ArticleAnalytical chemistry2026
Solvent-Assisted Modification of Laser-Induced Graphene for Surface-Enhanced Electrochemical Response.
Article in Analytical chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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10 authors.
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Abstract
The fabrication and application of laser-induced graphene (LIG) have received significant interest across various research fields, particularly in sensing technologies. Herein, we investigated the surface modification of LIG electrodes with different solvents and demonstrated that dimethyl sulfoxide (DMSO) enhances their electrochemical activity. Importantly, our findings reveal that solvent treatments themselves can induce significant modifications on the electrode surface (e.g., changes in functional groups, wettability, and morphology), which must be carefully considered in sensor design and optimization. The application of a microliter aliquot of DMSO to the LIG surface significantly altered its wettability, promoting a transition to hydrophilic behavior, which was verified by contact-angle measurements. AFM and XRD results indicate that DMSO treatment promotes the rearrangement of disordered carbon atoms, minimizing localized structural defects and enabling more efficient π-π stacking between graphene sheets. The cyclic voltammetric response of the [Fe(CN)
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