ArticleSmall (Weinheim an der Bergstrasse, Germany)2025
In-Situ Vertical-Contact Engineering of Laser-Induced Graphene Nanotips for Ultra-Sensitive Humidity Sensors.
Article in Small (Weinheim an der Bergstrasse, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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.
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Who cites it
2 citing papers in PubMed.
- Recent Advances in Laser-Induced Graphene-Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- In-Situ Vertical-Contact Engineering of Laser-Induced Graphene Nanotips for Ultra-Sensitive Humidity Sensors.Small (Weinheim an der Bergstrasse, Germany) · 2025Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
Advancements in laser-induced graphene (LIG) technology enables the streamlined fabrication of 3D porous graphene-based humidity sensors. However, conventional LIG-based humidity sensors employing lateral-contact configurations often exhibit limited responsivity, owing to their partially exposed structures and dominant subsurface current pathways. This study presents a novel vertical-contact architecture that utilizes vertically aligned LIG nanotips for ultra-sensitive humidity detection. Single-pulse laser irradiation induces localized growth of the LIG nanotips, simultaneously forming in-situ vertical contacts with both the top and bottom graphene electrodes. This fully exposed structure provides a highly efficient sensing interface. By adjusting the air-gap height between the electrodes, the sensor operates in two distinct modes: Contact Mode, which achieves high responsivity (40%) via resistance modulation by water adsorption, and Remote Mode, which leverages field ionization to achieve exceptional responsivity (14 000%). The sensors demonstrate rapid response and recovery times (<1 s), excellent stability, and high gas selectivity. Integration into wearable face masks enables real-time respiratory monitoring, including hyperventilation and high-frequency breathing (up to 156 bpm), without signal degradation. This study presents a simple and scalable strategy for fabricating high-performance humidity sensors for next-generation wearable healthcare applications.
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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.