“…Hence, with the rapid developments in the modern world, chemical, environmental, and microbiological contaminants are significant pollutants that should be moderated and detected easily. The rapid growth and involvement of molecular sensing encouraged numerous researchers to explore various technologies toward the fabrication of economical, reproducible, and highly sensitive SERS-active substrates for label-free molecular detection (Vendamani et al, 2018a, 2018b, Ravi Kumar et al, 2021Moram et al, 2018;Bharati et al, 2018;Beeram et al, 2022;Rathod et al, 2022;Banerjee et al, 2022). The plasmonic nanostructures (NSs) with different dimensions on rough surfaces attracted researcher's interests owing to the exploration of SERS by Fleischmann et al in the seventies, witnessed through Raman enhancement of pyridine in the order of $10 6 on a rough metal silver electrode (Fleischmann et al, 1974).…”