1. Anđela Gavran, Serbia
2. Marija Pergal, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia, Serbia
3. Teodora Vićentić, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia, Serbia
4. Igor Pašti, Faculty of Physical Chemistry, University of Belgrade, Belgrade, Serbia, Serbia
5. Danica Bajuk-Bogdanović, Faculty of Physical Chemistry, University of Belgrade, Belgrade, Serbia, Serbia
6. Marko Spasenović, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia, Serbia
Laser-induced graphene (LIG) has become the subject of extensive research over the past decade and has been explored and applied for applications in sports and medicine. Its excellent characteristics, such as good electrical conductivity, piezoresistivity, flexibility, and low-cost production, make it a suitable material for use in wearable electronics and sensors. Poly(dimethylsiloxane) (PDMS) has attracted attention as a substrate for wearable sensors due to its good biocompatibility, elasticity, and mechanical characteristics. However, due to the lack of carbon atoms in its structure, in order to induce graphene on it, PDMS needs to be modified with carbon-rich glycol compounds such as diethylene glycol (PDMS/DEG) and ethylene glycol (PDMS/EG). This paper presents the laser induction of graphene on a PDMS/DEG and PDMS/EG polymer composite, electronic testing, and physicochemical characterization. By optimizing laser parameters, LIG with the lowest electrical resistance was achieved, and it was observed that samples with diethylene glycol appeared visually better than those with ethylene glycol. Raman spectroscopy revealed characteristic D, G, and 2D bands, as expected for graphene. The assignment of bands in infrared spectroscopy and SEM micrographs confirmed the structure of graphene. Characterization revealed that increasing the proportion of glycol compounds led to higher quality graphene. In the future, this material has the potential to be used for measuring physiological processes and limb movements.
Ključne reči :
Tematska oblast:
SIMPOZIJUM B - Biomaterijali i nanomedicina
Datum:
28.06.2025.
Contemporary Materials 2025 - Savremeni Materijali
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