ArticleMicrosystems & nanoengineering2021
An ultrafast-response and flexible humidity sensor for human respiration monitoring and noncontact safety warning.
Article in Microsystems & nanoengineering, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
18 citing papers in PubMed.
- Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions.Advanced healthcare materials · 2026Review
- Wafer-Scale Synthesis of Molecularly Engineered 2D Covalent Organic Framework Films for Highly-Sensitive and Rapid-Response Humidity Sensing.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Flexible humidity sensors for diverse applications.Microsystems & nanoengineering · 2025Review
- Progress and Strategies of Wearable Sensors in Human Health Monitoring Based on Physiological, Biochemical, and Environmental Signals.ACS omega · 2025Review
- Direct extraction of respiratory information from pulse waves using a finger-inspired flexible pressure sensor system.Microsystems & nanoengineering · 2025Article
- Recent Advances in Carbon-Based Sensors for Food and Medical Packaging Under Transit: A Focus on Humidity, Temperature, Mechanical, and Multifunctional Sensing Technologies-A Systematic Review.Materials (Basel, Switzerland) · 2025Review
- Ultra-Fast Moisture Sensor for Respiratory Cycle Monitoring and Non-Contact Sensing Applications.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Highly Conductive Ionohydrogels for Humidity Sensing.Polymers · 2025Article
- Cellulose nanocrystal composite films for contactless moisture-electric conversion.RSC advances · 2025Article
- An intelligent humidity sensing system for human behavior recognition.Microsystems & nanoengineering · 2025Article
- SAW Humidity Sensing with rr-P3HT Polymer Films.Sensors (Basel, Switzerland) · 2024Article
- Advances in Fiber-Based Wearable Sensors for Personal Digital Health Monitoring.Materials (Basel, Switzerland) · 2023Review
- Estimating Scalp Moisture in a Hat Using Wearable Sensors.Sensors (Basel, Switzerland) · 2023Article
- One-Step Fabrication of Paper-Based Inkjet-Printed Graphene for Breath Monitor Sensors.Biosensors · 2023Article
- An Overview of Flexible Sensors: Development, Application, and Challenges.Sensors (Basel, Switzerland) · 2023Review
- SnOBiosensors · 2023Article
- Multifunctional Flexible Humidity Sensor Systems Towards Noncontact Wearable Electronics.Nano-micro letters · 2022Article
- Respiratory Monitoring by Ultrafast Humidity Sensors with Nanomaterials: A Review.Sensors (Basel, Switzerland) · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The humidity sensor is an essential sensing node in medical diagnosis and industrial processing control. To date, most of the reported relative humidity sensors have a long response time of several seconds or even hundreds of seconds, which would limit their real application for certain critical areas with fast-varying signals. In this paper, we propose a flexible and low-cost humidity sensor using vertically aligned carbon nanotubes (VACNTs) as electrodes, a PDMS-Parylene C double layer as the flexible substrate, and graphene oxide as the sensing material. The humidity sensor has an ultrafast response of ~20 ms, which is more than two orders faster than most of the previously reported flexible humidity sensors. Moreover, the sensor has a high sensitivity (16.7 pF/% RH), low hysteresis (<0.44%), high repeatability (2.7%), good long-term stability, and outstanding flexibility. Benefiting from these advantages, especially the fast response, the device has been demonstrated in precise human respiration monitoring (fast breathing, normal breathing, deep breathing, asthma, choking, and apnea), noncontact electrical safety warning for bare hand and wet gloves, and noncontact pipe leakage detection. In addition, the facile fabrication of the flexible platform with the PDMS-Parylene C double layer can be easily integrated with multisensing functions such as pH sensing, ammonium ion sensing, and temperature sensing, all of which are useful for more pattern recognition of human activity.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.