Fig. 1: Schematic diagram of the biomimetic optical fiber neuromast (BOFN).
From: From fish to fiber: 3D-nanoprinted optical neuromast for multi-integrated underwater detection

a The Schematic drawings and working principle of the canal neuromast of the fish lateral line. b Illustration of the BOFN sensing external mechanical stimulation signals (UUV uncrewed underwater vehicles). c The working principle of detecting acoustic signals and water flow signals. d Technical comparison between BOFN and published works utilizing Fabry- Pérot cavity, Graphene/Ecoflex Janus film, hydrogel fiber, and micro-electromechanical systems (MEMS) sensor for underwater sensing in terms of sensitivity, versatility, miniaturization, forward response angle, and adjustability.