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Schlicke H, Maletz R, Dornack C, Fery A. Plasmonic Particle Integration into Near-Infrared Photodetectors and Photoactivated Gas Sensors: Toward Sustainable Next-Generation Ubiquitous Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403502. [PMID: 39291897 DOI: 10.1002/smll.202403502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 08/09/2024] [Indexed: 09/19/2024]
Abstract
Current challenges in environmental science, medicine, food chemistry as well as the emerging use of artificial intelligence for solving problems in these fields require distributed, local sensing. Such ubiquitous sensing requires components with 1) high sensitivity, 2) power efficiency, 3) miniaturizability, and 4) the ability to directly interface with electronic circuitry, i.e., electronic readout of sensing signals. Over the recent years, several nanoparticle-based approaches have found their way into this field and have demonstrated high performance. However, challenges remain, such as the toxicity of many of today's narrow bandgap semiconductors for NIR detection and the high energy consumption as well as low selectivity of state-of-the-art commercialized gas sensors. With their unique light-matter interaction and ink-based fabrication schemes, plasmonic nanostructures provide potential technological solutions to these challenges, leading also to better environmental performance. In this perspective recent approaches of using plasmonic nanoparticles are discussed for the fabrication of NIR photodetectors and light-activated, energy-efficient gas sensing devices. In addition, new strategies implying computational approaches are pointed out for miniaturizable spectrometers, exploiting the wide spectral tunability of plasmonic nanocomposites, and for selective gas sensors, utilizing dynamic light activation. The benefits of colloidal approaches for device fabrication are discussed with regard to technological advantages and environmental aspects, which are barely considered so far.
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Affiliation(s)
- Hendrik Schlicke
- Leibniz Institute for Polymer Research Dresden, Hohe Straße 6, 01069, Dresden, Germany
| | - Roman Maletz
- Faculty of Environmental Sciences, Institute of Waste Management and Circular Economy, TUD Dresden University of Technology, Pratzschwitzer Straße 15, 01796, Pirna, Germany
| | - Christina Dornack
- Faculty of Environmental Sciences, Institute of Waste Management and Circular Economy, TUD Dresden University of Technology, Pratzschwitzer Straße 15, 01796, Pirna, Germany
| | - Andreas Fery
- Leibniz Institute for Polymer Research Dresden, Hohe Straße 6, 01069, Dresden, Germany
- Physical Chemistry of Polymeric Materials, TUD Dresden University of Technology, Bergstraße 66, 01069, Dresden, Germany
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Zhang Y, Liu Y, Lu Y, Gong S, Haick H, Cheng W, Wang Y. Tailor-Made Gold Nanomaterials for Applications in Soft Bioelectronics and Optoelectronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2405046. [PMID: 39022844 DOI: 10.1002/adma.202405046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/02/2024] [Indexed: 07/20/2024]
Abstract
In modern nanoscience and nanotechnology, gold nanomaterials are indispensable building blocks that have demonstrated a plethora of applications in catalysis, biology, bioelectronics, and optoelectronics. Gold nanomaterials possess many appealing material properties, such as facile control over their size/shape and surface functionality, intrinsic chemical inertness yet with high biocompatibility, adjustable localized surface plasmon resonances, tunable conductivity, wide electrochemical window, etc. Such material attributes have been recently utilized for designing and fabricating soft bioelectronics and optoelectronics. This motivates to give a comprehensive overview of this burgeoning field. The discussion of representative tailor-made gold nanomaterials, including gold nanocrystals, ultrathin gold nanowires, vertically aligned gold nanowires, hard template-assisted gold nanowires/gold nanotubes, bimetallic/trimetallic gold nanowires, gold nanomeshes, and gold nanosheets, is begun. This is followed by the description of various fabrication methodologies for state-of-the-art applications such as strain sensors, pressure sensors, electrochemical sensors, electrophysiological devices, energy-storage devices, energy-harvesting devices, optoelectronics, and others. Finally, the remaining challenges and opportunities are discussed.
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Affiliation(s)
- Yujie Zhang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yi Liu
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yuerui Lu
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT, 2601, Australia
| | - Shu Gong
- School of Materials Science and Engineering, Central South University, Changsha, 410083, P. R. China
| | - Hossam Haick
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Wenlong Cheng
- School of Biomedical Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Yan Wang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- Key Laboratory of Science and Engineering for Health and Medicine of Guangdong Higher Education Institutes, Guangdong Technion - Israel Institute of Technology, Shantou, Guangdong, 515063, China
- Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
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3
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Abideen ZU, Arifeen WU, Tricoli A. Advances in flame synthesis of nano-scale architectures for chemical, biomolecular, plasmonic, and light sensing. NANOSCALE 2024; 16:7752-7785. [PMID: 38563193 DOI: 10.1039/d4nr00321g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Flame spray pyrolysis (FSP), a key technique under the broader category of flame aerosol synthesis, is being increasingly explored for the design of advanced miniaturized sensor architectures with applications including chemical, biomolecular, plasmonic, and light sensing. This review provides an overview of the advantages of FSP for the fabrication of nanostructured materials for sensing, delving into synthesis strategies and material structures that meet the increasing demands for miniaturized sensor devices. We focus on the fundamentals of FSP, discussing reactor configurations and how process parameters such as precursor compositions, flow rates, and temperature influence nanoparticle characteristics and their sensing performance. A detailed analysis of nanostructures, compositions, and morphologies made by FSP and their applications in chemical, chemiresistive, plasmonic, biosensing, and light sensing is presented. This review identifies the challenges and opportunities of FSP, exploring current limitations and potential improvements for industrial translation. We conclude by highlighting future research directions aiming to establish guidelines for the flame-based design of nano-scale sensing architectures.
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Affiliation(s)
- Zain Ul Abideen
- Nanotechnology Research Laboratory, Research School of Chemistry, College of Science, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Waqas Ul Arifeen
- School of Mechanical Engineering, Yeungnam University, Daehak-ro, Gyeongsan-si, Gyeongbuk-do, 38541, South Korea
| | - Antonio Tricoli
- Nanotechnology Research Laboratory, Research School of Chemistry, College of Science, Australian National University, Canberra, Australian Capital Territory 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, Sydney, New South Wales 2006, Australia.
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4
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Peng H, Liu Y, Shen Y, Xu L, Lu J, Li M, Lu HL, Gao L. Highly Sensitive and Selective Toluene Gas Sensors Based on ZnO Nanoflowers Decorated with Bimetallic AuPt. Molecules 2024; 29:1657. [PMID: 38611936 PMCID: PMC11013457 DOI: 10.3390/molecules29071657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 03/30/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Efficient sensors for toluene detecting are urgently needed to meet people's growing demands for both environment and personal health. Metal oxide semiconductor (MOS)-based sensors have become brilliant candidates for the detection of toluene because of their superior performance over gas sensing. However, gas sensors based on pure MOS have certain limitations in selectivity, operating temperature, and long-term stability, which hinders their further practical applications. Noble metals (including Ag, Au, Pt, Pd, etc.) have the ability to enhance the performance of MOS-based sensors via surface functionalization. Herein, ZnO nanoflowers (ZNFs) modified with bimetallic AuPt are prepared for toluene detection through hydrothermal method. The response of a AuPt@ZNF-based gas sensor can reach 69.7 at 175 °C, which is 30 times, 9 times, and 10 times higher than that of the original ZNFs, Au@ZNFs, and Pt@ZNFs, respectively. Furthermore, the sensor also has a lower optimal operating temperature (175 °C), good stability (94% of previous response after one month), and high selectivity towards toluene, which is the result of the combined influence of the electronic and chemical sensitization of noble metals, as well as the unique synergistic effect of the AuPt alloy. In summary, AuPt@ZNF-based sensors can be further applied in toluene detection in practical applications.
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Affiliation(s)
- Huiting Peng
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (H.P.); (Y.L.); (Y.S.); (M.L.)
| | - Yiping Liu
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (H.P.); (Y.L.); (Y.S.); (M.L.)
| | - Yinfeng Shen
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (H.P.); (Y.L.); (Y.S.); (M.L.)
| | - Ling Xu
- Guanghua Lingang Engineering Application Technology Research and Development (Shanghai) Co., Ltd., Shanghai 201306, China; (L.X.); (J.L.)
| | - Jicun Lu
- Guanghua Lingang Engineering Application Technology Research and Development (Shanghai) Co., Ltd., Shanghai 201306, China; (L.X.); (J.L.)
| | - Ming Li
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (H.P.); (Y.L.); (Y.S.); (M.L.)
| | - Hong-Liang Lu
- State Key Laboratory of ASIC and System, Shanghai Institute of Intelligent Electronics & Systems, School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Liming Gao
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (H.P.); (Y.L.); (Y.S.); (M.L.)
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Zeyrek Ongun M, Oguzlar S. Improvement of the CO 2 Sensitivity: HPTS-Based Sensors along with Zn@SnO 2 and Sn@ZnO Additives. ACS OMEGA 2023; 8:29635-29645. [PMID: 37599973 PMCID: PMC10433486 DOI: 10.1021/acsomega.3c03708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/19/2023] [Indexed: 08/22/2023]
Abstract
Fluorescent pH-sensitive indicator dye, 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS), has become known as a preferred alternative for continuous and accurate monitoring of dissolved and/or gaseous CO2 in chemistry, medical, and biochemical research. The objective of this work is to enhance the HPTS dye's CO2 sensitivity in the presence of Zn@SnO2 and Sn@ZnO additive particles. Sol-gel synthesized metal oxide semiconductors (MOSs) were characterized using XRD, XPS, and SEM. The fluorophore dye and the MOS additives were embedded in the ethyl cellulose (EC) polymeric matrix to prepare the sensing thin films. The steady-state and decay kinetic measurements of the HPTS-based composites were obtained by PL spectroscopy for the concentration ranges of 0-100% p[CO2]. As expected, the addition of MOSs improves the sensor characteristics, specifically its CO2 sensing ability, linear response range, and relative signal change compared to the free form of HPTS. The CO2 sensitivities of the HPTS-based thin films were found at 17.6, 23.2, and 40.9 for the undoped, Zn@SnO2,-doped, and Sn@ZnO-doped forms of the HPTS, respectively. Additionally, the response and recovery times of the HPTS-based sensor agent with Sn@ZnO were measured as 10 and 460 s, respectively. The obtained results demonstrate that materials composed of HPTS with MOSs are potential candidates for CO2 sensors.
