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Page 20 of 38                                                                       Zhu et al. Soft Sci 2024;4:17  https://dx.doi.org/10.20517/ss.2024.05

                                                                                                  -1
                Pressure  GO-PVDF/BTO Piezoelectric NFs textiles +   Piezoelectric fiber   Piezoelectric  Sp = 10.89 ± 0.5 mV·kPa  80~230 kPa  -  8,500  [62]
                         PU substrate                  textiles
                Strain*  PANI coated rGO               Filled-type FCPCs  Resistive  GF = -78        Max = 10%         -              1,000    [40]
                         on textile substrate
                Strain*  CNTs/PDMS                     Interlocked microdome  Resistive  GF = 27.8 (0%-40%),   Max = 120%  18/10 ms   -        [46]
                                                       array                       1,084 (40%-90%),
                                                                                   9,617 (90%-120%)
                Strain   AgNW/DS on  strain-engineered stretchable  Patterned circuit  Resistive  GF = ~4.5 (0%~25%),   0%~68%  -     1,000    [80]
                         substrate                                                 ~33 (25%~68%)
                Strain   Pre-stretching CNTs@TPU fiber felt  Micro-cracks + micro-  Resistive  GF = 428.5 (0%~100%),   0%~300%  70/70 ms  10,000  [81]
                                                       contacts                    9,268.8 (100%~220%),
                                                                                   83,982.8 (220%-300%)
                Strain   Vertical graphene on PDMS     Micro-cracks    Resistive   GF > 5,000        0%~30%            200/100 ms     10,000   [82]
                Strain   Laser scribed graphene        Micro-cracks    Resistive   GF = 11 (0%~2.5%),   0%~10%         -              1,000    [83]
                                                                                   92 (2.5%~4.5%),
                                                                                   673 (4.5%~5%)
                Strain   PDMS/GO/PDMS                  Sandwich-type FCPCs +  Resistive  GF = 2,175.8  -               -              1,000    [84]
                                                       micro-cracks
                Strain   NR-NR/CNT-NR                  Sandwich-type FCPCs +  Resistive  GF = 2,280  Max = 500%        21 ms          2,000    [85]
                                                       micro-cracks
                Strain   PDMS/GO/PDMS                  Sandwich-type FCPCs +  Resistive  GF = 1,054  Max = 26%         -              500      [87]
                                                       micro-cracks
                                              3+
                                                 2+
                Strain   Ti C Tx MXene/CSPMXPy-x/Fe +Cu    Mxene filled-hydrogels  Resistive  GF = 4.64  Max > 300%    -              100      [90]
                          3 2
                         hydrogels
                Strain   SN-PAAM hydrogels             Conductive hydrogels  Resistive  GF = 1.62~2.46  Max = 1,836%   120~130 ms     200      [91]
                Strain   PVA/NaCl hydrogels            Conductive hydrogels  Resistive  GF < 2.1     0.5%~100%         -              200      [93]
                Strain   PU-IL ionogels                Conductive ionogels  Resistive  GF = 1.54     0.1%~300%         -              1,000    [100]
                Strain*  PPBN-hydrogel                 Conductive hydrogels  Resistive  GF = 18.28   6%~268.9%         -              1,000    [122]
                Strain*  ILs/TPU ionogel fiber         Conductive ionogel fiber Resistive  GF = 3.35  0.05%~700%       170/120 ms     2,000    [123]
                Strain*  TPU/MXene/AgNWs-TPU-          Two filled-type FCPCs   Capacitive  GF = 1.21  0%~150%          210/280 ms     2,000    [73]
                         TPU/MXene/AgNWs               sandwiched a dielectric
                                                       layer
                                                                                           -1
                Shear*   CNTs/PDMS-Ni electrodes/resistor array/PI  Pressure sensor array  Resistive  Ss = 36.137 N  0-1.5 N  -       -        [106]
                         dielectric/Ni electrodes
                                                                                            -1
                Shear*   Carbon fabric + CIP/PDMS flagella array +   Parallel plate +   Capacitive  Ss = 0.0752 N    0.015~1.3 N  -   -        [103]
                         carbon fabric                 unilateral flagella array   (0.015~0.50 N),
                                                                                        -1
                                                                                   0.0177 N
                                                                                   (0.50-1.30 N)
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