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Beyond Millikan: the dynamics of charging events on individual colloidal particles

Filip Beunis (UGent) , Filip Strubbe (UGent) , Kristiaan Neyts (UGent) and Dmitri Petrov
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Project
Center for nano- and biophotonics (NB-Photonics)
Abstract
By measuring the stable charge on oil drops in air, Millikan demonstrated the discrete nature of electric charge. We extend his approach to the charge on solid-liquid interfaces, and focus on the dynamics of the discrete fluctuations. Our measurements are accurate and fast enough to observe changes of one elementary charge. Experiments over thousands of seconds yield information about the fast dynamics of electrochemical reactions, relevant for physicochemical and biological systems. As an example, we study (dis)charging processes on colloidal particles in a nonpolar liquid.
Keywords
NONPOLAR-SOLVENTS, MODEL SYSTEM

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Citation

Please use this url to cite or link to this publication:

Chicago
Beunis, Filip, Filip Strubbe, Kristiaan Neyts, and Dmitri Petrov. 2012. “Beyond Millikan: The Dynamics of Charging Events on Individual Colloidal Particles.” Physical Review Letters 108 (1).
APA
Beunis, F., Strubbe, F., Neyts, K., & Petrov, D. (2012). Beyond Millikan: the dynamics of charging events on individual colloidal particles. PHYSICAL REVIEW LETTERS, 108(1).
Vancouver
1.
Beunis F, Strubbe F, Neyts K, Petrov D. Beyond Millikan: the dynamics of charging events on individual colloidal particles. PHYSICAL REVIEW LETTERS. 2012;108(1).
MLA
Beunis, Filip, Filip Strubbe, Kristiaan Neyts, et al. “Beyond Millikan: The Dynamics of Charging Events on Individual Colloidal Particles.” PHYSICAL REVIEW LETTERS 108.1 (2012): n. pag. Print.
@article{2099343,
  abstract     = {By measuring the stable charge on oil drops in air, Millikan demonstrated the discrete nature of electric charge. We extend his approach to the charge on solid-liquid interfaces, and focus on the dynamics of the discrete fluctuations. Our measurements are accurate and fast enough to observe changes of one elementary charge. Experiments over thousands of seconds yield information about the fast dynamics of electrochemical reactions, relevant for physicochemical and biological systems. As an example, we study (dis)charging processes on colloidal particles in a nonpolar liquid.},
  articleno    = {016101},
  author       = {Beunis, Filip and Strubbe, Filip and Neyts, Kristiaan and Petrov, Dmitri},
  issn         = {0031-9007},
  journal      = {PHYSICAL REVIEW LETTERS},
  keyword      = {NONPOLAR-SOLVENTS,MODEL SYSTEM},
  language     = {eng},
  number       = {1},
  pages        = {5},
  title        = {Beyond Millikan: the dynamics of charging events on individual colloidal particles},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.108.016101},
  volume       = {108},
  year         = {2012},
}

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