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Affiliation(s)
- Merve Zeyrek Ongun
- Chemistry
and Chemical Processing Technologies Department, Chemical Technology
Program, Izmir Vocational High School, Dokuz
Eylül University, Izmir 35210, Turkey
| | - Sibel Oguzlar
- Center
for Fabrication and Application of Electronic Materials, Dokuz Eylül University, Izmir 35210, Turkey
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He X, Qin W, Xie Y. Degradation of Tetracycline with Photocatalysis by CeO 2-Loaded Soybean Powder Carbon. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1076. [PMID: 36985970 PMCID: PMC10053631 DOI: 10.3390/nano13061076] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/12/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
In the process of using photocatalysts to treat tetracycline (TC) wastewater, the degradation efficiency of soybean powder carbon material (SPC) can be improved by loading it with cerium oxide (CeO2). In this study, firstly, SPC was modified by phytic acid. Then, the CeO2 was deposited on modified SPC using the self-assembly method. Catalyzed cerium (III) nitrate hexahydrate (CeH3NO4) was treated with alkali and calcined at 600 °C under nitrogen. XRD, XPS, SEM, EDS, UV-VIS /DRS, FTIR, PL and N2 adsorption-desorption methods were used to characterize the crystal structure, chemical composition, morphology, surface physical and chemical properties. The effects of catalyst dosage, monomer contrast, pH value and co-existing anions on TC oxidation degradation were investigated, and the reaction mechanism of a 600 Ce-SPC photocatalytic reaction system was discussed. The results show that the 600 Ce-SPC composite presents uneven gully morphology, which is similar to the natural "briquettes". The degradation efficiency of 600 Ce-SPC reached about 99% at 60 min under light irradiation when the optimal catalyst dosage and pH were 20 mg and 7. Meanwhile, the reusability of the 600 Ce-SPC samples showed good stability and catalytic activity after four cycles.
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Affiliation(s)
- Xinze He
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China
| | - Wenzhen Qin
- School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China
| | - Yu Xie
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China
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Venkatraman M, Kadian A, Choudhary S, Subramanian A, Singh A, Sikarwar S. Ultra‐Fast Benzene Gas (C
6
H
6
) Detection Characteristics of Cobalt‐Doped Aluminum Oxide Sensors. ChemistrySelect 2023. [DOI: 10.1002/slct.202204531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
| | - Ankit Kadian
- Department of Physics and Astrophysics University of Delhi Delhi 110 007 India
| | - Siddharth Choudhary
- Department of Physics and Astrophysics University of Delhi Delhi 110 007 India
| | | | - Ajeet Singh
- Nanomaterials and Sensor Research Laboratory Department of Physics, Babasaheb Bhimrao Ambedkar University Lucknow 226 025 India
| | - Samiksha Sikarwar
- Nanomaterials and Sensor Research Laboratory Department of Physics, Babasaheb Bhimrao Ambedkar University Lucknow 226 025 India
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8
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Investigate the effect of Zn12O12, AlZn11O12, and GaZn11O12 nanoclusters in the carbamazepine drug detection in gas and solvent phases: a comparative DFT study. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-03025-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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9
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Lee DH, Yoo H. Recent Advances in Photo-Activated Chemical Sensors. SENSORS (BASEL, SWITZERLAND) 2022; 22:9228. [PMID: 36501929 PMCID: PMC9738123 DOI: 10.3390/s22239228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 05/27/2023]
Abstract
Gas detectors have attracted considerable attention for monitoring harmful gases and air pollution because of industry development and the ongoing interest in human health. On the other hand, conventional high-temperature gas detectors are unsuitable for safely detecting harmful gases at high activation temperatures. Photo-activated gas detectors improve gas sensing performance at room temperature and enable low-power operation. This review presents a timely overview of photo-activated gas detectors that use illuminated light instead of thermal energy. Illuminated light assists in gas detection and is classified as visible or ultraviolet light. The research on photo-activated gas detectors is organized according to the type of gas that can be intensively detected. In addition, a development strategy for advancing photo-activated gas detectors is discussed.
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Affiliation(s)
| | - Hocheon Yoo
- Department of Electronic Engineering, Gachon University, 1342 Seongnam−daero, Seongnam 13120, Republic of Korea
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Yang JH, Park S, Yoh JJ. Toxic gas detection using 3-channel spark-induced plasma spectroscopy for indoor air quality monitoring. CHEMOSPHERE 2022; 307:136058. [PMID: 35973497 DOI: 10.1016/j.chemosphere.2022.136058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/04/2022] [Accepted: 08/09/2022] [Indexed: 06/15/2023]
Abstract
This study explored the toxic gas detection using a set of two spark-induced plasma emission spectroscopy (SIPS) modules as an alternative to conventional chemical sensors. This opens up a new possibility for detecting toxic molecules (formaldehyde, acetaldehyde, acetic acid, toluene, and ammonia) in real-time (<3 s) at relatively high sensitivity (<5 ppm). An optimized electrical controller (Raspberry Pi), manufactured as a compact and economical 3-channel optical measuring device, was developed for handling the high-resolution time-resolved electrical signals from the plasma emissions. Subsequently, the findings of this research elucidate the usability of the 3-channel SIPS device for quantitative monitoring of toxic gases.
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Affiliation(s)
- Jun-Ho Yang
- Institute of Advanced Machines and Design, Seoul National University1 Gwanakro, Gwanakgu, Seoul, 151-742, South Korea
| | - Sanghoon Park
- Department of Aerospace Engineering, Seoul National University1 Gwanakro, Gwanakgu, Seoul, 151-742, South Korea
| | - Jack J Yoh
- Institute of Advanced Machines and Design, Seoul National University1 Gwanakro, Gwanakgu, Seoul, 151-742, South Korea; Department of Aerospace Engineering, Seoul National University1 Gwanakro, Gwanakgu, Seoul, 151-742, South Korea.
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Hua Y, Ahmadi Y, Kim KH. Molecularly imprinted polymers for sensing gaseous volatile organic compounds: opportunities and challenges. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 311:119931. [PMID: 35977643 DOI: 10.1016/j.envpol.2022.119931] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/21/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Chemical sensors that can detect volatile organic compounds (VOCs) are the subject of extensive research efforts. Among various sensing technologies, molecularly imprinted polymers (MIPs) are regarded as a highly promising option for their detection with many advantageous properties, e.g., specific binding-site for template molecules, high recognition specificity, ease of preparation, and chemical stability. This review covers recent advances in the sensing application of MIPs toward various types of VOCs (e.g., aliphatic and aromatic compounds). Particular emphasis has been placed on multiple approaches to the synthesis of MIP-based VOC sensors in association with their performance and sensing mechanisms. Current challenges and opportunities for new VOC-sensing applications are also discussed based on MIP technology.
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Affiliation(s)
- Yongbiao Hua
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea
| | - Younes Ahmadi
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea.
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Pan F, Wu CC, Chen YL, Kung PY, Su YH. Machine learning ensures rapid and precise selection of gold sea-urchin-like nanoparticles for desired light-to-plasmon resonance. NANOSCALE 2022; 14:13532-13541. [PMID: 36004452 DOI: 10.1039/d2nr03727k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Sustainable energy strategies, particularly solar-to-hydrogen production, are anticipated to overcome the global reliance on fossil fuels. Thereby, materials enabling the production of green hydrogen from water and sunlight are continuously designed, e.g., ZnO nanostructures coated by gold sea-urchin-like nanoparticles, which employ the light-to-plasmon resonance to realize photoelectrochemical water splitting. But such light-to-plasmon resonance is strongly impacted by the size, the species, and the concentration of the metal nanoparticles coating on the ZnO nanoflower surfaces. Therefore, a precise prediction of the surface plasmon resonance is crucial to achieving an optimized nanoparticle fabrication of the desired light-to-plasmon resonance. To this end, we synthesized a substantial amount of metal (gold) nanoparticles of different sizes and species, which are further coated on ZnO nanoflowers. Subsequently, we utilized a genetic algorithm neural network (GANN) to obtain the synergistically trained model by considering the light-to-plasmon conversion efficiencies and fabrication parameters, such as multiple metal species, precursor concentrations, surfactant concentrations, linker concentrations, and coating times. In addition, we integrated into the model's training the data of nanoparticles due to their inherent complexity, which manifests the light-to-plasmon conversion efficiency far from the coupling state. Therefore, the trained model can guide us to obtain a rapid and automatic selection of fabrication parameters of the nanoparticles with the anticipated light-to-plasmon resonance, which is more efficient than an empirical selection. The capability of the method achieved in this work furthermore demonstrates a successful projection of the light-to-plasmon conversion efficiency and contributes to an efficient selection of the fabrication parameters leading to the anticipated properties.
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Affiliation(s)
- Fei Pan
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
- Physics Department, Technische Universität München, James-Franck-Straße 1, Garching 85748, Germany
| | - Chia-Chen Wu
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Yu-Lin Chen
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Po-Yen Kung
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Yen-Hsun Su
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
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Enhanced Response for Foodborne Pathogens Detection by Au Nanoparticles Decorated ZnO Nanosheets Gas Sensor. BIOSENSORS 2022; 12:bios12100803. [PMID: 36290940 PMCID: PMC9599186 DOI: 10.3390/bios12100803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 12/01/2022]
Abstract
Listeria monocytogenes is a hazardous foodborne pathogen that is able to cause acute meningitis, encephalitis, and sepsis to humans. The efficient detection of 3-hydroxy-2-butanone, which has been verified as a biomarker for the exhalation of Listeria monocytogenes, can feasibly evaluate whether the bacteria are contained in food. Herein, we developed an outstanding 3-hydroxy-2-butanone gas sensor based on the microelectromechanical systems using Au/ZnO NS as a sensing material. In this work, ZnO nanosheets were synthesized by a hydrothermal reaction, and Au nanoparticles (~5.5 nm) were prepared via an oleylamine reduction method. Then, an ultrasonic treatment was carried out to modified Au nanoparticles onto ZnO nanosheets. The XRD, BET, TEM, and XPS were used to characterize their morphology, microstructure, catalytic structure, specific surface area, and chemical composition. The response of the 1.0% Au/ZnO NS sensors vs. 25 ppm 3-hydroxy-2-butanone was up to 174.04 at 230 °C. Moreover, these sensors presented fast response/recovery time (6 s/7 s), great selectivity, and an outstanding limit of detection (lower than 0.5 ppm). This work is full of promise for developing a nondestructive, rapid and practical sensor, which would improve Listeria monocytogenes evaluation in foods.
