Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Robert L. Leheny"'
Autor:
Gavin J. Donley, Suresh Narayanan, Matthew A. Wade, Jun Dong Park, Robert L. Leheny, James L. Harden, Simon A. Rogers
Publikováno v:
Proceedings of the National Academy of Sciences. 120
We probe the microstructural yielding dynamics of a concentrated colloidal system by performing creep/recovery tests with simultaneous collection of coherent scattering data via X-ray Photon Correlation Spectroscopy (XPCS). This combination of rheolo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7b344e7c265886658a69807edf66205
https://doi.org/10.1073/pnas.2215517120
https://doi.org/10.1073/pnas.2215517120
Autor:
Ramona Mhanna, Michael Giroux, Kenneth J. T. Livi, Chao Wang, Andrei Fluerasu, Lutz Wiegart, Yugang Zhang, Mark Sutton, Robert L. Leheny
Publikováno v:
The Journal of Physical Chemistry C. 126:3614-3622
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3248c12e351c80053a14d85cc6b8bc38
https://doi.org/10.1021/acs.jpcc.2c00090
https://doi.org/10.1021/acs.jpcc.2c00090
Autor:
Jake Song, Qingteng Zhang, Felipe de Quesada, Mehedi H. Rizvi, Joseph B. Tracy, Jan Ilavsky, Suresh Narayanan, Emanuela Del Gado, Robert L. Leheny, Niels Holten-Andersen, Gareth H. McKinley
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America. 119(30)
Arrested soft materials such as gels and glasses exhibit a slow stress relaxation with a broad distribution of relaxation times in response to linear mechanical perturbations. Although this macroscopic stress relaxation is an essential feature in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ec76fe0d9b7e47e62b5c746cf8fe0bf
https://pubmed.ncbi.nlm.nih.gov/35858447
https://pubmed.ncbi.nlm.nih.gov/35858447
Publikováno v:
Soft Matter. 17:2973-2984
During processing, proteins are easily self-assembled into different aggregates, such as nanoparticles and fibrils. Protein aggregates exhibit a strong interfacial activity due to their morphologies and functional groups on the surface. Their interfa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b870ea0091fda426d98d96b9af434c7
https://doi.org/10.1039/d0sm01761b
https://doi.org/10.1039/d0sm01761b
Publikováno v:
Soft Matter. 17:8195-8210
We present an experimental study combining particle tracking, active microrheology, and differential dynamic microscopy (DDM) to investigate the dynamics and rheology of an oil-water interface during biofilm formation by the bacteria Pseudomonas Aeru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e118e15cbb6866ac1f1cc5e6cbb68554
https://doi.org/10.1039/d1sm00795e
https://doi.org/10.1039/d1sm00795e
Publikováno v:
The Journal of Chemical Physics. 158:024906
We report a combined rheology, x-ray photon correlation spectroscopy, and modeling study of gel formation and aging in suspensions of nanocolloidal spheres with volume fractions of 0.20 and 0.43 and with a short-range attraction whose strength is tun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9aae2cb483ed8aad92d818a61757af73
https://doi.org/10.1063/5.0126432
https://doi.org/10.1063/5.0126432
Publikováno v:
Nanoscale. 11:7875-7884
Small angle X-ray scattering with in situ shear was employed to study the assembly and ordering of dispersions of gold nanorods within wormlike micelle solutions formed by the surfactant cetylpyridinium chloride (CPyCl) and counter-ion sodium salicyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b895d75fdeedd952852d77b06704d0ea
https://doi.org/10.1039/c8nr10440a
https://doi.org/10.1039/c8nr10440a
Autor:
Robert L. Leheny, Simon A. Rogers, J. Buitenhuis, O. Korculanin, Yi Chen, Minne Paul Lettinga, Suresh Narayanan
Publikováno v:
Physics of fluids 33(6), 063102-(2021). doi:10.1063/5.0050942
We report experiments employing x-ray photon correlation spectroscopy (XPCS) to characterize the velocity profiles of complex fluids in Couette flow. The approach involves modeling the XPCS correlation functions obtained with the incident x-ray beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41e2ef4c63ac88ae8588d27b74b70c3a
https://juser.fz-juelich.de/record/893818
https://juser.fz-juelich.de/record/893818
Publikováno v:
Physical Review E. 102
We report a study combining x-ray photon correlation spectroscopy (XPCS) with in situ rheology to investigate the microscopic dynamics and mechanical properties of aqueous suspensions of the synthetic hectorite clay Laponite, which is composed of cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3eee133b326fd92e7317eafd4bd9406
https://doi.org/10.1103/physreve.102.042619
https://doi.org/10.1103/physreve.102.042619
Publikováno v:
Physical Review Materials. 4
We report x-ray photon correlation spectroscopy (XPCS) experiments with in situ rheometry performed on a soft glass composed of a concentrated suspension of charged silica nanoparticles subjected to step strains that induce yielding and flow. The XPC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05a1050cf9589012a6a09b922c58ed6a
https://doi.org/10.1103/physrevmaterials.4.035602
https://doi.org/10.1103/physrevmaterials.4.035602