Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Colloidal precipitates01:09

Colloidal precipitates

The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
Heterogeneous Catalysis01:22

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Chromosome-level genome assembly and annotation of the transverse lady beetle Coccinella transversoguttata.

The Journal of heredity·2026
Same author

Fibroblast Growth Factor 2-Immobilized Biointerfaces Drive Exogenous Transforming Growth Factor β1-Independent Chondrogenesis of Human Mesenchymal Stem Cell and Ectopic Cartilage Tissue Formation.

Biomaterials research·2026
Same author

Bis(2-ethylhexyl)tetrabromophthalate disrupts thyroid hormone signaling and causes visual impairment in zebrafish larvae.

Aquatic toxicology (Amsterdam, Netherlands)·2026
Same author

Characterization of self-emulsifying macadamia nut oil fermented by Epidermidibacterium keratini mutant EPI-7-i originated from skin flora as a novel cosmetic ingredient.

Scientific reports·2026
Same author

Characteristics of Drug Resistance Mutations in a Korean HIV/AIDS Cohort, and Risk Factors for Resistance Acquisition in ART-Experienced Patients.

Infection & chemotherapy·2026
Same author

Ultrasensitive electrochemical detection of clinically relevant genetic mutations via nanoparticle surface localized amplification and machine learning.

Biosensors & bioelectronics·2026

Related Experiment Video

Updated: Jun 23, 2026

Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating
08:04

Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating

Published on: February 20, 2016

Monosized core-shell Fe3O4(Fe)/Au multifunctional nanocrystals.

Hong-Ling Liu1, Jun-Hua Wu, Ji Hyun Min

  • 1Institute for Nano Science, Korea University, Seoul 136-713, Korea.

Journal of Nanoscience and Nanotechnology
|May 16, 2009
PubMed
Summary
This summary is machine-generated.

Researchers created novel magnetic-optic multifunctional nanocrystals with iron oxide cores and gold shells. These core-shell nanoparticles exhibit unique magnetic and optical properties, paving the way for advanced applications.

More Related Videos

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks
05:26

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks

Published on: February 10, 2023

Related Experiment Videos

Last Updated: Jun 23, 2026

Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating
08:04

Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating

Published on: February 20, 2016

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks
05:26

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks

Published on: February 10, 2023

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemistry

Background:

  • Multifunctional nanoparticles combine properties of different materials.
  • Core-shell nanostructures offer unique advantages in material design.
  • Iron oxide and gold nanoparticles have distinct magnetic and optical properties, respectively.

Purpose of the Study:

  • To synthesize highly crystalline, monosized Fe3O4(Fe)/Au magnetic-optic multifunctional nanocrystals.
  • To characterize the core-shell structure, size, and distribution of the synthesized nanocrystals.
  • To investigate the magnetic and optical properties of the novel nanocrystals.

Main Methods:

  • Modified polyol process for nanoparticle synthesis.
  • Two-step synthesis: seeding Fe3O4(Fe) core, followed by gold shell coating.
  • Characterization using spectroscopy (for oxidation states and plasmonics) and magnetic measurements.

Main Results:

  • Successful synthesis of crystalline, monosized Fe3O4(Fe)/Au core-shell nanocrystals.
  • Demonstration of the core-shell nanostructure with controlled particle size and distribution.
  • Spectroscopic analysis confirmed three iron oxidation states (Fe0, Fe+2, Fe+3) and gold nanoshell surface plasmon resonance.
  • Magnetic measurements indicated excellent magnetic susceptibility.

Conclusions:

  • The modified polyol process is effective for creating Fe3O4(Fe)/Au multifunctional nanocrystals.
  • The synthesized core-shell nanoparticles possess combined magnetic and optical properties.
  • These nanocrystals show potential for applications requiring magnetic-optic multifunctionality.