NDLI: Effect of the hybrid composition on the physicochemical properties and morphology of iron oxide

Content Provider	Springer Nature Link
Author	Barnett, C. M. Gueorguieva, M. Lees, M. R. McGarvey, D. J. Darton, R. J. Hoskins, C.
Copyright Year	2012
Abstract	Hybrid nanoparticles (HNPs) formed from iron oxide cores and gold nano-shells are becoming increasingly applicable in biomedicine. However, little investigation has been carried out on the effects of the constituent components on their physical characteristics. Here we determine the effect of polymer intermediate, gold nano-shell thickness and magnetic iron oxide core diameter on the morphological and physical properties of these nano-hybrids. Our findings suggest that the use of polymer intermediate directly impacts the morphology of the nanostructure formed. Here, we observed the formation of nano-sphere and nano-star structures by varying the cationic polymer intermediate. The nano-stars formed have a larger magnetic coercivity, T $_{2}$ relaxivity and exhibited a unique characteristic nano-heating pattern upon laser irradiation. Increasing the iron oxide core diameter resulted in a greater T $_{2}$ relaxivity enhanced and nano-heating capabilities due to increased surface area. Increasing the gold nano-shell thickness resulted in a decreased efficiency as a nano-heater along with a decrease in T $_{2}$ relaxivity. These results highlight the importance of identifying the key traits required when fabricating HNPs in order to tailor them to specific applications.
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF
ISSN	13880764
Journal	Journal of Nanoparticle Research
Volume Number	14
Issue Number	10
e-ISSN	1572896X
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-09-08
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hybrid nanoparticle Magnetic nanoparticle Gold nano-shell Surface plasmon resonance MRI contrast agent Optics, Optoelectronics, Plasmonics and Optical Devices Inorganic Chemistry Nanotechnology Characterization and Evaluation of Materials Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Atomic and Molecular Physics, and Optics Condensed Matter Physics Bioengineering Modeling and Simulation

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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