1
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Metal Oxide Gas Sensors to Study Acetone Detection Considering Their Potential in the Diagnosis of Diabetes: A Review. Molecules 2023; 28:molecules28031150. [PMID: 36770820 PMCID: PMC9920687 DOI: 10.3390/molecules28031150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/12/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
Metal oxide (MOx) gas sensors have attracted considerable attention from both scientific and practical standpoints. Due to their promising characteristics for detecting toxic gases and volatile organic compounds (VOCs) compared with conventional techniques, these devices are expected to play a key role in home and public security, environmental monitoring, chemical quality control, and medicine in the near future. VOCs (e.g., acetone) are blood-borne and found in exhaled human breath as a result of certain diseases or metabolic disorders. Their measurement is considered a promising tool for noninvasive medical diagnosis, for example in diabetic patients. The conventional method for the detection of acetone vapors as a potential biomarker is based on spectrometry. However, the development of MOx-type sensors has made them increasingly attractive from a medical point of view. The objectives of this review are to assess the state of the art of the main MOx-type sensors in the detection of acetone vapors to propose future perspectives and directions that should be carried out to implement this type of sensor in the field of medicine.
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2
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Cao Z, Zhou C, Wang J, Wei G, Li T, Zhuang K. Theoretical Study of Adsorption Behavior of Dimethylamine and Ammonia on Al- and Ga-Doped BN Monolayer Surfaces Based on DFT. ACS OMEGA 2022; 7:37857-37866. [PMID: 36312343 PMCID: PMC9607678 DOI: 10.1021/acsomega.2c04963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Endogenous volatile organic compounds (VOCs) can reflect human health status and be used for clinical diagnosis and health monitoring. Dimethylamine and ammonia are the signature VOC gases of nephropathy. In order to find a potential gas sensitivity material for the detection of both signature VOC gases of nephropathy, this paper investigated the adsorption properties of dimethylamine and ammonia on Al- and Ga-doped BN monolayers based on density functional theory. Through analyzing the adsorption energy, adsorption distance, charge transfer, density of states, and HOMO/LUMO, the results indicated that the adsorption effect of Al- and Ga-doped BN monolayers to dimethylamine and ammonia is probably good, and these nanomaterials have the potential to be applied for nephropathy monitoring and clinical diagnosis.
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Affiliation(s)
- Zhengqin Cao
- College
of Electrical Engineering, Chongqing University
of Science and Technology, Chongqing401331, China
| | - Changli Zhou
- College
of Electrical Engineering, Chongqing University
of Science and Technology, Chongqing401331, China
| | - Jia Wang
- College
of medical informatics, Chongqing Medical
University, Chongqing400016, China
| | - Gang Wei
- College
of Electrical Engineering, Chongqing University
of Science and Technology, Chongqing401331, China
| | - Ting Li
- Traditional
Chinese medicine hospital of Jiulongpo district in Chongqing, Chongqing400050, China
| | - Kai Zhuang
- College
of Electrical Engineering, Chongqing University
of Science and Technology, Chongqing401331, China
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3
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Singh S, Saggu IS, Chen K, Xuan Z, Swihart MT, Sharma S. Humidity-Tolerant Room-Temperature Selective Dual Sensing and Discrimination of NH 3 and NO Using a WS 2/MWCNT Composite. ACS APPLIED MATERIALS & INTERFACES 2022; 14:40382-40395. [PMID: 36001381 DOI: 10.1021/acsami.2c09069] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Continuous detection of toxic and hazardous gases like nitric oxide (NO) and ammonia (NH3) is needed for environmental management and noninvasive diagnosis of various diseases. However, to the best of our knowledge, dual detection of these two gases has not been previously reported. To address the challenge, we demonstrate the design and fabrication of low-cost NH3 and NO dual gas sensors using tungsten disulfide/multiwall carbon nanotube (WS2/MWCNT) nanocomposites as sensing channels which maintained their performance in a humid environment. The composite-based device has shown successful dual detection at temperatures down to 18 °C and relative humidity of 90%. For 0.1 ppm ammonia, it exhibited a p-type conduction with response and recovery times of 102 and 261 s, respectively; on the other hand, with NO (10 ppb, n-type), these times were 285 and 198 s, respectively. The device with 5 mg MWCNTs possesses a superior selectivity along with a relative response of ≈7% (5 ppb) and ≈5% (0.1 ppm) for NO and NH3, respectively, at 18 °C. The response is less affected by relative humidity, and this is attributed to the presence of MWCNTs that are hydrophobic in nature. Upon simultaneous exposure to NO (5-10 ppb) and NH3 (0.1-5 ppm), the response was dominated by NO, implying clear discrimination to the simultaneous presence of these two gases. We propose a sensing mechanism based on adsorption/desportion and accompanied charge transfer between the adsorbed gas molecules and sensing surface. The results suggest that an optimized weight ratio of WS2 and MWCNTs could govern favorable sensing conditions for a particular gas molecule.
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Affiliation(s)
- Sukhwinder Singh
- Department of Physics, Guru Nanak Dev University Amritsar, Punjab-143005, India
| | - Imtej Singh Saggu
- Department of Physics, Guru Nanak Dev University Amritsar, Punjab-143005, India
| | - Kaiwen Chen
- Department of Chemical and Biological Engineering, University at Buffalo (SUNY), Buffalo, New York 14260, United States
| | - Zhengxi Xuan
- Department of Chemical and Biological Engineering, University at Buffalo (SUNY), Buffalo, New York 14260, United States
| | - Mark T Swihart
- Department of Chemical and Biological Engineering, University at Buffalo (SUNY), Buffalo, New York 14260, United States
| | - Sandeep Sharma
- Department of Physics, Guru Nanak Dev University Amritsar, Punjab-143005, India
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4
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Kaloumenou M, Skotadis E, Lagopati N, Efstathopoulos E, Tsoukalas D. Breath Analysis: A Promising Tool for Disease Diagnosis-The Role of Sensors. SENSORS (BASEL, SWITZERLAND) 2022; 22:1238. [PMID: 35161984 PMCID: PMC8840008 DOI: 10.3390/s22031238] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/30/2022] [Accepted: 02/01/2022] [Indexed: 05/07/2023]
Abstract
Early-stage disease diagnosis is of particular importance for effective patient identification as well as their treatment. Lack of patient compliance for the existing diagnostic methods, however, limits prompt diagnosis, rendering the development of non-invasive diagnostic tools mandatory. One of the most promising non-invasive diagnostic methods that has also attracted great research interest during the last years is breath analysis; the method detects gas-analytes such as exhaled volatile organic compounds (VOCs) and inorganic gases that are considered to be important biomarkers for various disease-types. The diagnostic ability of gas-pattern detection using analytical techniques and especially sensors has been widely discussed in the literature; however, the incorporation of novel nanomaterials in sensor-development has also proved to enhance sensor performance, for both selective and cross-reactive applications. The aim of the first part of this review is to provide an up-to-date overview of the main categories of sensors studied for disease diagnosis applications via the detection of exhaled gas-analytes and to highlight the role of nanomaterials. The second and most novel part of this review concentrates on the remarkable applicability of breath analysis in differential diagnosis, phenotyping, and the staging of several disease-types, which are currently amongst the most pressing challenges in the field.
