ArticleInternational journal of molecular sciences2013
Gold-Coated Iron Composite Nanospheres Targeted the Detection of Escherichia coli.
Article in International journal of molecular sciences, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Engineered Nanoparticles for μPAD Nucleic Acid Detection.ACS omega · 2025Article
- A Review of Magnetic Nanoparticle-Based Surface-Enhanced Raman Scattering Substrates for Bioanalysis: Morphology, Function and Detection Application.Biosensors · 2022Review
- Article
- Magnetic-Core/Gold-Shell Nanoparticles for the Detection of Hydrophobic Chemical Contaminants.Nanomaterials (Basel, Switzerland) · 2022Article
- Article
- The Effects of a Varied Gold Shell Thickness on Iron Oxide Nanoparticle Cores in Magnetic Manipulation, TNanomaterials (Basel, Switzerland) · 2020Article
- A single-tube sample preparation method based on a dual-electrostatic interaction strategy for molecular diagnosis of gram-negative bacteria.Mikrochimica acta · 2020Article
- Serological and molecular rapid diagnostic tests for Toxoplasma infection in humans and animals.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2020Review
- Magnetic Functionalized Nanoparticles for Biomedical, Drug Delivery and Imaging Applications.Nanoscale research letters · 2019Review
- Synthesis and Properties of Magnetic-Optical Core-Shell Nanoparticles.RSC advances · 2017Article
- Working principle and application of magnetic separation for biomedical diagnostic at high- and low-field gradients.Interface focus · 2016Review
- Biomolecular environment, quantification, and intracellular interaction of multifunctional magnetic SERS nanoprobes.The Analyst · 2016Article
- Core-shell of FePt@SiO2-Au magnetic nanoparticles for rapid SERS detection.Nanoscale research letters · 2015Article
- Black silicon as a platform for bacterial detection.Biomicrofluidics · 2015Article
- The convenient preparation of stable aryl-coated zerovalent iron nanoparticles.Beilstein journal of nanotechnology · 2015Article
- A novel enzyme-linked immunosorbent assay for detection of Escherichia coli O157:H7 using immunomagnetic and beacon gold nanoparticles.Gut pathogens · 2014Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We report the preparation and characterization of spherical core-shell structured Fe3O4-Au magnetic nanoparticles, modified with two component self-assembled monolayers (SAMs) consisting of 3-mercaptophenylboronic acid (3-MBA) and 1-decanethiol (1-DT). The rapid and room temperature synthesis of magnetic nanoparticles was achieved using the hydroxylamine reduction of HAuCl4 on the surface of ethylenediaminetetraacetic acid (EDTA)-immobilized iron (magnetite Fe3O4) nanoparticles in the presence of an aqueous solution of hexadecyltrimetylammonium bromide (CTAB) as a dispersant. The reduction of gold on the surface of Fe3O4 nanoparticles exhibits a uniform, highly stable, and narrow particle size distribution of Fe3O4-Au nanoparticles with an average diameter of 9 ± 2 nm. The saturation magnetization value for the resulting nanoparticles was found to be 15 emu/g at 298 K. Subsequent surface modification with SAMs against glucoside moieties on the surface of bacteria provided effective magnetic separation. Comparison of the bacteria capturing efficiency, by means of different molecular recognition agents 3-MBA, 1-DT and the mixed monolayer of 3-MBA and 1-DT was presented. The best capturing efficiency of E. coli was achieved with the mixed monolayer of 3-MBA and 1-DT-modified nanoparticles. Molecular specificity and selectivity were also demonstrated by comparing the surface-enhanced Raman scattering (SERS) spectrum of E. coli-nanoparticle conjugates with bacterial growth media.
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Registered trials
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