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

ABSTRACT: The development of wearable sensors for remote patient monitoring and personalized medicine has led to a revolution in biomedical technology. Plasmonic metasurfaces that enhance Raman scattering signals have recently gained attention as wearable sensors. However, finding a flexible, sensitive, and easy-to-fabricate metasurface has been a challenge for decades. In this paper, a novel wearable device, the flexible, stretchable, and single-molecule-sensetive SERS-active sensor, is proposed. This device offers an unprecedented SERS enhancement factor in the order of 10¹¹, along with other long-desired characteristics for SERS applications such as a high scattering to absorption ratio (∼2.5) and a large hotspot volume (40 nm × 40 nm × 5 nm). To achieve flexibility, we use polydimethy

SUBMITTER: Haque Chowdhury MA 

PROVIDER: S-EPMC10334262 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature