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Title: Viruslike Nanoparticles with Maghemite Cores Allow for Enhanced MRI Contrast Agents

Journal Article · · Chemistry of Materials
DOI: https://doi.org/10.1021/cm504029j · OSTI ID:1167524
 [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1];  [2];  [1];  [3]
  1. Indiana Univ., Bloomington, IN (United States)
  2. European Molecular Biology Lab. (EMBL), Hamburg (Germany)
  3. King Abdulaziz Univ., Jeddah (Saudi Arabia); Indiana Univ., Bloomington, IN (United States)

Here, for the first time, we demonstrate formation of virus-like nanoparticles (VNPs) utilizing gold-coated iron oxide nanoparticles as cores and capsidprotein of brome mosaic virus (BMV) or hepatitis B virus (HBV) as shells. Further, utilizing cryo-electron microscopy and single particle methods, we are able to show that the BMV coat on VNPs assembles into a structure very close to that of a native virion. This is a consequence of an optimal iron oxide NP size (~11 nm) fitting the virus cavity and an ultrathin gold layer on the maghemite cores, which allows for utilization of SH-(CH2)11-(CH2-CH2-O)4-OCH2-COOH as capping molecules to provide sufficient stability, charge density, and small form factor. MRI studies show unique relaxivity ratios that diminish only slightly with gold coating. In conclusion, a virus protein coating of a magnetic core mimicking the wild-type virus makes these VNPs a versatile platform for biomedical applications.

Research Organization:
Indiana Univ., Bloomington, IN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0010507
OSTI ID:
1167524
Alternate ID(s):
OSTI ID: 1440972
Journal Information:
Chemistry of Materials, Vol. 27, Issue 1; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 29 works
Citation information provided by
Web of Science

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Cited By (13)

Biocatalytically induced surface modification of the tobacco mosaic virus and the bacteriophage M13 journal January 2019
Novel roles for well-known players: from tobacco mosaic virus pests to enzymatically active assemblies journal January 2016
Coordination Polymers Derived from Non-Steroidal Anti-Inflammatory Drugs for Cell Imaging and Drug Delivery journal December 2015
Viral-based nanomaterials for plasmonic and photonic materials and devices
  • Petrescu, Dan Stefan; Blum, Amy Szuchmacher
  • Wiley Interdisciplinary Reviews: Nanomedicine and Nanobiotechnology, Vol. 10, Issue 4 https://doi.org/10.1002/wnan.1508
journal February 2018
Assembly and Characterization of HBc Derived Virus-like Particles with Magnetic Core journal January 2019
The influence of ligand charge and length on the assembly of Brome mosaic virus derived virus-like particles with magnetic core journal March 2018
Quantum dot encapsulation in virus-like particles with tuneable structural properties and low toxicity journal January 2017
Experimental and Theoretical Determination of the pH inside the Confinement of a Virus-Like Particle journal August 2018
Viruses, Artificial Viruses and Virus-Based Structures for Biomedical Applications journal April 2016
Clustering of Iron Oxide Nanoparticles with Amphiphilic Invertible Polymer Enhances Uptake and Release of Drugs and MRI Properties journal May 2019
Novel roles for well-known players: from tobacco mosaic virus pests to enzymatically active assemblies text January 2016
Assembly and Characterization of HBc Derived Virus-like Particles with Magnetic Core journal January 2019
Novel roles for well-known players: from tobacco mosaic virus pests to enzymatically active assemblies journal January 2016