Collection: Gold Nanostars

Gold Nanostars for Advanced SERS, Imaging, and Photothermal Applications

Gold nanostars are engineered gold nanoparticles with a high surface area, spiky morphology, and strong electromagnetic field enhancement, making them ideal for demanding life science applications. Their unique structure supports applications in cancer photothermal therapy, surface‑enhanced Raman spectroscopy (SERS), ultrasensitive biosensing, and multimodal imaging.

Photothermal Gold Nanostars for Cancer Therapy

In cancer therapy, gold nanostars act as highly efficient photothermal agents, absorbing near‑infrared light and converting it into localized heat that selectively destroys tumor cells while sparing surrounding healthy tissue. Their multi‑branched “nanostar” morphology creates strong electric field enhancements at the tips (a “lightning‑rod” effect), leading to exceptionally high photothermal conversion efficiency compared with conventional gold nanospheres or nanorods.

Gold Nanostars for SERS and Ultrasensitive Detection

The ability of gold nanostars to generate intense electromagnetic “hot spots” at spike tips and narrow gaps makes them powerful substrates for surface‑enhanced Raman spectroscopy. These hot spots enable detection of trace‑level biomarkers such as DNA, proteins, exosomes, and pathogens at extremely low concentrations, supporting ultrasensitive recognition for early diagnostics and point‑of‑care testing.

Tunable Plasmonic Properties Across Visible–NIR Range

Gold nanostars offer tunable plasmonic properties, as their localized surface plasmon resonance (LSPR) peaks can be precisely adjusted across the visible to near‑infrared (NIR) window (roughly 600–1300 nm) by tailoring their size and spike geometry. This tunability, combined with their high surface area and ease of functionalization, makes gold nanostars attractive platforms for targeted drug delivery, controlled release, and label‑free optical readout in complex biological environments.

Multimodal Imaging and Theranostic Applications

Gold nanostars provide strong optical scattering and absorption, enabling real‑time multimodal imaging and theranostic (therapy + diagnostics) strategies. They can be used in dark‑field microscopy, photoacoustic imaging, and SERS tracking of drug delivery, allowing researchers to visualize particle distribution, monitor therapeutic response, and trigger localized photothermal treatment with a single nanoparticle platform. These combined capabilities position gold nanostars as leading agents for precise, minimally invasive cancer therapy and advanced diagnostic assays.

Available Gold Nanostars Products: