Table 6 Comparative overview of parameters for electrophysiological sensors
From: Advances and perspectives in fiber-based electronic devices for next-generation soft systems
No. | Fabrication process | Materials | Target signal type | SNR | Impedance @ 1 kHz | Biocompatibility & Contact stability |
|---|---|---|---|---|---|---|
1214 | Solution spinning | CNT | EKG | 30 | 20 kΩ | The fiber sensor is fabricated using a nontoxic material, CNT, and integrated into sportswear, where it exhibits relatively limited contact stability. |
2215 | Orbital spinning | PEDOT:PSS | EMG | - | 20 kΩ | PEDOT:PSS is a biocompatible mixed ionic and hyaluronic acid, as a skin extracellular matrix analogue, enhances fibre spinnability and skin adhesion. |
3216 | Suspension shearing-based coating | LMP | EMG | - | - | The BiLMP-coated fiber is biocompatibility and contact stability, as demonstrated by in vivo experiments, and can be securely sutured to biological tissue. |
457 | Wet spinning | PEDOT:PSS | Neural spike | - | 579 kΩ·μm2 | The FND, made of biocompatible PEDOT:PSS and fluorine rubber, enables stable neural recordings even in dynamic in vivo conditions by maintaining reliable tissue contact. |
5221 | Wet spinning | CNT | EEG & Neural spike | - | 17.44 MΩ·μm2 | Biocompatible CNTf microelectrodes enable stable signal acquisition even under dynamic in vivo conditions by minimizing tissue damage and maintaining reliable contact during mechanical deformation. |