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Light-Excited Ag-Doped TiO 2-CoFe 2O 4 Heterojunction Applied to Toluene Gas Detection. NANOMATERIALS 2021; 11:nano11123261. [PMID: 34947609 PMCID: PMC8704540 DOI: 10.3390/nano11123261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 11/17/2022]
Abstract
(1) Background: Toluene gas is widely used in indoor decoration and industrial production, and it not only pollutes the environment but also poses serious health risks. (2) Methods: In this work, TiO2−CoFe2O4−Ag quaternary composite gas-sensing material was prepared using a hydrothermal method to detect toluene. (3) Results: The recombination of electron–hole pairs was suppressed, and the light absorption range was expanded after constructing a heterojunction and doping with Ag, according to ultraviolet–visible (UV–vis) diffuse reflectance spectra and photoluminescence spectroscopy. Moreover, in the detection range of toluene gas (3 ppm–50 ppm), the response value of TiO2−CoFe2O4−Ag increased from 2 to 15, which was much higher than that of TiO2−Ag (1.7) and CoFe2O4−Ag (1.7). In addition, the working temperature was reduced from 360 °C to 263 °C. Furthermore, its response/recovery time was 40 s/51 s, its limit of detection was as low as 10 ppb, and its response value to toluene gas was 3–7 times greater than that of other interfering gases under the same test conditions. In addition, the response value to 5 ppm toluene was increased from 3 to 5.5 with the UV wavelength of 395 nm–405 nm. (4) Conclusions: This is primarily due to charge flow caused by heterojunction construction, as well as metal sensitization and chemical sensitization of novel metal doping. This work is a good starting point for improving gas-sensing capabilities for the detection of toluene gas.
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Zhang G, Zeng H, Liu J, Nagashima K, Takahashi T, Hosomi T, Tanaka W, Yanagida T. Nanowire-based sensor electronics for chemical and biological applications. Analyst 2021; 146:6684-6725. [PMID: 34667998 DOI: 10.1039/d1an01096d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Detection and recognition of chemical and biological species via sensor electronics are important not only for various sensing applications but also for fundamental scientific understanding. In the past two decades, sensor devices using one-dimensional (1D) nanowires have emerged as promising and powerful platforms for electrical detection of chemical species and biologically relevant molecules due to their superior sensing performance, long-term stability, and ultra-low power consumption. This paper presents a comprehensive overview of the recent progress and achievements in 1D nanowire synthesis, working principles of nanowire-based sensors, and the applications of nanowire-based sensor electronics in chemical and biological analytes detection and recognition. In addition, some critical issues that hinder the practical applications of 1D nanowire-based sensor electronics, including device reproducibility and selectivity, stability, and power consumption, will be highlighted. Finally, challenges, perspectives, and opportunities for developing advanced and innovative nanowire-based sensor electronics in chemical and biological applications are featured.
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Affiliation(s)
- Guozhu Zhang
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Hao Zeng
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Jiangyang Liu
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Kazuki Nagashima
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Tsunaki Takahashi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Takuro Hosomi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Wataru Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Takeshi Yanagida
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka, 816-8580, Japan
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16
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Zhang D, Pan W, Zhou L, Yu S. Room-Temperature Benzene Sensing with Au-Doped ZnO Nanorods/Exfoliated WSe 2 Nanosheets and Density Functional Theory Simulations. ACS APPLIED MATERIALS & INTERFACES 2021; 13:33392-33403. [PMID: 34228931 DOI: 10.1021/acsami.1c03884] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A gold-doped zinc oxide (Au-ZnO)/exfoliated tungsten diselenide (exfoliated WSe2) nanocomposite-based gas sensor toward benzene with high sensing properties was demonstrated. Epoxy resin was used as the matrix of the Au-ZnO/exfoliated WSe2 nanocomposite sensor. The straw-shaped Au-ZnO was synthesized by the hydrothermal method, and WSe2 nanosheets (NSs) were prepared via hydrothermal and liquid-phase exfoliation methods. The properties of Au-ZnO/exfoliated WSe2 nanoheterostructures constructed by self-assembly technology have been confirmed via a series of characterization methods. The benzene-sensing performances of sensors were tested at 25 °C. Compared with Au-ZnO, WSe2, and their composites, the Au-ZnO/exfoliated WSe2 sensor has a significant performance improvement, including a higher response and linear fit degree, better selectivity and repeatability, and faster detection rate. The significantly enhanced sensing properties of the Au-ZnO/exfoliated WSe2 sensor can be ascribed to the doping of Au nanoparticles, the increase in the specific surface area and adsorption sites of NSs after exfoliation, and the cooperative interface combination of the ZnO/WSe2 heterojunction. Furthermore, the sensitivity mechanism of the composite sensor to benzene was explored by density functional theory simulations.
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Affiliation(s)
- Dongzhi Zhang
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Wenjing Pan
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Lanjuan Zhou
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Sujing Yu
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
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17
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Borhade AV, Bobade VD, Tope DR, Agashe JA, Kushare SS. A Highly Selective and Sensitive H2S Gas Sensor Based on Novel Nanostructure Core–Shell FeCr2O4@ZnO@MgO. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02072-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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18
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Dasari S, Nagaraju P, Yelsani V, Tirumala S, M V RR. Nanostructured Indium Oxide Thin Films as a Room Temperature Toluene Sensor. ACS OMEGA 2021; 6:17442-17454. [PMID: 34278130 PMCID: PMC8280699 DOI: 10.1021/acsomega.1c01831] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 06/23/2021] [Indexed: 06/13/2023]
Abstract
Toluene gas is the most toxic and affects the respiratory system of humans, and thereby, its detection at lower levels is an important task. Herein, we report a room temperature-operatable indium oxide-based chemiresistive gas sensor, which detects 50 ppm toluene vapors. Nanocrystalline indium oxide (In2O3) films were sprayed on a pre-cleaned glass substrate using a cost-effective spray pyrolysis method at different substrate temperatures in the range of 350-500 °C. The X-ray diffraction studies confirmed that the sprayed thin films, which were deposited at different substrate temperatures, exhibit a cubic structure. The preferred orientation was aligned along the (222) orientation. Average crystallite size calculation based on the Scherrer formula indicates that the crystallite size increases with the enhancement of substrate temperature. FESEM analysis showed that the indium oxide thin films possess uniform grain distribution, which persists over the entire substrate. As the substrate temperature is increased, a partial agglomeration in the film morphology was observed. The deposited film's nanostructured nature was confirmed by transmission electron microscopy, and the polycrystalline nature was confirmed from the selected area electron diffraction pattern. Root mean square roughness of the samples was determined from the atomic force microscopy studies. From the Raman spectra, characteristic vibrational modes appeared at 558.61, 802.85, and 1097.18 cm-1 in all the samples, which confirms the cubic structure of indium oxide thin films. Photoluminescence emission spectra have been recorded with an excitation wavelength of 280 nm. The optical band gap was measured using the Tauc plot. The band gap was found to decrease with an increase in the substrate temperature. The gas-sensing performance of indium oxide films sprayed at various substrate temperatures has demonstrated a better response toward 50 ppm toluene gas at room temperature with good stability, and the response and recovery times were determined using a transient response curve.
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Affiliation(s)
- Sunil
Gavaskar Dasari
- Thin
Films & Nanomaterials Research Laboratory, Department of Physics, Osmania University, Hyderabad, Telangana State 500 007, India
| | - Pothukanuri Nagaraju
- Nanosensor
Research Laboratory, Department of Physics, CMR Technical Campus, Kandlaokoya, Hyderabad, Telangana State 501 401, India
| | - Vijayakumar Yelsani
- Department
of Physics, Anurag University, Hyderabad, Telangana State 500 088, India
| | - Sreekanth Tirumala
- Department
of Physics, JNTUH College of Engineering
Jagtial, Nachupally (Kondagattu), Jagtial Dist, Telangana State 505 501, India
| | - Ramana Reddy M V
- Thin
Films & Nanomaterials Research Laboratory, Department of Physics, Osmania University, Hyderabad, Telangana State 500 007, India
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19
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Kim T, Lee S, Cho W, Kwon YM, Baik JM, Shin H. Development of a Novel Gas-Sensing Platform Based on a Network of Metal Oxide Nanowire Junctions Formed on a Suspended Carbon Nanomesh Backbone. SENSORS 2021; 21:s21134525. [PMID: 34282792 PMCID: PMC8272173 DOI: 10.3390/s21134525] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/29/2021] [Accepted: 06/29/2021] [Indexed: 11/16/2022]
Abstract
Junction networks made of longitudinally connected metal oxide nanowires (MOx NWs) have been widely utilized in resistive-type gas sensors because the potential barrier at the NW junctions leads to improved gas sensing performances. However, conventional MOx–NW-based gas sensors exhibit limited gas access to the sensing sites and reduced utilization of the entire NW surfaces because the NW networks are grown on the substrate. This study presents a novel gas sensor platform facilitating the formation of ZnO NW junction networks in a suspended architecture by growing ZnO NWs radially on a suspended carbon mesh backbone consisting of sub-micrometer-sized wires. NW networks were densely formed in the lateral and longitudinal directions of the ZnO NWs, forming additional longitudinally connected junctions in the voids of the carbon mesh. Therefore, target gases could efficiently access the sensing sites, including the junctions and the entire surface of the ZnO NWs. Thus, the present sensor, based on a suspended network of longitudinally connected NW junctions, exhibited enhanced gas response, sensitivity, and lower limit of detection compared to sensors consisting of only laterally connected NWs. In addition, complete sensor structures consisting of a suspended carbon mesh backbone and ZnO NWs could be prepared using only batch fabrication processes such as carbon microelectromechanical systems and hydrothermal synthesis, allowing cost-effective sensor fabrication.
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Affiliation(s)
- Taejung Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea; (T.K.); (S.L.); (W.C.)
| | - Seungwook Lee
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea; (T.K.); (S.L.); (W.C.)
| | - Wootaek Cho
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea; (T.K.); (S.L.); (W.C.)
| | - Yeong-Min Kwon
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea;
| | - Jeong-Min Baik
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea;
| | - Heungjoo Shin
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea; (T.K.); (S.L.); (W.C.)
- Correspondence: ; Tel.: +82-52-217-2315
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20
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Kumar S, Kumar S, Sengar M, Kumari P. Gold-carbonaceous materials based heterostructures for gas sensing applications. RSC Adv 2021. [DOI: 10.1039/d1ra00361e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The carbon nanostructures such as carbon nanotubes and graphene decorated with gold nanoparticles exhibit promising gas sensing applications with enhanced sensitivity.
