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Self-assembly variation of glycyrrhetinic acid epimers: Assembly mechanism and antibacterial efficacy between 18 α-GA and 18 β-GA.
Colloids Surf B Biointerfaces
October 2024
School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 102488, China. Electronic address:
Article Synopsis
- Studies show that the arrangement of chiral molecules greatly impacts how they self-assemble, but the effects of epimerization (changes in a single chiral center) had not been previously examined.
- This research focused on two epimers of glycyrrhetinic acid—18 α and 18 β—derived from Glycyrrhiza uralensis, which exhibit different medicinal properties.
- The findings revealed that 18 β-GA can create a nanoparticle structure through a 'head-to-tail' arrangement, while 18 α-GA struggles to assemble due to steric hindrance caused by a 'head-to-head' connection, highlighting how small structural changes can affect molecular behavior and potential applications in medicine.
2D BiMoO/ZnVO heterojunction photocatalyst for efficient photocatalytic reduction of CO to CO and CH.
J Colloid Interface Sci
December 2023
Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 17035, Republic of Korea. Electronic address:
Two-dimensional (2D) "face-to-face" heterojunctions promote interfacial charge transfer and separation in composite photocatalysts. Here, we report an efficient 2D/2D step-scheme (S-scheme) photocatalyst composed of BiMoO/ZnVO (BMO/ZVO), which has been designed and prepared via the self-assembly of BMO and ZVO nanoflakes. The heterojunction with an optimized composition of 30% BMO/ZVO showed extended light absorption capacity and enhanced separation efficiency of photogenerated carriers.
View Article and Find Full Text PDFSelf-Assembly of Copper Oxide Interfaced MnO for Oxygen Evolution Reaction.
Nanomaterials (Basel)
August 2023
Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea.
Designing efficient electrocatalytic systems through facile synthesis remains a formidable task. To address this issue, this paper presents the design of a combination material comprising two transition metal oxides (copper oxide and manganese oxide (CuO/MnO)), synthesized using a conventional microwave technique to efficiently engage as an active oxygen evolution reaction (OER) catalyst. The structural and morphological properties of the composite were confirmed by the aid of X-ray diffraction (XRD) studies, field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), and energy-dispersive spectrometry (EDS).
View Article and Find Full Text PDFChiral copper-hydride nanoclusters: synthesis, structure, and assembly.
Dalton Trans
March 2023
College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China.
An effective strategy is developed to synthesize a novel and stable layered Cu nanocluster using a one-pot reduction method. The cluster, with a molecular formula of [Cu(BuS)(PPh)H]BF which has been unambiguously characterized by single crystal X-ray diffraction analysis, exhibits different structures from previously reported analogues with core-shell geometries. In the absence of chiral ligands, the cluster displays intrinsic chirality owing to the non-covalent ligand-ligand interactions (, C-H⋯Cu interactions and C-H⋯π interactions) to lock the central copper core.
View Article and Find Full Text PDFFrom residue to resource: new insights into the synthesis of functionalized lignin micro/nanospheres by self-assembly technology for waste resource utilization.
Nanoscale
July 2022
College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China.
Among the most abundant biopolymers in the biosphere, lignin is a renewable aromatic compound that represents an untapped opportunity to create new biological products. However, the complex interlacing structures of cellulose, hemicellulose and lignin, as well as the unique properties of lignin, limit the utilization of value-added lignin. Lignin-based nanomaterials open the door for lignin applications in environmental pollutant remediation, biofuel production, biomedicine, and other fields.
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