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Wang M, Zeng Q, Cao J, Chen D, Zhang Y, Liu J, Jia P. Highly Sensitive Gas Sensor for Detection of Air Decomposition Pollutant (CO, NO x): Popular Metal Oxide (ZnO, TiO 2)-Doped MoS 2 Surface. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3674-3684. [PMID: 38198663 DOI: 10.1021/acsami.3c15103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
When partial discharges occur in air-insulated equipment, the air decomposes to produce a variety of contamination products, resulting in a reduction in the insulation performance of the insulated equipment. By monitoring the concentration of typical decomposition products (CO, NO, and NO2) within the insulated equipment, potential insulation faults can be diagnosed. MoS2 has shown promising applications as a gas-sensitive semiconductor material, and doping metal oxides can improve the gas-sensitive properties of the material. Therefore, in this work, MoS2 has been doped using the popular metal oxides (ZnO, TiO2) of the day, and its gas-sensitive properties to the typical decomposition products of air have been analyzed and compared using density functional theory (DFT) calculations. The stability of the doped system was investigated using molecular dynamics methods. The related adsorption mechanism was analyzed by adsorption configuration, energy band structure, density of states (DOS) analysis, total electron density (TED) analysis, and differential charge density (DCD) analysis. Finally, the practical application of related sensing performance is evaluated. The results show that the doping of metal oxide nanoparticles greatly improves the conductivity, gas sensitivity, and adsorption selectivity of MoS2 monolayer to air decomposition products. The sensing response of ZnO-MoS2 for CO at room temperature (25 °C) reaches 161.86 with a good recovery time (0.046 s). TiO2-MoS2 sensing response to NO2 reaches 3.5 × 106 at 25 °C with a good recovery time (0.108 s). This study theoretically solves the industrial challenge of recycling sensing materials and provides theoretical value for the application of resistive chemical sensors in air-insulated equipment.
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Affiliation(s)
- Mingxiang Wang
- School of Electrical Engineering, Guangxi University, Nanning 530004, China
| | - Qingbin Zeng
- School of Electrical Engineering, Guangxi University, Nanning 530004, China
- Data Recovery Key Laboratory of Sichuan Province, Neijiang Normal University, Neijiang 641100, China
| | - Jianjun Cao
- School of Electrical Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Laboratory of intelligent Control and Maintenance of Power Equipment, Guangxi University, Nanning 530004, China
| | - Dachang Chen
- School of Electrical and Electronic Engineering, Wuhan Polytechnic University, Wuhan 430010, China
| | - Yiyi Zhang
- School of Electrical Engineering, Guangxi University, Nanning 530004, China
| | - Jiefeng Liu
- School of Electrical Engineering, Guangxi University, Nanning 530004, China
| | - Pengfei Jia
- School of Electrical Engineering, Guangxi University, Nanning 530004, China
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2
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Cedeño Mata M, Orpella A, Dominguez-Pumar M, Bermejo S. Boosting the Sensitivity and Hysteresis of a Gel Polymer Electrolyte by Embedding SiO 2 Nanoparticles and PVP for Humidity Applications. Gels 2024; 10:50. [PMID: 38247773 PMCID: PMC10815479 DOI: 10.3390/gels10010050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/23/2024] Open
Abstract
Enhancing sensitivity and hysteresis in capacitance humidity sensors is vital for precise, reliable, and consistent humidity control. This study explores this concern by incorporating polyvinylpyrrolidone (PVP) and SiO2 nanoparticles into a polyvinyl alcohol (PVA)-based ionic liquid gel polymer electrolyte (ILGPE), studying two capacitor types: ILGPE and SiO2 composite ILGPE (CILGPE) capacitors. These novel electrolytes use ammonium acetate as a plasticiser, 1-butyl-3-methylimidazolium bromide as an ionic liquid, SiO2 nanoparticles as a composite, and PVA and PVP as host polymers. Capacitors were characterised and modelled using impedance spectroscopy (IS), providing an electrophysical insight into their working principle. Sensitivity and hysteresis were evaluated within a 20-90% relative humidity (RH) range at 25 °C. The SiO2 CILGPE capacitor with PVP presented superior sensitivity and hysteresis, revealing the beneficial combination of SiO2 nanoparticles and PVP. These benefits are due to the creation of pathways that facilitate water molecule diffusion and crystallinity reduction in PVA-ILGPE. In particular, at 10 kHz, it demonstrates a calibrated capacitance sensitivity of 2660 pF/%RH and a hysteresis of 3.28 %RH. This optimised capacitor outperforms some previous humidity capacitive sensors in sensitivity while exhibiting low hysteresis.
