There is increasing interest in the discovery and application of molecular flasks-supramolecular host structures capable of catalyzing organic reactions. Reminiscent of enzymes due to possessing a host cavity akin to an active site, molecular flasks can exhibit complex catalytic mechanisms and in many cases provide selectivity not achievable in bulk solvent. In this Review, we aim to organize the increasingly diverse examples through a two-part structure. In part one, we provide an overview of the different acceleration modes that operate within molecular flasks, while in part two we showcase, through selected examples, the different types of selectivity that are obtainable through the use of molecular flasks. Particular attention is given to examples that are relevant to current challenges in synthetic organic chemistry. We believe that this structure makes the field more approachable and thus will stimulate the development of novel applications of molecular flasks.
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http://dx.doi.org/10.1002/anie.202412622 | DOI Listing |
Angew Chem Int Ed Engl
December 2024
Fudan University, School of Pharmacy, CHINA.
Drimane-type merosesquiterpenoids (DMT) are a class of natural products with diverse structures and broad biological activity. Classical DMT synthesis relies on atom-inefficient plant-derived chiral pool building blocks, while alternative drimane-type building blocks such as drimenol and albicanol offer more direct routes but face production challenges. In this study, we engineered a microbial platform for efficient production of these building blocks.
View Article and Find Full Text PDFJ Agric Food Chem
December 2024
Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.
Utilization of microbial hosts to produce natural plant products is regarded as a promising and sustainable approach. However, achieving highly efficient production of terpenoids using microorganisms remains a significant challenge. Here, mevalonate, a building block of terpenoids, was used as a demo product to explore the potential metabolic constraints for terpenoid biosynthesis in .
View Article and Find Full Text PDFTissue Cell
November 2024
Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Department of Molecular Medicine, Faculty of Advanced Medical Technologies, Golestan University of Medical Sciences, Gorgan, Iran. Electronic address:
Background And Aims: Stem cells from human exfoliated deciduous teeth (SHED) are multi-potent mesenchymal stem/stromal cells (MSCs) and are inspected a favorable, non-invasive source beneficial to stem cell-mediated regeneration of damaged tissues. Our aim was to establish and characterize a non-immortalized SHED cell line as an accessible resource and novel platform for stem cell research and tissue regeneration studies.
Methods: A Healthy exfoliated deciduous molar was extracted from a 12-year-old girl and shipped to an animal cell culture laboratory.
Enzyme Microb Technol
February 2025
The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, PR China. Electronic address:
Glucosamine (GlcN), as one of the important derivatives of D-glucose, is formed by the substitution of the hydroxyl group at position 2 of glucose with an amino group. As a bioactive amino monosaccharide, GlcN is known for its various biological effects, including immune enhancement, antioxidant, anti-inflammatory, hepatoprotective, joint pain relief, and alleviation of osteoporosis. These properties highlight the broad applications of GlcN and its derivatives in pharmaceuticals, cosmetics, food production, and other fields, underscoring their promising prospects.
View Article and Find Full Text PDFGenes (Basel)
November 2024
AMES, Polidiagnostic Strumental Centre, Srl, 80013 Naples, Italy.
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