Work

Plasmonic wearable adhesive patch for a SERS-based sweat sensor

Year: 2025

Type: article

Abstract: reduced nanoparticles for Raman signal enhancement of sweat components. The design of the patch avoids the direct exposure of nanoparticles and the excitation laser to the skin. The volume ratio of polydimethylsiloxane to oleic acid in the adhesive mixture was optimized for maximum adhesion to various substrates with oil residue. The plasmonic paper employed here exhibited excellent limits of detection of 55.9 μM and 47.8 μM for the sweat components urea and lactate, respectively. By utilizing the skin-adhesive patch, the multiplexed detection of urea and lactate could be achieved directly from sweat using surface-enhanced Raman spectroscopy. The developed SERS patch can be potentially utilized as a wearable healthcare sensor for the molecular fingerprinting of body fluids and opens avenues for the development of such sensors in the field of wearable personalized healthcare devices.

Source: RSC Advances

DOI: 10.1039/d5ra00529a

Authors: Vineeth Puravankara, Anusree Morayi, Swithin Hanosh, Sajan D. George

Institution: Manipal Academy of Higher Education

Language: English

Topic: Gold and Silver Nanoparticles Synthesis and Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,042

Funders: Manipal Academy of Higher Education, Department of Science and Technology, Ministry of Science and Technology, India, Science and Engineering Research Board