ArticleACS nano2010
Plasmon-resonant nanoparticles and nanostars with magnetic cores: synthesis and magnetomotive imaging.
Article in ACS nano, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed.
- Molecular and cellular imaging of the eye.Biomedical optics express · 2024Review
- Efficient cyanide sensing using plasmonic Ag/FeRSC advances · 2023Article
- Challenges and opportunities for SERS in the infrared: materials and methods.Nanoscale advances · 2023Review
- An Electrochemiluminescence Biosensor for the Detection of Alzheimer's Tau Protein Based on Gold Nanostar Decorated Carbon Nitride Nanosheets.Molecules (Basel, Switzerland) · 2022Article
- Magnetic particles in motion: magneto-motive imaging and sensing.Theranostics · 2022Review
- Preparation of Iron Oxide and Titania-Based Composite, Core-Shell Populated, Nanoparticulates Material by Two-Step LASER Ablation in Aqueous Media as Antimicrobial and Anticancer Agents.Bioinorganic chemistry and applications · 2022Article
- Nanostructured and Spiky Gold Shell Growth on Magnetic Particles for SERS Applications.Nanomaterials (Basel, Switzerland) · 2020Article
- Control of Arms of Au Stars Size and its Dependent Cytotoxicity and Photosensitizer Effects in Photothermal Anticancer Therapy.International journal of molecular sciences · 2019Article
- Synthesis and Properties of Magnetic-Optical Core-Shell Nanoparticles.RSC advances · 2017Article
- Eco-friendly (green) synthesis of magnetically active gold nanoclusters.Science and technology of advanced materials · 2017Article
- Synthesis of Janus plasmonic-magnetic, star-sphere nanoparticles, and their application in SERS detection.Faraday discussions · 2016Article
- Size- and Shape-Controlled Synthesis and Properties of Magnetic-Plasmonic Core-Shell Nanoparticles.The journal of physical chemistry. C, Nanomaterials and interfaces · 2016Article
- Extinction Coefficient of Gold Nanostars.The journal of physical chemistry. C, Nanomaterials and interfaces · 2015Article
- Deoxycholate bile acid directed synthesis of branched Au nanostructures for near infrared photothermal ablation.Biomaterials · 2015Article
- Synthesis of immunotargeted magneto-plasmonic nanoclusters.Journal of visualized experiments : JoVE · 2014Article
- Carbon dioxide hydrogenation to aromatic hydrocarbons by using an iron/iron oxide nanocatalyst.Beilstein journal of nanotechnology · 2014Article
- Article
- Spectral Characterization and Intracellular Detection of Surface-Enhanced Raman Scattering (SERS)-Encoded Plasmonic Gold Nanostars.Journal of Raman spectroscopy : JRS · 2013Article
- Article
- Dark-field circular depolarization optical coherence microscopy.Biomedical optics express · 2013Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Plasmon-resonant gold nanostars (NSTs) with magnetic cores were synthesized by a multistep sequence from superparamagnetic Fe3O4 nanoparticles (NPs) and evaluated as optical contrast agents under magnetomotive (MM) imaging conditions. Core-shell Fe3O4@Au NPs were prepared in nonpolar organic solvents with nanometer control over shell thickness and with good epitaxy to the Fe3O4 surface. Anisotropic growth was performed in micellar solutions of cetyltrimethylammonium bromide (CTAB) under mildly reducing conditions, resulting in NSTs with physical features similar to those produced from colloidal gold seeds. NSTs could be produced below 100 nm from tip to tip, but seed size had a significant impact on growth habit, with larger seed particles producing submicrometer-sized "morning stars". Both NSTs and aggregated core-shell NPs are responsive to in-plane magnetic field gradients and can provide enhanced near-infrared (NIR) contrast under MM conditions, but do so by different mechanisms. NSTs can modulate polarized NIR scattering with minimal translational motion, giving the appearance of a periodic but stationary "blinking", whereas core-shell NP aggregates require lateral displacement for signal modulation. The polarization-sensitive MM imaging modality offers the dual advantage of enhanced signal quality and reduced background signal and can be applied toward the detection of magnetomotive NSTs in heterogeneous biological samples, as illustrated by their detection inside of granular cells such as macrophages.
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