文献类型：期刊文献

英文题名：Engulfing Behavior of Nanoparticles into Thermoresponsive Microgels: A Mesoscopic Simulation Study

作者：Song, Xianyu[1,2,3];Zhou, Jianzhuang[1,2];Qiao, Chongzhi[1,2];Xu, Xiaofei[1,2];Zhao, Shuangliang[1,2,4];Liu, Honglai[1,5]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[3]Chongqing Three Gorges Univ, Chongqing Key Lab Water Environm Evolut & Pollut, Wanzhou 404020, Peoples R China;[4]Guangxi Univ, Guangxi Key Lab Petrochem Resource Proc & Proc In, Nanning 530004, Peoples R China;[5]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：125

期号：11

起止页码：2994

外文期刊名：JOURNAL OF PHYSICAL CHEMISTRY B

收录：;EI(收录号：20211510200484);WOS:【SCI-EXPANDED(收录号:WOS:000635441100022)】；

基金：This work is supported by the National Natural Science Foundation of China (Nos. 21978079, and 21878078).

语种：英文

外文关键词：Gels - Van der Waals forces - Superconducting materials

摘要：The engulfing of nanoparticles into microgels provides a versatile platform to design nano- and microstructured materials with various shape anisotropies and multifunctional properties. Manipulating the spontaneous engulfment process remains elusive. Herein, we report a mesoscopic simulation study on the engulfing behavior of nanoparticles into thermoresponsive microgels. The effects of the multiple parameters, including binding strength, temperature, and nanoparticle size, are examined systematically. Our simulation results disclose three engulfing states at different temperatures, namely full-engulfing, half-engulfing, and surface contact. The engulfing depth is determined by the complementary balance of interfacial elastocapillarity. Specifically, the van der Waals interaction of hybrid microgel-nanoparticle offers the capillary force while the internally networked structure of microgel reinforces the elasticity repulsion. Our study, validated by relevant experimental results, provides a mechanistic understanding of the interfacial elastocapillarity for nanoparticle-microgels.