Magnetooptic sensor for remote evaluation of surfaces

Lee, S.J.; Song, Sang‐Hoon; Jiles, David; Hauser, H.

doi:10.1109/tmag.2005.851858

Cited by 93 publications

(15 citation statements)

References 11 publications

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“…Consequently, the magnetite nanoparticles mineralized in magnetic bacteria have perfect shape and size, and the magnetite nanoparticles are assembled into a highly ordered chain structure. Furthermore, the mineralized magnetite nanoparticles in magnetic bacteria are water soluble and biocompatible, which makes it suitable for being used in the fields of bioscience and biomedicine, such as separation for purification and immunoassay [6], drug target delivery [7,8], magnetic resonance imaging (MRI) [9,10] and hyperthermia [11]. However, the yield of mineralization of magnetite nanoparticles in magnetic bacteria is too low to make it practical for industrial applications.…”

Section: Introductionmentioning

confidence: 99%

In Situ Mineralization of Magnetite Nanoparticles in Chitosan Hydrogel

et al. 2009

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Based on chelation effect between iron ions and amino groups of chitosan, in situ mineralization of magnetite nanoparticles in chitosan hydrogel under ambient conditions was proposed. The chelation effect between iron ions and amino groups in CS–Fe complex, which led to that chitosan hydrogel exerted a crucial control on the magnetite mineralization, was proved by X-ray photoelectron spectrum. The composition, morphology and size of the mineralized magnetite nanoparticles were characterized by X-ray diffraction, Raman spectroscopy, transmission electron microscopy and thermal gravity. The mineralized nanoparticles were nonstoichiometric magnetite with a unit formula of Fe2.85O4and coated by a thin layer of chitosan. The mineralized magnetite nanoparticles with mean diameter of 13 nm dispersed in chitosan hydrogel uniformly. Magnetization measurement indicated that superparamagnetism behavior was exhibited. These magnetite nanoparticles mineralized in chitosan hydrogel have potential applications in the field of biotechnology. Moreover, this method can also be used to synthesize other kinds of inorganic nanoparticles, such as ZnO, Fe2O3and hydroxyapatite.

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Section: Introductionmentioning

confidence: 99%

In Situ Mineralization of Magnetite Nanoparticles in Chitosan Hydrogel

et al. 2009

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“…Ga is an effective dopant to increase crystallization temperature greatly and still maintain high crystallization speed. 4,5 It is known that phase-segregation is an important issue for phase-change memory. The stoichiometric compositions are expected to be the most stable compounds and the best choice for phase-change memory.…”

Section: The Crystallization Behavior Of Stoichiometric and Off-stoicmentioning

confidence: 99%

The crystallization behavior of stoichiometric and off-stoichiometric Ga–Sb–Te materials for phase-change memory

Cheng

Raoux

Jordan-Sweet³

2011

Applied Physics Letters

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The stoichiometric Ga4Sb6Te3 and Ga–Sb materials were systemically studied. The alloy Ga4Sb6Te3 shows a fast crystallization speed, very high crystallization temperature, Tx, and high electrical contrast. Although stoichiometric GaSb has similar performance and even faster crystallization speed, the electrical contrast is much lower. The other off-stoichiometric compounds we studied all have higher Tx than Ge2Sb2Te5 indicating a good amorphous stability. By raising the Sb/Te ratio with GaSb incorporation, Tx and the recrystallization time of melt-quenched, amorphous samples can be effectively increased. The stoichiometric Ga4Sb6Te3 with less likelihood of phase-segregation compared to nonstoichiometric compounds is a promising candidate for phase-change memory.

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“…Probe impedance values acquired in two dimensional surface scans provide a set of ranges (Udpa & Elshafiey, 2001). Magnetic flux maps could also be presented in image format using techniques such as magneto-optic eddy current technology (Lee & Song, 2005) or giant magneto-resistive sensors GMR field scanning (Chalastaras et al, 2004).…”

Section: Eddy Current Imagingmentioning

confidence: 99%