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Synthesis of self-assembled siloxane–polyindole–gold nanoparticle polymeric nanofluid for biomedical membranes

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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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Acknowledgment

The authors wish to acknowledge SERB, DST for the VAJRA Fellowship, and DRDO for LSRB-316.

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Authors and Affiliations

  1. Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, 221005, India

    Prem C. Pandey & Naman Katyal

  2. Department of Pediatrics, King George Medical University, Lucknow, 226003, India

    Govind Pandey

  3. Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Raleigh, NC, 27599-7115, USA

    Roger J. Narayan

Authors
  1. Prem C. Pandey
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  2. Naman Katyal
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  3. Govind Pandey
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  4. Roger J. Narayan
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Corresponding author

Correspondence to Roger J. Narayan.

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Supplementary material

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

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