Fig. 6
From: Construction of liquid metal-based soft microfluidic sensors via soft lithography
Application of LM-based flexible in biosensing a schematic diagram of the fabrication process of the glucose sensor. b Cyclic voltammograms of AuNPs/MXene/LM electrodes before (black) and after (red) immobilizing GOx in 10 mM nitrogen-saturated PBS (pH = 7.4) at scan rate of 10 mV s−1. Inset is the calibration curves of corresponding redox current (μA) versus square root of scan rates (mV1/2 s−1/2). c Typical amperometric responses and its calibration curves (inset, n = 3) of GOx/AuNPs/MXene/LM biosensor with successive additions of glucose from 0 to 4 mM in a continuously stirred (300 rpm) 10 mM PBS, applied potential: − 0.2 V, sampling interval: 0.1 s. d Selectivity of the glucose sensor with sequential additions of 0.5 mM glucose, 0.2 mM of ascorbic acid (AA) and dopamine (DA). e and f Cyclic voltammograms of AuNPs/MXene/LM electrodes before and after twisting (e) and bending (f) at different angles. Dash lines recorded when the electrodes restored to the unstressed state; scan rate: 100 mV s−1