Gold Nanodumbbells

Product Overview
Gold nanodumbbells are unique noble metal nanostructures with a distinct geometric shape, typically consisting of two hexagonal pyramids sharing a common base. These nanodumbbells exhibit prominent surface plasmon resonance (SPR) properties, especially in the longitudinal SPR characteristics within the visible to infrared spectrum. These properties make gold nanodumbbells highly suitable for applications in optical sensing, surface-enhanced Raman scattering (SERS), and photothermal therapy.

Product Features

• Surface Plasmon Resonance (SPR): Due to their distinctive shape and size, gold nanodumbbells show strong longitudinal SPR effects, with notable resonance absorption peaks.
• Polarization Dependency: The SPR effect of gold nanodumbbells is highly dependent on the polarization direction of incident light, making their optical properties variable with polarization.
• High Localized Field Enhancement: The tips and edges of gold nanodumbbells create strong localized electromagnetic field enhancements, improving SERS and photocatalytic performance.
• Biocompatibility: Gold nanodumbbells have good biocompatibility, making them suitable for biomedical applications such as drug delivery, sensing, and photothermal therapy.

Applications

• Surface-Enhanced Raman Scattering (SERS): Due to their SPR properties, gold nanodumbbells play a key role in preparing SERS substrates for enhanced detection.
• Biosensing and Photothermal Therapy: With their excellent optical properties, gold nanodumbbells have wide potential in biosensing, photothermal therapy, and in vivo SERS detection.