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Affiliation(s)
- Maria Kaloumenou
- Department of Applied Physics, National Technical University of Athens, 15780 Athens, Greece; (M.K.); (D.T.)
| | - Evangelos Skotadis
- Department of Applied Physics, National Technical University of Athens, 15780 Athens, Greece; (M.K.); (D.T.)
| | - Nefeli Lagopati
- Medical School, National and Kapodistrian University of Athens, 75, Mikras Asias Str., Goudi, 11527 Athens, Greece; (N.L.); (E.E.)
| | - Efstathios Efstathopoulos
- Medical School, National and Kapodistrian University of Athens, 75, Mikras Asias Str., Goudi, 11527 Athens, Greece; (N.L.); (E.E.)
| | - Dimitris Tsoukalas
- Department of Applied Physics, National Technical University of Athens, 15780 Athens, Greece; (M.K.); (D.T.)
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5
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Dai J, Li L, Shi B, Li Z. Recent progress of self-powered respiration monitoring systems. Biosens Bioelectron 2021; 194:113609. [PMID: 34509719 DOI: 10.1016/j.bios.2021.113609] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/26/2021] [Accepted: 08/31/2021] [Indexed: 11/15/2022]
Abstract
Wearable and implantable medical devices are playing more and more key roles in disease diagnosis and health management. Various biosensors and systems have been used for respiration monitoring. Among them, self-powered sensors have some special characteristics such as low-cost, easy preparation, highly designable, and diversified. The respiratory airflow can drive the self-powered sensors directly to convert mechanical energy of the airflow into electricity. One of the major goals of the self-powered sensors and systems is realizing health monitoring and diagnosis. The relationship between the output signals and the models of respiratory diseases has not been studied deeply and clearly. Therefore, how to find an accurate relationship between them is a challenging and significant research topic. This review summarized the recent progress of the self-powered respiratory sensors and systems from aspects of device principle, output property, detecting index and so on. The challenges and perspectives have also been discussed for reference to the researchers who are interested in the field of self-powered sensors.
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Affiliation(s)
- Jieyu Dai
- College of Chemistry and Chemical Engineering, Center on Nanoenergy Research, Guangxi University, 530004, Nanning, China; Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 101400, Beijing, China
| | - Linlin Li
- College of Chemistry and Chemical Engineering, Center on Nanoenergy Research, Guangxi University, 530004, Nanning, China; Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 101400, Beijing, China
| | - Bojing Shi
- Beijing Advanced Innovation Centre for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China.
| | - Zhou Li
- College of Chemistry and Chemical Engineering, Center on Nanoenergy Research, Guangxi University, 530004, Nanning, China; Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 101400, Beijing, China.
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6
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López-Lorente CI, Awchi M, Sinues P, García-Gómez D. Real-time pharmacokinetics via online analysis of exhaled breath. J Pharm Biomed Anal 2021; 205:114311. [PMID: 34403867 DOI: 10.1016/j.jpba.2021.114311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/24/2021] [Accepted: 08/04/2021] [Indexed: 11/26/2022]
Abstract
The advantages that on-line breath analysis has shown in different fields have already made it stand as an interesting tool for pharmacokinetic studies. This review summarizes recent progress in the field, diving into the different analytical methods and the different advantages and hurdles encountered. We conclude that there is a wealth of limitations in the application of this technique, and key aspects like standardization are still outstanding. Nevertheless, this is an experimental field that has not yet been fully explored; and the advantages it offers for animal welfare, decrease in the amount of drug needed in experimental studies, and complementary insights to current pharmacological studies, warrant further exploration. Further studies are needed to overcome current limitations and incorporate this technique into the toolbox of pharmacological studies, both at an industrial and academic level.
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Affiliation(s)
| | - Mo Awchi
- University Children's Hospital Basel, University of Basel, Basel, Switzerland; Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Pablo Sinues
- University Children's Hospital Basel, University of Basel, Basel, Switzerland; Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Diego García-Gómez
- Department of Analytical Chemistry, University of Salamanca, Salamanca, Spain.
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7
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González E, Casanova-Chafer J, Alagh A, Romero A, Vilanova X, Acosta S, Cossement D, Bittencourt C, Llobet E. On the Use of Pulsed UV or Visible Light Activated Gas Sensing of Reducing and Oxidising Species with WO 3 and WS 2 Nanomaterials. SENSORS 2021; 21:s21113736. [PMID: 34072115 PMCID: PMC8199237 DOI: 10.3390/s21113736] [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: 04/10/2021] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 12/02/2022]
Abstract
This paper presents a methodology to quantify oxidizing and reducing gases using n-type and p-type chemiresistive sensors, respectively. Low temperature sensor heating with pulsed UV or visible light modulation is used together with the application of the fast Fourier transform (FFT) to extract sensor response features. These features are further processed via principal component analysis (PCA) and principal component regression (PCR) for achieving gas discrimination and building concentration prediction models with R2 values up to 98% and RMSE values as low as 5% for the total gas concentration range studied. UV and visible light were used to study the influence of the light wavelength in the prediction model performance. We demonstrate that n-type and p-type sensors need to be used together for achieving good quantification of oxidizing and reducing species, respectively, since the semiconductor type defines the prediction model’s effectiveness towards an oxidizing or reducing gas. The presented method reduces considerably the total time needed to quantify the gas concentration compared with the results obtained in a previous work. The use of visible light LEDs for performing pulsed light modulation enhances system performance and considerably reduces cost in comparison to previously reported UV light-based approaches.
