A novel route for the preparation of thermally sensitive core-shell magnetic nanoparticles

Preparation ofN-Isopropylacrylamide/Itaconic Acid Magnetic Nanohydrogels by Modified Starch as a Crosslinker for Anticancer Drug Carriers

“…the collapse of polymer chains and shrinkage of the nanohydrogel network [23]. Also, it is obvious that the diameter decreasing in the PNIPAAm-g-(starch-MNPs) is greater than the (PNIPAAm-co-IA)-g-(starch-MNPs), which can be attributed to the more hydrophobicity of PNIPAAm in comparison with PNIPAAm-co-IA having IA hydrophilic moiety at 37 C.…”

“…By combining thermoresponsive polymers with magnetic nanoparticles, the hybrid materials are obtained that can be manipulated by two different stimuli: temperature and magnetic fields. Such dual responsive materials are of interest for a variety of applications ranging from magnetic separation or drug release systems to sensors and hyperthermic treatment of tumors [22,23]. Incorporating iron oxide nanoparticles in the polymer matrix provides a number of benefits, including: identifying the location of the drug attached to the hybrid nanoparticles using magnetic resonance imaging (MRI), minimizing toxicity, remotely and controllably releasing the drug, and increasing the efficacy of the chemotherapy drug [24].…”

“…crystal sizes, which are calculated by XRD patterns according to Scherrer's equation[23] from the most intense (311) peak at 2h ¼ 35.6 are 17.54, 17.56, and 26.47 nm for Fe 3 O 4…”

Thermoplastic Nanocomposites and Their Processing Techniques

“…During the last decade, due to the emergence of a new generation of hightechnology materials, the number of research groups involved in nanotechnology has increased exponentially covering a broad range of topics such as microelectronics (now known as nanoelectronics, because the critical dimension scale for modern devices has decreased to and /or below 100 nanometer (nm) (Paul & Robeson 2008)), polymer-based biomaterials (Haider et al,2007), nanoparticle drug delivery (Omer et al, 2011), miniemulsion particles (Zhang et al ., 2007;Wu et al, 2010)], layer-by-layer self-assembled polymer films (Lee & Cui 2009), electrospun nanofibers Haider et al, 2010), imprint lithography (Stephen et al, 1996), polymer blends and nanocomposites . The dimensional shift of materials from micro to nano produced theatrical changes in their physical properties and one such change is large surface area for a given volume (Haider et al,2007).…”

Stable aqueous dispersion of magnetic iron oxide core–shell nanoparticles prepared by biocompatible maleate polymers

“…A study on the functionalization of magnetic nanoparticles with poly(maleic anhydride‐ alt ‐1‐octadecene) to water solubilization was reported . Maleic acid‐modified β‐cyclodextrin is used to transfer oleic acid stabilized iron oxide nanoparticles to aqueous phase via forming an inclusion complex between surface‐carboxylic acid groups . Researchers have thus speculated that the (–COO – ) of polymers and iron ion would interact and that the electrostatic repulsion may make the Fe 3 O 4 MNPs polymers stable.…”