Colloidal crystallization in the quasi-two-dimensional induced by electrolyte gradients
- Publication type:
- Journal article
- Metadata:
-
- Abstract
- <jats:p>We investigated driven crystal formation events in thin layers of sedimented colloidal particles under low salt conditions. Using optical microscopy, we observe particles in a thermodynamically stable colloidal fluid to move radially converging towards cation exchange resin fragments acting as seed particles. When the local particle concentration has become sufficiently large, subsequently crystallization occurs. Brownian dynamics simulations of a 2D system of purely repulsive point-like particles exposed to an attractive potential, yield strikingly similar scenarios, and kinetics of accumulation and micro-structure formation. This offers the possibility of flexibly designing and manufacturing thin colloidal crystals at controlled positions and thus to obtain specific micro-structures not accessible by conventional approaches. We further demonstrate that particle motion is correlated with the existence of a gradient in electrolyte concentration due to the release of electrolyte by the seeds.</jats:p>
- Autoren
- A Reinmüller
- EC Oğuz
- R Messina
- H Löwen
- HJ Schöpe
- T Palberg
- DOI
- 10.1063/1.4705393
- eISSN
- 1089-7690
- ISSN
- 0021-9606
- Ausgabe der Veröffentlichung
- 16
- Zeitschrift
- The Journal of Chemical Physics
- Sprache
- en
- Online publication date
- 2012
- Datum der Veröffentlichung
- 2012
- Status
- Published
- Herausgeber
- AIP Publishing
- Herausgeber URL
- http://dx.doi.org/10.1063/1.4705393
- Datum der Datenerfassung
- 2023
- Titel
- Colloidal crystallization in the quasi-two-dimensional induced by electrolyte gradients
- Ausgabe der Zeitschrift
- 136
Data source: Crossref
- Other metadata sources:
-
- Abstract
- We investigated driven crystal formation events in thin layers of sedimented colloidal particles under low salt conditions. Using optical microscopy, we observe particles in a thermodynamically stable colloidal fluid to move radially converging towards cation exchange resin fragments acting as seed particles. When the local particle concentration has become sufficiently large, subsequently crystallization occurs. Brownian dynamics simulations of a 2D system of purely repulsive point-like particles exposed to an attractive potential, yield strikingly similar scenarios, and kinetics of accumulation and micro-structure formation. This offers the possibility of flexibly designing and manufacturing thin colloidal crystals at controlled positions and thus to obtain specific micro-structures not accessible by conventional approaches. We further demonstrate that particle motion is correlated with the existence of a gradient in electrolyte concentration due to the release of electrolyte by the seeds.
- Addresses
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128 Mainz, Germany.
- Autoren
- A Reinmüller
- EC Oğuz
- R Messina
- H Löwen
- HJ Schöpe
- T Palberg
- DOI
- 10.1063/1.4705393
- eISSN
- 1089-7690
- Externe Identifier
- PubMed Identifier: 22559494
- Funding acknowledgements
- Deutsche Forschungsgemeinschaft: Pa459/15-17
- Deutsche Forschungsgemeinschaft: SFB-TR6
- Deutsche Forschungsgemeinschaft: Scho1054/3
- Open access
- false
- ISSN
- 0021-9606
- Ausgabe der Veröffentlichung
- 16
- Zeitschrift
- The Journal of chemical physics
- Sprache
- eng
- Medium
- Paginierung
- 164505
- Datum der Veröffentlichung
- 2012
- Status
- Published
- Datum der Datenerfassung
- 2012
- Titel
- Colloidal crystallization in the quasi-two-dimensional induced by electrolyte gradients.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 136
Data source: Europe PubMed Central
- Abstract
- We investigated driven crystal formation events in thin layers of sedimented colloidal particles under low salt conditions. Using optical microscopy, we observe particles in a thermodynamically stable colloidal fluid to move radially converging towards cation exchange resin fragments acting as seed particles. When the local particle concentration has become sufficiently large, subsequently crystallization occurs. Brownian dynamics simulations of a 2D system of purely repulsive point-like particles exposed to an attractive potential, yield strikingly similar scenarios, and kinetics of accumulation and micro-structure formation. This offers the possibility of flexibly designing and manufacturing thin colloidal crystals at controlled positions and thus to obtain specific micro-structures not accessible by conventional approaches. We further demonstrate that particle motion is correlated with the existence of a gradient in electrolyte concentration due to the release of electrolyte by the seeds.
- Autoren
- A Reinmüller
- EC Oğuz
- R Messina
- H Löwen
- HJ Schöpe
- T Palberg
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/22559494
- DOI
- 10.1063/1.4705393
- eISSN
- 1089-7690
- Ausgabe der Veröffentlichung
- 16
- Zeitschrift
- J Chem Phys
- Sprache
- eng
- Country
- United States
- Paginierung
- 164505
- Datum der Veröffentlichung
- 2012
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2012
- Titel
- Colloidal crystallization in the quasi-two-dimensional induced by electrolyte gradients.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 136
Data source: PubMed
- Autoren
- A Reinmüller
- EC O\uguz
- R Messina
- H Löwen
- HJ Schöpe
- T Palberg
- DOI
- 10.1063/1.4705393
- ISSN
- 0021-9606
- Zeitschrift
- The Journal of Chemical Physics
- Artikelnummer
- 16
- Paginierung
- 164505 - 164505
- Datum der Veröffentlichung
- 2012
- Datum der Datenerfassung
- 2020
- Titel
- Colloidal crystallization in the quasi-two-dimensional induced by electrolyte gradients
- Sub types
- article
- Ausgabe der Zeitschrift
- 136
Data source: Manual
- Beziehungen:
- Property of