Investigation on the lateral line systems of two cavefish: Sinocyclocheilus Macrophthalmus and S. Microphthalmus (Cypriniformes: Cyprinidae)

Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing

“…As shown in Figures 3c and 5f, the annealing process significantly enhanced the piezoelectric response, which was verified by previous studies for both PVDF and P(VDF-TrFE) [41,42,43]. Directional sensing is universal in biological sensory organs such as hair cells in the inner ear, lateral line neuromasts of fish, and mechanosensitive hair sensilla of insects [44,45,46]. Well-aligned P(VDF-TrFE) nanofibers are promising materials to mimic the directional strain sensing functions with high mechanosensitivity.…”

Development of a Flexible Artificial Lateral Line Canal System for Hydrodynamic Pressure Detection

“…In a prior study, we investigated the lateral line systems of Sinocyclocheilus Macrophthalmus and S. Microphthalmus , which live in the karst caves in Guangxi, China [5]. As shown in Figure 1, both superficial and canal lateral line systems can be observed in S. Macrophthalmus .…”

“…Compared with surface fish, some cavefish living in dark environments possess more sensitive lateral line systems to compensate for their degenerative vision [ 4 ]. In a prior study, we investigated the lateral line systems of Sinocyclocheilus Macrophthalmus and S. Microphthalmus , which live in the karst caves in Guangxi, China [ 5 ]. As shown in Figure 1 , both superficial and canal lateral line systems can be observed in S. Macrophthalmus .…”

Enhanced flow sensing with interfacial microstructures

“…As shown in Fig. 3d, the constriction microstructure within the lateral-line canal can result in: (i) further attenuation of the response at low frequencies; [27] c Normal stress variation with the position along the cupula surface [11] d Mechanical properties of the lateral-line canals with a length of 5 mm and a diameter of 0.4 mm. The red line with filled circles represents the constricted canal consisting of a wider canal with a length of 3 mm and diameter d 1 = 0.4 mm and a narrower canal with a length of 2 mm and diameter d 2 = 0.24 mm determined using (1)- 4(ii) an upward shift in the cut-off frequency; and (iii) higher sensitivity at higher frequencies [33].…”

“…Hanke et al [10] further discovered that the undulated structure of seal whisker could effectively change the vortex street and suppress the vibration induced by the shedding of vortices from the whiskers, thus improving the flow-sensing performance. Constriction microstructures were discovered in the lateral-line canals of fish to enhance the sensitivity in the detection of pressure disturbance and modify the frequency response of the canal lateral-line system [11]. Though there are many review papers on the different flow reception systems [12][13][14], few literature put an emphasis on the detailed interfacial structures of flow receptors and the underlying sensing-enhancement mechanisms, which might shed light on the potential biomimetic design of flow sensors.…”