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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Preparation and characterization of magnetic nanoparticles embedded in hydrogels for protein purification and metal extraction
Journal of Polymer Research, Volume 18, No. 6, Year 2011
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Description
The present work involves the development of hydrogel magnetic nanocomposites for protein purification and heavy metal extraction applications. The magnetic nanoparticles (MNPs) were prepared in situ in poly(acrylamide)-gum acacia (PAM-GA) hydrogels. The formation of magnetic nanoparticles in the hydrogel networks was confirmed by Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). Scanning electron (SEM) microscopy studies revealed the formation of MNPs throughout the hydrogel networks. The average size of MNPs formed in the hydrogel networks was 3-5 nm as determined by transmission electron microscopy (TEM). The thermal properties of the hydrogel magnetic nanocomposites were evaluated by dynamic scanning calorimetry (DSC) and thermogravimetric (TG) analysis. The magnetic properties of the developed hydrogel magnetic nanocomposites were determined by a vibrating sample magnetometer (VSM). The swelling properties of the hydrogel and the hydrogel magnetic nanocomposites were studied in detail. The hydrogel magnetic nanocomposites are utilized for the removal of toxic metal ions such as Co(II), Ni(II), and Cu(II) and for protein purification. The results confirm that the hydrogel magnetic nanocomposites exhibit superior extraction properties to hydrogels. [Figure not available: see fulltext.] © 2011 Springer Science+Business Media B.V.
Authors & Co-Authors
Yallapu, Murali Mohan
India, Anantapur
Sri Krishnadevaraya University
United States, Sioux Falls
Sanford Health
Varaprasad, Kokkarachedu
India, Anantapur
Sri Krishnadevaraya University
Kanikireddy, Vimala
India, Anantapur
Sri Krishnadevaraya University
Joy, P. A.
India, Pune
National Chemical Laboratory India
Konduru, Mohana Raju
India, Anantapur
Sri Krishnadevaraya University
Statistics
Citations: 48
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1007/s10965-011-9642-2
ISSN:
10229760
Research Areas
Environmental