A facile evanescent-field imaging approach for monitoring colloidal gel evolution near a surface. Issue 15 (12th April 2021)

• Record Type: Journal Article
• Authors: Liu, Wei; Wu, Jiahao; Zhu, Hui; He, Chuanxin; Ngai, To
• Is Part Of: Soft matter. Volume 17:Issue 15(2021)
• Page Start: 4006
• Page End: 4010
• Publication Date: 2021-04-12
• Subjects: Soft condensed matter -- Periodicals; 530.413
• DOI: 10.1039/d1sm00331c
• Languages: English
• ISSNs: 1744-683X

Abstract

Abstract : A facile evanescent-field imaging approach is developed to probe the aggregation behavior of near-wall colloids/clusters during colloidal gel evolution. Abstract : A facile evanescent-field imaging approach is developed to probe the aggregation behavior of near-wall colloids/clusters during colloidal gel evolution. Total internal reflection microscope (TIRM) images are directly utilized to access the structural relaxation time via density-fluctuation theory. The behaviors of cluster–cluster aggregation and physical aging of the colloidal gel networks are resolved in both time and space under fractal scaling criteria.