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Affiliation(s)
- Michelle Cedeño Mata
- MNT Group, Electronic Engineering Department, Polytechnic University of Catalonia (UPC), C/Jordi Girona 1-3, 08034 Barcelona, Spain
| | | | | | - Sandra Bermejo
- MNT Group, Electronic Engineering Department, Polytechnic University of Catalonia (UPC), C/Jordi Girona 1-3, 08034 Barcelona, Spain
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3
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Guo P, Tian B, Liang J, Yang X, Tang G, Li Q, Liu Q, Zheng K, Chen X, Wu W. An All-Printed, Fast-Response Flexible Humidity Sensor Based on Hexagonal-WO 3 Nanowires for Multifunctional Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304420. [PMID: 37358069 DOI: 10.1002/adma.202304420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Indexed: 06/27/2023]
Abstract
The utilization of printing techniques for the development of high-performance humidity sensors holds immense significance for various applications in the fields of the Internet of Things, agriculture, human healthcare, and storage environments. However, the long response time and low sensitivity of current printed humidity sensors limit their practical applications. Herein, a series of high-sensing-performance flexible resistive-type humidity sensors is fabricated by the screen-printing method, and hexagonal tungsten oxide (h-WO3 ) is employed as the humidity-sensing material due to its low cost, strong chemical adsorption ability, and excellent humidity-sensing ability. The as-prepared printed sensors exhibit high sensitivity, good repeatability, outstanding flexibility, low hysteresis, and fast response (1.5 s) in a wide relative humidity (RH) range (11-95% RH). Furthermore, the sensitivity of humidity sensors can be easily adjusted by altering the manufacturing parameters of the sensing layer and interdigital electrode to meet the diverse requirements of specific applications. The printed flexible humidity sensors possess immense potential in various applications, including wearable devices, non-contact measurements, and packaging opening state monitoring.
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Affiliation(s)
- Panwang Guo
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P. R. China
| | - Bin Tian
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P. R. China
| | - Jing Liang
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
| | - Xiuping Yang
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P. R. China
- Department of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P. R. China
| | - Guilin Tang
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
| | - Quancai Li
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
| | - Qun Liu
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
| | - Ke Zheng
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
| | - Xiong Chen
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P. R. China
- Department of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P. R. China
| | - Wei Wu
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P. R. China
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4
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Yao J, Wang J, Cao W, Li L, Luo M, Wang C. Humidity Sensing Properties of (In+Nb) Doped HfO 2 Ceramics. NANOMATERIALS 2023; 13:nano13050951. [PMID: 36903829 PMCID: PMC10005634 DOI: 10.3390/nano13050951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/01/2023] [Accepted: 03/01/2023] [Indexed: 05/27/2023]
Abstract
(In+Nb) co-doped HfO2 ceramics, Hf1-x(In0.5Nb0.5)xO2 (x = 0, 0.005, 0.05, and 0.1), were prepared via a solid-state reaction method. Dielectric measurements reveal that the environmental moisture has an obvious influence on the dielectric properties of the samples. The best humidity response was found in a sample with the doping level of x = 0.005. This sample was therefore selected as a model sample to further investigate its humidity properties. In doing so, nanosized particles of Hf0.995(In0.5Nb0.5)0.005O2 were fabricated via a hydrothermal method and the humidity sensing properties of this material were studied in the relative humidity range of 11–94% based on impedance sensor. Our results show that the material exhibits a large impedance change of nearly four orders of magnitude over the tested humidity range. It was argued that the humidity-sensing properties were related to the defects created by doping, which improves the adsorption capacity for water molecules.
