Double-Sided Wearable Multifunctional Sensing System with Anti-interference Design for Human–Ambience Interface

Abstract

Multifunctional sensing systems play important roles in a variety of applications, incluing health surveillance, intelligent prothetics, human–machine/ambinece interfaces, and many others. The richness of the signal and the decoupling among multiple parameters are essential for simultaneous, multimodal measurements. However, current multifunctional sensing fails to decouple interferences from various signals. Here, we propose a double-sided wearable system that both enables multifunctional sensing and avoids the interferences among multiple parameters. Specifically, the sensitivities of system modules to strain are controlled through customizing the pattern and morphology of sensing electrodes as well as the modification of active materials. Compensation of temperature drift and selection of sensing mechanisms ensure the thermal stability of the system. The encapsulation of modules resists the interferences of proximity, normal pressure, and gas molecules at the same time. A double-sided partition layout with serpentine interconnections reduces the effect of motion artifacts and ensures simultaneous operation of electrochemical-sensing modules. Cooperation among decoupled modules acts as the bridge between the perception of ambience changes and the timely feedback of the human body. In addition, to sense the signal at the interface, modules for energy harvesting and storage are also integrated into the system to broaden its application scenarios.

Printable Graphene-Sustainable Elastomer-Based Cross Talk Free Sensor for Point of Care Diagnostics

“…The strong coherence noted between Figure c,d indicated the appropriateness of the adopted data processing methodology. Such a method of data processing is well-reported in the literature …”

“…Such a method of data processing is well-reported in the literature. 33 Physiological Demonstration of the Applicability of the Sensor. Hitherto, it can be noted that the developed ENRG 0.86 printed sensors demonstrated sensing capabilities against various external stimuli.…”

“…Based on the available literature, developing such sensors demonstrating no crosstalk involves multi-step fabrication . There have been a few attempts to prevent the crosstalks between the sensors with exciting results; however, the reported sensors’ fabrication involved multistep fabrication processes . Thus, it can be unequivocally suggested that there is a strong need to develop a crosstalk free printable sensor for determining various physiological parameters in a simpler technique.…”

Review on III–V Semiconductor Nanowire Array Infrared Photodetectors

“…Flexible optoelectronic devices have attracted great interest due to their promise for wearable electronics and other versatile applications. [137][138][139] To obtain vertical nanowire-based flexible devices, a typical method is utilizing a robust peel-off technique to transfer vertically aligned nanowire arrays onto a lightweight and flexible plastic substrate such as poly(ethylene terephthalate) (PET) or a metal foil. [136,137,[140][141][142] Due to their nanoscale size and crystal facets, it is relatively easy to infiltrate the nanowire array with polymers such as polydimethylsiloxane (PDMS), BCB, or PMMA and then peel them off from the substrate, for example, using a razor blade.…”

Laser-Induced Graphene Capacitive Killing of Bacteria

“…Graphene is a two-dimensional (2D) hexagonal lattice of sp 2 carbon atoms that are covalently bonded within two planar directions . In addition to its high thermal and electrical conductivity, flexibility, and mechanical strength, graphene has an exceptionally high surface area (e.g., ∼2600 m 2 /g) and intrinsic theoretical capacitance (21 μF/cm 2 ). − These properties perfectly poise this carbonaceous nanomaterial to be used within a broad array of applications ranging from electronics − (e.g., supercapacitors) and biotechnology to environmental technology − (e.g., renewable construction materials). − Within the spectra of environmental technology, examples of graphene derivatives have been shown to be antibacterial by many researchers over the years . The potency of graphene-based materials is especially true in the presence of an applied voltage as exemplified by laser-induced graphene (LIG). , However, the exact mechanism for the antibacterial activity such as the physical destruction of the cell membrane via direct contact of the bacteria with the surface structure/texture chemical microbial toxicity such as oxidative stress, or electrical effects of LIG or other graphene-based materials remains ambiguous and can be attributed to any combination of the various mechanisms.…”