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Selectivity control by zeolites during methanol-mediated CO hydrogenation processes.
Chem Soc Rev
January 2025
Interdisciplinary Institute of NMR and Molecular Sciences, School of Chemistry and Chemical Engineering, The State Key Laboratory of Refractories and Metallurgy, Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, P. R. China.
The thermocatalytic conversion of CO with green or blue hydrogen into valuable energy and commodity chemicals such as alcohols, olefins, and aromatics emerges as one of the most promising strategies for mitigating global warming concerns in the future. This process can follow either a CO-modified Fischer-Tropsch synthesis route or a methanol-mediated route, with the latter being favored for its high product selectivity beyond the Anderson-Schulz-Flory distribution. Despite the progress of the CO-led methanol-mediated route over bifunctional metal/zeolite catalysts, challenges persist in developing catalysts with both high activity and selectivity due to the complexity of CO hydrogenation reaction networks and the difficulty in controlling C-O bond activation and C-C bond coupling on multiple active sites within zeolites.
View Article and Find Full Text PDFSynergistic utilization of glucose and xylose for the myo-inositol biosynthesis in recombinant BL21.
Prep Biochem Biotechnol
January 2025
College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang Province, People's Republic of China.
Myo-inositol is an active sugar alcohol which has important physiological functions. In this study, an engineered strain that could simultaneously utilize glucose and xylose to produce myo-inositol was constructed, and its fermentation performance was determined. Firstly, the gene was deleted to make BL21 capable of utilizing glucose and xylose simultaneously as mixed carbon source.
View Article and Find Full Text PDFA ROS-responsive hydrogel encapsulated with matrix metalloproteinase-13 siRNA nanocarriers to attenuate osteoarthritis progression.
J Nanobiotechnology
January 2025
State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, People's Republic of China.
RNA interference (RNAi) and oxidative stress inhibition therapeutic strategies have been extensively utilized in the treatment of osteoarthritis (OA), the most prevalent degenerative joint disease. However, the synergistic effects of these approaches on attenuating OA progression remain largely unexplored. In this study, matrix metalloproteinase-13 siRNA (siMMP-13) was incorporated onto polyethylenimine (PEI)-polyethylene glycol (PEG) modified FeO nanoparticles, forming a nucleic acid nanocarrier termed si-Fe NPs.
View Article and Find Full Text PDFSynergistic effects of reduced graphene oxide on the antibacterial activity of calcium hydroxide-based intracanal medicaments containing different vehicles.
J Oral Sci
January 2025
Department of Conservative Dentistry, School of Dentistry and Institute of Oral Bioscience, Jeonbuk National University.
Purpose: This study investigated the synergistic effects of reduced graphene oxide (RGO) on the antibacterial activity of three calcium hydroxide-based intracanal medicaments with different vehicles.
Methods: Multispecies biofilms were cultured in a bovine root canal model. Intracanal medicaments containing nonaqueous vehicles, including N-methyl-2-pyrrolidone (NMP; CleaniCal), propylene glycol (PG; UltraCal XS), and polyethylene glycol (PEG; Calcipex II), were placed in the model.
Synergistic/antagonistic antimicrobial effects of cosmetic ingredients in combination with 1,2-hexanediol.
J Microorg Control
January 2025
S&RA Center, LG H&H （LG Household & Healthcare）.
With the rise of the clean beauty trend in the cosmetics and personal care industry, consumers' interest in cosmetic ingredients, especially preservatives, continues to grow. Paraben, previously the most used preservative in cosmetics, has been excluded from many products owing to its potential risks. Therefore, a movement to lower the content of various preservatives is ongoing.
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