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Affiliation(s)
- Ernesto González
- Electronic Engineering, Uiversitat Rovira i Virgili, 43007 Tarragona, Spain; (E.G.); (J.C.-C.); (A.A.); (A.R.); (E.L.)
| | - Juan Casanova-Chafer
- Electronic Engineering, Uiversitat Rovira i Virgili, 43007 Tarragona, Spain; (E.G.); (J.C.-C.); (A.A.); (A.R.); (E.L.)
| | - Aanchal Alagh
- Electronic Engineering, Uiversitat Rovira i Virgili, 43007 Tarragona, Spain; (E.G.); (J.C.-C.); (A.A.); (A.R.); (E.L.)
| | - Alfonso Romero
- Electronic Engineering, Uiversitat Rovira i Virgili, 43007 Tarragona, Spain; (E.G.); (J.C.-C.); (A.A.); (A.R.); (E.L.)
| | - Xavier Vilanova
- Electronic Engineering, Uiversitat Rovira i Virgili, 43007 Tarragona, Spain; (E.G.); (J.C.-C.); (A.A.); (A.R.); (E.L.)
- Correspondence: ; Tel.: +34-977-558-502
| | - Selene Acosta
- Chimie des Interactions Plasma e Surface (ChIPS), Research Institute for Materials Science and Engineering, Université de Mons, 7000 Mons, Belgium; (S.A.); (C.B.)
| | | | - Carla Bittencourt
- Chimie des Interactions Plasma e Surface (ChIPS), Research Institute for Materials Science and Engineering, Université de Mons, 7000 Mons, Belgium; (S.A.); (C.B.)
| | - Eduard Llobet
- Electronic Engineering, Uiversitat Rovira i Virgili, 43007 Tarragona, Spain; (E.G.); (J.C.-C.); (A.A.); (A.R.); (E.L.)
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8
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Hue NT, Wu Q, Liu W, Bu X, Wu H, Wang C, Li X, Wang X. Graphene oxide/graphene hybrid film with ultrahigh ammonia sensing performance. NANOTECHNOLOGY 2021; 32:115501. [PMID: 33271525 DOI: 10.1088/1361-6528/abd05a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this paper, a novel ammonia detection hybrid film is proposed based on a graphene oxide (GO)/graphene stack, which shows excellent sensing characteristics at room temperature. It is attributed to the cooperation of GO layer serving as molecular capture layer while graphene serving as conductive layer. GO layer is obtained on chemical vapor deposited graphene film by a simple drop-casting method. The prepared GO/graphene hybrid film is directly transferred to the target substrate without any additional transfer vehicle to reduce possible contamination. The success of the transfer depends on the mechanical strength of GO layer. The thickness of GO layer can scale down to 55 nm while sustaining the transfer process. The best ammonia gas sensing performance is obtained at about 275 nm GO layer thickness and the ammonia detection limit is calculated to be 1.5 ppb. In conclusion, the ammonia gas sensing performance of GO/graphene hybrid film can be significantly improved through GO layer thickness optimization.
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Affiliation(s)
- Nguyen The Hue
- Department of Microelectronics, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Qiang Wu
- Department of Microelectronics, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Weihua Liu
- Department of Microelectronics, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Xiangrui Bu
- Department of Microelectronics, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Haiyang Wu
- Department of Microelectronics, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Chang Wang
- Department of Microelectronics, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Xin Li
- Department of Microelectronics, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Xiaoli Wang
- Department of Microelectronics, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
- School of Science, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
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9
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Abstract
Colorimetric sensing technologies have been widely used for both quantitative detection of specific analyte and recognition of a large set of analytes in gas phase, ranging from environmental chemicals to biomarkers in breath. However, the accuracy and reliability of the colorimetric gas sensors are threatened by the humidity interference in different application scenarios. Though substantial progress has been made toward new colorimetric sensors development, unless the humidity interference is well addressed, the colorimetric sensors cannot be deployed for real-world applications. Although there are comprehensive and insightful review articles about the colorimetric gas sensors, they have focused more on the progress in new sensing materials, new sensing systems, and new applications. There is a need for reviewing the works that have been done to solve the humidity issue, a challenge that the colorimetric gas sensors commonly face. In this review paper, we analyzed the mechanisms of the humidity interference and discussed the approaches that have been reported to mitigate the humidity interference in colorimetric sensing of environmental gases and breath biomarkers. Finally, the future perspectives of colorimetric sensing technologies are also discussed.
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Affiliation(s)
- Jingjing Yu
- Center for Bioelectronics and Biosensors, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Di Wang
- Center for Bioelectronics and Biosensors, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Vishal Varun Tipparaju
- Center for Bioelectronics and Biosensors, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Francis Tsow
- Center for Bioelectronics and Biosensors, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Xiaojun Xian
- Center for Bioelectronics and Biosensors, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
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10
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Chen X, Hu R, Hu L, Huang Y, Shi W, Wei Q, Li Z. Portable Analytical Techniques for Monitoring Volatile Organic Chemicals in Biomanufacturing Processes: Recent Advances and Limitations. Front Chem 2020; 8:837. [PMID: 33024746 PMCID: PMC7516303 DOI: 10.3389/fchem.2020.00837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/10/2020] [Indexed: 12/19/2022] Open
Abstract
It is essential to develop effective analytical techniques for accurate and continuous monitoring of various biomanufacturing processes, such as the production of monoclonal antibodies and vaccines, through sensitive and quantitative detection of characteristic aqueous or gaseous metabolites and other analytes in the cell culture media. A comprehensive summary toward the use of mainstream techniques for bioprocess monitoring is critically reviewed here, which illustrates the instrumental and procedural advances and limitations of several major analytical tools in biomanufacturing applications. Despite those drawbacks present in modern detection systems such as mass spectrometry, gas chromatography or chemical/biological sensors, a considerable number of useful solutions and inspirations such as electronic or optoelectronic noses can be offered to greatly overcome the restrictions and facilitate the development of advanced analytical techniques that can target a more diverse range of key nutritious components, products or potential contaminants in different biomanufacturing processes.
