Investigation of the preparation, characterization, and whitening activity of co-amorphous glabridin and oxymatrine
Literature Information
Peiyi Liang, Yi Hu, Zhuxian Wang, Yinglin Guo, Hongkai Chen, CuiPing Jiang, Quanfu Zeng, Chunyan Shen, Yufan Wu, Li Liu, Yankui Yi, Hongxia Zhu, Zhijun Yang, Qiang Liu
Glabridin (Gla) is a natural active ingredient extracted from licorice root with good whitening activity. However, its poor solubility limits its further application. Therefore, this study aimed to develop a novel co-amorphous Gla–OMT raw material using oxymatrine (OMT) as a co-former, aiming to improve its physicochemical properties and enhance its whitening activity. Firstly, the formation of co-amorphous Gla–OMT was confirmed by powder X-ray diffraction (PXRD) and differential scanning calorimetry (DSC). Subsequently, FT-IR, NMR, and molecular dynamics simulations were used to investigate the interaction between the co-amorphous Gla–OMT molecules, and solubility experiments and supersaturation dissolution experiments were used to investigate the solubilization of the co-amorphous Gla–OMT. In addition, the in vitro release mechanism of the co-amorphous Gla–OMT was investigated using a Franz diffusion cell and its biosafety and whitening activity were evaluated using cell experiments. In conclusion, the successful preparation of co-amorphous Gla–OMT and the evaluation of its whitening activity in this study have significant implications for guiding the development and application of whitening products in the future.
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Source Journal
CrystEngComm

CrystEngComm is the forum for the design and understanding of crystalline materials. We welcome studies on the investigation of molecular behaviour within crystals, control of nucleation and crystal growth, engineering of crystal structures, and construction of crystalline materials with tuneable properties and functions. We publish hypothesis-driven research into… how crystal design affects thermodynamics, phase transitional behaviours, polymorphism, morphology control, solid state reactivity (crystal-crystal solution-crystal, and gas-crystal reactions), optoelectronics, ferroelectric materials, non-linear optics, molecular and bulk magnetism, conductivity and quantum computing, catalysis, absorption and desorption, and mechanical properties. Using Techniques and methods including… Single crystal and powder X-ray, electron, and neutron diffraction, solid-state spectroscopy, spectrometry, and microscopy, modelling and data mining, and empirical, semi-empirical and ab-initio theoretical evaluations. On crystalline and solid-state materials. We particularly welcome work on MOFs, coordination polymers, nanocrystals, host-guest and multi-component molecular materials. We also accept work on peptides and liquid crystals. All papers should involve the use or development of a design or optimisation strategy. Routine structural reports or crystal morphology descriptions, even when combined with an analysis of properties or potential applications, are generally considered to be outside the scope of the journal and are unlikely to be accepted.