Digital colloids

Reconfigurable clusters as high information density elements

Carolyn L. Phillips, Eric Jankowski, Bhaskar Jyoti Krishnatreya, Kazem V. Edmond, Stefano Sacanna, David G. Grier, David J. Pine, Sharon C. Glotzer

Research output: Contribution to journalArticle

Abstract

Through the design and manipulation of discrete, nanoscale systems capable of encoding massive amounts of information, the basic components of computation are open to reinvention. These components will enable tagging, memory storage, and sensing in unusual environments-elementary functions crucial for soft robotics and "wet computing". Here we show how reconfigurable clusters made of N colloidal particles bound flexibly to a central colloidal sphere have the capacity to store an amount of information that increases as O(Nln(N)). Using Brownian dynamics simulations, we predict dynamical regimes that allow for information to be written, saved, and erased. We experimentally assemble an N = 4 reconfigurable cluster from chemically synthesized colloidal building blocks, and monitor its equilibrium dynamics. We observe state switching in agreement with simulations. This cluster can store one bit of information, and represents the simplest digital colloid. This journal is

Original languageEnglish (US)
Pages (from-to)7468-7479
Number of pages12
JournalSoft Matter
Volume10
Issue number38
DOIs
StatePublished - Oct 14 2014

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Colloids
colloids
Robotics
Data storage equipment
Computer simulation
robotics
marking
manipulators
coding
simulation

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Phillips, C. L., Jankowski, E., Krishnatreya, B. J., Edmond, K. V., Sacanna, S., Grier, D. G., ... Glotzer, S. C. (2014). Digital colloids: Reconfigurable clusters as high information density elements. Soft Matter, 10(38), 7468-7479. https://doi.org/10.1039/c4sm00796d

Digital colloids : Reconfigurable clusters as high information density elements. / Phillips, Carolyn L.; Jankowski, Eric; Krishnatreya, Bhaskar Jyoti; Edmond, Kazem V.; Sacanna, Stefano; Grier, David G.; Pine, David J.; Glotzer, Sharon C.

In: Soft Matter, Vol. 10, No. 38, 14.10.2014, p. 7468-7479.

Research output: Contribution to journalArticle

Phillips, CL, Jankowski, E, Krishnatreya, BJ, Edmond, KV, Sacanna, S, Grier, DG, Pine, DJ & Glotzer, SC 2014, 'Digital colloids: Reconfigurable clusters as high information density elements', Soft Matter, vol. 10, no. 38, pp. 7468-7479. https://doi.org/10.1039/c4sm00796d
Phillips CL, Jankowski E, Krishnatreya BJ, Edmond KV, Sacanna S, Grier DG et al. Digital colloids: Reconfigurable clusters as high information density elements. Soft Matter. 2014 Oct 14;10(38):7468-7479. https://doi.org/10.1039/c4sm00796d
Phillips, Carolyn L. ; Jankowski, Eric ; Krishnatreya, Bhaskar Jyoti ; Edmond, Kazem V. ; Sacanna, Stefano ; Grier, David G. ; Pine, David J. ; Glotzer, Sharon C. / Digital colloids : Reconfigurable clusters as high information density elements. In: Soft Matter. 2014 ; Vol. 10, No. 38. pp. 7468-7479.
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