@article { ISI:000252416000015,
	title = {Co : CdS diluted magnetic semiconductor nanoparticles: radiation synthesis, dopant-defect complex formation, and unexpected magnetism},
	journal = {Chemistry of Materials},
	volume = {20},
	number = {2},
	year = {2008},
	month = {JAN},
	pages = {440-446},
	publisher = {AMER CHEMICAL SOC},
	type = {Article},
	address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA},
	abstract = {<p>Incorporating a dopant into a nanoparticle is a nontrivial proposition in view of the size dependent surface versus bulk energy considerations and the intrinsic proximity of the surface to the interior, which facilitates migration to the surface. If realized and controlled, however, it can open up new avenues to novel nanomaterials. Some previous studies have shown the dopability of nanosystems but only with specific surface functionalization. Here, we demonstrate the successful dopant incorporation via a new route of pulsed high energy electron induced synthesis. We choose a system Co:CdS (dilutely cobalt doped cadmium sulfide) in view of the well-known application-worthy properties of CdS and the potential possibility of its conversion to a diluted magnetic semiconductor of interest to spintronics. By using various techniques, we show that matrix incorporation and uniform distribution of cobalt are realized in US nanocrystals without the need for additional chemical or physical manipulation. Optical and photoluminescence properties also support dopant incorporation. Interestingly, although magnetism is realized, it is weak, and it decreases at higher cobalt concentration. First principle density functional calculations are performed to understand this counterintuitive behavior. These calculations suggest that the introduction of parent cation or anion vacancies lead to magnetic moment reduction, albeit marginally. However, with some Co impurity fraction in the octahedral interstitial site inside the wurtzite cage, the magnetic moment drops down drastically. This study reveals that defect states may have an interesting role in dopant stabilization in nanosystems, with interesting system dependent consequences for the properties.</p>},
	issn = {0897-4756},
	doi = {10.1021/cm702118w},
	author = {Bogle, Kashinath A. and Ghosh, Saurabh and Dhole, Sanjay D. and Bhoraskar, Vasant N. and Fu, Lian-feng and Chi, Miao-Fang and Browning, Nigel D. and Kundaliya, Darshan and Das, Gour P. and Ogale, Satishchandra B.}
}
@article { ISI:000303153800009,
	title = {Characterization of biocompatible NiCo2O4 nanoparticles for applications in hyperthermia and drug delivery},
	journal = {Nanomedicine-Nanotechnology Biology and Medicine},
	volume = {8},
	number = {4},
	year = {2012},
	month = {MAY},
	pages = {452-459},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Monodispersed, superparamagnetic nickel cobaltite (NCO) nanoparticles were functionalized using mercaptopropionic acid (MPA). MPA conjugates with NCO forming a metal-carboxylate linkage, with the MPA-MPA interaction occurring via formation of disulfide bonds, leaving another carboxyl end free for additional conjugation. The cytotoxicity studies on NCO-MPA show cell viability of similar to 100\% up to a dosage of 40 mu g/mL on SiHa, MCF7, and B16F10 cell lines, and on mouse primary fibroblasts. Time-dependent cell viability studies done for a duration of 72 hours showed the cell lines{\textquoteright} viability up to 80\% for dosages as high as 80 mu g/mL. Negligible leaching (\&lt;5 ppm) of ionic Co or Ni was noted into the delivery medium. Upon subjecting the NCO-MPA dispersion (0.1 mg/mL) to radiofrequency absorption, the nanoparticles were heated to 75 degrees C within 2 minutes, suggesting its promise as a magnetic hyperthermia agent. Furthermore, the amino acid lysine and the drug cephalexin were successfully adducted to the NCO system, suggesting its potential for drug delivery. From the Clinical Editor: NCO-MPA nanopartciles were found to be promising magnetic hyperthermia agents, suggesting potential future clinical applications. (C) 2012 Elsevier Inc. All rights reserved.</p>},
	keywords = {Cytotoxicity, drug delivery, Magnetic hyperthermia, Magnetic nanoparticles},
	issn = {1549-9634},
	doi = {10.1016/j.nano.2011.07.010},
	author = {Kale, Sangeeta N. and Jadhav, Anil D. and Verma, Seema and Koppikar, Soumya J. and Kaul-Ghanekar, Ruchika and Dhole, Sanjay D. and Ogale, Satishchandra B.}
}
