200 nm BioReady Magnetic Gold Nanoshells for Covalent Conjugation

Regular price $165.00 USD

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As a global leader in gold nanoparticle production, nanoComposix specializes in providing high-purity and monodisperse nanomaterials – delivering the quality you need for consistent results.1,2

200 nm magnetic gold nanoshells combine the plasmonic properties of gold nanoparticles with the separation capability of a magnetic bead. The magnetic core allows for easy manipulation such as separation or concentration and enhances particle utility for a variety of therapeutic and diagnostic applications such as biosensors, lateral flow assays, SERS, drug delivery, and photothermal therapy.

BioReady Magnetic Gold Nanoshells offer a carboxyl ligand (lipoic acid) that is covalently bound to the metal surface enabling subsequent covalent conjugation. Antibodies and other amine-containing biomolecules efficiently bind to carboxyl gold nanoshells using EDC-NHS chemistry to make highly stable conjugates. Review our conjugation protocol or contact our experts for support.

nanoComposix provides high quality nanomaterials that are precisely engineered and highly characterized. All products are supplied with batch-specific CoAs including TEM, DLS, Zeta, & UV-Vis characterization data.

Intended for Research Use Only. Contact us for custom formulations, ISO 13485/cGMP compliant materials, or bulk supply requirements.


  1. Gold Nanoparticles Market - Global Industry Analysis, Size, Share, Growth, Trends, and Forecast, 2023-2031. https://www.transparencymarketresearch.com/gold-nanoparticles-market.html (accessed 2024-02-15).
  2. Gold Nanoparticles Market Size, Share Trends, By Type (Nanorods, Nanoshells, Nanocages, Others), By End-use (Electronics, Healthcare, Chemicals, Others), By Application (Imaging, Sensors, Others), and By Region Forecast to 2030. https://www.reportsanddata.com/report-detail/gold-nanoparticles-market (accessed 2024-02-15).
Surface Carboxyl
Description Covalently bound. Conjugatable surface.
Solvent 0.02 mM potassium carbonate
Surface chemistry Lipoic acid
TEM Diameter 205 ± 20 nm
CV ≤ 15%
Example Certificate of Analysis (CoA) Download
Safety Data Sheet (SDS) 10 OD (BioReady)
Storage & Handling Download
Protocols Antibody Purification
BioReady 200 nm Carboxyl Magnetic Gold Nanoshell Covalent Conjugation
Tutorial video: Covalent Coupling of Antibodies to Carboxyl Gold Nanoparticles
White Paper Magnetic gold nanoshells – Enabling advances in diagnostic and therapeutic technologies
Expected Ranges
Zeta potential ≤ –40 mV
Peak wavelength (λmax) 780–890 nm