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Affiliation(s)
- Xiaofeng Chen
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Runmen Hu
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Luoyu Hu
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Yingcan Huang
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Wenyang Shi
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Qingshan Wei
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, United States
| | - Zheng Li
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
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11
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Pargoletti E, Hossain UH, Di Bernardo I, Chen H, Tran-Phu T, Chiarello GL, Lipton-Duffin J, Pifferi V, Tricoli A, Cappelletti G. Engineering of SnO 2-Graphene Oxide Nanoheterojunctions for Selective Room-Temperature Chemical Sensing and Optoelectronic Devices. ACS APPLIED MATERIALS & INTERFACES 2020; 12:39549-39560. [PMID: 32696650 PMCID: PMC8009473 DOI: 10.1021/acsami.0c09178] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/22/2020] [Indexed: 05/29/2023]
Abstract
The development of high-performing sensing materials, able to detect ppb-trace concentrations of volatile organic compounds (VOCs) at low temperatures, is required for the development of next-generation miniaturized wireless sensors. Here, we present the engineering of selective room-temperature (RT) chemical sensors, comprising highly porous tin dioxide (SnO2)-graphene oxide (GO) nanoheterojunction layouts. The optoelectronic and chemical properties of these highly porous (>90%) p-n heterojunctions were systematically investigated in terms of composition and morphologies. Optimized SnO2-GO layouts demonstrate significant potential as both visible-blind photodetectors and selective RT chemical sensors. Notably, a low GO content results in an excellent UV light responsivity (400 A W-1), with short rise and decay times, and RT high chemical sensitivity with selective detection of VOCs such as ethanol down to 100 ppb. In contrast, a high concentration of GO drastically decreases the RT response to ethanol and results in good selectivity to ethylbenzene. The feasibility of tuning the chemical selectivity of sensor response by engineering the relative amount of GO and SnO2 is a promising feature that may guide the future development of miniaturized solid-state gas sensors. Furthermore, the excellent optoelectronic properties of these SnO2-GO nanoheterojunctions may find applications in various other areas such as optoelectronic devices and (photo)electrocatalysis.
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Affiliation(s)
- Eleonora Pargoletti
- Dipartimento
di Chimica, Università degli Studi
di Milano, via Golgi 19, Milano 20133, Italy
- Consorzio
Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali
(INSTM), Via Giusti 9, Firenze 50121, Italy
| | - Umme H. Hossain
- Department
of Electronic Materials Engineering, Research School of Physics and
Engineering, The Australian National University, Canberra Australian Capital Territory 2601, Australia
| | - Iolanda Di Bernardo
- Nanotechnology
Research Laboratory, College of Engineering and Computer Science, The Australian National University, Canberra Australian Capital Territory 2601, Australia
| | - Hongjun Chen
- Nanotechnology
Research Laboratory, College of Engineering and Computer Science, The Australian National University, Canberra Australian Capital Territory 2601, Australia
| | - Thanh Tran-Phu
- Nanotechnology
Research Laboratory, College of Engineering and Computer Science, The Australian National University, Canberra Australian Capital Territory 2601, Australia
| | - Gian Luca Chiarello
- Dipartimento
di Chimica, Università degli Studi
di Milano, via Golgi 19, Milano 20133, Italy
| | - Josh Lipton-Duffin
- Institute
for Future Environments (IFE), Central Analytical Research Facility
(CARF), Queensland University of Technology(QUT), Brisbane 4000, Australia
| | - Valentina Pifferi
- Dipartimento
di Chimica, Università degli Studi
di Milano, via Golgi 19, Milano 20133, Italy
- Consorzio
Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali
(INSTM), Via Giusti 9, Firenze 50121, Italy
| | - Antonio Tricoli
- Nanotechnology
Research Laboratory, College of Engineering and Computer Science, The Australian National University, Canberra Australian Capital Territory 2601, Australia
| | - Giuseppe Cappelletti
- Dipartimento
di Chimica, Università degli Studi
di Milano, via Golgi 19, Milano 20133, Italy
- Consorzio
Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali
(INSTM), Via Giusti 9, Firenze 50121, Italy
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12
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Abstract
PURPOSE OF REVIEW The long-term management goals of the inflammatory airway diseases asthma and chronic obstructive pulmonary disease (COPD) are similar and focus on symptom control and reduction of exacerbation frequency and severity. Treatable traits have recently been postulated as a management concept which complements the traditional diagnostic labels 'asthma' and 'COPD', thereby focusing on therapy targeted to a patients' individual disease-associated characteristics. Exhaled volatile organic compounds (VOCs) may be utilized as noninvasive biomarker for disease activity or manifestation in asthma and COPD. In this review, we provide an overview of the current achievements concerning exhaled breath analysis in the field of uncontrolled chronic airways diseases. RECENT FINDINGS Monitoring of (airway) inflammation and identification of (molecular) phenotypic characteristics in asthma and COPD through exhaled VOC analysis by either mass spectrometry (MS) based or sensor-driven electronic nose technology (eNose) seems to be feasible, however pending confirmation could hamper the valorization of breathomics into clinical tests. SUMMARY Exhaled VOC analysis and the management of asthma and COPD through the concept of pulmonary treatable traits are an interesting match. To develop exhaled breath analysis into an added value for pulmonary treatable traits, multicentre studies are required following international standards for study populations, sampling methods and analytical strategies enabling external validation.
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13
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Bhardwaj R, Selamneni V, Thakur UN, Sahatiya P, Hazra A. Detection and discrimination of volatile organic compounds by noble metal nanoparticle functionalized MoS2 coated biodegradable paper sensors. NEW J CHEM 2020. [DOI: 10.1039/d0nj03491f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In the current study, noble metal nanoparticle functionalized MoS2 coated biodegradable low-cost paper sensors were fabricated for the selective detection of low concentrations of volatile organic compounds (VOCs).
