A disposable and flexible electrochemical sensor for the sensitive detection of heavy metals based on a one-step laser-induced surface modification: A new strategy for the batch fabrication of sensors

Laser-induced graphene incorporated with silver nanoparticles applied for heavy metal multi-detection

“…Recently, as an electrode material for a heavy metal sensor, a sensor made of Bi by an in situ method has been studied. 43 To compare this, the Bi/LIG electrode, which was fabricated in situ with Bi ions, was measured simultaneously for Cd, Pb, and Cu ions and compared with the measurement results of multiple heavy metal ions of AgNP/LIG electrodes. Heavy metal measurement of Bi/LIG electrodes was performed in situ by adding 600 μg L −1 Bi ions together with the heavy metal ions (Cd, Pb and Cu; concentration: 20, 40, 60, 80, 100, and 120 μg L −1 ) to be measured in 0.1 M acetate buffer.…”

Flexible Sweat Sensors: From Films to Textiles

“…In heavy metal ion monitoring, a preconcentration or predeposition time and voltage is applied to the surface of the working electrode to allow the measured metal ions to accumulate on the electrode surface, and then, a reverse voltage is applied to cause the measured metal ions to redissolve into solution, a method known as anodic solution voltammetry. Square wave anodic dissolution voltammetry (SWADV) can monitor heavy metal ions such as Zn, , Pb, Cd, Cu, and so on.…”

Organic small-molecule fluorescent probe-based detection for alkali and alkaline earth metal ions in biological systems

“…Currently, the commonly used methods for detecting metal ions are atomic absorption, [10][11][12] electrochemical sensing, [13][14][15] inductively coupled plasma mass spectrometry (ICP-MS), [16][17][18] and spectrophotometry. 19,20 Although these methods have made great contributions to ion detection, there are still some defects such as complex operation, low sensitivity, and inability to detect low concentration ions.…”