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A Variable Pressure Method for Characterizing Nanoparticle Surface Charge Using Pore Sensors

Overview of attention for article published in Analytical Chemistry, March 2012
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (90th percentile)
  • High Attention Score compared to outputs of the same age and source (96th percentile)

Mentioned by

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1 X user
patent
4 patents
wikipedia
1 Wikipedia page

Citations

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90 Dimensions

Readers on

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88 Mendeley
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Title
A Variable Pressure Method for Characterizing Nanoparticle Surface Charge Using Pore Sensors
Published in
Analytical Chemistry, March 2012
DOI 10.1021/ac2030915
Pubmed ID
Authors

Robert Vogel, Will Anderson, James Eldridge, Ben Glossop, Geoff Willmott

Abstract

A novel method using resistive pulse sensors for electrokinetic surface charge measurements of nanoparticles is presented. This method involves recording the particle blockade rate while the pressure applied across a pore sensor is varied. This applied pressure acts in a direction which opposes transport due to the combination of electro-osmosis, electrophoresis, and inherent pressure. The blockade rate reaches a minimum when the velocity of nanoparticles in the vicinity of the pore approaches zero, and the forces on typical nanoparticles are in equilibrium. The pressure applied at this minimum rate can be used to calculate the zeta potential of the nanoparticles. The efficacy of this variable pressure method was demonstrated for a range of carboxylated 200 nm polystyrene nanoparticles with different surface charge densities. Results were of the same order as phase analysis light scattering (PALS) measurements. Unlike PALS results, the sequence of increasing zeta potential for different particle types agreed with conductometric titration.

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X Demographics

The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 88 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Germany 1 1%
Australia 1 1%
New Zealand 1 1%
Denmark 1 1%
China 1 1%
United States 1 1%
Unknown 82 93%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 23 26%
Researcher 18 20%
Student > Master 11 13%
Professor > Associate Professor 7 8%
Student > Doctoral Student 5 6%
Other 14 16%
Unknown 10 11%
Readers by discipline Count As %
Chemistry 19 22%
Physics and Astronomy 15 17%
Agricultural and Biological Sciences 14 16%
Engineering 13 15%
Chemical Engineering 4 5%
Other 14 16%
Unknown 9 10%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 13. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 23 August 2023.
All research outputs
#2,513,319
of 24,387,992 outputs
Outputs from Analytical Chemistry
#1,064
of 27,467 outputs
Outputs of similar age
#14,709
of 160,179 outputs
Outputs of similar age from Analytical Chemistry
#9
of 232 outputs
Altmetric has tracked 24,387,992 research outputs across all sources so far. Compared to these this one has done well and is in the 89th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 27,467 research outputs from this source. They receive a mean Attention Score of 4.9. This one has done particularly well, scoring higher than 95% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 160,179 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 90% of its contemporaries.
We're also able to compare this research output to 232 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 96% of its contemporaries.