The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
Matrix Polyelectrolyte Microcapsules: New System for Macromolecule Encapsulation
Abstract
A new approach to fabricate polyelectrolyte microcapsules is based on exploiting porous inorganic microparticles of calcium carbonate. Porous CaCO3 microparticles (4.5-5.0 microns) were synthesized and characterized by scanning electron microscopy and the Brunauer-Emmett-Teller method of nitrogen adsorption/desorption to get a surface area of 8.8 m2/g and an average pore size of 35 nm. These particles were used as templates for polyelectrolyte layer-by-layer assembly of two oppositely charged polyelectrolytes, poly(styrene sulfonate) and poly(allylamine hydrochloride). Calcium carbonate core dissolution resulted in formation ofpolyelectrolyte microcapsules with an internal matrix consisting of a polyelectrolyte complex. Microcapsules with an internal matrix were analyzed by confocal Raman spectroscopy, scanning electron microscopy, force microscopy, and confocal laser-scanning fluorescence microscopy. The structure was found to be dependent on a number of polyelectrolyte adsorption treatments. Capsules have a very high loading capacity for macromolecules, which can be incorporated into the capsules by capturing them from the surrounding medium into the capsules. In this paper, we investigated the loading by dextran and bovine serum albumin as macromolecules. The amount of entrapped macromolecules was determined by two independent methods and found to be up to 15 pg per microcapsule.
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Cites
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Novel Hollow Polymer Shells by Colloid-Templated Assembly of Polyelectrolytes
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Layer-by-layer self assembly of polyelectrolytes on colloidal particles
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Self-citationThe formation and transformation mechanism of calcium carbonate in water
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Stepwise polyelectrolyte assembly on particle surfaces: a novel approach to colloid design
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Sustained Release Properties of Polyelectrolyte Multilayer Capsules
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Cited by
Electrochemical Biosensors - Sensor Principles and Architectures
Grieshaber, D., MacKenzie, R., Vörös, J., & Reimhult, E. (2008) · Sensors · doi:10.3390/s80314000 · Cited by 2,329
Ariga, K., Hill, J. P., & Ji, Q. (2007) · Physical Chemistry Chemical Physics · doi:10.1039/b700410a · Cited by 1,256
Form and Function in Multilayer Assembly: New Applications at the Nanoscale
Hammond, P. T. (2004) · Advanced Materials · doi:10.1002/adma.200400760 · Cited by 1,251
Release mechanisms for polyelectrolyte capsules
De Geest, B. G., Sanders, N. N., Sukhorukov, G. B., Demeester, J., & De Smedt, S. C. (2007) · Chem. Soc. Rev. · doi:10.1039/b600460c · Cited by 462
Self-citationLaser‐Induced Release of Encapsulated Materials inside Living Cells
Skirtach, A. G., Muñoz Javier, A., Kreft, O., Köhler, K., Piera Alberola, A., Möhwald, H., Parak, W. J., & Sukhorukov, G. B. (2006) · Angewandte Chemie · doi:10.1002/ange.200504599 · Cited by 455
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Metadata
- Authors
- Volodkin, D. V., Petrov, A. I., Prevot, M., & Sukhorukov, G. B.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-03-09
- Volume
- 20
- Issue
- 8
- Pages
- 3398-3406
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2048736491
- Cited by
- 656
- References
- 23
- FWCI
- 14.40
- Type
- journal article
- Language
- en
- Open access
- closed
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