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| http://dx.doi.org/10.1091/mbc.E20-01-0039 | DOI Listing |
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Electro-assisted solid-phase microextraction of Hg(II) in rice and water samples using NiCo-LDH-MXene fiber.
Food Chem
December 2024
Electroanalytical Chemistry Research Laboratory, Faculty of Sciences, Azarbaijan Shahid Madani University, P.O. Box: 53714-161, Tabriz, Iran. Electronic address:
Food and water contamination with heavy metals is still a significant public health issue, necessitating development of simple and rapid analytical methods. Herein, a novel electro-assisted solid-phase microextraction (EA-SPME) method was developed to determine mercury (Hg(II)) in rice and water samples. A novel SPME-fiber coating was prepared through electrosynthesis of NiCo-layered double hydroxide (NiCo-LDH) onto MXene deposited onto the graphenized pencil fiber.
View Article and Find Full Text PDFComprehensive Optimization of Packing Parameters for Hydraulic-Packed Capillary Columns.
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April 2025
Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, and Cancer Center, School of Medicine, Tongji University, Shanghai, China.
Rationale: The performance of the capillary column directly impacts the separation efficiency of complex sample in liquid chromatography-mass spectrometry-based proteomics studies. The hydraulic packing system offers an effective solution by reducing packing time and expediting the preparation process of column preparation. However, its operational complexity and strict parameter regulation requirements hinder efficient application.
View Article and Find Full Text PDFIn situ architecture of a nucleoid-associated biomolecular co-condensate that regulates bacterial cell division.
Proc Natl Acad Sci U S A
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Department of Ecophysiology, Max Planck Institute for Terrestrial Microbiology, Marburg 35043, Germany.
In most bacteria, cell division depends on the tubulin-homolog FtsZ that polymerizes in a GTP-dependent manner to form the cytokinetic Z-ring at the future division site. Subsequently, the Z-ring recruits, directly or indirectly, all other proteins of the divisome complex that executes cytokinesis. A critical step in this process is the precise positioning of the Z-ring at the future division site.
View Article and Find Full Text PDFTopological confinement by a membrane anchor suppresses phase separation into protein aggregates: Implications for prion diseases.
Proc Natl Acad Sci U S A
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Department Biochemistry of Neurodegenerative Diseases, Institute of Biochemistry and Pathobiochemistry, Ruhr University Bochum, Bochum 44801, Germany.
Protein misfolding and aggregation are a hallmark of various neurodegenerative disorders. However, the underlying mechanisms driving protein misfolding in the cellular context are incompletely understood. Here, we show that the two-dimensional confinement imposed by a membrane anchor stabilizes the native protein conformation and suppresses liquid-liquid phase separation (LLPS) and protein aggregation.
View Article and Find Full Text PDFCascade of phase transitions in a dipeptide supramolecular assembly triggered by a single fatty acid.
Colloids Surf B Biointerfaces
December 2024
Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:
Significant progress has been achieved with diversity of short peptide supramolecular assemblies. However, their programmable phase modulation by single stimulus remains a great challenge. Herein, we demonstrate a dipeptide supramolecular system undergoes sequentially coupled phase transitions upon hydrogen bonding association and dissociation triggered by a single fatty acid.
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