ArticleNanomaterials (Basel, Switzerland)2018
Synthesis of Iron Oxide/Gold Composite Nanoparticles Using Polyethyleneimine as a Polymeric Active Stabilizer for Development of a Dual Imaging Probe.
Article in Nanomaterials (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 18 citations in OpenAlex.
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- Biotransformation and biological fate of magnetic iron oxide nanoparticles for biomedical research and clinical applications.Nanoscale advances · 2025Review
- Organic-Inorganic Hybrid Nanomaterials.Nanomaterials (Basel, Switzerland) · 2019Article
- Plasmonic Sensor Based on Interaction between Silver Nanoparticles and NiNanomaterials (Basel, Switzerland) · 2018Article
- Theranostics and contrast agents for magnetic resonance imaging.Biomaterials research · 2018Review
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Authors and funding
5 authors at 1 institution in 1 country.
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Abstract
The combination of magnetic and plasmonic properties using iron oxide/gold nanocomposite particles is crucial for the development of multimodal molecular imaging probes. In this study, iron oxide/gold composite nanoparticles (NanoIOGs) were synthesized via the on-site reduction of an Au precursor salt by polyethyleneimine (PEI) molecules attached to iron oxide nanoparticles (IONPs), and they were employed in magnetic resonance and dark-field microscope imaging. PEI is considered as a polymeric active stabilizer (PAS), acting as a reducing agent for the synthesis of Au and a dispersant for nanoparticles. When the IONPs prepared at the PEI concentration of 0.02 wt. % were used for the NanoIOG synthesis, Au nanoseeds were formed around the IONPs. The alloy clusters of IONPs/Au crystals were produced with further reduction depending on PEI concentration. The NanoIOGs exhibited superparamagnetism in a magnetic field and plasmonic response in a dark-field (DF) microscope. The sizes, morphologies, magnetizations, and
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