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Affiliation(s)
- Radha Bhardwaj
- Dept. of Electrical & Electronics Engineering
- BITS Pilani
- Pilani Campus
- India
| | | | | | - Parikshit Sahatiya
- Dept. of Electrical & Electronics Engineering
- BITS Pilani
- Hyderabad Campus
- India
| | - Arnab Hazra
- Dept. of Electrical & Electronics Engineering
- BITS Pilani
- Pilani Campus
- India
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14
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TSUDA T, NONOME T, GOTO S, TAKEDA JI, TSUNODA M, HIRAYAMA M, OHNO K. Application of Skin Gas GC/MS Analysis for Prediction of the Severity Scale of Parkinson’s Disease. CHROMATOGRAPHY 2019. [DOI: 10.15583/jpchrom.2019.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | | | - Sae GOTO
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine
| | - Jun-ichi TAKEDA
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine
| | - Makoto TSUNODA
- Graduate School of Pharmaceutical Sciences, University of Tokyo
| | - Masaaki HIRAYAMA
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine
| | - Kinji OHNO
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine
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15
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Azim A, Barber C, Dennison P, Riley J, Howarth P. Exhaled volatile organic compounds in adult asthma: a systematic review. Eur Respir J 2019; 54:13993003.00056-2019. [PMID: 31273044 DOI: 10.1183/13993003.00056-2019] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 06/13/2019] [Indexed: 12/11/2022]
Abstract
The search for biomarkers that can guide precision medicine in asthma, particularly those that can be translated to the clinic, has seen recent interest in exhaled volatile organic compounds (VOCs). Given the number of studies reporting "breathomics" findings and its growing integration in clinical trials, we performed a systematic review of the literature to summarise current evidence and understanding of breathomics technology in asthma.A PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses)-oriented systematic search was performed (CRD42017084145) of MEDLINE, Embase and the Cochrane databases to search for any reports that assessed exhaled VOCs in adult asthma patients, using the following terms (asthma AND (volatile organic compounds AND exhaled) OR breathomics).Two authors independently determined the eligibility of 2957 unique records, of which 66 underwent full-text review. Data extraction and risk of bias assessment was performed on the 22 studies deemed to fulfil the search criteria. The studies are described in terms of methodology and the evidence narratively summarised under the following clinical headings: diagnostics, phenotyping, treatment stratification, treatment monitoring and exacerbation prediction/assessment.Our review found that most studies were designed to assess diagnostic potential rather than focus on underlying biology or treatable traits. Results are generally limited by a lack of methodological standardisation and external validation and by insufficiently powered studies, but there is consistency across the literature that exhaled VOCs are sensitive to underlying inflammation. Modern studies are applying robust breath analysis workflows to large multi-centre study designs, which should unlock the full potential of measurement of exhaled volatile organic compounds in airways diseases such as asthma.
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Affiliation(s)
- Adnan Azim
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK .,National Institute for Health Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Clair Barber
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK.,National Institute for Health Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Paddy Dennison
- National Institute for Health Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - John Riley
- Galaxy Asthma, GSK, Medicines Research Centre, Stevenage, UK
| | - Peter Howarth
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK.,National Institute for Health Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
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16
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Zhu P, Li S, Jiang X, Wang Q, Fan F, Yan M, Zhang Y, Zhao P, Yu J. Noninvasive and Wearable Respiration Sensor Based on Organic Semiconductor Film with Strong Electron Affinity. Anal Chem 2019; 91:10320-10327. [PMID: 31267731 DOI: 10.1021/acs.analchem.9b02811] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Interventional medical detection techniques require expensive devices and cause inconvenience and discomfort to the human body, which restricts their application to the frequency and duration of measurements. A noninvasive respiration test is urgently required for the next-generation medical technologies in early disease warning and postoperative monitoring. This article describes a noninvasive and wearable sensing device that shows high sensitivity toward acetone in respiratory gases with excellent stability, low energy consumption, and reliable flexibility. To obtain such a sensor, the organic semiconductor compound La(TBPP)(TBNc) (TBPP = tetrakis(4-tert-butylphenyl)porphyrin; TBNc = tetrakis(4-tert-butylphenyl)naphthalocyanine) was synthesized and further self-assembled into a highly ordered flexible film via a simple solution-vapor annealing method. The fabricated flexible film was deposited on an interdigitated electrode with poly(ethylene terephthalate) substrate and employed as an electrical identification component for a respiration sensor. Thanks to the attractive electron-transfer properties of highly ordered films and strong electron affinity of La(TBPP)(TBNc) molecules, the as-prepared sensor shows a low detection limit (200 ppb) and acceptable selectivity. The wrinkled/rippled structure of films endows the fabricated sensors with the ability of mechanical flexibility. More importantly, the experimental results suggest the potential application of acetone identification in real respiratory gases and provide a new concept for the development of noninvasive and wearable medical diagnostic devices.
