Product Description
The BioDeviceLab 10 nm Gold NanoUrchins are precision-synthesized anisotropic gold nanostructures composed of a nanoscale core decorated with multiple sharp protrusions. Despite their small effective size, the branched “urchin-like” morphology creates localized plasmonic hot spots and substantially increases effective surface area compared to spherical gold nanoparticles of similar diameter.
At an effective diameter of approximately 10 nm, these nano-urchins exhibit a highly sensitive localized surface plasmon resonance (LSPR) response that is strongly influenced by changes in the surrounding dielectric environment. This makes them particularly well suited for applications requiring rapid plasmonic response, high spatial resolution, and compatibility with dense or confined sensing architectures, including capillary microfluidics and lab-on-chip systems.
The nanoparticles are supplied as a stable aqueous colloidal suspension with a characteristic deep red coloration. The 500 mL bulk format enables scalable assay development, surface functionalization, and repeated experimental use in biosensor development and biodevice validation workflows.
Intended Use
This product is intended for research applications including:
• High-resolution plasmon-enhanced biosensor development
• Refractive index and LSPR-based sensing
• Optical and colorimetric assay amplification
• Surface-enhanced spectroscopic techniques
• Protein, antibody, and ligand conjugation
• Microfluidic and lab-on-chip integration
• Biodevice calibration and benchmarking
Principle of Operation
Gold NanoUrchins exhibit localized surface plasmon resonance arising from collective oscillation of conduction electrons across their branched geometry.
• Sharp nanoscale protrusions generate localized electromagnetic hot spots.
• LSPR peak position and magnitude are highly sensitive to local refractive index changes.
• Biomolecular binding produces amplified plasmonic shifts compared to spherical nanoparticles.
• Increased surface area supports high-density probe loading and rapid interaction kinetics.
Optical & Physical Characteristics
Nanostructure type: Gold NanoUrchin
Effective diameter: ~10 nm
Plasmonic response: Broad visible-range LSPR (~515–560 nm, morphology dependent)
Particle concentration: ~2 × 10¹³ structures/mL
Weight concentration: ~0.2–0.5 mg/mL
Size dispersity: <20% (effective diameter)
Surface area: Strongly enhanced relative to spherical AuNPs
Surface chemistry: Compatible with passive adsorption and covalent functionalization
Supplied volume: 500 mL
Selectivity & Compatibility
Gold NanoUrchins are chemically inert and compatible with proteins, nucleic acids, polymers, and common biological buffers. Their small size and branched morphology enable efficient probe immobilization while maintaining stability in microfluidic and biodevice environments.
Package Contents
Each unit contains:
• 500 mL of 10 nm gold NanoUrchin colloidal suspension
• Optical and morphological quality control documentation
Required Materials (Not Provided)
• UV–Vis spectrophotometer
• Optional Raman spectrometer (for SERS workflows)
• Standard laboratory pipettes and containers
• Buffers compatible with downstream conjugation
Sample Handling & Use
• Gently swirl before use to ensure uniform dispersion.
• Avoid vigorous shaking or sonication that may alter morphology.
• Dilute using compatible aqueous buffers if required.
• Maintain clean laboratory practices to preserve colloidal integrity.
Quality Control
• Each production lot is evaluated for plasmonic response, optical consistency, and morphological uniformity.
• Batch-to-batch reproducibility supports reliable biosensor and assay development.
Storage & Stability
• Store at 4–25 °C.
• Do not freeze.
• Protect from prolonged exposure to light.
• Proper storage preserves optical performance and colloidal stability.
Limitations
• For research use only.
• Not intended for diagnostic or therapeutic applications.
• Optical response may vary depending on buffer composition and functionalization strategy.
Applications
• High-resolution plasmonic biosensors
• LSPR-based refractive index sensing
• Optical and colorimetric assays
• Surface-enhanced spectroscopic techniques
• Microfluidic and lab-on-chip systems
• Translational biosensing research