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5
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Wang L, Huang F, Yao X, Yuan S, Yu X, Tu ST, Chen S. Collaborative Enhancement of Humidity Sensing Performance by KCl-Doped CuO/SnO 2 p-n Heterostructures for Monitoring Human Activities. ACS OMEGA 2023; 8:4878-4888. [PMID: 36777584 PMCID: PMC9909783 DOI: 10.1021/acsomega.2c07098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
In this study, a high-performance humidity sensor based on KCl-doped CuO/SnO2 p-n heterostructures was fabricated by a ball milling-roasting method. The morphology and nanostructure of the fabricated KCl-CuO/SnO2 composite were characterized by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, and nitrogen sorption analysis. The results showed that the humidity sensor had a high sensitivity of 194 kΩ/%RH, short response and recovery times of 1.0 and 1.5 s, a low hysteresis value, and good repeatability. The energy band structure and complex impedance spectrum of the KCl-CuO/SnO2 composite indicated that the excellent humidity sensing performance originated from the ionic conductivity of KCl, the formation of heterojunctions, the change in the Schottky barrier height, and the depletion of electronic depletion layers. The KCl-CuO/SnO2 sensor has great potential in respiratory monitoring, noncontact sensing of finger moisture, and environmental monitoring.
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Affiliation(s)
- Lei Wang
- MOE
Key Laboratory of Pressure Systems and Safety, East China University of Science and Technology, Shanghai 200237, P. R. China
- School
of Mechanical and Power Engineering, East
China University of Science and Technology, Shanghai 200237, P. R. China
| | - Feng Huang
- MOE
Key Laboratory of Pressure Systems and Safety, East China University of Science and Technology, Shanghai 200237, P. R. China
- School
of Mechanical and Power Engineering, East
China University of Science and Technology, Shanghai 200237, P. R. China
| | - Xinqi Yao
- MOE
Key Laboratory of Pressure Systems and Safety, East China University of Science and Technology, Shanghai 200237, P. R. China
- School
of Mechanical and Power Engineering, East
China University of Science and Technology, Shanghai 200237, P. R. China
| | - Shuaishuai Yuan
- MOE
Key Laboratory of Pressure Systems and Safety, East China University of Science and Technology, Shanghai 200237, P. R. China
- School
of Mechanical and Power Engineering, East
China University of Science and Technology, Shanghai 200237, P. R. China
| | - Xinhai Yu
- MOE
Key Laboratory of Pressure Systems and Safety, East China University of Science and Technology, Shanghai 200237, P. R. China
- School
of Mechanical and Power Engineering, East
China University of Science and Technology, Shanghai 200237, P. R. China
| | - Shan-Tung Tu
- MOE
Key Laboratory of Pressure Systems and Safety, East China University of Science and Technology, Shanghai 200237, P. R. China
- School
of Mechanical and Power Engineering, East
China University of Science and Technology, Shanghai 200237, P. R. China
| | - Shijian Chen
- SUFA
Technology Industry Co., Ltd., CNNC, Suzhou 215001, P. R. China
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6
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Velayutham L, Parvathiraja C, Anitha DC, Mahalakshmi K, Jenila M, Alasmary FA, Almalki AS, Iqbal A, Lai WC. Photocatalytic and Antibacterial Activity of CoFe 2O 4 Nanoparticles from Hibiscus rosa-sinensis Plant Extract. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3668. [PMID: 36296858 PMCID: PMC9609893 DOI: 10.3390/nano12203668] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/12/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
Biogenic CoFe2O4 nanoparticles were prepared by co-precipitation and Hibiscus rosa sinensis plant leaf was used as a bio-reductant of the nanoparticle productions. The biosynthesized CoFe2O4 nanoparticles were characterized by XRD, FTIR, UV, VSM, and SEM via EDX analysis. The cubic phase of biosynthesized CoFe2O4 nanoparticles and their crystallite size was determined by XRD. The Co-Fe-O bonding and cation displacement was confirmed by FTIR spectroscopy. The presence of spherically-shaped biosynthesized CoFe2O4 nanoparticles and their material were confirmed by SEM and TEM via EDX. The super-paramagnetic behaviour of the biosynthesized CoFe2O4 nanoparticles and magnetic pulse was established by VSM analysis. Organic and bacterial pollutants were eradicated using the biosynthesized CoFe2O4 nanoparticles. The spinel ferrite biosynthesized CoFe2O4 nanoparticles generate radical and superoxide ions, which degrade toxic organic and bacterial pollutants in the environment.
