Measurement of Navier Slip on Individual Nanoparticles in Liquid
Name
2010.06758.pdf
Description
Submitted version
Size
2.34 MB
Format
Adobe PDF
Checksum (MD5)
a5a05873c777a333c5d7db62a2e64e04
Author(s)
Collis, Jesse F
Olcum, Selim
Chakraborty, Debadi
Manalis, Scott R
Sader, John E
Date Issued
2021
Journal
Nano Letters
Publisher
American Chemical Society (ACS)
Version
Original manuscript
Abstract
The Navier slip condition describes the motion of a liquid relative to a neighboring solid surface, with its characteristic Navier slip length being a constitutive property of the solid-liquid interface. Measurement of this slip length is complicated by its small magnitude, expected to be in the nanometer range based on molecular simulations. Here, we report an experimental technique that interrogates the Navier slip length on individual nanoparticles immersed in liquid with subnanometer precision. Proof-of-principle experiments on individual, citrate-stabilized, gold nanoparticles in water give a constant slip length of 2.7 ± 0.6 nm (95% C.I.), independent of particle size. Achieving this feature of size independence is central to any measurement of this constitutive property, which is facilitated through the use of individual particles of varying radii. This demonstration motivates studies that can now validate the wealth of existing molecular simulation data on slip.
MIT Department
Koch Institute for Integrative Cancer Research at MIT
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1021/acs.nanolett.1c00603
