Probe microrheology without particle tracking by differential dynamic microscopy
Sign Up to like & getrecommendations! Published in 2017 at "Rheologica Acta"
DOI: 10.1007/s00397-017-1047-7
Abstract: We present a new method for performing passive probe microrheology. Using a simple theoretical framework, we show how probes’ mean-squared displacements can be extracted by analyzing intensity fluctuations in optical microscopy videos via differential dynamic… read more here.
Keywords: dynamic microscopy; microscopy; differential dynamic; microrheology ... See more keywords
Microstructure, microrheology, and dynamics of laponite® and laponite®-poly(ethylene oxide) glasses and dispersions
Sign Up to like & getrecommendations! Published in 2020 at "Rheologica Acta"
DOI: 10.1007/s00397-020-01210-y
Abstract: We utilize dynamic light scattering (DLS)-based passive microrheology to probe the dynamics and structural evolution of laponite® and laponite®-polymer glasses and dispersions at the microscale. The results reveal an increase in the dynamic heterogeneity of… read more here.
Keywords: rheology; laponite laponite; microrheology; microstructure microrheology ... See more keywords
High-throughput microscopy to determine morphology, microrheology, and phase boundaries applied to phase separating coacervates.
Sign Up to like & getrecommendations! Published in 2022 at "Soft matter"
DOI: 10.1039/d1sm01763b
Abstract: Evolution of composition, rheology, and morphology during phase separation in complex fluids is highly coupled to rheological and mass transport processes within the emerging phases, and understanding this coupling is critical for materials design of… read more here.
Keywords: rheology; phase separation; phase; microscopy ... See more keywords
Correlating microscopic viscoelasticity and structure of an aging colloidal gel using active microrheology and cryogenic scanning electron microscopy.
Sign Up to like & getrecommendations! Published in 2022 at "Soft matter"
DOI: 10.1039/d2sm01457b
Abstract: Optical tweezers (OTs) can detect pico-Newton range forces operating on a colloidal particle trapped in a medium and have been successfully utilized to investigate complex systems with internal structures. LAPONITE® clay particles in an aqueous… read more here.
Keywords: microrheology; electron microscopy; microscopy; active microrheology ... See more keywords
Active microrheology of colloidal suspensions of hard cuboids.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.034612
Abstract: By performing dynamic Monte Carlo simulations, we investigate the microrheology of isotropic suspensions of hard-core colloidal cuboids. In particular, we infer the local viscoelastic behavior of these fluids by studying the dynamics of a probe… read more here.
Keywords: microrheology; colloidal suspensions; suspensions hard; microrheology colloidal ... See more keywords
Design, operation, and validation of a microrheology instrument for high-pressure linear viscoelasticity measurements
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Rheology"
DOI: 10.1122/1.5126682
Abstract: We report a passive microrheology experiment to measure the linear viscoelasticity of complex fluids at pressures of up to 200 MPa. The apparatus incorporates a sealed steel alloy sample chamber with dual sapphire windows into a… read more here.
Keywords: microrheology; linear viscoelasticity; high pressure; modulus ... See more keywords
Colloidal Probes of PNIPAM-Grafted SiO2 in Studying the Microrheology of Thermally Sensitive Microgel Suspensions
Sign Up to like & getrecommendations! Published in 2020 at "Advances in Polymer Technology"
DOI: 10.1155/2020/3971953
Abstract: The complex rheology and the phase behavior of thermally sensitive poly(N-isopropylacrylamide) (PNIPAM) microgels have been investigated in both the swollen and collapsed states by using microrheology. To avoid the interactions between the tracer probes and… read more here.
Keywords: thermally sensitive; microgel; probes pnipam; pnipam ... See more keywords