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Affiliation(s)
- Peihua Zhu
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Shanshan Li
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Xinyue Jiang
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Qian Wang
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Fuqing Fan
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials , University of Jinan , Jinan 250022 , People's Republic of China
| | - Mei Yan
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Yan Zhang
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China.,Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials , University of Jinan , Jinan 250022 , People's Republic of China
| | - Peini Zhao
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
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17
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Kalidoss R, Umapathy S. A comparison of online and offline measurement of exhaled breath for diabetes pre-screening by graphene-based sensor; from powder processing to clinical monitoring prototype. J Breath Res 2019; 13:036008. [PMID: 30794992 DOI: 10.1088/1752-7163/ab09ae] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Several breath analysis studies have suggested a correlation between blood glucose (BG) levels and breath acetone, indicating acetone as a primary biomarker in exhaled breath for diabetes diagnosis. Herein, we have (i) fabricated and validated graphene-based chemi-resistive sensors for selective and sensitive detection of acetone, (ii) performed offline breath analysis by a static gas sensing set-up to acquire olfactory signals, and (iii) developed an LED-based portable on/off binary e-nose system for pre-screening diabetes through online analysis. The fabricated sensors showed selective detection for acetone with high sensitivity (5.66 for 1 ppm acetone vapor) and fast response and recovery times (10 s and 12 s) at low concentrations. The sensor responses of end tidal fractional breath (collected in Tedlar bags) in the fasting and postprandial conditions were compared with BG levels and glycated hemoglobin (HbA1c) levels taken at the same time in 30 volunteers (13 healthy and 17 diabetic subjects). The mean sensor responses of the diabetic subjects as obtained by offline analysis were 1.1 times higher than those of the healthy subjects. The optimal regression equation framed with the significant correlating variables for HbA1c estimation achieved an accuracy of 66.67%. The online breath analysis by on/off binary prototype exhibited an accuracy of 60.51%. Though there exists a minimal uncertainty in classification, the on/off type portable prototype is easy to operate, gives a quicker response with a refresh/recovery rate of 19 s and can be used for preliminary diagnosis, and can be used for preliminary diagnosis. This inexpensive sensor technology may revolutionize personalized medicine in the near future and greatly benefit the underprivileged.
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Affiliation(s)
- Ramji Kalidoss
- Department of Biomedical Engineering, SRM Institute of Science & Technology, Tamil Nadu, 603203, India
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18
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Influence of Water Molecules on the Detection of Volatile Organic Compounds (VOC) Cancer Biomarkers by Nanocomposite Quantum Resistive Vapor Sensors vQRS. CHEMOSENSORS 2018. [DOI: 10.3390/chemosensors6040064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The anticipated diagnosis of various fatal diseases from the analysis of volatile organic compounds (VOC) biomarkers of the volatolome is the object of very dynamic research. Nanocomposite-based quantum resistive vapor sensors (vQRS) exhibit strong advantages in the detection of biomarkers, as they can operate at room temperature with low consumption and sub ppm (part per million) sensitivity. However, to meet this application they need to detect some ppm or less amounts of biomarkers in patients' breath, skin, or urine in complex blends of numerous VOC, most of the time hindered by a huge amount of water molecules. Therefore, it is crucial to analyze the effects of moisture on the chemo-resistive sensing behavior of carbon nanotubes based vQRS. We show that in the presence of water molecules, the sensors cannot detect the right amount of VOC molecules present in their environment. These perturbations of the detection mechanism are found to depend on the chemical interactions between water and other VOC molecules, but also on their competitive absorption on sensors receptive sites, located at the nanojunctions of the conductive architecture. This complex phenomenon studied with down to 12.5 ppm of acetone, ethanol, butanone, toluene, and cyclohexane mixed with 100 ppm of water was worth to investigate in the prospect of future developments of devices analysing real breath samples in which water can reach a concentration of 6%.
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19
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Li Z, Askim JR, Suslick KS. The Optoelectronic Nose: Colorimetric and Fluorometric Sensor Arrays. Chem Rev 2018; 119:231-292. [DOI: 10.1021/acs.chemrev.8b00226] [Citation(s) in RCA: 476] [Impact Index Per Article: 79.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zheng Li
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Jon R. Askim
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Kenneth S. Suslick
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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20
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Ksenofontov AA, Guseva GB, Stupikova SA, Antina EV. Novel Zinc(II) Bis(Dipyrromethenate)-Doped Ethyl Cellulose Sensors for Acetone Vapor Fluorescence Detection. J Fluoresc 2018; 28:477-482. [PMID: 29682675 DOI: 10.1007/s10895-018-2220-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 03/12/2018] [Indexed: 12/16/2022]
Abstract
In this paper, we report on the results of spectrofluorimetric study of new fluorescent sensor based on [Zn2L2] doped in ethyl cellulose. The sensor optical signal is based on the rapid fluorescence quenching in the presence of acetone vapor. The acetone vapor detection limit in a gas mixture by means of sensor based on [Zn2L2] doped in ethyl cellulose is 1.68 ppb. Being highly sensitive to the acetone acetone presence, instant in response and easy to use, the sensor can find an application for the noninvasive diagnostics of diabetes as well as for the monitoring of the content of acetone acetone in the air at industrial and laboratory facilities. Graphical Abstract.
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Affiliation(s)
- Alexander A Ksenofontov
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Street, 153045, Ivanovo, Russia.
| | - Galina B Guseva
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Street, 153045, Ivanovo, Russia
| | - Svetlana A Stupikova
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Street, 153045, Ivanovo, Russia
- Ivanovo State University of Chemistry and Technology, 7, Sheremetievskiy Avenue, Ivanovo, 153000, Russia
| | - Elena V Antina
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Street, 153045, Ivanovo, Russia
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21
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Turi KN, Romick-Rosendale L, Ryckman KK, Hartert TV. A review of metabolomics approaches and their application in identifying causal pathways of childhood asthma. J Allergy Clin Immunol 2018; 141:1191-1201. [PMID: 28479327 PMCID: PMC5671382 DOI: 10.1016/j.jaci.2017.04.021] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 03/08/2017] [Accepted: 04/13/2017] [Indexed: 12/20/2022]
Abstract
Because asthma is a disease that results from host-environment interactions, an approach that allows assessment of the effect of the environment on the host is needed to understand the disease. Metabolomics has appealing potential as an application to study pathways to childhood asthma development. The objective of this review is to provide an overview of metabolomics methods and their application to understanding host-environment pathways in asthma development. We reviewed recent literature on advances in metabolomics and their application to study pathways to childhood asthma development. We highlight the (1) potential of metabolomics in understanding the pathogenesis of disease and the discovery of biomarkers; (2) choice of metabolomics techniques, biospecimen handling, and data analysis; (3) application to studying the role of the environment on asthma development; (4) review of metabolomics applied to the outcome of asthma; (5) recommendations for application of metabolomics-based -omics data integration in understanding disease pathogenesis; and (6) limitations. In conclusion, metabolomics allows use of biospecimens to identify useful biomarkers and pathways involved in disease development and subsequently to inform a greater understanding of disease pathogenesis and endotypes and prediction of the clinical course of childhood asthma phenotypes.