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Affiliation(s)
- Sanjay Kumar
- Department of Chemistry
- Deshbandhu College
- University of Delhi
- New Delhi-110019
- India
| | - Suneel Kumar
- Department of Chemistry
- Government Degree College Chamba
- India
| | - Manisha Sengar
- Department of Zoology
- Deshbandhu College
- University of Delhi
- New Delhi
- India
| | - Pratibha Kumari
- Department of Chemistry
- Deshbandhu College
- University of Delhi
- New Delhi-110019
- India
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21
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Mohamed RM, Ismail AA, Kadi MW, Alresheedi AS, Mkhalid IA. Facile Synthesis of Mesoporous Ag 2O-ZnO Heterojunctions for Efficient Promotion of Visible Light Photodegradation of Tetracycline. ACS OMEGA 2020; 5:33269-33279. [PMID: 33403289 PMCID: PMC7774259 DOI: 10.1021/acsomega.0c04969] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/02/2020] [Indexed: 05/20/2023]
Abstract
Fabrication of 3D mesoporous Ag2O-ZnO heterojunctions at varying Ag2O contents has been achieved through poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (Pluronic F-108) as the structure-directing agent for the first time. The mesoporous Ag2O-ZnO nanocomposites exhibited a mesoporous structure, which revealed a large pore volume and high surface area. The photocatalytic efficiency over mesoporous Ag2O-ZnO nanocomposites for tetracycline (TC) compared with that over commercial P-25 and pristine ZnO NPs through the visible light exposure was studied. Mesoporous 1.5% Ag2O-ZnO nanocomposites indicated the highest degradation efficiency of 100% of TC during 120 min of the visible light exposure compared with 5% and 10% for pristine ZnO NPs and commercial P-25, respectively. The TC degradation rate took place much rapidly over 1.5% Ag2O-ZnO nanocomposites (0.798 μmol L-1 min-1) as compared to either commercial P-25 (0.097 μmol L-1 min-1) or ZnO NPs (0.035 μmol L-1 min-1). The mesoporous 1.5% Ag2O-ZnO nanocomposite revealed the highest degradation rate among all synthesized samples, and it was 23 and 8 orders of magnitudes greater than those of pristine ZnO NPs and P-25, respectively. The photoluminescence and transient photocurrent intensity behaviors have been discussed to explore photocatalysis mechanisms. It is anticipated that the present work will contribute some suggestions for understanding other heterojunctions with outstanding behaviors.
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Affiliation(s)
- Reda M. Mohamed
- Department
of Chemistry, Faculty of Science, King Abdulaziz
University, P.O. Box 80203, Jeddah 21589, Kingdom
of Saudi Arabia
- Advanced
Materials Department, Central Metallurgical
R&D Institute, CMRDI, P.O. Box 87, Helwan, Cairo 11421, Egypt
| | - Adel. A. Ismail
- Advanced
Materials Department, Central Metallurgical
R&D Institute, CMRDI, P.O. Box 87, Helwan, Cairo 11421, Egypt
- Nanotechnologyand
Advanced Materials Program, Energy & Building Research Center, Kuwait Institute for Scientific Research (KISR), P.O. Box 24885, Safat 13109 Kuwait
| | - Mohammad W. Kadi
- Department
of Chemistry, Faculty of Science, King Abdulaziz
University, P.O. Box 80203, Jeddah 21589, Kingdom
of Saudi Arabia
| | - Ajayb S. Alresheedi
- Department
of Chemistry, Faculty of Science, King Abdulaziz
University, P.O. Box 80203, Jeddah 21589, Kingdom
of Saudi Arabia
| | - Ibraheem. A. Mkhalid
- Department
of Chemistry, Faculty of Science, King Abdulaziz
University, P.O. Box 80203, Jeddah 21589, Kingdom
of Saudi Arabia
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22
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Alam MM, Asiri AM, Uddin MT, Rahman MM, Islam MA. An alternative electrochemical approach for toluene detection with ZnO/MgO/Cr 2O 3 nanofibers on a glassy carbon electrode for environmental monitoring. RSC Adv 2020; 10:44641-44653. [PMID: 35516258 PMCID: PMC9058479 DOI: 10.1039/d0ra08577d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 11/22/2020] [Indexed: 12/03/2022] Open
Abstract
In situ fabrication of a sensitive electrochemical sensor using a wet-chemically prepared ternary ZnO/MgO/Cr2O3 nanofiber (NF)-decorated glassy carbon electrode (GCE) with Nafion adhesive was the approach of this study. The resultant NFs were characterized by various tools, such as powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) surface area analysis, and ultraviolet-visible spectroscopy (UV/Vis). The analytical parameters of the proposed toluene sensor were characterized as follows: good sensitivity (23.89 μA μM-1 cm-2), a lower limit of detection (LOD; 95.59 ± 1.5 pM), a limit of quantification (LOQ; 318.63 ± 2.0 pM), efficient response time (18 s), and the dynamic range (LDR) for toluene detection of 0.1 nM-0.01 mM. The real-time application of the sensor is to protect the environmental ecosystem, as well as the public health from the harmful effects of toluene. In an environmental application, the toluene sensor exhibited good reproducibility, robustness, LOD, LOQ, and good reliability, which are discussed in detail and compared to the literature.
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Affiliation(s)
- M M Alam
- Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology Sylhet 3100 Bangladesh
| | - Abdullah M Asiri
- Department of Chemistry, King Abdulaziz University, Faculty of Science P.O. Box 80203 Jeddah 21589 Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - M T Uddin
- Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology Sylhet 3100 Bangladesh
| | - Mohammed M Rahman
- Department of Chemistry, King Abdulaziz University, Faculty of Science P.O. Box 80203 Jeddah 21589 Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - M A Islam
- Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology Sylhet 3100 Bangladesh
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23
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Wang Y, Duan L, Deng Z, Liao J. Electrically Transduced Gas Sensors Based on Semiconducting Metal Oxide Nanowires. SENSORS (BASEL, SWITZERLAND) 2020; 20:E6781. [PMID: 33260973 PMCID: PMC7729516 DOI: 10.3390/s20236781] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 12/20/2022]
Abstract
Semiconducting metal oxide-based nanowires (SMO-NWs) for gas sensors have been extensively studied for their extraordinary surface-to-volume ratio, high chemical and thermal stabilities, high sensitivity, and unique electronic, photonic and mechanical properties. In addition to improving the sensor response, vast developments have recently focused on the fundamental sensing mechanism, low power consumption, as well as novel applications. Herein, this review provides a state-of-art overview of electrically transduced gas sensors based on SMO-NWs. We first discuss the advanced synthesis and assembly techniques for high-quality SMO-NWs, the detailed sensor architectures, as well as the important gas-sensing performance. Relationships between the NWs structure and gas sensing performance are established by understanding general sensitization models related to size and shape, crystal defect, doped and loaded additive, and contact parameters. Moreover, major strategies for low-power gas sensors are proposed, including integrating NWs into microhotplates, self-heating operation, and designing room-temperature gas sensors. Emerging application areas of SMO-NWs-based gas sensors in disease diagnosis, environmental engineering, safety and security, flexible and wearable technology have also been studied. In the end, some insights into new challenges and future prospects for commercialization are highlighted.
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Affiliation(s)
- Ying Wang
- Key Laboratory of Luminescence & Optical Information, Ministry of Education, School of Science, Beijing Jiaotong University, Beijing 100044, China;
| | - Li Duan
- Beijing Key Laboratory of Security and Privacy in Intelligent Transportation, Beijing Jiaotong University, Beijing 100044, China;
| | - Zhen Deng
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Jianhui Liao
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China;
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24
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Zhang Y, Xiao R, Wang S, Zhu H, Song H, Chen G, Lin H, Zhang J, Xiong J. Oxygen vacancy enhancing Fenton-like catalytic oxidation of norfloxacin over prussian blue modified CeO 2: Performance and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122863. [PMID: 32485507 DOI: 10.1016/j.jhazmat.2020.122863] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 04/22/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
To develop an efficient heterogeneous Fenton-like catalyst is of great importance for degrading organic pollutants. CeO2 was selected as the catalyst carrier. Prussian blue (PB) was chose as the iron resource for its sensitivity to H2O2 and low toxicity. PB modified CeO2 composite was successfully fabricated and used for Fenton-like oxidation of norfloxacin (NOR) in this study. The characteristics of the catalysts demonstrated that the doping of PB distorted the lattice locally and increased the surface area of CeO2 obviously. The XPS analysis also indicated that chemically supported catalysts PB/CeO2 with more Ce3+ was beneficial to Fenton-like catalytic reaction. The degradation tests showed that the PB/CeO2 significantly enhanced the removal of NOR which indicated a synergistic effect between PB and CeO2. The reason should be mainly attributed to the synergetic catalysis of H2O2 by Fe3+/Fe2+ and Ce3+/Ce4+ redox couples. At the same time, PB/CeO2 composite showed well reusability and wide pH value range of 2-9 with fairly low concentration of iron ions. The reaction mechanisms were identified to be OH oxidation and improvement of oxygen vacancies (OVs).