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Affiliation(s)
- Lakshmi Velayutham
- Department of Physics, St. Xavier’s College (Autonomous), Manonmaniam Sundaranar University, Palayamkottai, Tirunelveli 627002, Tamilnadu, India
| | - C. Parvathiraja
- Department of Physics, Manonmaniam Sundaranar University, Tirunelveli 627012, Tamilnadu, India
| | - Dhivya Christo Anitha
- Department of Physics, St. Xavier’s College (Autonomous), Manonmaniam Sundaranar University, Palayamkottai, Tirunelveli 627002, Tamilnadu, India
| | - K. Mahalakshmi
- Department of Physics, St. Xavier’s College (Autonomous), Manonmaniam Sundaranar University, Palayamkottai, Tirunelveli 627002, Tamilnadu, India
| | - Mary Jenila
- Department of Physics, St. Xavier’s College (Autonomous), Manonmaniam Sundaranar University, Palayamkottai, Tirunelveli 627002, Tamilnadu, India
| | - Fatmah Ali Alasmary
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Amani Salem Almalki
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Amjad Iqbal
- Department of Advanced Materials & Technologies, Faculty of Materials Engineering, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Wen-Cheng Lai
- Bachelor Program in Industrial Projects, National Yunlin University of Science and Technology, Douliu 640301, Taiwan
- Department of Electronic Engineering, National Yunlin University of Science and Technology, Douliu 640301, Taiwan
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7
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Priyadharshini B, Valsalal P. An Improved Humidity Sensor with GO-Mn-Doped ZnO Nanocomposite and Dimensional Orchestration of Comb Electrode for Effective Bulk Manufacturing. NANOMATERIALS 2022; 12:nano12101659. [PMID: 35630881 PMCID: PMC9146707 DOI: 10.3390/nano12101659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/29/2022] [Accepted: 05/11/2022] [Indexed: 12/04/2022]
Abstract
The measurement and control of humidity is a major challenge that affects the sensing properties of sensors used in high-precision equipment manufacturing industries. Graphene Oxide(GO)-based materials have been extensively explored in humidity sensing applications because of their high surface area and functional groups. However, there is a lack of effective bulk-manufacturing processes for the synthesis of 2D-based nanocomposites with comb electrodes. Moreover, water intercalation within the layers of 2D materials increases recovery time. This work demonstrates the enhanced sensing characteristics of a capacitive/resistive GO-MnZnO nanocomposite humidity sensor produced using a cost-effective single-pot synthesis process. The in-plane sensing layer consistently improves sensitivity and reduces response time for a wide range of relative humidity measurements (10% to 90%). Interdigitated gold electrodes with varying numbers of fingers and spacing were fabricated using photolithography on a Si/SiO₂ for a consistent sensor device platform. The choice of nanomaterials, dimension of the sensor, and fabrication method influence the performance of the humidity sensor in a controlled environment. GO nanocomposites show significant improvement in response time (82.67 times greater at 40% RH) and sensitivity (95.7 times more at 60% RH). The response time of 4.5 s and recovery time of 21 s was significantly better for a wider range of relative humidity compared to the reduced GO-sensing layer and ZnMnO. An optimized 6 mm × 3 mm dimension sensor with a 28-fingers comb was fabricated with a metal-etching process. This is one of the most effective methods for bulk manufacturing. The performance of the sensing layer is comparable to established sensing nanomaterials that are currently used in humidity sensors, and hence can be extended for optimal bulk manufacturing with minimum electrochemical treatments.
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8
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Zhang Y, Li B, Jia Y. High Humidity Response of Sol-Gel-Synthesized BiFeO 3 Ferroelectric Film. MATERIALS 2022; 15:ma15082932. [PMID: 35454624 PMCID: PMC9026875 DOI: 10.3390/ma15082932] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/07/2022] [Accepted: 04/13/2022] [Indexed: 02/01/2023]
Abstract
In this work, a BiFeO3 film is prepared via a facile sol–gel method, and the effects of the relative humidity (RH) on the BiFeO3 film in terms of capacitance, impedance and current–voltage (I–V) are explored. The capacitance of the BiFeO3 film increased from 25 to 1410 pF with the increase of RH from 30% to 90%. In particular, the impedance varied by more than two orders of magnitude as RH varied between 30% and 90% at 10 Hz, indicating a good hysteresis and response time. The mechanism underlying humidity sensitivity was analyzed by complex impedance spectroscopy. The adsorption of water molecules played key roles at low and high humidity, extending the potential application of ferroelectric BiFeO3 films in humidity-sensitive devices.
