Abstract
In this study, a pairing of a previously unidentified 3D printing technique and soft materials is introduced in order to achieve not only high‐resolution printed features and flexibility of the 3D‐printed materials, but also its light‐weight and electrical conductivity. Using the developed technique and materials, high‐precision and highly sensitive patient‐specific wearable active or passive devices are fabricated for personalized health monitoring. The fabricated biosensors show low density and substantial flexibility because of 3D microcellular network‐type interconnected conductive materials that are readily printed using an inkjet head. Using high‐resolution 3D scanned body‐shape data, on‐demand personalized wearable sensors made of the 3D‐printed soft and conductive materials are fabricated. These sensors successfully detect both actively changing body strain signals and passively changing signals such as electromyography (EMG), electrodermal activity (EDA), and electroencephalogram EEG. The accurately tailored subject‐specific shape of the developed sensors exhibits higher sensitivity and faster real‐time sensing performances in the monitoring of rapidly changing human body signals. The newly developed 3D printing technique and materials can be widely applied to various types of wearable, flexible, and light‐weight biosensors for use in a variety of inexpensive on‐demand and personalized point‐of‐care diagnostics.
Highlights
In this study, a pairing of a previously unidentified 3D printing technique cost-effectiveness, portability, high resolution for printed features, and usability of and soft materials is introduced in order to achieve high-resolution a wide range of printable materials[4]
The newly developed 3D-printing technique and materials have wide applicability to various types of wearable, flexible, and lightweight biosensors targeted for use in a variety of inexpensive on-demand and personalized pointof-care diagnostics
When the subject was in the sleep phase, the wavelet peak gradually shifted to a high frequency. From these experimental examinations of the 3D-printed patch-based biosensors used to detect various types of signals (EMG, electrodermal activity (EDA), and EEG), we can conclude that the fabricated sensors serve as reliable, general-purpose, individual-specific wearable, and highly sensitive passive biosensors
Summary
A pairing of a previously unidentified 3D printing technique cost-effectiveness, portability, high resolution for printed features, and usability of and soft materials is introduced in order to achieve high-resolution a wide range of printable materials[4] The EMG sensors coupled with both electrodes successfully detected the state changes in the muscle movements, the 3D-printed conductive patch-based sensors showed notably higher sensitivity than the Ag/AgCl electrodes (Figure S9, Supporting Information).
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