Wu Wensheng, Li Zhiwei, Feng Dachun, Tang Qing, Liu Shuijiao, Lin Wenjing
Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China.
College of Information Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
Polymers (Basel). 2025 Mar 3;17(5):678. doi: 10.3390/polym17050678.
In this paper, the dissipative particle dynamics (DPD) method is used to simulate the self-assembly process, appearance, mesoscopic structure, and wrapping properties of microcapsules formed with citral as the core material and chitosan and sodium alginate as the single-wall materials, and with citral as the core material and chitosan-sodium alginate, chitosan-methylcellulose, sodium alginate-chitosan, and sodium alginate-methylcellulose as the double-wall materials. The effects of chitosan content and wall material composition on the structure, morphology, encapsulation performance, and stability of microcapsules are compared and analyzed. In addition, the microcapsules are deeply analyzed by using the mesoscopic structure, radial distribution function, and diffusion coefficient. This study provides a new idea and method for the preparation of citral microcapsules, and is of great significance for the design and development of new composite wall microcapsules.
本文采用耗散粒子动力学（DPD）方法，模拟了以柠檬醛为芯材、壳聚糖和海藻酸钠为单壁材料，以及以柠檬醛为芯材、壳聚糖 - 海藻酸钠、壳聚糖 - 甲基纤维素、海藻酸钠 - 壳聚糖和海藻酸钠 - 甲基纤维素为双壁材料形成的微胶囊的自组装过程、外观、介观结构和包裹性能。比较并分析了壳聚糖含量和壁材组成对微胶囊结构、形态、包封性能和稳定性的影响。此外，利用介观结构、径向分布函数和扩散系数对微胶囊进行了深入分析。本研究为柠檬醛微胶囊的制备提供了新思路和方法，对新型复合壁微胶囊的设计与开发具有重要意义。
