AI 中文总结
本文通过计算机模拟研究束状和网格状接枝微图案对LDL吸附的影响，发现束状图案因尺寸匹配使吸附效率峰值加倍，并扩展了吸附剂应用范围。
AI 中文摘要
实验上报道了旨在降低低密度脂蛋白（LDLs）水平的光可再生聚合物吸附剂。此前，我们针对均匀接枝链的体系建立了一个介观模型，并考察了链长和接枝密度所起的作用[Ilnytskyi, et al., Processes, 2023, 11, 2913]。本文将该分析扩展到束状和网格状接枝微图案的情形。束状排列是最有效的，其吸附效率呈现出低密度峰和高密度峰。前者峰的高度是均匀接枝时的两倍，这是由于LDLs尺寸与微图案间距相匹配的结果。吸附等温线能很好地用Langmuir或逻辑斯蒂增长形式拟合，表明其增长速率高于均匀接枝情形。高密度峰仅存在于该微图案中，并扩展了吸附剂的应用范围。在最高的LDL浓度下，LDLs自组装成紧密堆积的立方相，从而阻碍了吸附。
英文摘要
Photorenewable polymer adsorbents, aimed at reducing the low density lipoproteins (LDLs) level, are reported experimentally. Previously we developed a mesoscale model for this setup with uniformly grafted chains, and examined the role played by chains length and grafting density [Ilnytskyi, et al., Processes, 2023, 11, 2913]. The analysis is extended here to the cases of bunch-like and grid-like grafting micropatterns. The bunch-like arrangement is the most efficient one displaying low- and high-density peaks for adsorbing effectiveness. The former peak is twice higher compared with uniform grafting, as a consequence of a match between LDLs dimensions and the micropattern pitch. Adsorption isotherms are fitted well by either Langmuir or logistic growth forms, indicating a higher growth rate compared with uniform grafting. The high-density peak exists only for this micropattern and extends the applicability of an adsorbent. At the highest LDL concentration, adsorption is hampered by self-assembly of LDLs into a packed cubic phase.
Comments18 pages, 10 figures
Journal refCondens. Matter Phys. 2026, 29 (3), 33801
