Bioinspired Kirigami Fish‐Based Highly Stretched Wearable Biosensor for Human Biochemical–Physiological Hybrid Monitoring

Abstract

The human quest for beauty is manifested in numerous body decoration fashions such as makeups, tattoos, and stickers. The ancient “kirigami” art offers a variety of choices for sticker‐type body beautification, whereby with simple cutting, complex networks potential use as microfluidic channels and stretchable materials can be fabricated. Inspired by the fish‐scale pattern and kirigami art, a fish‐like wearable biosensor is designed and fabricated. This highly stretchable, well‐aerated, disposable, and wearable fish sticker enables sweat collection, diagnostics, and motion monitoring. A structure of photonic crystals is integrated in the paper channels for fluorescence enhancement sensing of sweat lactic acid and urea, and a stretchable electronic paper network induced sensitive resistance changes during the movement. The sensor is amenable to a variety of applications, such as personal care and human–machine interaction. The combination of art and sensing also provides a pleasant‐looking solution for both health and beauty.

Developable Rotationally Symmetric Kirigami‐Based Structures as Sensor Platforms

“…[16][17][18][19][20][21] However, the sensing is based on stretching of the fibers, typically unidirectional and poorly suited for integration with substantially rigid electronic components that do not tolerate well to repeated mechanical deformation. [28][29][30][31] While technologies to generate patterns and functional coatings in two dimensions are now highly evolved, the structures examined here are easily generated at the application-appropriate length scales using a laser or die cutter. Instead, an approach is needed where the device is flexible and curved, conforming to the body surface in use, yet is also flat and nonstretchable during fabrication to be compatible with dominant, scalable manufacturing and integration processes for electronics.…”

“…[22][23][24][25] The addition of cutting allows for greater control over the geometric design and system behavior. [28][29][30][31] While technologies to generate patterns and functional coatings in two dimensions are now highly evolved, the structures examined here are easily generated at the application-appropriate length scales using a laser or die cutter. [28][29][30][31] While technologies to generate patterns and functional coatings in two dimensions are now highly evolved, the structures examined here are easily generated at the application-appropriate length scales using a laser or die cutter.…”

Printed Organic Transistor-based Biosensors for Non-invasive Sweat Analysis

“…Such devices adopt both amperometric and potentiometric measurement systems-for lactate and glucose detection and for electrolyte detection, respectively. Since then, development of various types of totally integrated wearable sweat sensors have progressed to take the form of tattoo films, [86][87][88][89][90] wrist bands, [91][92][93] eye glasses, 94 head bands, 95 underwear, [96][97][98] and socks. 99 Although these sensors can detect analytes in sweat when the sensing elements are exposed to sweat, the detected sweat components are left in the same area and their concentration might increase as more sweat is secreted.…”

Self‐Assembly of Colloidal Particles for Fabrication of Structural Color Materials toward Advanced Intelligent Systems

“…This can be a huge boost for the easy diagnosis of neurodegenerative disease . Moreover, as shown in Figure c, further studies through integrating the photonic colloidal crystal in the paper channels have as well been developed with a fish‐like biosensor to realize the sweat collection, diagnostics, and fluorescence enhancement detection for sweat lactic acid and urea …”

“…c) The paper fish sensor fabrication process. Reproduced with permission . Copyright 2018, WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim.…”