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Bioinspired Photo-Thermal Catalytic System using Covalent Organic Framework-based Aerogel for Synchronous Seawater Desalination and H2O2 Production.
Angew Chem Int Ed Engl
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Nankai University, School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule-Based Material Chemistry, CHINA.
Efficient utilization of solar energy is widely regarded as a crucial solution to addressing the energy crisis and reducing reliance on fossil fuels. Coupling photothermal and photochemical conversion can effectively improve solar energy utilization yet remains challenging. Here, inspired by the photosynthesis system in green plants, we report herein an artificial solar energy converter (ASEC) composed of light-harvesting units as solar collector and oriented ionic hydrophilic channels as reactors and transporters.
View Article and Find Full Text PDFDiscovery and Total Synthesis of a New Class of Minor Immunosuppressive Plant Sesterterpenoids.
Angew Chem Int Ed Engl
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Kunming Institute of Botany Chinese Academy of Sciences, State Key Laboratory of Phytochemistry and Plant Resources in West China, Lanhei Road 132, Heilongtan, 650201, Kunming, CHINA.
Plant sesterterpenoids are an extremely rare family of natural products that generally possess novel chemical structures and diverse biological activities. Here, we report the discovery of an unprecedented group of minor plant sesterterpenoids, gracilisoids B-E (2-5), which feature two types of highly functionalized bicyclo[3.2.
View Article and Find Full Text PDFAsymmetric Total Syntheses of Sarglamides A, C, and E.
J Org Chem
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State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 Gansu, P. R. China.
The asymmetric total syntheses of sarglamides A, C, and E in concise and protecting group free fashion is disclosed. Key steps involve an -selective Diels-Alder reaction to construct the bicyclo[2.2.
View Article and Find Full Text PDFBiomimetic and protective effects of bioactive toothpastes on eroded enamel surfaces.
Braz Oral Res
January 2025
Universidade Federal da Paraíba - UFPB, Health Science Center Department of Clinical and Community Dentistry, João Pessoa, PB, Brazil.
This study aimed to evaluate the effectiveness of bioactive toothpastes in remineralizing eroded enamel surfaces in vitro. Bovine enamel blocks (n = 48) were obtained and classified into untreated, demineralized, and treated areas. Specimens were randomly classified into six groups (n = 8 each): fluoride-free toothpaste (NCT), Colgate Total 12 (PCT), Sensodyne Repair and Protect (SRP), Sensodyne Pronamel (SPE), Regenerador + Sensitive (RGS), and RGS/calcium booster (RCB).
View Article and Find Full Text PDFImpact of composition and surfactant-templating on mesoporous bioactive glasses structural evolution, bioactivity, and drug delivery property.
J Biomater Appl
January 2025
Biomedical Engineering Graduate Program, Toronto Metropolitan University, Toronto, ON, Canada.
This study explores mesoporous bioactive glasses (MBGs) that show promise as advanced therapeutic delivery platforms owing to their tailorable porous properties enabling enhanced drug loading capacity and biomimetic chemistry for localized, sustained release. This work systematically investigates the complex relationship between MBG composition and surfactant templating on structural evolution, bioactive response, resultant drug loading efficiency and release. A total of 12 samples of sol-gel-derived MBG were synthesized using cationic and non-ionic structure-directing agents (cetyltrimethylammonium bromide, Pluronic F127 and P123) while modulating the SiO/CaO content, generating MBG with surface areas of 60-695 m/g.
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