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Affiliation(s)
| | - Ruyi Xiao
- Guangxi University, Nanning, 530004, China
| | - Shuangfei Wang
- Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, China.
| | - Hongxiang Zhu
- Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, China
| | - Hainong Song
- Guangxi BOSSCO Environmental Protection Science and Technology Co., LTD., Nanning, 530004, China
| | - Guoning Chen
- Guangxi BOSSCO Environmental Protection Science and Technology Co., LTD., Nanning, 530004, China
| | - Hongfei Lin
- Guangxi BOSSCO Environmental Protection Science and Technology Co., LTD., Nanning, 530004, China
| | - Jian Zhang
- Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, China
| | - Jianhua Xiong
- Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, China
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25
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Kaur N, Singh M, Comini E. One-Dimensional Nanostructured Oxide Chemoresistive Sensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:6326-6344. [PMID: 32453573 PMCID: PMC8154880 DOI: 10.1021/acs.langmuir.0c00701] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Day by day, the demand for portable, low cost, and efficient chemical/gas-sensing devices is increasing due to worldwide industrial growth for various purposes such as environmental monitoring and health care. To fulfill this demand, nanostructured metal oxides can be used as active materials for chemical/gas sensors due to their high crystallinity, remarkable physical/chemical properties, ease of synthesis, and low cost. In particular, (1D) one-dimensional metal oxides nanostructures, such as nanowires, exhibit a fast response, selectivity, and stability due to their high surface-to-volume ratio, well-defined crystal orientations, controlled unidirectional electrical properties, and self-heating phenomenon. Moreover, with the availability of large-scale production methods for nanowire growth such as thermal oxidation and evaporation-condensation growth, the development of highly efficient, low cost, portable, and stable chemical sensing devices is possible. In the last two decades, tremendous advances have been achieved in 1D nanostructured gas sensors ever since the pioneering work by Comini on the development of a SnO2 nanobelt for gas sensor applications in 2002, which is one such example from which many researchers began to explore the field of 1D-nanostructure-based chemical/gas sensors. The Sensor Laboratory (University of Brescia) has made major contributions to the field of metal oxide nanowire chemical/gas-sensing devices. Over the years, different metal oxides such as SnO2, ZnO, WO3, NiO, CuO, and their heterostructures have been grown for their nanowire morphology and successfully integrated into chemoresistive gas-sensing devices. Hence in this invited feature article, Sensor Laboratory research on the synthesis of metal oxide nanowires and novel heterostructures and their characterization and gas-sensing performance during exposure to different gas analytes has been presented. Moreover, some new strategies such as branched-like nanowire heterostructures and core-shell nanowire structures adopted to enhance the performance of nanowire-based chemical sensor are presented in detail.
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26
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Qu Y, Yang Y, Du R, Zhao M. Peroxidase activities of gold nanowires synthesized by TMV as template and their application in detection of cancer cells. Appl Microbiol Biotechnol 2020; 104:3947-3957. [PMID: 32179948 DOI: 10.1007/s00253-020-10520-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 02/22/2020] [Accepted: 03/03/2020] [Indexed: 02/01/2023]
Abstract
A sensing methodology that combines Au, tobacco mosaic virus (TMV), and folic acid for selective, sensitive, and colorimetric detection of tumor cells based on the peroxidase-like activity was reported in this study. Gold nanowires with a high aspect ratio were synthesized using TMV as a template. Au@TMV nanowire (AT) complex was obtained with diameter of 4 nm and length between 200 and 300 nm. In addition, since TMV was biocompatible and had many amino and carboxyl groups on its surface, AT was conjugated by folate to form a folic acid (FA)-conjugated AT composite (ATF) and tested by FTIR measurements. Furthermore, the peroxidase-like properties were studied and the optimal conditions for mimic enzyme activity were optimized. Finally, HeLa and other tumor cells expressed excessive receptors of folate on the surface, which can specifically bind to folic acid. As the specific binding of ATF with HeLa cells, the peroxidase properties of ATF were used for detection of cancer cells (Scheme 1). The cancer cells were detected not only qualitatively but also quantitatively. In this study, as low as 2000 cancer cells/mL could be detected using the current method.
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Affiliation(s)
- Yuejun Qu
- College of Life Science, Northeast Forestry University, No. 26, Hexing Road, Harbin, 150040, China
- Mudanjiang Branch of Heilongjiang Academy of Forestry Science, No. 16, East Diming Street, Mudanjiang, 157010, China
| | - Yue Yang
- College of Life Science, Northeast Forestry University, No. 26, Hexing Road, Harbin, 150040, China
| | - Renjie Du
- College of Life Science, Northeast Forestry University, No. 26, Hexing Road, Harbin, 150040, China
- Mudanjiang Branch of Heilongjiang Academy of Forestry Science, No. 16, East Diming Street, Mudanjiang, 157010, China
| | - Min Zhao
- College of Life Science, Northeast Forestry University, No. 26, Hexing Road, Harbin, 150040, China.
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Oliveira TNT, Zito CA, Perfecto TM, Azevedo GM, Volanti DP. ZnO twin-rods decorated with Pt nanoparticles for butanone detection. NEW J CHEM 2020. [DOI: 10.1039/d0nj03206a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
ZnO twin-rods were synthesized using a combination of the ultrasonic spray nozzle and microwave-assisted hydrothermal methods. The VOC detection test revealed that the decoration with 2% of Pt provides a more sensitive and selective butanone sensor.
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Affiliation(s)
- Taís N. T. Oliveira
- Laboratory of Materials for Sustainability (LabMatSus)
- Ibilce
- São Paulo State University (Unesp)
- S. J. Rio Preto
- Brazil
| | - Cecilia A. Zito
- Laboratory of Materials for Sustainability (LabMatSus)
- Ibilce
- São Paulo State University (Unesp)
- S. J. Rio Preto
- Brazil
| | - Tarcísio M. Perfecto
- Laboratory of Materials for Sustainability (LabMatSus)
- Ibilce
- São Paulo State University (Unesp)
- S. J. Rio Preto
- Brazil
| | - Gustavo M. Azevedo
- Institute of Physics
- Federal University of Rio Grande do Sul (UFRGS)
- Porto Alegre
- Brazil
- Brazilian Synchrotron Light Laboratory (LNLS)/CNPEM
| | - Diogo P. Volanti
- Laboratory of Materials for Sustainability (LabMatSus)
- Ibilce
- São Paulo State University (Unesp)
- S. J. Rio Preto
- Brazil
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28
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Thermo-Electro-Mechanical Simulation of Semiconductor Metal Oxide Gas Sensors. MATERIALS 2019; 12:ma12152410. [PMID: 31357746 PMCID: PMC6695634 DOI: 10.3390/ma12152410] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 07/20/2019] [Accepted: 07/25/2019] [Indexed: 11/21/2022]
Abstract
There is a growing demand in the semiconductor industry to integrate many functionalities on a single portable device. The integration of sensor fabrication with the mature CMOS technology has made this level of integration a reality. However, sensors still require calibration and optimization before full integration. For this, modeling and simulation is essential, since attempting new, innovative designs in a laboratory requires a long time and expensive tests. In this manuscript we address aspects for the modeling and simulation of semiconductor metal oxide gas sensors, devices which have the highest potential for integration because of their CMOS-friendly fabrication capability and low operating power. We analyze recent advancements using FEM models to simulate the thermo-electro-mechanical behavior of the sensors. These simulations are essentials to calibrate the design choices and ensure low operating power and improve reliability. The primary consumer of power is a microheater which is essential to heat the sensing film to appropriately high temperatures in order to initiate the sensing mechanism. Electro-thermal models to simulate its operation are presented here, using FEM and the Cauer network model. We show that the simpler Cauer model, which uses an electrical circuit to model the thermo-electrical behavior, can efficiently reproduce experimental observations.
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29
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Kang Y, Pyo S, Jeong HI, Lee K, Baek DH, Kim J. Impact Ionization Induced by Accelerated Photoelectrons for Wide-Range and Highly Sensitive Detection of Volatile Organic Compounds at Room Temperature. ACS APPLIED MATERIALS & INTERFACES 2019; 11:20491-20499. [PMID: 31066269 DOI: 10.1021/acsami.9b02153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ionization-based volatile organic compound (VOC) sensors that use photons or electrons operating at room temperature have attracted considerable attention as a promising alternative to conventional metal oxide-based sensors that require high temperature for sensing function. However, the photoionization sensors cannot ionize many gas species for their limited photon energy, and field emission-based ionization sensors that rely on the breakdown voltage of specific gas species in a pure state may not tell different concentration. This work demonstrates the detection of VOCs using impact ionization induced by accelerated photoelectrons. Although the photoelectrons emitted by relatively low photon energy typically have insufficient kinetic energy to cause impact ionization, in this approach, they are accelerated between microgap electrodes to enhance their kinetic energy such that the impact ionization of VOCs can be achieved. The demonstrated gas sensor sensitively detects toluene concentration in a wide range from 1000 ppm to 100 ppb with fast response and recovery time at room temperature. Additionally, diverse VOC species including benzene, p-xylene, and even acetylene with high ionization energy can be detected. The proposed method could be a viable solution for VOC sensors with low cost, scalable producibility, and high performance.
