Gold Nanostars

Product Overview

Gold nanostars are gold nanoparticles with multiple sharp tips, which result in significant electric field enhancement at the sharp tips. These nanostars are synthesized using a chlorogold acid reduction method and surface-modified with HEPES. Due to their unique structure, gold nanostars exhibit exceptional performance in surface plasmon resonance (SPR) enhanced spectroscopy, particularly with strong optical absorption in the near-infrared region. This makes them highly suitable for applications in optical imaging, photothermal therapy, and biosensing.

Features

• Anisotropic Structure: Gold nanostars have a central core with multiple sharp tips, creating a multibranch nanoparticle structure that enhances their unique properties.
• Surface Plasmon Resonance (SPR): These nanoparticles show excellent SPR characteristics, especially in the near-infrared region, making them ideal for optical imaging and photothermal therapy.
• High Photothermal Conversion Efficiency: Gold nanostars efficiently convert absorbed light into heat, which is useful for photothermal therapy.
• Biocompatibility: Gold nanostars possess good biocompatibility, making them suitable for biomedical applications.

Applications

• Biosensing: Gold nanostars can be used as biosensor platforms, exploiting their surface-enhanced Raman scattering (SERS) capabilities to detect minute changes in biomolecules.
• Medical Imaging: The optical properties of gold nanostars make them suitable for optical imaging and photoacoustic imaging, providing high-contrast imaging for diagnostic purposes.
• Tumor Diagnosis and Photothermal Therapy: The strong near-infrared absorption of gold nanostars enhances tumor imaging contrast and generates heat for photothermal therapy, aiding in the destruction of tumor cells.
• Drug Delivery and Controlled Release: As drug carriers, gold nanostars can be used for targeted drug delivery and controlled release, improving therapeutic efficacy and reducing side effects.