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Supercritical synthesis of poly (2-dimethylaminoethyl methacrylate)/ferrite nanocomposites for real-time monitoring of protein release

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Abstract

A supercritical carbon dioxide (SCC)-assisted process was developed to synthesize protein-supported poly (2-dimethylaminoethyl methacrylate)/ferrite nanocomposites (PNCs). The process involve 2,2-azobisisobutyronitrile-initiated in situ polymerization of 2-dimethylaminoethyl methacrylate in presence of ferrite nanoparticles and bisacrylamide at 90 ± 1 °C, 1200 psi over 6 h in SCC. This was followed by subsequent loading of bovine serum albumin (BSA) as a model protein over PNCs in phosphate buffer (PBS, pH 7.4) at 1200 psi, 35 ± 1 °C over additional 2 h in SCC. The formation of PNCs was ascertained through ultraviolet-visible, Fourier transform-infrared, X-ray diffraction spectra, transmission electron, atomic force microscopy and magnetometry. The developed process extends large scale production of nanomagnetic PNCs suitable as carrier for protein release applications with optimal release properties. The release of protein from PNCs under in vitro in PBS down to nanomolar range with high temporal resolution, speed and reproducibility was quantified through square wave voltammetry.

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Acknowledgments

The authors acknowledge the Department of Chemistry, G. B. Pantnagar University of Agriculture and Technology, Pantnagar, India for providing all the support during the study period.

Conflict of interest

Authors Gunjan Bisht and M. G. H. Zaidi declare that they have no conflict of interest.

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Authors and Affiliations

  1. Department of Natural Science, Kathmandu University, Dhulikhel, Nepal

    Gunjan Bisht

  2. Department of Chemistry, G.B. Pant University of Agriculture and Technology, Pantnagar, India

    M. G. H. Zaidi

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  1. Gunjan Bisht
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  2. M. G. H. Zaidi
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Correspondence to Gunjan Bisht.

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Bisht, G., Zaidi, M.G.H. Supercritical synthesis of poly (2-dimethylaminoethyl methacrylate)/ferrite nanocomposites for real-time monitoring of protein release. Drug Deliv. and Transl. Res. 5, 268–274 (2015). https://doi.org/10.1007/s13346-015-0225-3

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  • DOI: https://doi.org/10.1007/s13346-015-0225-3

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