Abstract
In this paper, the Lewis base character of 3-aminopropyltrimethoxysilane (3-APTMS), an imine derivative of siloxane, and an indole monomer were shown to enable the reduction of gold cations in acetone. The Lewis acid–base adduct of indole monomers and gold formed a polyindole–gold nanoparticle sol. Similarly, the Lewis acid–base adduct of 3-APTMS and gold enabled the formation of gold nanoparticles in the presence of acetone. The polyindole–gold nanoparticle sol and siloxane–gold nanoparticles underwent self-assembly into a polymeric nanofluid that was suitable for casting membranes. The use of these membranes as a potentiometric ion sensor for both cations and anions was considered; a common nonspecific ion exchange molecule, sodium tetraphenylborate, and the polymeric nanofluid were used to prepare an anion sensor and a cation sensor.
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The authors wish to acknowledge SERB, DST for the VAJRA Fellowship, and DRDO for LSRB-316.
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The supplementary material for this article can be found at https://doi.org/10.1557/mrc.2020.50.
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Pandey, P.C., Katyal, N., Pandey, G. et al. Synthesis of self-assembled siloxane–polyindole–gold nanoparticle polymeric nanofluid for biomedical membranes. MRS Communications 10, 482–486 (2020). https://doi.org/10.1557/mrc.2020.50
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DOI: https://doi.org/10.1557/mrc.2020.50