利用二次谐波产生显微镜对结晶麦芽糊精颗粒的结构进行研究。
Investigation into the structure of crystalline maltodextrin particles by second harmonic generation microscopy.
作者信息
Bennett Elisha, Harvey MacAulay, Cisek Richard, Tokarz Danielle
机构信息
Department of Chemistry, Saint Mary's University, 923 Robie Street, Halifax, Nova Scotia, B3H 3C3, Canada.
出版信息
Biomed Opt Express. 2023 Feb 7;14(3):1027-1040. doi: 10.1364/BOE.481689. eCollection 2023 Mar 1.
Crystalline maltodextrin particles (CMPs) were investigated using polarization-sensitive second harmonic generation (PSHG) microscopy to determine changes in their crystalline organization due to crystal type (A- and B-type) and hydration for application as starch model systems. Optimization of their synthesis resulted in intense SHG emission, exceeding maize starch granules. PSHG data showed that CMPs have a radial macrostructure with respect to their nucleation regions, fitted values of 2-6, and some similar hydration variations, mimicking starch granules and validating that CMPs may be used as a model system for improved understanding of the SHG properties and applications of starch granules.
使用偏振敏感二次谐波产生（PSHG）显微镜对结晶麦芽糊精颗粒（CMPs）进行了研究，以确定由于晶体类型（A型和B型）和水合作用导致的其晶体结构变化，从而将其用作淀粉模型系统。对其合成的优化导致了强烈的二次谐波发射，超过了玉米淀粉颗粒。PSHG数据表明，CMPs相对于其成核区域具有径向宏观结构，拟合值为2-6，并且存在一些类似的水合变化，模拟了淀粉颗粒，并验证了CMPs可作为模型系统，用于更好地理解淀粉颗粒的二次谐波特性和应用。
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