.1 % formic acid and an organic mobile phase containing 0.
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