Journal article
In Situ Functionalized MXene on Porous Laser-Induced Graphene for Adsorption-Dominated Miniaturized Multifunctional Sensors
ACS nano, v 19(38), pp 33841-33856
16 Sep 2025
PMID: 40955773
Abstract
Despite the rapid advancement of multifunctional wearable sensors for health monitoring, they often suffer from significantly reduced sensitivity and stability when they are reduced in size for miniaturization. This study explores a two-step direct laser writing process to introduce in situ functionalized MXene with reduced surface terminating groups on highly porous laser-induced graphene foam, shifting the electrochemical reaction from the traditionally diffusion-controlled to the new adsorption-controlled. The resulting highly stable nanocomposite also addresses the oxidation issues of MXene. As a result, the electrochemical sensor exhibits enhanced sensitivity from 242.78 to 2751.3 μA/mM·cm2 to glucose, as the electrode radius is reduced from 2.5 to 0.5 mm. The sensor also exhibits a low limit of detection of 0.3 μM, a rapid response time of 0.1 s, and excellent stability over 35 days in ambient conditions. The nanocomposite can also be explored in a humidity sensor with high sensitivity and rapid response/recovery time, along with the dry electrophysiological electrodes with increased amplitude and signal-to-noise ratio, even in the presence of sweat. The miniaturized size of the sensors further allows seamless integration of multiple sensing modalities with a virtual reality mask to monitor physical and mental conditions for the identification and evaluation of phobias.
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Details
- Title
- In Situ Functionalized MXene on Porous Laser-Induced Graphene for Adsorption-Dominated Miniaturized Multifunctional Sensors
- Creators
- Abu Musa Abdullah - Drexel University, Mechanical Engineering and MechanicsMd Abu Sayeed Biswas - Pennsylvania State UniversityAnkan Dutta - Pennsylvania State UniversityJiaoli Li - Mitchell InstituteShuvendu Das - Pennsylvania State UniversityXianzhe Zhang - Pennsylvania State UniversityWanqing Zhang - Pennsylvania State UniversityFatema Tuz Zohra - Pennsylvania State UniversityArantza Moreno Calva - Universidad IberoamericanaJennifer Lynn Gray - Pennsylvania State UniversityHoutan Jabelli - University of Illinois Urbana-ChampaignChenglin Wu - Mitchell InstituteHuanyu Cheng - Pennsylvania State University
- Publication Details
- ACS nano, v 19(38), pp 33841-33856
- Publisher
- American Chemical Society
- Number of pages
- 16
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:001572334000001
- Scopus ID
- 2-s2.0-105017372246
- Other Identifier
- 991022098432004721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology