The motivation for this work was to develop new protic ionic liquids (PILs) as additives for the lubrication of micro and nanoelectromechanical systems (MEMS and NEMS). Ten PILs based on the combination of methylimidazolium ([MIMH]). 4-picolinium ([4-picH]). pyridinium ([PyrH]). https://countryscenesaddleryandpetsuppliers.shop/product-category/saddle-bags/