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Affiliation(s)
- Yaming Zhang
- School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710048, China;
| | - Bingbing Li
- School of Communication and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710048, China;
| | - Yanmin Jia
- School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710048, China;
- Correspondence: ; Tel.: +86-8816-6335
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9
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Liu Y, Li H, Feng Q, Su H, Li D, Shang Y, Chen H, Li B, Dong H. A Three-Dimensional-Printed Recyclable, Flexible, and Wearable Device for Visualized UV, Temperature, and Sweat pH Sensing. ACS OMEGA 2022; 7:9834-9845. [PMID: 35350374 PMCID: PMC8945124 DOI: 10.1021/acsomega.2c00128] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 02/21/2022] [Indexed: 05/08/2023]
Abstract
Wearable devices are now recognized as a powerful tool to collect physiological and environmental information in a smart, noninvasive, and real-time manner. Despite the rapid progress of wearable devices especially wearable electronic devices, there are still several challenges that limit their further development, for example, a complicated electrical signal acquisition and processing process to eliminate the interference from the surrounding signals, bulky power supply, inevitable e-waste, and environmental pollution. Herein, we report a 3D-printed recyclable, flexible, and wearable device for visualized UV, temperature, and sweat pH sensing. Compared with wearable electronic devices, our visualized wearable device senses environmental (UV light, ambient temperature), biophysical (skin temperature), and biochemical (sweat pH) signals via stimuli-responsive color change, which does not require complicated electronic circuit design/assembly, time-consuming data processing and additional power source. In addition, this visualized wearable device is fabricated via a 3D support bath printing technology by printing UV-, temperature-, and sweat pH-sensing inks containing photochromic, thermochromic, and pH-chromic materials, respectively, into/onto sustainable starch solution, resulting in a multi-functional, recyclable, and flexible sensing device with high reproducibility. Our results reveal that UV light intensities under sunlight (0-2500 μW/cm2), ambient, and skin temperatures (0-38 °C) as well as sweat pH (4.0-7.0) can be successfully monitored.
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Affiliation(s)
- Yang Liu
- Department
of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China
- National
Engineering Research Center for Tissue Restoration and Reconstruction
(NERC-TRR), Guangzhou 510006, China
| | - Haofei Li
- Department
of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China
- Key
Laboratory of Biomedical Materials and Engineering of the Ministry
of Education, South China University of
Technology, Guangzhou 510006, China
| | - Qi Feng
- Department
of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China
- Guangdong
Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Hongxian Su
- Department
of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China
- National
Engineering Research Center for Tissue Restoration and Reconstruction
(NERC-TRR), Guangzhou 510006, China
| | - Dingguo Li
- Department
of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China
- National
Engineering Research Center for Tissue Restoration and Reconstruction
(NERC-TRR), Guangzhou 510006, China
| | - Yulian Shang
- Department
of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China
- Key
Laboratory of Biomedical Materials and Engineering of the Ministry
of Education, South China University of
Technology, Guangzhou 510006, China
| | - Hongjie Chen
- Department
of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China
- National
Engineering Research Center for Tissue Restoration and Reconstruction
(NERC-TRR), Guangzhou 510006, China
| | - Bingrui Li
- Department
of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China
- Key
Laboratory of Biomedical Materials and Engineering of the Ministry
of Education, South China University of
Technology, Guangzhou 510006, China
| | - Hua Dong
- Department
of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China
- National
Engineering Research Center for Tissue Restoration and Reconstruction
(NERC-TRR), Guangzhou 510006, China
- Key
Laboratory of Biomedical Materials and Engineering of the Ministry
of Education, South China University of
Technology, Guangzhou 510006, China
- Guangdong
Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510641, China
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10
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Pereira N, Rezende N, Cunha THR, Barboza APM, Silva GG, Lippross D, Neves BRA, Chacham H, Ferlauto AS, Lacerda RG. Aerosol-Printed MoS 2 Ink as a High Sensitivity Humidity Sensor. ACS OMEGA 2022; 7:9388-9396. [PMID: 35356695 PMCID: PMC8945157 DOI: 10.1021/acsomega.1c06525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 03/01/2022] [Indexed: 05/13/2023]
Abstract
Molybdenum disulfide (MoS2) is attractive for use in next-generation nanoelectronic devices and exhibits great potential for humidity sensing applications. Herein, MoS2 ink was successfully prepared via a simple exfoliation method by sonication. The structural and surface morphology of a deposited ink film was analyzed by scanning electron microscopy (SEM), Raman spectroscopy, and atomic force microscopy (AFM). The aerosol-printed MoS2 ink sensor has high sensitivity, with a conductivity increase by 6 orders of magnitude upon relative humidity increase from 10 to 95% at room temperature. The sensor also has fast response/recovery times and excellent repeatability. Possible mechanisms for the water-induced conductivity increase are discussed. An analytical model that encompasses two ionic conduction regimes, with a percolation transition to an insulating state below a low humidity threshold, describes the sensor response successfully. In conclusion, our work provides a low-cost and straightforward strategy for fabricating a high-performance humidity sensor and fundamental insights into the sensing mechanism.