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Affiliation(s)
- Kedir N Turi
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tenn
| | - Lindsey Romick-Rosendale
- Division of Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Kelli K Ryckman
- Departments of Epidemiology and Pediatrics, College of Public Health and Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Tina V Hartert
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tenn.
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22
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Yucel M, Akin O, Cayoren M, Akduman I, Palaniappan A, Liedberg B, Hizal G, Inci F, Yildiz UH. Hand-Held Volatilome Analyzer Based on Elastically Deformable Nanofibers. Anal Chem 2018; 90:5122-5129. [DOI: 10.1021/acs.analchem.7b05187] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Muge Yucel
- Department of Biotechnology and Bioengineering, Izmir Institute of Technology, Izmir 35430, Turkey
| | - Osman Akin
- Department of Mechatronic Engineering, Izmir Katip Çelebi University, Izmir 35640, Turkey
| | - Mehmet Cayoren
- Department of Electronic and Communication, Istanbul Technical University, Istanbul 34398, Turkey
| | - Ibrahim Akduman
- Department of Electronic and Communication, Istanbul Technical University, Istanbul 34398, Turkey
| | - Alagappan Palaniappan
- Center for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 637553 Singapore
| | - Bo Liedberg
- Center for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 637553 Singapore
| | - Gurkan Hizal
- Department of Chemistry, Istanbul Technical University, Istanbul 34398, Turkey
| | - Fatih Inci
- Department of Radiology, Stanford University, School of Medicine, Canary Center at Stanford for Cancer Early Detection, Palo Alto, California 94304, United States
| | - Umit Hakan Yildiz
- Department of Chemistry, Izmir Institute of Technology, Izmir 35430, Turkey
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23
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Galstyan V. Porous TiO₂-Based Gas Sensors for Cyber Chemical Systems to Provide Security and Medical Diagnosis. SENSORS 2017; 17:s17122947. [PMID: 29257076 PMCID: PMC5751595 DOI: 10.3390/s17122947] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/13/2017] [Accepted: 12/17/2017] [Indexed: 12/31/2022]
Abstract
Gas sensors play an important role in our life, providing control and security of technical processes, environment, transportation and healthcare. Consequently, the development of high performance gas sensor devices is the subject of intense research. TiO2, with its excellent physical and chemical properties, is a very attractive material for the fabrication of chemical sensors. Meanwhile, the emerging technologies are focused on the fabrication of more flexible and smart systems for precise monitoring and diagnosis in real-time. The proposed cyber chemical systems in this paper are based on the integration of cyber elements with the chemical sensor devices. These systems may have a crucial effect on the environmental and industrial safety, control of carriage of dangerous goods and medicine. This review highlights the recent developments on fabrication of porous TiO2-based chemical gas sensors for their application in cyber chemical system showing the convenience and feasibility of such a model to provide the security and to perform the diagnostics. The most of reports have demonstrated that the fabrication of doped, mixed and composite structures based on porous TiO2 may drastically improve its sensing performance. In addition, each component has its unique effect on the sensing properties of material.
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Affiliation(s)
- Vardan Galstyan
- Sensor Lab, Department of Information Engineering, University of Brescia, Via Valotti 9, 25133 Brescia, Italy.
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24
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Nag S, Castro M, Choudhary V, Feller JF. Sulfonated poly(ether ether ketone) [SPEEK] nanocomposites based on hybrid nanocarbons for the detection and discrimination of some lung cancer VOC biomarkers. J Mater Chem B 2016; 5:348-359. [PMID: 32263553 DOI: 10.1039/c6tb02583h] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The analysis of a volatolome is a promising approach to allow the early diagnosis of diseases such as cancers. However, one important challenge is to take the chemical fingerprint of the complex blend of volatiles, for many of them only present at the sub-ppm level. We have investigated a facile route to differentiate the chemo-resistive behaviour of quantum resistive vapour sensors (vQRS) and provide them with a strong methanol selectivity by simply changing the sulfonation degree of poly(ether ether ketone) up to 85%. The hybridization of carbon nanotubes (CNTs) with fullerene (C60) structured in a 3D architecture by spray layer-by-layer (sLbL) has allowed us to boost significantly the sensitivity of sensors to reach the sub-ppm level (340 ppb). After their integration into an e-nose, PEEK-nanocarbon sensors were found to effectively discriminate both single and binary mixtures of volatile organic compounds (VOCs) and among all biomarkers to detect preferentially methanol with a high signal to noise ratio (200).
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Affiliation(s)
- Sananda Nag
- Smart Plastics Group, Bretagne Loire University (UBL), IRDL CNRS 3744 - UBS, Lorient, France.
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25
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Barash O, Zhang W, Halpern JM, Hua QL, Pan YY, Kayal H, Khoury K, Liu H, Davies MPA, Haick H. Differentiation between genetic mutations of breast cancer by breath volatolomics. Oncotarget 2016; 6:44864-76. [PMID: 26540569 PMCID: PMC4792597 DOI: 10.18632/oncotarget.6269] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 10/10/2015] [Indexed: 01/26/2023] Open
Abstract
Mapping molecular sub-types in breast cancer (BC) tumours is a rapidly evolving area due to growing interest in, for example, targeted therapy and screening high-risk populations for early diagnosis. We report a new concept for profiling BC molecular sub-types based on volatile organic compounds (VOCs). For this purpose, breath samples were collected from 276 female volunteers, including healthy, benign conditions, ductal carcinoma in situ (DCIS) and malignant lesions. Breath samples were analysed by gas chromatography mass spectrometry (GC-MS) and artificially intelligent nanoarray technology. Applying the non-parametric Wilcoxon/Kruskal-Wallis test, GC-MS analysis found 23 compounds that were significantly different (p < 0.05) in breath samples of BC patients with different molecular sub-types. Discriminant function analysis (DFA) of the nanoarray identified unique volatolomic signatures between cancer and non-cancer cases (83% accuracy in blind testing), and for the different molecular sub-types with accuracies ranging from 82 to 87%, sensitivities of 81 to 88% and specificities of 76 to 96% in leave-one-out cross-validation. These results demonstrate the presence of detectable breath VOC patterns for accurately profiling molecular sub-types in BC, either through specific compound identification by GC-MS or by volatolomic signatures obtained through statistical analysis of the artificially intelligent nanoarray responses.