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Affiliation(s)
- Yunsung Kang
- School of Mechanical Engineering , Yonsei University , 50 Yonsei-ro, Seodaemun-gu , Seoul 03722 , Republic of Korea
| | - Soonjae Pyo
- School of Mechanical Engineering , Yonsei University , 50 Yonsei-ro, Seodaemun-gu , Seoul 03722 , Republic of Korea
| | - Han-Il Jeong
- School of Mechanical Engineering , Yonsei University , 50 Yonsei-ro, Seodaemun-gu , Seoul 03722 , Republic of Korea
| | - Kyounghoon Lee
- School of Mechanical Engineering , Yonsei University , 50 Yonsei-ro, Seodaemun-gu , Seoul 03722 , Republic of Korea
| | - Dae-Hyun Baek
- School of Mechanical Engineering , Yonsei University , 50 Yonsei-ro, Seodaemun-gu , Seoul 03722 , Republic of Korea
| | - Jongbaeg Kim
- School of Mechanical Engineering , Yonsei University , 50 Yonsei-ro, Seodaemun-gu , Seoul 03722 , Republic of Korea
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30
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Mesoporous Au@ZnO flower-like nanostructure for enhanced formaldehyde sensing performance. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.02.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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31
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Kang J, Kim KT, Jeon SP, Facchetti A, Kim J, Park SK. Nano Pt-decorated transparent solution-processed oxide semiconductor sensor with ppm detection capability. RSC Adv 2019; 9:6193-6198. [PMID: 35517295 PMCID: PMC9062710 DOI: 10.1039/c8ra09917k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 01/31/2019] [Indexed: 11/21/2022] Open
Abstract
In this study, we fabricated a transparent Pt-decorated indium gallium zinc oxide (IGZO) thin film based on a solution process to demonstrate a portable, low-cost volatile organic compound (VOC) based real-time monitoring system with the detection capability at as low as 1 ppm. The Pt/IGZO sensor shows remarkable response characteristics upon exposure of isobutylene (2-methylpropene) gas down to 1 ppm while also maintaining the reliability and reproducibility of the sensing capability, which is almost comparable to a commercial VOC sensor based on a photoionization detector (PID) method. For 1 ppm of isobutylene gas, the response and recovery time of the sensor estimated were as low as 25 s (S90) and 80 s (R90), respectively. The catalytic activity of Pt nanoparticles on an IGZO nano-thin film plays a key role in drastically enhancing the sensitivity and dynamic response behaviour of the VOC sensor. Furthermore, the solution-processed IGZO thin film decorated with Pt nanoparticles also represents a highly transparent (in visible region, ∼90%) and low-cost fabrication platform, thereby, facilitating the optical visibility and disposability for future applications in the field of electronics. Therefore, we believe that the nano-Pt/IGZO hybrid material for VOC sensor developed by us will pave a way to detect any harmful chemical gases and VOCs in various environments. A transparent VOC sensor based on a solution-processed IGZO for application in real-time VOC monitoring system.![]()
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Affiliation(s)
- Jingu Kang
- School of Electrical and Electronic Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Kyung-Tae Kim
- School of Electrical and Electronic Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Seoung-Pil Jeon
- School of Electrical and Electronic Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Antonio Facchetti
- Department of Chemistry and the Materials Research Center and the Argonne-Northwestern Solar Energy Research Center, Northwestern University Evanston Illinois 60208 USA.,Flexterra Inc. Skokie Illinois 60077 USA
| | - Jaekyun Kim
- Department of Photonics and Nanoelectronics, Hanyang University Ansan Gyeonggi-do 15588 Republic of Korea
| | - Sung Kyu Park
- School of Electrical and Electronic Engineering, Chung-Ang University Seoul 06974 Republic of Korea
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32
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Tang Z, Zhang Y, Deng X, Dai Y, Zhang W, Fan F, Qing B, Zhu C, Fan J, Shi Y. The H 2 sensing properties of facets-dependent Pd nanoparticles-supported ZnO nanorods. Dalton Trans 2018; 47:15331-15337. [PMID: 30207336 DOI: 10.1039/c8dt01980k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The loading of noble-metal nanoparticles (NPs) is an effective approach for the enhancement of H2 sensing performances, although there have been rare reports focused on the effect of the facets of noble-metal nanoparticles in the H2 sensing performance. The catalytic and adsorption performance of noble-metal nanocrystals is mainly determined by their exposed facets, while the gas sensing performance of sensors is strongly correlated to the adsorption and reaction between the gases and sensor materials. Hence, it is very important to study the gas sensing performance of the different facets-exposed noble-metal nanoparticles. In this study, a set of shape-controlled Pd NPs have been prepared and loaded onto the ZnO nanorods, and the gas sensing performance of the Pd nanoparticle-loaded ZnO to 250 ppm of H2 has been detected. The results indicate that the cubic Pd NPs-loaded ZnO shows higher and faster sensing response to H2 than the octahedral and spherical Pd-loaded ZnO owing to the stronger adsorption of the H2 by cubic Pd NPs enclosed by (100) facets than the octahedral NPs enclosed by (111) facets. The cubic Pd NPs-loaded ZnO also exhibits better sensing selectivity and repeatability towards H2.
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Affiliation(s)
- Zhilei Tang
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Engineering and Technology Research Center of Comprehensive Utilization of Salt Lake Recources, Qinghai Institute of Salt Lake, Chinese Academy of Sciences, Xining 810008, China.
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33
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Super Stable Pollution Gas Sensor Based on Functionalized 2D Boron Nitride Nanosheet Materials for High Humidity Environments. CHEMOSENSORS 2018. [DOI: 10.3390/chemosensors6040049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We report on studies of new gas sensing devices to be used in high humidity environments. Highly thermal-stable, super hydrophobic 2-dimensional (2D) boron nitride nanosheets (BNNSs) functionalized with Pt nanoparticles were prepared and used as an active layer for the prototype. The morphologic surface, crystallographic structures and chemical compositions of the synthesized 2D materials were characterized by using optical microscope, scanning electron microscope (SEM), transmission electron microscope (TEM) and atomic force microscope (AFM) and Raman scattering, respectively. The experimental data reveals that high-quality BNNSs were prepared. A pair of Au electrodes were combined with a basic electrical circuit and the 2D sensing material to form high-performance gas sensors for the detection of pollution gases. The present structure is simple and the fabrication is easy and fast, which ensures the creation of a low-cost prototype with harsh (high humidity, high temperature) environment resistance and potential for miniaturization. The responses of the prototype to different target gases with different concentrations were characterized. The influences of the operating temperature and bias voltage effect on sensing performances were also investigated. The fabricated sensors appear to have high selectivity, high sensitivity and fast response to target gases. The sensing mechanism in the present case is attributed to the electron donation from the target gas molecules to the active layer, leading to the change of electrical properties on the surface of BNNS layer.
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34
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Donarelli M, Ottaviano L. 2D Materials for Gas Sensing Applications: A Review on Graphene Oxide, MoS₂, WS₂ and Phosphorene. SENSORS (BASEL, SWITZERLAND) 2018; 18:E3638. [PMID: 30373161 PMCID: PMC6264021 DOI: 10.3390/s18113638] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/18/2018] [Accepted: 10/18/2018] [Indexed: 12/11/2022]
Abstract
After the synthesis of graphene, in the first year of this century, a wide research field on two-dimensional materials opens. 2D materials are characterized by an intrinsic high surface to volume ratio, due to their heights of few atoms, and, differently from graphene, which is a semimetal with zero or near zero bandgap, they usually have a semiconductive nature. These two characteristics make them promising candidate for a new generation of gas sensing devices. Graphene oxide, being an intermediate product of graphene fabrication, has been the first graphene-like material studied and used to detect target gases, followed by MoS₂, in the first years of 2010s. Along with MoS₂, which is now experiencing a new birth, after its use as a lubricant, other sulfides and selenides (like WS₂, WSe₂, MoSe₂, etc.) have been used for the fabrication of nanoelectronic devices and for gas sensing applications. All these materials show a bandgap, tunable with the number of layers. On the other hand, 2D materials constituted by one atomic species have been synthetized, like phosphorene (one layer of black phosphorous), germanene (one atom thick layer of germanium) and silicone (one atom thick layer of silicon). In this paper, a comprehensive review of 2D materials-based gas sensor is reported, mainly focused on the recent developments of graphene oxide, exfoliated MoS₂ and WS₂ and phosphorene, for gas detection applications. We will report on their use as sensitive materials for conductometric, capacitive and optical gas sensors, the state of the art and future perspectives.
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Affiliation(s)
- Maurizio Donarelli
- Sensor Laboratory, Department of Information Engineering, University of Brescia, Via Branze 38, 25136 Brescia, Italy.
- Department of Physical and Chemical Sciences, University of L'Aquila, Via Vetoio 10, 67100 L'Aquila, Italy.
| | - Luca Ottaviano
- Department of Physical and Chemical Sciences, University of L'Aquila, Via Vetoio 10, 67100 L'Aquila, Italy.
- CNR-SPIN, UOS L'Aquila, Via Vetoio 10, 67100 L'Aquila, Italy.
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35
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Preparation of silver-loaded titanium dioxide hedgehog-like architecture composed of hundreds of nanorods and its fast response to xylene. J Colloid Interface Sci 2018; 536:215-223. [PMID: 30368093 DOI: 10.1016/j.jcis.2018.10.035] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 09/24/2018] [Accepted: 10/14/2018] [Indexed: 11/20/2022]
Abstract
Hedgehog-like titanium dioxide (TiO2) architectures composed of hundreds of one-dimensional (1D) nanorods and silver (Ag) loaded TiO2 with different amounts (0.2 at%, 0.5 at% and 1 at%) were successfully prepared by facile hydrothermal process and simple isometric impregnation route. The high electron mobility of 1D nanorods on the surface of TiO2 and the high porosity of Ag loaded hedgehog-like TiO2 architectures enable the sensor with fast responsive and recovered properties. TiO2 loaded with 0.5 at% Ag exhibited the highest response to xylene with low response/recovery time at the operating temperature of 375 °C. In addition, the sensitivity and selectivity of the TiO2 sensor were enhanced markedly with Ag loading.
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36
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Muckley ES, Collins L, Ievlev AV, Ye X, Kisslinger K, Sumpter BG, Lavrik NV, Nam CY, Ivanov IN. Light-Activated Hybrid Nanocomposite Film for Water and Oxygen Sensing. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31745-31754. [PMID: 30111086 DOI: 10.1021/acsami.8b08072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Oxygen and water vapor sensing properties are investigated in metal-oxide-hybrid polymer nanocomposite thin films generated by infiltration synthesis, which incorporates molecular ZnO into the matrix of SU-8 polymer, a common negative-tone photoresist. The hybrid thin films display 20-fold higher gravimetric responses to oxygen and water vapor than those of control ZnO thin films in the dark. An additional 50-500% enhanced responses are detected under UV irradiation. The overall enhanced gravimetric response in the hybrid film is attributed to the ZnO molecules distributed in the polymer matrix, whereas the UV enhancement is explained by the light-induced, reversible generation of hydrophilic fluoroantimonic acid from triarylsulfonium hexafluoroantimonate photoacids, which leads to the increased surface potential and adsorption energies for oxygen and water. A gravimetric sensor based on a series of ZnO-infiltrated SU-8 films under UV excitation enables 96% accurate classification of water and oxygen environment with sub 10 mTorr detection limits. The results demonstrate UV-induced fully reversible surface hydrophilicity of ZnO/SU-8 hybrid nanocomposites.
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Affiliation(s)
- Eric S Muckley
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
| | - Liam Collins
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
| | - Anton V Ievlev
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
| | - Xinyi Ye
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton , New York 11973 , United States
| | - Kim Kisslinger
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton , New York 11973 , United States
| | - Bobby G Sumpter
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
| | - Nickolay V Lavrik
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
| | - Chang-Yong Nam
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton , New York 11973 , United States
| | - Ilia N Ivanov
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
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37
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Wang L, Cha X, Wu Y, Xu J, Cheng Z, Xiang Q, Xu J. Superhydrophobic Polymerized n-Octadecylsilane Surface for BTEX Sensing and Stable Toluene/Water Selective Detection Based on QCM Sensor. ACS OMEGA 2018; 3:2437-2443. [PMID: 31458538 PMCID: PMC6641280 DOI: 10.1021/acsomega.8b00061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 02/02/2018] [Indexed: 06/10/2023]
Abstract
The present study reports a facile and low-cost route to produce a superhydrophobic polymerized n-octadecylsilane surface with micronano hierarchical structure on the surface of quartz crystal microbalance (QCM). The surface is used as a novel functional sensing material to detect benzene, toluene, ethylbenzene, and xylene (BTEX) vapor on the basis of QCM platform. The composites were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and contact angle measurements. The type of solvent used to dissolve N-octadecyltrichlorosilane has a big impact on the morphology, wettability, and sensing performance of the polymer material. Further systematic studies suggest that surface wettability (contact angle) and molecular polarity of the detected analytes are effective factors in selective detection toward BTEX using resonator-type gas sensors. Gas sensing results toward toluene in different relative humidities show that the new-style sensor has stable toluene/water selective detection performance and that the disturbance of water is negligible. Besides, the limit of detection toward toluene of the sensor is lower than the odor threshold value.
