TY - JOUR
T1 - Dispersed uniform nanoparticles from a macroscopic organosilica powder
AU - Church, Tamara L.
AU - Bernin, Diana
AU - Garcia-Bennett, Alfonso E.
AU - Hedin, Niklas
N1 - Copyright the Publisher 2018. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
PY - 2018/2/5
Y1 - 2018/2/5
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85041950341&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/arc/CE140100003
UR - http://purl.org/au-research/grants/arc/FT150100342
U2 - 10.1021/acs.langmuir.7b03705
DO - 10.1021/acs.langmuir.7b03705
M3 - Article
C2 - 29400064
AN - SCOPUS:85041950341
VL - 34
SP - 2274
EP - 2281
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 6
ER -