Structure and Transport Anomalies in Soft Colloids

Samanvaya Srivastava; Lynden A. Archer; Suresh Narayanan

doi:10.1103/PhysRevLett.110.148302

Structure and Transport Anomalies in Soft Colloids

Samanvaya Srivastava, Lynden A. Archer, Suresh Narayanan

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Anomalous trends in nanoparticle correlation and motion are reported in soft nanoparticle suspensions using static and dynamic x-ray scattering measurements. Contrary to normal expectations, we find that particle-particle correlations decrease and particle dynamics become faster as volume fraction rises above a critical particle loading associated with overlap. Our observations bear many similarities to the cascade of structural and transport anomalies reported for complex, network forming molecular fluids such as water, and are argued to share similar physical origins. © 2013 American Physical Society.

Original language	English (US)
Journal	Physical Review Letters
Volume	110
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.110.148302
State	Published - Apr 3 2013
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-C1018-02
Acknowledgements: This work was supported by the National Science Foundation, Award No. DMR-1006323 and by Award No. KUS-C1018-02, made by King Abdullah University of Science and Technology (KAUST). Use of the Advanced Photon Source, operated by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357. We acknowledge Professor A. D. Stroock for helpful discussions.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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10.1103/PhysRevLett.110.148302

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title = "Structure and Transport Anomalies in Soft Colloids",

abstract = "Anomalous trends in nanoparticle correlation and motion are reported in soft nanoparticle suspensions using static and dynamic x-ray scattering measurements. Contrary to normal expectations, we find that particle-particle correlations decrease and particle dynamics become faster as volume fraction rises above a critical particle loading associated with overlap. Our observations bear many similarities to the cascade of structural and transport anomalies reported for complex, network forming molecular fluids such as water, and are argued to share similar physical origins. {\textcopyright} 2013 American Physical Society.",

author = "Samanvaya Srivastava and Archer, {Lynden A.} and Suresh Narayanan",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-C1018-02 Acknowledgements: This work was supported by the National Science Foundation, Award No. DMR-1006323 and by Award No. KUS-C1018-02, made by King Abdullah University of Science and Technology (KAUST). Use of the Advanced Photon Source, operated by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357. We acknowledge Professor A. D. Stroock for helpful discussions. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

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AB - Anomalous trends in nanoparticle correlation and motion are reported in soft nanoparticle suspensions using static and dynamic x-ray scattering measurements. Contrary to normal expectations, we find that particle-particle correlations decrease and particle dynamics become faster as volume fraction rises above a critical particle loading associated with overlap. Our observations bear many similarities to the cascade of structural and transport anomalies reported for complex, network forming molecular fluids such as water, and are argued to share similar physical origins. © 2013 American Physical Society.

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Structure and Transport Anomalies in Soft Colloids

Abstract

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