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Affiliation(s)
- Luyu Wang
- NEST
Lab, Department of Physics, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, P. R.
China
| | - Xiaoli Cha
- NEST
Lab, Department of Physics, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, P. R.
China
| | - Yunling Wu
- Jiangsu
Key Laboratory for Carbon-Based Functional Materials & Devices,
Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou 215123, P. R. China
| | - Jin Xu
- School
of Industrial Engineering, Purdue University, 315 N. Grant Street, West Lafayette, Indiana 47907, United States
| | - Zhixuan Cheng
- NEST
Lab, Department of Physics, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, P. R.
China
| | - Qun Xiang
- NEST
Lab, Department of Physics, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, P. R.
China
| | - Jiaqiang Xu
- NEST
Lab, Department of Physics, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, P. R.
China
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38
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Suematsu K, Watanabe K, Tou A, Sun Y, Shimanoe K. Ultraselective Toluene-Gas Sensor: Nanosized Gold Loaded on Zinc Oxide Nanoparticles. Anal Chem 2018; 90:1959-1966. [DOI: 10.1021/acs.analchem.7b04048] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
| | | | | | - Yongjiao Sun
- Micro and Nano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System, Ministry of Education & College of Information Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
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39
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Yin Y, Li F, Zhang N, Ruan S, Zhang H, Chen Y. Improved gas sensing properties of silver-functionalized ZnSnO3 hollow nanocubes. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00470f] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Porous silver-functionalized ZnSnO3 hollow nanocubes as a gas sensor with an ultra-fast response and recovery speed for acetone detection.
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Affiliation(s)
- YanYang Yin
- State Key Laboratory on Integrated Optoelectronics and College of Electronic Science & Engineering
- Jilin University
- Changchun 130012
- P. R. China
| | - Feng Li
- State Key Laboratory on Integrated Optoelectronics and College of Electronic Science & Engineering
- Jilin University
- Changchun 130012
- P. R. China
| | - Nan Zhang
- State Key Laboratory on Integrated Optoelectronics and College of Electronic Science & Engineering
- Jilin University
- Changchun 130012
- P. R. China
| | - Shengping Ruan
- State Key Laboratory on Integrated Optoelectronics and College of Electronic Science & Engineering
- Jilin University
- Changchun 130012
- P. R. China
| | - Haifeng Zhang
- School of Electrical
- Computer and Energy Engineering
- Arizona State University
- Tempe
- USA
| | - Yu Chen
- State Key Laboratory on Integrated Optoelectronics and College of Electronic Science & Engineering
- Jilin University
- Changchun 130012
- P. R. China
- Institute of Semiconductors
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40
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Zhu MY, Zhang LX, Yin J, Chen JJ, Bie LJ. Ppt-level benzene detection and gas sensing mechanism using (C4H9NH3)2PbI2Br2 organic–inorganic layered perovskite. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00803e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Organic–inorganic layered perovskites employed as resistive gas sensing candidates for ppt-level benzene detection at a working temperature of 160 °C.
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Affiliation(s)
- Meng-Ya Zhu
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
- China
| | - Le-Xi Zhang
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
- China
- Tianjin Key Lab for Photoelectric Materials & Devices
| | - Jing Yin
- School of Environmental Science and Safety Engineering
- Tianjin University of Technology
- Tianjin 300384
- China
| | - Jing-Jing Chen
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
- China
| | - Li-Jian Bie
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
- China
- Tianjin Key Lab for Photoelectric Materials & Devices
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41
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One-step Synthesis of Ordered Pd@TiO 2 Nanofibers Array Film as Outstanding NH 3 Gas Sensor at Room Temperature. Sci Rep 2017; 7:14688. [PMID: 29116163 PMCID: PMC5677023 DOI: 10.1038/s41598-017-15319-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 10/25/2017] [Indexed: 01/05/2023] Open
Abstract
The one dimensional (1D) ordered porous Pd@TiO2 nanofibers (NFs) array film have been fabricated via a facile one-step synthesis of the electrospinning approach. The Pd@TiO2 NFs (PTND3) contained Pd (2.0 wt %) and C, N element (16.2 wt %) display high dispersion of Pd nanoparticles (NPs) on TiO2 NFs. Adding Pd meshed with C, N element to TiO2 based NFs might contribute to generation of Lewis acid sites and Brønsted acid sites, which have been recently shown to enhance NH3 adsorption-desorption ability; Pd NPs could increase the quantity of adsorbed O2 on the surface of TiO2 based NFs, and accelerated the O2 molecule-ion conversion rate, enhanced the ability of electron transmission. The response time of PTND3 sensor towards 100 ppm NH3 is only 3 s at room temperature (RT). Meantime, the response and response time of the PTND3 to the NH3 is 1 and 14s even at the concentration of 100 ppb. Therefore, the ordered Pd@TiO2 NFs array NH3 sensor display great potential for practical applications.
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42
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Choi J, Seong TW, Jeun M, Lee KH. Field-Effect Biosensors for On-Site Detection: Recent Advances and Promising Targets. Adv Healthc Mater 2017; 6. [PMID: 28885777 DOI: 10.1002/adhm.201700796] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 07/24/2017] [Indexed: 12/21/2022]
Abstract
There is an explosive interest in the immediate and cost-effective analysis of field-collected biological samples, as many advanced biodetection tools are highly sensitive, yet immobile. On-site biosensors are portable and convenient sensors that provide detection results at the point of care. They are designed to secure precision in highly ionic and heterogeneous solutions with minimal hardware. Among various methods that are capable of such analysis, field-effect biosensors are promising candidates due to their unique sensitivity, manufacturing scalability, and integrability with computational circuitry. Recent developments in nanotechnological surface modification show promising results in sensing from blood, serum, and urine. This report gives a particular emphasis on the on-site efficacy of recently published field-effect biosensors, specifically, detection limits in physiological solutions, response times, and scalability. The survey of the properties and existing detection methods of four promising biotargets, exosomes, bacteria, viruses, and metabolites, aims at providing a roadmap for future field-effect and other on-site biosensors.
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Affiliation(s)
- Jaebin Choi
- Sensor System Research Center; Korea Institute of Science and Technology (KIST); 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea
| | - Tae Wha Seong
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology (KIST); 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea
| | - Minhong Jeun
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology (KIST); 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea
| | - Kwan Hyi Lee
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology (KIST); 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea
- Department of Biomedical Engineering; Korea University of Science and Technology (UST); 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea
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Sui L, Zhang X, Cheng X, Wang P, Xu Y, Gao S, Zhao H, Huo L. Au-Loaded Hierarchical MoO 3 Hollow Spheres with Enhanced Gas-Sensing Performance for the Detection of BTX (Benzene, Toluene, And Xylene) And the Sensing Mechanism. ACS APPLIED MATERIALS & INTERFACES 2017; 9:1661-1670. [PMID: 28009163 DOI: 10.1021/acsami.6b11754] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Monodisperse, hierarchical α-MoO3 hollow spheres were fabricated using a facile template-free solvothermal method combined with subsequent calcination. Various quantities of Au nanoparticles (NPs) were deposited on the α-MoO3 hollow spheres to construct hybrid nanomaterials for chemical gas sensors and their BTX sensing properties were investigated. The 2.04 wt % Au-loaded α-MoO3 sensor can detect BTX effectively at 250 °C, especially, its responses to 100 ppm toluene and xylene are 17.5 and 22.1, respectively, which are 4.6 and 3.9 times higher than those of pure α-MoO3 hollow spheres at 290 °C. Besides, Au loading decreased the response times to toluene and xylene from 19 and 6 s to 1.6 and 2 s, respectively, lowered the working temperature from 290 to 250 °C as compared with those of pure α-MoO3. The surface status of Au/α-MoO3 hollow spheres before and after contacting with toluene at 250 °C was analyzed through XPS technique. Possible oxidization product of toluene was confirmed by GC for the first time. The gas-sensing mechanism of the Au/α-MoO3 was speculated as the oxidation of toluene to water and carbon dioxide by chemisorbed oxygen and lattice oxygen. The possible reason related with improved gas-sensing properties of the Au-functionalized α-MoO3 was discussed.
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Affiliation(s)
- Lili Sui
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
- School of Chemistry and Chemical Engineering, Qiqihar University , Qiqihar 161006, China
| | - Xianfa Zhang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
| | - Xiaoli Cheng
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
| | - Ping Wang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
- School of Chemistry and Chemical Engineering, Qiqihar University , Qiqihar 161006, China
| | - Yingming Xu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
| | - Shan Gao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
| | - Hui Zhao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
| | - Lihua Huo
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
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44
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Ma X, Zhou X, Gong Y, Han N, Liu H, Chen Y. MOF-derived hierarchical ZnO/ZnFe2O4 hollow cubes for enhanced acetone gas-sensing performance. RSC Adv 2017. [DOI: 10.1039/c7ra04437b] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple and direct pyrolysis of FeIII modified IRMOF-3 is employed to synthesize ZnO/ZnFe2O4 hollow cubes for enhanced acetone gas sensing.
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Affiliation(s)
- Xiang Ma
- State Key Laboratory of Multiphase Complex System
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- China
| | - Xinyuan Zhou
- State Key Laboratory of Multiphase Complex System
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- China
| | - Yan Gong
- State Key Laboratory of Multiphase Complex System
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- China
| | - Ning Han
- State Key Laboratory of Multiphase Complex System
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- China
| | - Haidi Liu
- State Key Laboratory of Multiphase Complex System
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- China
| | - Yunfa Chen
- State Key Laboratory of Multiphase Complex System
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- China
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45
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Catalysis-Based Cataluminescent and Conductometric Gas Sensors: Sensing Nanomaterials, Mechanism, Applications and Perspectives. Catalysts 2016. [DOI: 10.3390/catal6120210] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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46
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Lee J, Han J, Yeo CS, Lim T, Park S, Ju S. Observation of a water droplet motion by using an oxide nanowire transistor covered by a nanofiber mesh. NANOTECHNOLOGY 2016; 27:505203. [PMID: 27841161 DOI: 10.1088/0957-4484/27/50/505203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The motion, in particular the flow speed and dropping height, of a water droplet was observed using a tin oxide (SnO2) nanowire transistor with a polyurethane (PU) nanofiber mesh as a selective filter. The changes in the SnO2 nanowire transistor characteristics, particularly the threshold voltage and on-current, were due to the adsorbed water molecules that acted as electron donors on the surface of the oxide nanowire semiconducting channel. The role of the PU nanofiber mesh, allowing the passage of water vapor while blocking liquid water, was to restrict the direct contact between the water droplet and the oxide nanowire semiconducting channel and electrodes, which could cause abnormal transistor characteristics. The selective filtering properties of the PU nanofiber mesh could be controlled by changing the number of PU layers.
