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ISSN 1998-9539

Colloid Properties of Paramagnetic Nanoparticles Based on Novel Thiacalix[4]arenes and Gd(III) Ions

Alexey S. Stepanov,@ Svetlana E. Solovieva, Aidar T. Gubaidullin, and Asiya R. Mustafina
A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, 420088 Kazan, Russia
@Corresponding author E-mail:
DOI: 10.6060/mhc170519s
Macroheterocycles2017 10(2) 169-173

The present work introduces colloid behaviour of core-shell nanoparticles, where hard paramagnetic cores are coated by hydrophilic polyelectrolyte-based shells. Paramagnetic cores are built from water insoluble Gd(III) complexes with alkyl-malonate derivatives of thiacalix[4]arenes adopting 1,3-alternate conformation. Polystyrenesulfonate (PSS) and polyethyleneimine (PEI) are used to deposit one (PSS) or two (PSS-PEI) polyelectrolyte layers onto the cores. Small angle light scattering was used to reveal both size and aggregation behaviour of the core-shell colloids in aqueous solutions.


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