Hopping Behavior Mediates the Anomalous Confined Diffusion of Nanoparticles in Porous Hydrogels

doi:10.1021/acs.jpclett.2c02733

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Hopping Behavior Mediates the Anomalous Confined Diffusion of Nanoparticles in Porous Hydrogels
	Xue, Chundong 2,3; Huang, Yirong 3; Zheng X(郑旭)3; Hu, Guoqing 1
刊名	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2022-11-17
卷号	13 期号:45 页码:10612-10620
ISSN号	1948-7185
DOI	10.1021/acs.jpclett.2c02733
通讯作者	Zheng, Xu(zhengxu@lnm.imech.ac.cn) ; Hu, Guoqing(ghu@zju.edu.cn)
英文摘要	Diffusion is an essential means of mass transport in porous materials such as hydrogels, which are appealing in various biomedical applications. Herein, we investigate the diffusive motion of nanoparticles (NPs) in porous hydrogels to provide a microscopic view of confined diffusion. Based on the mean square displacement from particle tracking experiments, we elucidate the anomalous diffusion dynamics of the embedded NPs and reveal the heterogeneous pore structures in hydrogels. The results demonstrate that diffusive NPs can intermittently escape from single pores through void connective pathways and exhibit non-Gaussian displacement probability distribution. We simulate this scenario using the Monte Carlo method and clarify the existence of hopping events in porous diffusion. The resultant anomalous diffusion can be fully depicted by combining the hopping mechanism and the hydrodynamic effect. Our results highlight the hopping behavior through the connective pathways and establish a hybrid model to predict NP transport in porous environments.
分类号	一类
资助项目	National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province ; China Postdoctoral Science Foundation ; [11832017] ; [12172081] ; [12072350] ; [2021-MS-133] ; [2019M651106]
WOS关键词	CONTROLLED-RELEASE ; TRANSPORT ; DELIVERY
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
WOS记录号	WOS:000884818500001
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province ; China Postdoctoral Science Foundation
其他责任者	Zheng, Xu ; Hu, Guoqing
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90792]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Zhejiang Univ, Dept Engn Mech, Hangzhou 310027, Peoples R China 2.Dalian Univ Technol, Sch Optoelect Engn & Instrumentat Sci, Dalian 116024, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing Key Lab Engn Construction & Mechanobiol, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Xue, Chundong,Huang, Yirong,Zheng X,et al. Hopping Behavior Mediates the Anomalous Confined Diffusion of Nanoparticles in Porous Hydrogels[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2022,13(45):10612-10620.
APA	Xue, Chundong,Huang, Yirong,郑旭,&Hu, Guoqing.(2022).Hopping Behavior Mediates the Anomalous Confined Diffusion of Nanoparticles in Porous Hydrogels.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,13(45),10612-10620.
MLA	Xue, Chundong,et al."Hopping Behavior Mediates the Anomalous Confined Diffusion of Nanoparticles in Porous Hydrogels".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 13.45(2022):10612-10620.