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An isostructural pair of extremely rare, permanently microporous sulfonate-based metal-organic frameworks (MOFs) having a novel topology has been reported here by integration of rationally chosen building units. The compounds bear polar sites in the pore surfaces and exhibit selective adsorption of CO, which features among the highest reported uptakes in the domain of organosulfonate-based MOFs. The compounds also exhibit multifunctionality for C-cyclic hydrocarbon separation and selective detection of neurotransmitter nitric oxide. Such multifunctional behavior on the basis of permanent porosity has been rarely observed for sulfonate-based MOFs. The efficacy of the synthesis approach is further highlighted by the resistance over a wide pH range and promising feasibility of reticular chemistry in porous organosulfonate-based systems.
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http://dx.doi.org/10.1021/acsami.8b14420 | DOI Listing |
J Am Chem Soc
September 2025
State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.
The discovery of new weak supramolecular interactions and supramolecular synthons is essential for directing self-assembly processes with enhanced precision, diversity, and functionality in complex molecular architectures. Here, we report the controlled self-assembly of diverse supramolecular architectures by a new directional bonding approach through the integration of radical-based dynamic covalent chemistry and supramolecular synthons. A novel macrocyclic synthon, , with a linear direction is constructed via radical-based dynamic covalent bonds from the phenothiazine building block substituted with two dicyanomethyl radicals.
View Article and Find Full Text PDFFood Res Int
November 2025
State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China. Electronic address:
Osteopontin (OPN), a multifunctional milk protein essential for bioactive functions, remains challenging to isolate efficiently due to the limited specificity of conventional methods. We developed hydrogel-based molecularly imprinted membranes (MIMs) for selective OPN recognition. Dimethylaminopropyl methacrylamide (DMAPMA) and N-isopropylacrylamide (NIPAM) were selected as functional monomers based on molecular docking and molecular dynamics (MD) simulations, ensuring optimized binding interactions.
View Article and Find Full Text PDFBiosens Bioelectron
September 2025
College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Qianjin Street 2699, Changchun, 130012, China. Electronic address:
Papillary thyroid carcinoma (PTC) is the most prevalent form of thyroid cancer with a high incidence among endocrine malignancies. It tends to metastasize early in lymph nodes and differs markedly from other subtypes in biological behavior, clinical management, and prognosis. Therefore, accurately distinguishing PTC from other pathological subtypes is crucial for guiding diagnosis and treatment decisions.
View Article and Find Full Text PDFChem Sci
September 2025
Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Institute of Modern Optics and Centre of Single-Molecule Science, Nankai University Tianjin 300350 China
The keto-enol tautomerism, involving a reversible isomerization of the molecule, plays a critical role in organic synthesis, biological activity, and molecular-scale charge transport. It is therefore essential to manipulate the process of keto-enol tautomerism. Unlike typical ketones, β-diketones exist dominantly in the enol form and it is a great challenge to realize enol-keto tautomerism due to the formation of intramolecular hydrogen bonds in the enol form.
View Article and Find Full Text PDFJ Oral Biol Craniofac Res
August 2025
Molecular Biology Lab, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, TN, India.
Background: The multifunctional protein SND1 (Staphylococcal Nuclease and Tudor Domain Containing 1) is involved in transcriptional control, RNA metabolism, and tumour development. While its role in several cancer types has been studied, little is known about its importance in head and neck squamous cell carcinoma (HNSCC). This study investigates the expression patterns, clinical relevance, and functional role of SND1 in HNSCC.
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