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Affiliation(s)
- Neuma
M. Pereira
- Departamento
de Física, Universidade Federal de
Minas Gerais, Belo Horizonte, Minas Gerais 31270-90, Brazil
- Departamento
de Química, Universidade Federal
de Minas Gerais, Belo Horizonte, Minas Gerais 31270-90, Brazil
- Centro
de Tecnologia em Nanomateriais e Grafeno/UFMG, Universidade Federal de Minas Gerais, BHtec, Belo Horizonte, Minas Gerais 31310-260, Brazil
| | - Natália
P. Rezende
- Departamento
de Física, Universidade Federal de
Minas Gerais, Belo Horizonte, Minas Gerais 31270-90, Brazil
- Centro
de Tecnologia em Nanomateriais e Grafeno/UFMG, Universidade Federal de Minas Gerais, BHtec, Belo Horizonte, Minas Gerais 31310-260, Brazil
| | - Thiago H. R. Cunha
- Departamento
de Física, Universidade Federal de
Minas Gerais, Belo Horizonte, Minas Gerais 31270-90, Brazil
- Centro
de Tecnologia em Nanomateriais e Grafeno/UFMG, Universidade Federal de Minas Gerais, BHtec, Belo Horizonte, Minas Gerais 31310-260, Brazil
| | - Ana P. M. Barboza
- Departamento
de Física, Universidade Federal de
Ouro Preto, Ouro Preto, Minas Gerais 35400-000, Brazil
| | - Glaura G. Silva
- Departamento
de Química, Universidade Federal
de Minas Gerais, Belo Horizonte, Minas Gerais 31270-90, Brazil
- Centro
de Tecnologia em Nanomateriais e Grafeno/UFMG, Universidade Federal de Minas Gerais, BHtec, Belo Horizonte, Minas Gerais 31310-260, Brazil
| | - Daniel Lippross
- Departamento
de Química, Universidade Federal
de Minas Gerais, Belo Horizonte, Minas Gerais 31270-90, Brazil
| | - Bernardo R. A. Neves
- Departamento
de Física, Universidade Federal de
Minas Gerais, Belo Horizonte, Minas Gerais 31270-90, Brazil
| | - Hélio Chacham
- Departamento
de Física, Universidade Federal de
Minas Gerais, Belo Horizonte, Minas Gerais 31270-90, Brazil
| | - Andre S. Ferlauto
- Centro
de Tecnologia em Nanomateriais e Grafeno/UFMG, Universidade Federal de Minas Gerais, BHtec, Belo Horizonte, Minas Gerais 31310-260, Brazil
- Centro
de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC, Santo André, São
Paulo 09210-580, Brazil
| | - Rodrigo G. Lacerda
- Departamento
de Física, Universidade Federal de
Minas Gerais, Belo Horizonte, Minas Gerais 31270-90, Brazil
- Centro
de Tecnologia em Nanomateriais e Grafeno/UFMG, Universidade Federal de Minas Gerais, BHtec, Belo Horizonte, Minas Gerais 31310-260, Brazil
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11
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Preparation and Research of a High-Performance ZnO/SnO 2 Humidity Sensor. SENSORS 2021; 22:s22010293. [PMID: 35009835 PMCID: PMC8749818 DOI: 10.3390/s22010293] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/25/2021] [Accepted: 12/29/2021] [Indexed: 11/17/2022]
Abstract
A high-performance zinc oxide/tin dioxide (ZnO/SnO2) humidity sensor was developed using a simple solvothermal method. The sensing mechanism of the ZnO/SnO2 humidity sensor was evaluated by analyzing its complex impedance spectra. The experimental results prove that the ZnO/SnO2 composite material has a larger specific surface area than pure SnO2, which allows the composite material surface to adsorb more water to enhance the response of the ZnO/SnO2 humidity sensor. ZnO can also contribute to the generation of oxygen-rich vacancies on the ZnO/SnO2 composite material surface, allowing it to adsorb a large amount of water and rapidly decompose water molecules into conductive ions to increase the response and recovery speed of the ZnO/SnO2 humidity sensor. These characteristics allowed the Z/S-2 humidity sensor to achieve a higher response (1,225,361%), better linearity, smaller hysteresis (6.6%), faster response and recovery speeds (35 and 8 s, respectively), and long-term stability at 11–95% relative humidity. The successful preparation of the ZnO/SnO2 composite material also provides a new direction for the design of SnO2-based resistance sensors with high humidity-sensing performance.
