Research

Wearable SERS Sensors

flexible stretchable and single molecule sensitive sers acti

This project focuses on the development of a groundbreaking Flexible, Stretchable, and Single-molecule-sensitive SERS-active sensor. This innovative sensor utilizes gold nanoparticles on a polydimethylsiloxane (PDMS) substrate to achieve flexibility, stability, transparency, and biocompatibility.

Single molecule sensitive SERS active sensor 1

The sensor demonstrates an exceptional SERS Enhancement Factor of approximately 10^11, surpassing previous limits, while maintaining a high scattering-to-absorption ratio and a large hotspot volume.

Single molecule sensitive SERS active sensor 2

Numerical calculations confirm the sensor’s reliability in providing robust SERS performance even when subjected to bending or stretching. This research represents a significant advancement in the field of SERS applications, opening new possibilities for sensitive and reliable bio-analyte detection.

Single molecule sensitive SERS active sensor 3

Published work 1

  1. Flexible, stretchable, and single-molecule-sensitive SERS-active sensor for wearable biosensing applications

    RSC Advances 2023 Nishat Tasnim

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