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Dispersed Uniform Nanoparticles from a Macroscopic Organosilica Powder
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK). University of Gothenburg, Sweden.ORCID iD: 0000-0002-9611-2263
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).ORCID iD: 0000-0002-7284-2974
Number of Authors: 4
2018 (English)In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 34, no 6, p. 2274-2281Article in journal (Refereed) Published
Abstract [en]

A colloidal dispersion of uniform organosilica nanoparticles could be produced via the disassembly of the non-surfactant-templated organosilica powder nanostructured folate material (NFM-1). This unusual reaction pathway was available because the folate and silica-containing moieties in NFM-1 are held together by noncovalent interactions. No precipitation was observed from the colloidal dispersion after a week, though particle growth occurred at a solvent-dependent rate that could be described by the Lifshitz-Slyozov-Wagner equation. An organosilica film that was prepared from the colloidal dispersion adsorbed folate-binding protein from solution but adsorbed ions from a phosphate -buffered saline solution to a larger degree. To our knowledge, this is the first instance of a colloidal dispersion of organosilica nanoparticles being derived from a macroscopic material rather than from molecular precursors.

Place, publisher, year, edition, pages
2018. Vol. 34, no 6, p. 2274-2281
National Category
Chemical Sciences Materials Engineering
Identifiers
URN: urn:nbn:se:su:diva-154592DOI: 10.1021/acs.langmuir.7b03705ISI: 000425474800006PubMedID: 29400064OAI: oai:DiVA.org:su-154592DiVA, id: diva2:1195405
Available from: 2018-04-05 Created: 2018-04-05 Last updated: 2018-04-05Bibliographically approved

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Church, Tamara L.Bernin, DianaHedin, Niklas
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