منابع مشابه
Magnetic Nanoparticles Embedded in a Silicon Matrix
This paper represents a short overview of nanocomposites consisting of magnetic nanoparticles incorporated into the pores of a porous silicon matrix by two different methods. On the one hand, nickel is electrochemically deposited whereas the nanoparticles are precipitated on the pore walls. The size of these particles is between 2 and 6 nm. These particles cover the pore walls and form a tube-l...
متن کاملDesigning and Characterizing Hyperpolarizable Silicon Nanoparticles for Magnetic Resonance Imaging
Magnetic Resonance Imaging (MRI) is one of the most powerful noninvasive tools for diagnosing human disease, but its utility is limited because current contrast agents are ineffective when imaging air-tissue interfaces, in regions with low signal-to-noise ratios, or in areas that undergo motion, like the heart and bowel. A technique called dynamic nuclear polarization can be used to hyperpolari...
متن کاملLong-T1 Silicon Nanoparticles for Hyperpolarized Magnetic Resonance Imaging
Introduction The use of nanoparticles for biomedical applications has benefited from rapid progress both in the nanoscale synthesis of materials with specific optical [1] and magnetic properties [2], and in the biofunctionalization of surfaces, allowing targeting in-vivo tracking, and therapeutic action [3]. For magnetic resonance imaging (MRI), superparamagnetic nanoparticles [2] have extended...
متن کاملMagnetic properties of superparamagnetic nanoparticles loaded into silicon nanotubes
UNLABELLED In this work, the magnetic properties of silicon nanotubes (SiNTs) filled with Fe3O4 nanoparticles (NPs) are investigated. SiNTs with different wall thicknesses of 10 and 70 nm and an inner diameter of approximately 50 nm are prepared and filled with superparamagnetic iron oxide nanoparticles of 4 and 10 nm in diameter. The infiltration process of the NPs into the tubes and dependenc...
متن کاملSilicon nanoparticles as hyperpolarized magnetic resonance imaging agents.
Magnetic resonance imaging of hyperpolarized nuclei provides high image contrast with little or no background signal. To date, in vivo applications of prehyperpolarized materials have been limited by relatively short nuclear spin relaxation times. Here, we investigate silicon nanoparticles as a new type of hyperpolarized magnetic resonance imaging agent. Nuclear spin relaxation times for a vari...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Magnetics
سال: 2014
ISSN: 0018-9464,1941-0069
DOI: 10.1109/tmag.2014.2325792