Carbonylation is an effective way to introduce carbonyl groups into organic chemicals. However, the known zeolite candidates for carbonylation are very few. Here, we discovered a new zeolite EU-12 that shows excellent catalytic performance for carbonylation reactions, inserting carbonyl groups into dimethyl ether (DME) to produce methyl acetate (MA). This finding adds a brand new zeolite to the solid catalyst family for carbonylation reaction.
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http://dx.doi.org/10.1039/c8cc08411d | DOI Listing |
Heliyon
October 2023
Department of Gerontology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing-400010, China.
The biomacromolecule silk fibroin (SF) may be constructed to promote biomimetic nucleation and nanostructures of inorganic nanomaterials, offering it a promising candidate for use in various biomimetic applications. We combined SF-NPs and ZIF-8-NPs to fabricate new drug vehicles that effectively release the drug. SF nanoparticles (SF-NPs) were assembled into quercetin (QCT), a myocardial drug added to fabricate QSF-NPs.
View Article and Find Full Text PDFSoft Matter
July 2023
Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China.
Intrinsic relaxation processes determine the crucial properties of glass, yet their underlying mechanisms are far from well understood. The brand-new glass-forming metal-organic frameworks (MOFs) provide desirable opportunities for looking inside glass relaxation, especially the secondary β-relaxation phenomenon and mechanism. For a representative zeolitic imidazolate framework-62 (ZIF-62) glass, reliable and fine powder mechanical spectroscopy was performed based on home-made mountings combined with a commercial dynamical mechanical analyzer.
View Article and Find Full Text PDFWorld J Gastroenterol
December 2022
Glock Health, Science and Research GmbH, Deutsch-Wagram 2232, Lower Austria, Austria.
Background: Irritable bowel syndrome (IBS) is a highly prevalent gastrointestinal disorder with poor response to treatment. IBS with predominant diarrhea (IBS-D) is accompanied by abdominal pain as well as high stool frequency and urgency. Purified clinoptilolite-tuff (PCT), which is approved by the Food and Drug Administration for use as a dietary supplement with the brand name G-PUR, has previously shown therapeutic potential in other indications based on its physical adsorption capacity.
View Article and Find Full Text PDFDent Res J (Isfahan)
February 2022
Department of Microbiology, Goa Medical College and Hospital, Bambolim, Goa, India.
Background: There is generally a lack of compliance in patients who report with oral candidiasis, as they are advised to temporarily stop wearing the prosthesis and are prescribed topical antifungals which are generally unpleasant to taste and follow a rigorous schedule. Furthermore, with the alarming evidence of drug resistance, there is a need for an enhanced drug and drug delivery system. The aim of the study was to determine the dose-dependent antifungal efficacy of silver-zinc zeolite nanoparticles (SZZ-NPs) when incorporated in two brands of soft denture liners against .
View Article and Find Full Text PDFFood Chem
August 2022
College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China. Electronic address:
Metalloporphyrin and gold nanoparticles (AuNPs) were fixed on the surface of hollow zeolite imidazole framework-8 (HZIF-8) by cation exchange and cross-linking reaction. The obtained hybrid nanozyme, Au/HZIF-8@TCPP(Fe), was fully characterized by TEM, HRTEM, EDS element mapping and XPS. Then, its peroxidase-like activity was explored with Km of 1.
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