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Title: Intracellular Dynamics of Superparamagnetic Iron Oxide Nanoparticles for Magnetic Partical Imaging

Journal Article · · Nanoscale
DOI:https://doi.org/10.1039/c9nr01395d· OSTI ID:1530859
 [1];  [2];  [3];  [2]
  1. UNIVERSITY OF WASHINGTON
  2. University of Washington
  3. BATTELLE (PACIFIC NW LAB)

Superparamagnetic iron oxide nanoparticles (SPIONs) are a foundational platform for a variety of biomedical applications. Of particular interest is Magnetic Particle Imaging (MPI), which is a growing area of research and development due to its advantages including high resolution and sensitivity with positive contrast. There has been signicant work in the area of in vivo optimization of SPIONs for MPI as well as their biodistribution in and clearance from the body. However, little is known about the dynamics of SPIONs following cellular internalization which may limit their usefulness in a variety of potential imaging and treatment applications. This work shows a clear 20% decrease in magnetic performance of SPIONs, as observed by Magnetic Particle Spectroscopy (MPS), after internalization and systematic consideration of applicable factors that aect SPION signal generation, including microstructure, environment, and interparticle interactions. There is no observed change to SPION microstructure after internalization, and the surrounding environment plays little to no role in magnetic response for the SPIONs studied here. Interparticle interactions described by dipole-dipole coupling of SPIONs held close to one another after internalization are shown to be the dominant cause of decreased magnetic performance in cells. These conclusions were drawn from transmission electron microscopy (TEM) image analysis at relevant length scales, experimentally prepared and characterized SPIONs in varied environmental conditions, and theoretical modeling with Monte Carlo simulations.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1530859
Report Number(s):
PNNL-SA-141236
Journal Information:
Nanoscale, Vol. 11, Issue 16
Country of Publication:
United States
Language:
English

References (42)

Molecular imaging in living subjects: seeing fundamental biological processes in a new light journal March 2003
Cancer nanotechnology: opportunities and challenges journal March 2005
Stem Cell Imaging: From Bench to Bedside journal April 2014
Tomographic imaging using the nonlinear response of magnetic particles journal June 2005
Magnetic Particle Imaging for Real-Time Perfusion Imaging in Acute Stroke journal October 2017
Magnetic Particle Imaging: A Novel in Vivo Imaging Platform for Cancer Detection journal February 2017
Magnetic Particle Imaging tracks the long-term fate of in vivo neural cell implants with high image contrast journal September 2015
Magnetic Particle Imaging for Highly Sensitive, Quantitative, and Safe in Vivo Gut Bleed Detection in a Murine Model journal October 2016
Three-dimensional real-time in vivo magnetic particle imaging journal February 2009
X-Space MPI: Magnetic Nanoparticles for Safe Medical Imaging journal March 2012
Evaluation of PEG-coated iron oxide nanoparticles as blood pool tracers for preclinical magnetic particle imaging journal January 2017
Mixed Brownian alignment and Néel rotations in superparamagnetic iron oxide nanoparticle suspensions driven by an ac field journal September 2015
Towards Picogram Detection of Superparamagnetic Iron-Oxide Particles Using a Gradiometric Receive Coil journal July 2017
Magnetic particle imaging: kinetics of the intravascular signal in vivo journal September 2014
Magnetic Particle Imaging With Tailored Iron Oxide Nanoparticle Tracers journal May 2015
In vivo delivery, pharmacokinetics, biodistribution and toxicity of iron oxide nanoparticles journal January 2015
Monodisperse magnetite nanoparticles with nearly ideal saturation magnetization journal January 2016
Understanding and controlling the interaction of nanomaterials with proteins in a physiological environment journal January 2012
Parameters influencing the stealthiness of colloidal drug delivery systems journal August 2006
Nanoparticle size and surface properties determine the protein corona with possible implications for biological impacts journal September 2008
Impact of serum proteins on MRI contrast agents: cellular binding and T 2 relaxation journal January 2014
Intermolecular forces in biology journal May 2001
The EPR effect for macromolecular drug delivery to solid tumors: Improvement of tumor uptake, lowering of systemic toxicity, and distinct tumor imaging in vivo journal January 2013
From The Cover: Mechanics of receptor-mediated endocytosis journal June 2005
Endocytosis at the nanoscale journal January 2012
Pathways and mechanisms of endocytic recycling journal September 2009
Unambiguous observation of shape effects on cellular fate of nanoparticles journal March 2014
Endocytosis of nanomedicines journal August 2010
Ultra-large-scale syntheses of monodisperse nanocrystals journal November 2004
Hydrophobic Nanocrystals Coated with an Amphiphilic Polymer Shell:  A General Route to Water Soluble Nanocrystals journal April 2004
Aqueous dispersion of monodisperse magnetic iron oxide nanocrystals through phase transfer journal August 2006
Tracer design for magnetic particle imaging (invited) journal April 2012
Harmonic Simulation Study of Simultaneous Nanoparticle Size and Viscosity Differentiation journal January 2017
Lysosomal Acidification Mechanisms journal March 2012
Long term in vivo biotransformation of iron oxide nanoparticles journal June 2011
How the size distribution of magnetic nanoparticles determines their magnetic particle imaging performance journal May 2011
Size-dependent ferrohydrodynamic relaxometry of magnetic particle imaging tracers in different environments: Optimized tracers for magnetic particle imaging journal June 2013
Intracellular performance of tailored nanoparticle tracers in magnetic particle imaging journal May 2014
Massive Intracellular Biodegradation of Iron Oxide Nanoparticles Evidenced Magnetically at Single-Endosome and Tissue Levels journal July 2016
Biodegradation of Iron Oxide Nanocubes: High-Resolution In Situ Monitoring journal May 2013
Specific Gravity of Glycerol 1 journal December 1928
Formula for the Viscosity of a Glycerol−Water Mixture journal May 2008

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