Recycled additive manufacturing feedstocks with carboxylated multi-walled carbon nanotubes toward the detection of yellow fever virus cDNA

Recycled additive manufacturing sensing platforms are fabricated with carboxylated multi-walled carbon nanotubes (COOH-MWCNT) exhibit enhanced electrochemical biosensor performance allowing for the direct coupling of biorecognition element to COOH-MWCNT preparation an genosensor detection yellow fever virus cDNA. Bespoke filaments was produced using recycled poly(lactic acid) (rPLA, 65 wt%), polyethylene succinate (PES, 10 black (CB, 15 and (10 wt%) which exhibits over that commercial filament. A bespoke all-in-one manufactured electroanalytical cell is proposed, working, reference counter electrodes in addition a modification rim allows facile production biosensors through application droplets. The applied Virus cDNA anodic square wave voltammetry; linear dynamic range (LDR) 0.5–15 µM R2 0.9995, sensitivity 177 ± 2 µA µM−1, limit (LOD) 0.138 µM, quantification (LOQ) 0.859 were obtained. This work highlights how filament can enhance biosensing platforms, whilst feedstock improve end-product sustainability.