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Affiliation(s)
- Jonghun Lee
- Department of Physics, Kyonggi University, Suwon, Gyeonggi-Do 443-760, Korea
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47
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Li W, Wu X, Han N, Chen J, Tang W, Chen Y. Core-shell Au@ZnO nanoparticles derived from Au@MOF and their sub-ppm level acetone gas-sensing performance. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.08.028] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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48
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Yeh LK, Luo JC, Chen MC, Wu CH, Chen JZ, Cheng IC, Hsu CC, Tian WC. A Photoactivated Gas Detector for Toluene Sensing at Room Temperature Based on New Coral-Like ZnO Nanostructure Arrays. SENSORS 2016; 16:s16111820. [PMID: 27809222 PMCID: PMC5134479 DOI: 10.3390/s16111820] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 10/23/2016] [Accepted: 10/25/2016] [Indexed: 11/16/2022]
Abstract
A photoactivated gas detector operated at room temperature was microfabricated using a simple hydrothermal method. We report that the photoactivated gas detector can detect toluene using a UV illumination of 2 μW/cm². By ultraviolet (UV) illumination, gas detectors sense toluene at room temperature without heating. A significant enhancement of detector sensitivity is achieved because of the high surface-area-to-volume ratio of the morphology of the coral-like ZnO nanorods arrays (NRAs) and the increased number of photo-induced oxygen ions under UV illumination. The corresponding sensitivity (ΔR/R₀) of the detector based on coral-like ZnO NRAs is enhanced by approximately 1022% compared to that of thin-film detectors. The proposed detector greatly extends the dynamic range of detection of metal-oxide-based detectors for gas sensing applications. We report the first-ever detection of toluene with a novel coral-like NRAs gas detector at room temperature. A sensing mechanism model is also proposed to explain the sensing responses of gas detectors based on coral-like ZnO NRAs.
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Affiliation(s)
- Li-Ko Yeh
- Graduate Institute of Electronics Engineering, National Taiwan University, Taipei City 10617, Taiwan.
| | - Jie-Chun Luo
- Graduate Institute of Electronics Engineering, National Taiwan University, Taipei City 10617, Taiwan.
| | - Min-Chun Chen
- Department of Chemical Engineering, National Taiwan University, Taipei City 10617, Taiwan.
| | - Chih-Hung Wu
- Graduate Institute of Applied Mechanics, National Taiwan University, Taipei City 10617, Taiwan.
| | - Jian-Zhang Chen
- Graduate Institute of Applied Mechanics, National Taiwan University, Taipei City 10617, Taiwan.
| | - I-Chun Cheng
- Department of Electrical Engineering, National Taiwan University, Taipei City 10617, Taiwan.
| | - Cheng-Che Hsu
- Department of Chemical Engineering, National Taiwan University, Taipei City 10617, Taiwan.
| | - Wei-Cheng Tian
- Graduate Institute of Electronics Engineering, National Taiwan University, Taipei City 10617, Taiwan.
- Department of Electrical Engineering, National Taiwan University, Taipei City 10617, Taiwan.
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei City 10617, Taiwan.
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49
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Wang L, Li J, Wang Y, Yu K, Tang X, Zhang Y, Wang S, Wei C. Construction of 1D SnO 2-coated ZnO nanowire heterojunction for their improved n-butylamine sensing performances. Sci Rep 2016; 6:35079. [PMID: 27734963 PMCID: PMC5062068 DOI: 10.1038/srep35079] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 09/23/2016] [Indexed: 11/09/2022] Open
Abstract
One-dimensional (1D) SnO2-coated ZnO nanowire (SnO2/ZnO NW) N-N heterojunctions were successfully constructed by an effective solvothermal treatment followed with calcination at 400 °C. The obtained samples were characterized by means of XRD, SEM, TEM, Scanning TEM coupled with EDS and XPS analysis, which confirmed that the outer layers of N-type SnO2 nanoparticles (avg. 4 nm) were uniformly distributed onto our pre-synthesized n-type ZnO nanowire supports (diameter 80~100 nm, length 12~16 μm). Comparisons of the gas sensing performances among pure SnO2, pure ZnO NW and the as-fabricated SnO2/ZnO NW heterojunctions revealed that after modification, SnO2/ZnO NW based sensor exhibited remarkably improved response, fast response and recovery speeds, good selectivity and excellent reproducibility to n-butylamine gas, indicating it can be used as promising candidates for high-performance organic amine sensors. The enhanced gas-sensing behavior should be attributed to the unique 1D wire-like morphology of ZnO support, the small size effect of SnO2 nanoparticles, and the semiconductor depletion layer model induced by the strong interfacial interaction between SnO2 and ZnO of the heterojunctions. The as-prepared SnO2/ZnO NW heterojunctions may also supply other novel applications in the fields like photocatalysis, lithium-ion batteries, waste water purification, and so on.
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Affiliation(s)
- Liwei Wang
- School of Marine Sciences, Guangxi University, Nanning, 530004, China.,Coral Reef Research Center of China, Guangxi University, Nanning, 530004, China
| | - Jintao Li
- Experimental Practising &Teaching center, Hebei GEO University, Shijiazhuang, 050031, China
| | - Yinghui Wang
- School of Marine Sciences, Guangxi University, Nanning, 530004, China.,Coral Reef Research Center of China, Guangxi University, Nanning, 530004, China
| | - Kefu Yu
- School of Marine Sciences, Guangxi University, Nanning, 530004, China.,Coral Reef Research Center of China, Guangxi University, Nanning, 530004, China
| | - Xingying Tang
- School of Marine Sciences, Guangxi University, Nanning, 530004, China.,Coral Reef Research Center of China, Guangxi University, Nanning, 530004, China
| | - Yuanyuan Zhang
- School of Marine Sciences, Guangxi University, Nanning, 530004, China.,Coral Reef Research Center of China, Guangxi University, Nanning, 530004, China
| | - Shaopeng Wang
- School of Marine Sciences, Guangxi University, Nanning, 530004, China.,Coral Reef Research Center of China, Guangxi University, Nanning, 530004, China
| | - Chaoshuai Wei
- School of Marine Sciences, Guangxi University, Nanning, 530004, China.,Coral Reef Research Center of China, Guangxi University, Nanning, 530004, China
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50
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Moon HG, Jung Y, Han SD, Shim YS, Shin B, Lee T, Kim JS, Lee S, Jun SC, Park HH, Kim C, Kang CY. Chemiresistive Electronic Nose toward Detection of Biomarkers in Exhaled Breath. ACS APPLIED MATERIALS & INTERFACES 2016; 8:20969-76. [PMID: 27456161 DOI: 10.1021/acsami.6b03256] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Detection of gas-phase chemicals finds a wide variety of applications, including food and beverages, fragrances, environmental monitoring, chemical and biochemical processing, medical diagnostics, and transportation. One approach for these tasks is to use arrays of highly sensitive and selective sensors as an electronic nose. Here, we present a high performance chemiresistive electronic nose (CEN) based on an array of metal oxide thin films, metal-catalyzed thin films, and nanostructured thin films. The gas sensing properties of the CEN show enhanced sensitive detection of H2S, NH3, and NO in an 80% relative humidity (RH) atmosphere similar to the composition of exhaled breath. The detection limits of the sensor elements we fabricated are in the following ranges: 534 ppt to 2.87 ppb for H2S, 4.45 to 42.29 ppb for NH3, and 206 ppt to 2.06 ppb for NO. The enhanced sensitivity is attributed to the spillover effect by Au nanoparticles and the high porosity of villi-like nanostructures, providing a large surface-to-volume ratio. The remarkable selectivity based on the collection of sensor responses manifests itself in the principal component analysis (PCA). The excellent sensing performance indicates that the CEN can detect the biomarkers of H2S, NH3, and NO in exhaled breath and even distinguish them clearly in the PCA. Our results show high potential of the CEN as an inexpensive and noninvasive diagnostic tool for halitosis, kidney disorder, and asthma.
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Affiliation(s)
- Hi Gyu Moon
- Center for Electronic Materials, Korea Institute of Science and Technology (KIST) , Seoul 136-791, Republic of Korea
- Department of Material Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea
| | - Youngmo Jung
- Department of Material Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea
- Department of Mechanical Engineering, Yonsei University , Seoul 120-749, Republic of Korea
| | - Soo Deok Han
- Center for Electronic Materials, Korea Institute of Science and Technology (KIST) , Seoul 136-791, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University , Seoul 136-701, Republic of Korea
| | - Young-Seok Shim
- Center for Electronic Materials, Korea Institute of Science and Technology (KIST) , Seoul 136-791, Republic of Korea
| | - Beomju Shin
- Sensor System Research Center, Korea Institute of Science and Technology (KIST) , Seoul 136-791, Republic of Korea
| | - Taikjin Lee
- Sensor System Research Center, Korea Institute of Science and Technology (KIST) , Seoul 136-791, Republic of Korea
| | - Jin-Sang Kim
- Center for Electronic Materials, Korea Institute of Science and Technology (KIST) , Seoul 136-791, Republic of Korea
| | - Seok Lee
- Sensor System Research Center, Korea Institute of Science and Technology (KIST) , Seoul 136-791, Republic of Korea
| | - Seong Chan Jun
- Department of Mechanical Engineering, Yonsei University , Seoul 120-749, Republic of Korea
| | - Hyung-Ho Park
- Department of Material Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea
| | - Chulki Kim
- Sensor System Research Center, Korea Institute of Science and Technology (KIST) , Seoul 136-791, Republic of Korea
| | - Chong-Yun Kang
- Center for Electronic Materials, Korea Institute of Science and Technology (KIST) , Seoul 136-791, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University , Seoul 136-701, Republic of Korea
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