Showing posts with label MRI. Show all posts
Showing posts with label MRI. Show all posts

Friday, 22 January 2016

Colloidal magnetic nanocrystal clusters: Review

Colloidal magnetic nanocrystal clusters: variable length-scale interaction mechanisms, synergetic functionalities and technological advantages.

Athanasia Kostopoulou, Alexandros Lappas

Nanotechnology Reviews 4, 595(2015)
Scheme summarizing common parameters, including, size and shape [surfaces] anisotropies, as well as exchange [interfaces] and dipolar [particle clustering] interactions. Each one of them alone or in synergy with one another may act in favor of enhanced magnetic properties (MS, HC) for surface-stabilized nanoscale structures. Nanoclusters may provide a modular carrier engineered to combine all such parameters for the benefit of their emerging application-specific tasks, for example, such as those required for contrast generation (r2) in magnetic resonance imaging (MRI) and heat dissipation (SLP) in magnetic hyperthermia.


Wednesday, 23 December 2015

Small is Smarter: Nano MRI Contrast Agents – Advantages and Recent Achievements - Gao - 2015 - Small - Wiley Online Library

Small is Smarter: Nano MRI Contrast Agents – Advantages and Recent Achievements.

Zhenyu Gao, Tiancong Ma, Enyu Zhao, Dominic Docter, Wensheng Yang, Roland H. Stauber and Mingyuan Gao
Small 12, 556 (2015)

Magnetic nanoparticles hold great potential as contrast agents for magnetic resonance imaging and advanced applications in multimodality imaging and drug carriers for cancer thranostics. To promote the development of this field, state-of-the-art achievements are summarized and fundamental scientific challenges are discussed

Friday, 23 October 2015

Review: Magnetic nanoparticles: applications in biomedicine

Magnetic nanoparticles: material engineering and emerging applications in lithography and biomedicine.
Yuping Bao, Tianlong Wen, Anna Cristina S. Samia, Amit Khandhar, Kannan M. Krishnan
Journal of Materials Science 51, 513 (2016) 

Thursday, 15 October 2015

Iron Oxide NPs for Multimodal Imaging and Magnetoresponsive Therapy

Iron Oxide Based Nanoparticles for Multimodal Imaging and Magnetoresponsive Therapy.
Nohyun Lee, Dongwon Yoo, Daishun Ling, Mi Hyeon Cho, Taeghwan Hyeon, and Jinwoo Cheon 
Chem. Rev. 115, 10637 (2015)
 

Tuesday, 15 September 2015

Recent Advances in Higher-Order, Multimodal, Biomedical Imaging Agents

Recent Advances in Higher-Order, Multimodal, Biomedical Imaging Agents.

James Rieffel, Upendra Chitgupi and Jonathan F. Lovell
Small 35, 4445 (2015)

Recent Advances in Biomedical Imaging Agents

Recent Advances in Higher-Order, Multimodal, Biomedical Imaging Agents.

James Rieffel, Upendra Chitgupi andJonathan F. Lovell
Small 11, 4445 (2015)

γFe2O3@Au Magnetic Gold Nanoflowers for Efficient Cancer Theranostics

Rational Design and Synthesis of γFe2O3@Au Magnetic Gold Nanoflowers for Efficient Cancer Theranostics.
Jie Huang, Miao Guo, Hengte Ke, Cheng Zong, Bin Ren, Gang Liu, He Shen, Yufei Ma, Xiaoyong Wang, Hailu Zhang, Zongwu Deng, Huabing Chen and Zhijun Zhang
An γFe2O3@Au core/shell-type magnetic gold nanoflower-based theranostic nano­platform is developed. It is integrated with ultrasensitive surface-enhanced Raman scattering imaging, high-resolution photo­acoustics imaging, real-time magnetic resonance imaging, and photothermal therapy capabilities


Monday, 23 February 2015

Core/shell NPs for MRI and Tomography

Multifunctional Fe3O4/TaOx Core/Shell Nanoparticles for Simultaneous Magnetic Resonance Imaging and X-ray Computed Tomography.
Nohyun Lee, Hye Rim Cho, Myoung Hwan Oh, Soo Hong Lee, Kangmin Kim, Byung Hyo Kim, Kwangsoo Shin, Tae-Young Ahn, Jin Woo Choi, Young-Woon Kim, Seung Hong Choi, and Taeghwan Hyeon
JACS 134, 10309 (2012)

normal.img-000.jpg
Schematic Illustration of Synthesis and Modification of Fe3O4/TaOx Core/Shell NPs

Tuesday, 22 May 2012

Wednesday, 28 March 2012

Magnetic particle imaging

X-Space MPI: Magnetic Nanoparticles for Safe Medical Imaging.
Patrick William Goodwill, Emine Ulku Saritas, Laura Rose Croft,Tyson N. Kim, Kannan M. Krishnan, David V. Schaffer, Steven M. Conolly
Advanced Materials Early view (2012)
Magnetic particle imaging (MPI) is an emerging medical imaging technique that could be a safer alternative to X-ray and CT using iodinated contrast agents, especially for patients with chronic kidney disease. Here we describe the overall technique, detail the latest advances in MPI theory, and discuss the optimal nanoparticle characteristics for MPI. We also show images taken using our latest MPI hardware, demonstrating MPI's already superb contrast and high sensitivity.

Saturday, 28 January 2012

Precession and relaxation of magnetic NP

Larmor precession and Debye relaxation of single-domain magnetic nanoparticles.
Zs. Jánosfalvi, J. Hakl and P.F. de Châtel
ArXiv 1201.5236 (2012)
Specific absorption rate as a function of frequency !, parameterized by field strength H0. Thick lines correspond to linear polarized cases, while dashed ones to circular polarized cases. Auxiliary thin line is drawn to explore behavior around resonance ! = 1. Maximum reached for each circular polarized case when condition ! > !L is fulfilled.

Sunday, 13 November 2011

Magnetic capsules for NMR

Magnetic Capsules for NMR Imaging: Effect of Magnetic Nanoparticles Spatial Distribution and Aggregation.
Azhar Zahoor Abbasi, Lucía Gutierrez, Loretta L. del Mercato, Fernando Herranz, Oksana Chubykalo-Fesenko, Sabino Veintemillas-Verdaguer, Wolfgang J. Parak,M Puerto Morales, Jesus M Gonzalez, Antonio Hernando, and Patricia de la Presa
J. Phys. Chem. C 115, 6257 (2011)


Wednesday, 24 August 2011

FeO NPs for MRI

Large-Scale Synthesis of Uniform and Extremely Small-Sized Iron Oxide Nanoparticles for High-Resolution T1 Magnetic Resonance Imaging Contrast Agents.
Byung Hyo Kim, Nohyun Lee, Hyoungsu Kim, Kwangjin An, Yong Il Park, Yoonseok Choi, Kwangsoo Shin, Youjin Lee, Soon Gu Kwon, Hyon Bin Na, Je-Geun Park, Tae-Young Ahn, Young-Woon Kim, Woo Kyung Moon, Seung Hong Choi, and Taeghwan Hyeon
JACS 133, 12624 (2011)