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Construction of hierarchically porous covalent organic frameworks with enhanced enzyme accessibility for sensitive dopamine detection.
Talanta
January 2025
Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China. Electronic address:
Immobilization of fragile enzymes is vital to expanding its application in the extracellular environment. Covalent organic frameworks (COFs), as a class of emerging porous materials, are promising platforms for enzyme immobilization owing to their high porosity and tunable structure. However, the interior pores of COFs often fail to play their roles because of inaccessibility, resulting in decreased performance of immobilized enzymes.
View Article and Find Full Text PDFRetraction notice to "Degradation of cefadroxil drug by newly designed solar light responsive alcoholic template-based lanthanum ferrite nanoparticles" [Environ. Res. 231P3 (2023) 116241].
Environ Res
January 2025
Department of Biology, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia.
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/locate/withdrawalpolicy).
View Article and Find Full Text PDFSolvothermal Template-Induced Hierarchical Porosity in Covalent Organic Frameworks: A Pathway to Enhanced Diffusivity.
Adv Mater
January 2025
Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany.
The rapid advancement of covalent organic frameworks (COFs) in recent years has firmly established them as a new class of molecularly precise and highly tuneable porous materials. However, compared to other porous materials, such as zeolites and metal-organic frameworks, the successful integration of hierarchical porosity into COFs remains largely unexplored. The challenge lies in identifying appropriate synthetic methods to introduce secondary pores without compromising the intrinsic structural porosity of COFs.
View Article and Find Full Text PDFCucurbit[6]uril host-guest interaction assisted N-terminal epitope imprinted particles for cytochrome c recognition prepared by reversible addition-fragmentation chain transfer strategy.
Talanta
January 2025
Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, People's Republic of China.
A novel strategy for cytochrome c selective recognition assisted with cucurbit[6]uril by host-guest interaction via N-terminal epitope imprinting and reversible addition-fragmentation chain transfer (RAFT) polymerization was developed. N-terminal nonapeptide of cytochrome c (GI-9) was used as the epitope template to achieve highly selective recognition of cytochrome c. As a common supramolecule in recent years, cucurbit[6]uril can encapsulate the butyrammonium group of lysine residue to capture the peptide and improve the corresponding spatial orientation by the host-guest interaction for GI-9 or cytochrome c recognition.
View Article and Find Full Text PDFSubstituent-Driven Anion-Binding Selectivity in Aliphatic Chain-Substituted 1,2-Phenylene Urea Macrocycles and Optimized Synthetic Methodology.
ChemistryOpen
January 2025
Department of Organic Chemistry, University of Chemistry and Technology Prague, Technická 5, Prague 6, 16628, Czech Republic.
1,2-Phenylene tetraurea macrocycles recently attracted attention as self-assembled channel-making compounds with high selectivity to chlorides. Here, we report on the introduction of aliphatic chains in the periphery of the 1,2-phenylene tetraurea macrocycle, which led to deterioration in the ability of the macrocycle to form channels and to a reversal of anion binding preferences in favour of dihydrogen phosphate. In addition, we have developed a new method of synthesis of 1,2-phenylene tetraurea macrocycle, using a direct click of two diamino ureido derivatives by triphosgene in the presence of chloride template.
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