Colloidal gold nanostars for biomedical sensing application

Supriya Atta; Tuan Vo-Dinh

doi:10.1117/12.3003581

13 March 2024 Colloidal gold nanostars for biomedical sensing application

Supriya Atta, Tuan Vo-Dinh

Proceedings Volume PC12859, Colloidal Nanoparticles for Biomedical Applications XIX; PC1285903 (2024) https://doi.org/10.1117/12.3003581
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

We demonstrate here the facile synthesis of seed-mediated surfactant-free nanostars over a range of controlled spike lengths from 50 to 110 nm diameter and spike sharpness from 2 to 10 nm with a controlled morphology which can be achieved by changing the concentration of the chemicals required in this synthesis. To investigate the potential SERS sensing applications for point-of-care detection and real-time monitoring, we have utilized our gold nanostars for bacterial pathogens, and chronic disease biomarkers detection. Compared to other nanoparticle-based sensing applications, our optimized GNS promises to become a much more versatile and tunable SERS sensor.

Conference Presentation

Citation Download Citation

Supriya Atta and Tuan Vo-Dinh "Colloidal gold nanostars for biomedical sensing application", Proc. SPIE PC12859, Colloidal Nanoparticles for Biomedical Applications XIX, PC1285903 (13 March 2024); https://doi.org/10.1117/12.3003581

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