Related Experiment Video
Updated: Aug 18, 2025

Probing C84-embedded Si Substrate Using Scanning Probe Microscopy and Molecular Dynamics
Published on: September 28, 2016
Surface Curvature Dominated Guest-Induced Nonequilibrium Deformations of Single Covalent Organic Framework-300
Guihua Zhang1, Xinyi Zou1, Qianxi Wang1
1National Collaborative Innovation Center for Nuclear Waste and Environmental Safety, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, P. R. China.
Abstract:
Understanding the guest-induced dynamic deformation process of covalent organic frameworks (COFs) is vitally important to further increase their stimulus-response performances. Here we report on the dark-field microscopic (DFM) imaging approach to in situ monitor the guest-induced deformation evolution of individual COF-300 crystals in real time. We observe not only transient and nonequilibrium intermediate deformation states but also local surface curvature-driven diverse adsorption behaviours of single COF-300 particles for dichloromethane (DCM), undergoing one, two, and multiple expansion-contraction deformations as well as contraction-to-expansion transition. The surface curvature-dominated deformations are ascribed to the significant differences in the adsorption capacity for DCM at the curved tip and flat side regions, in which DCM can be adsorbed preferentially by curved tip regions of COF-300.
Related Concept Videos
Bending of Curved Members - Strain Analysis
The important part of bending analysis for such a member...
Conformations of Cyclohexane
The chair form is the most stable and derives its name from its resemblance to the “easy chair.” In the chair conformation, two carbon atoms are arranged out-of-plane — one above and one below, minimizing the torsional strain. In the chair form, the bond angle is very close to the ideal...
Mechanisms of Membrane-bending
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...
Conformations of Cycloalkanes
Deformations in a Symmetric Member in Bending
When the member is segmented into tiny cubic elements, it is observed that the primary stress...
Temperature Dependent Deformation

