Supercritical Synthesis of Poly (2-Dimethylaminoethyl Methacrylate)/Ferrite Nanocomposites and Online Electrochemical Monitoring of Protein Release
International Journal of Biomedical Materials Research
Volume 2, Issue 1, February 2014, Pages: 1-6
Received: Apr. 28, 2014; Accepted: Jun. 3, 2014; Published: Jun. 20, 2014
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Authors
Gunjan Bisht, Department of Natural Science, Kathmandu University, Dhulikhel, Nepal
M. G. H. Zaidi, Department of Chemistry, G. B. Pant University of Agriculture & Technology, Pantnagar, India
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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 insitu polymerization of 2-dimethylaminoethyl methacrylate in presence of ferrite nanoparticles and bisacrylamide at 90±1 oC, 1200 psi over 6 hr 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±1⁰C over additional 2 hr in SCC. The formation of PNCs was ascertained through Ultra violet-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.
Keywords
Supercritical Synthesis, Nanocomposites, Protein Release, Square Wave Voltammetry
To cite this article
Gunjan Bisht, M. G. H. Zaidi, Supercritical Synthesis of Poly (2-Dimethylaminoethyl Methacrylate)/Ferrite Nanocomposites and Online Electrochemical Monitoring of Protein Release, International Journal of Biomedical Materials Research. Vol. 2, No. 1, 2014, pp. 1-6. doi: 10.11648/j.ijbmr.20140201.11
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