A hybrid thread-based temperature and humidity sensor for continuous wound monitoring

An Antisweat Interference and Highly Sensitive Temperature Sensor Based on Poly(3,4-ethylenedioxythiophene)–Poly(styrenesulfonate) Fiber Coated with Polyurethane/Graphene for Real-Time Monitoring of Body Temperature

“…Flexible temperature sensors have gained significant attention since the introduction of flexible wearable technology because of their flexibility and good interface compatibility . However, most of the present flexible temperature sensors are constructed on impermeable film substrates such as PDMS and PET, , which can lead to sweat accumulation on the human skin when attached for an extended period and may even cause skin inflammation in extreme cases. , Due to the flexibility, breathability, wearability, and good compatibility with textiles, fiber-based temperature-sensors can detect fever, wound healing, and cardiovascular disease in real-time, , which is useful for those who are incapable of speaking or feeling for themselves such as infants, deaf patients, and elderly patients who have Alzheimer’s disease …”

Polymer-Thread-Based Fully Textile Capacitive Sensor Embroidered on a Protective Face Mask for Humidity Detection

“…To create the interdigitated textile electrodes on the face mask, silver-plated polyamide thread was chosen to be stitched as an interdigitated pattern directly on the face mask, whereas two different types of polyester threads were embroidered and incorporated as hygroscopic sensing material between them. While there are a few reports on thread-based sensing applications for human perspiration and temperature, humidity sensors are rarely reported . Recently, the fabrication of a copper wire and a sensitive yarn-based capacitive humidity sensor fabricated by a mechanical wrapping machine has been reported .…”

“…Recently, the fabrication of a copper wire and a sensitive yarn-based capacitive humidity sensor fabricated by a mechanical wrapping machine has been reported . Moreover, cotton threads have been used for humidity monitoring; however, the fabrication technology was based on the roll to roll method to coat the threads with carbon nanotube (CNT) ink . Linen and cotton-based textile materials are reportedly used for humidity sensing coated with a metal–organic framework (MOF) .…”

“… 8 Moreover, cotton threads have been used for humidity monitoring; however, the fabrication technology was based on the roll to roll method to coat the threads with carbon nanotube (CNT) ink. 31 Linen and cotton-based textile materials are reportedly used for humidity sensing coated with a metal–organic framework (MOF). 11 Threads used in the present work involved a facile method of sensor fabrication without any need for its functionalization with nanomaterials, thus avoiding the possible loss of nanomaterials under high humidity conditions and preventing the potential errors in generating signal consistency and sensor performance towards humidity sensing.…”

Printed Wireless Sensing Devices using Radio Frequency Communication

“…For monitoring the healing process of a wound, finding the moisture or the humidity can help to analyze a wound’s healing state . There are several studies on wireless humidity sensor tags that can be used inside the patch or band-aids to find the relative humidity of the injured area wirelessly. ,, Printed humidity RF sensors are a proper candidate for wound monitoring because of their advantages in previous applications. For instance, Salmerón et al reported a wireless, chipless LC sensor for humidity sensing.…”