Lignosulfonate-assisted synthesis of platinum nanoparticles deposited on multi-walled carbon nanotubes for biosensing of glucose

Reagentless Glucose Biosensor Based on Combination of Platinum Nanostructures and Polypyrrole Layer

“…Presented in this study glucose biosensor based on the GR/PtNS/PD/GOx electrode was 1.90 times more sensitive (10.1 μA/(mM cm 2 )) than that based on the GR/PtNS/PD/GOx/Ppy electrode (5.31 μA/(mM cm 2 )). The sensitivity of GR/PtNS/PD/GOx/Ppy electrode was 1.11 times higher in comparison with the results obtained using the GC/MWCNT/LS/PtNPs/PEI/GOx electrode (4.77 μA/(mM cm 2 )) [ 31 ] and 1.75 times higher compared to the GR/DGNs/(PD/GOx) 3 /Ppy electrode (3.03 μA/(mM cm 2 ) [ 43 ]. The values of LOD for glucose biosensors based on GR/PtNS/PD/GOx and GR/PtNS/PD/GOx/Ppy electrodes were evaluated as 0.198 and 0.561 mM, respectively.…”

“…The LR obtained for the glucose biosensor based on the Pt electrode modified with polyvinylferrocenium perchlorate (PVF + ClO 4 − ), PtNPs (25nm) and immobilized poly- o -phenylenediamine (p o PD) and GOx (Pt/PVF + ClO 4 − /PtNPs (25nm) /p o PD-GOx, up to 9.64 mM) was 4.05 times narrow than for the GR/PtNS/PD/GOx/Ppy electrode presented here [ 14 ]. The developed glucose biosensor based on the GR/PtNS/PD/GOx/Ppy electrode was characterized by 2.17 and 27.9 times wider values of LR than glucose biosensors based on ITO/PtNCs (1.76nm) /UiO-66- g -P2VP electrode (up to 18 mM) [ 33 ] and based on GC electrode covered with a hybrid of multi-walled carbon nanotubes (MWCNT) and lignosulfonate (LS) decorated with PtNPs and modified with polyethyleneimine (PEI) and GOx (GC/MWCNT/LS/PtNPs (11.07nm) /PEI/GOx (up to 1.4 mM) [ 31 ].…”

“…electrode (up to 18 mM) [33] and based on GC electrode covered with a hybrid of multiwalled carbon nanotubes (MWCNT) and lignosulfonate (LS) decorated with PtNPs and modified with polyethyleneimine (PEI) and GOx (GC/MWCNT/LS/PtNPs(11.07nm)/PEI/GOx (up to 1.4 mM) [31].…”

“…Palladium [ 15 ], platinum or gold nanoparticles (PtNPs [ 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ] or GNPs [ 16 , 17 , 32 ]), platinum nanoclusters (PtNCs) [ 33 ], platinum nanostructures (PtNS [ 34 , 35 , 36 ]) or gold nanostructures [ 19 , 37 , 38 , 39 , 40 , 41 , 42 , 43 ], and carbon nanotubes [ 9 , 44 ] are used in various fields of modern science, medicine, and industry [ 4 , 5 ]. Nanoparticles have applications in radiation and photothermal therapy, nanodiagnostic [ 25 ], and genosensor [ 20 ].…”

Lignosulfonate-Assisted In Situ Deposition of Palladium Nanoparticles on Carbon Nanotubes for the Electrocatalytic Sensing of Hydrazine

“…Also, in prior research, we have introduced a sustainable method for the synthesis of silver and platinum nanoparticles on multi-walled carbon nanotubes supported by lignosulfonate. This approach omitted the need for special equipment or elevated temperatures, and the lignosulfonate functioned as both a reducing and stabilising agent [56,57]. By utilizing the interactions between LS methoxyphenol groups and noble metal ions, we were able to acquire catalytically active metal particles within the MWCNT/LS matrix.…”