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12
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Kushwaha P, Chauhan P. Facile green synthesis of CoFe 2O 4 nanoparticles using hibiscus extract and their application in humidity sensing properties. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1992432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Pratima Chauhan
- Department of Physics, University of Allahabad, Prayagraj, India
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13
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Yu Z, Gong H, Li Y, Xu J, Zhang J, Zeng Y, Liu X, Tang D. Chemiluminescence-Derived Self-Powered Photoelectrochemical Immunoassay for Detecting a Low-Abundance Disease-Related Protein. Anal Chem 2021; 93:13389-13397. [PMID: 34554727 DOI: 10.1021/acs.analchem.1c03344] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Early diagnosis of cancers relies on the sensitive detection of specific biomarkers, but most of the current testing methods are inaccessible to home healthcare due to cumbersome steps, prolonged testing time, and utilization of toxic and hazardous substances. Herein, we developed a portable self-powered photoelectrochemical (PEC) sensing platform for rapid detection of prostate-specific antigen (PSA, as a model disease-related protein) by integrating a self-powered photoelectric signal output system catalyzed with chemiluminescence-functionalized Au nanoparticles (AuNPs) and a phosphomolybdic acid (PMA)-based photochromic visualization platform. TiO2-g-C3N4-PMA photosensitive materials were first synthesized and functionalized on a sensor chip. The sensor consisted of filter paper modified with a photocatalytic material and a regional laser-etched FTO electrode as an alternative to a conventional PEC sensor with a glass-based electrode. The targeting system involved a monoclonal anti-PSA capture antibody-functionalized Fe3O4 magnetic bead (mAb1-MB) and a polyclonal anti-PSA antibody (pAb2)-N-(4-aminobutyl)-N-ethylisoluminol-AuNP (ABEI-AuNP). Based on the signal intensity of the chemiluminescent system, the photochromic device color changed from light yellow to heteropoly blue through the PMA photoelectric materials integrated into the electrode for visualization of the signal output. In addition, the electrical signal in the PEC system was amplified by a sandwich-type capacitor and readout on a handheld digital multimeter. Under optimum conditions, the sensor exhibited high sensitivity relative to PSA in the range of 0.01-50 ng mL-1 with a low detection limit of 6.25 pg mL-1. The flow-through chemiluminescence reactor with a semiautomatic injection device and magnetic separation was avoid of unstable light source intensity inherent in the chemiluminescence process. Therefore, our strategy provides a new horizon for point-of-care analysis and rapid cost-effective clinical diagnosis.
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Affiliation(s)
- Zhichao Yu
- Key Laboratory of Analytical Science for Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Hexiang Gong
- Key Laboratory of Analytical Science for Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Yuxuan Li
- Key Laboratory of Analytical Science for Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Jianhui Xu
- Key Laboratory of Analytical Science for Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Jin Zhang
- Chongqing Vocational Institute of Engineering, Chongqing 402260, People's Republic of China
| | - Yongyi Zeng
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, People's Republic of China
| | - Xiaolong Liu
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, People's Republic of China
| | - Dianping Tang
- Key Laboratory of Analytical Science for Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China.,Chongqing Vocational Institute of Engineering, Chongqing 402260, People's Republic of China
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14
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Wang L, Wen J, Wu Y, Gao J. Graphene Oxide/Carbon Nanocoil Composite for High‐performance Humidity Sensor. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Luyu Wang
- Institute of Functional Porous Materials School of Materials Science and Engineering Zhejiang Sci‐Tech University 310018 Hangzhou P. R. China
| | - Jinguli Wen
- Institute of Functional Porous Materials School of Materials Science and Engineering Zhejiang Sci‐Tech University 310018 Hangzhou P. R. China
| | - Yuhang Wu
- Institute of Functional Porous Materials School of Materials Science and Engineering Zhejiang Sci‐Tech University 310018 Hangzhou P. R. China
| | - Junkuo Gao
- Institute of Functional Porous Materials School of Materials Science and Engineering Zhejiang Sci‐Tech University 310018 Hangzhou P. R. China
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