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Affiliation(s)
- Orna Barash
- Department of Chemical Engineering and Russel Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel
| | - Wei Zhang
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Jeffrey M Halpern
- Department of Chemical Engineering and Russel Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel.,Present Address: Department of Chemical Engineering, University of New Hampshire, Durham, NH, USA
| | - Qing-Ling Hua
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Yue-Yin Pan
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Haneen Kayal
- Department of Chemical Engineering and Russel Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel
| | - Kayan Khoury
- Department of Chemical Engineering and Russel Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel
| | - Hu Liu
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Michael P A Davies
- Molecular & Clinical Cancer Medicine, University of Liverpool, Cancer Research Centre, Liverpool, United Kingdom
| | - Hossam Haick
- Department of Chemical Engineering and Russel Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel
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26
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Beauchamp J, Pleil J, Risby T, Dweik R. Report from IABR Breath Summit 2016 in Zurich, Switzerland. J Breath Res 2016; 10:049001. [DOI: 10.1088/1752-7155/10/4/049001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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27
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Potyrailo RA. Multivariable Sensors for Ubiquitous Monitoring of Gases in the Era of Internet of Things and Industrial Internet. Chem Rev 2016; 116:11877-11923. [DOI: 10.1021/acs.chemrev.6b00187] [Citation(s) in RCA: 224] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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A Portable Real-Time Ringdown Breath Acetone Analyzer: Toward Potential Diabetic Screening and Management. SENSORS 2016; 16:s16081199. [PMID: 27483281 PMCID: PMC5017365 DOI: 10.3390/s16081199] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 07/06/2016] [Accepted: 07/15/2016] [Indexed: 11/25/2022]
Abstract
Breath analysis has been considered a suitable tool to evaluate diseases of the respiratory system and those that involve metabolic changes, such as diabetes. Breath acetone has long been known as a biomarker for diabetes. However, the results from published data by far have been inconclusive regarding whether breath acetone is a reliable index of diabetic screening. Large variations exist among the results of different studies because there has been no “best-practice method” for breath-acetone measurements as a result of technical problems of sampling and analysis. In this mini-review, we update the current status of our development of a laser-based breath acetone analyzer toward real-time, one-line diabetic screening and a point-of-care instrument for diabetic management. An integrated standalone breath acetone analyzer based on the cavity ringdown spectroscopy technique has been developed. The instrument was validated by using the certificated gas chromatography-mass spectrometry. The linear fittings suggest that the obtained acetone concentrations via both methods are consistent. Breath samples from each individual subject under various conditions in total, 1257 breath samples were taken from 22 Type 1 diabetic (T1D) patients, 312 Type 2 diabetic (T2D) patients, which is one of the largest numbers of T2D subjects ever used in a single study, and 52 non-diabetic healthy subjects. Simultaneous blood glucose (BG) levels were also tested using a standard diabetic management BG meter. The mean breath acetone concentrations were determined to be 4.9 ± 16 ppm (22 T1D), and 1.5 ± 1.3 ppm (312 T2D), which are about 4.5 and 1.4 times of the one in the 42 non-diabetic healthy subjects, 1.1 ± 0.5 ppm, respectively. A preliminary quantitative correlation (R = 0.56, p < 0.05) between the mean individual breath acetone concentration and the mean individual BG levels does exist in 20 T1D subjects with no ketoacidosis. No direct correlation is observed in T1D subjects, T2D subjects, and healthy subjects. The results from a relatively large number of subjects tested indicate that an elevated mean breath acetone concentration exists in diabetic patients in general. Although many physiological parameters affect breath acetone, under a specifically controlled condition fast (<1 min) and portable breath acetone measurement can be used for screening abnormal metabolic status including diabetes, for point-of-care monitoring status of ketone bodies which have the signature smell of breath acetone, and for breath acetone related clinical studies requiring a large number of tests.
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29
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Bridgeman D, Tsow F, Xian X, Forzani E. A New Differential Pressure Flow Meter for Measurement of Human Breath Flow: Simulation and Experimental Investigation. AIChE J 2016; 62:956-964. [PMID: 27818521 DOI: 10.1002/aic.15143] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The development and performance characterization of a new differential pressure-based flow meter for human breath measurements is presented in this article. The device, called a "Confined Pitot Tube," is comprised of a pipe with an elliptically shaped expansion cavity located in the pipe center, and an elliptical disk inside the expansion cavity. The elliptical disk, named Pitot Tube, is exchangeable, and has different diameters, which are smaller than the diameter of the elliptical cavity. The gap between the disk and the cavity allows the flow of human breath to pass through. The disk causes an obstruction in the flow inside the pipe, but the elliptical cavity provides an expansion for the flow to circulate around the disk, decreasing the overall flow resistance. We characterize the new sensor flow experimentally and theoretically, using Comsol Multiphysics® software with laminar and turbulent models. We also validate the sensor, using inhalation and exhalation tests and a reference method.
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Affiliation(s)
- Devon Bridgeman
- Dept. of Chemical Engineering, Center for Bioelectronics and Biosensors, Biodesign Institute and Fulton School of Engineering Matter, Transport, and Energy, Arizona State University, Tempe, AZ 85287
| | - Francis Tsow
- Dept. of Chemical Engineering, Center for Bioelectronics and Biosensors, Biodesign Institute and Fulton School of Engineering Matter, Transport, and Energy, Arizona State University, Tempe, AZ 85287
| | - Xiaojun Xian
- Dept. of Chemical Engineering, Center for Bioelectronics and Biosensors, Biodesign Institute and Fulton School of Engineering Matter, Transport, and Energy, Arizona State University, Tempe, AZ 85287
| | - Erica Forzani
- Dept. of Chemical Engineering, Center for Bioelectronics and Biosensors, Biodesign Institute and Fulton School of Engineering Matter, Transport, and Energy, Arizona State University, Tempe, AZ 85287
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Beauchamp JD, Pleil JD, Dweik RA, Herbig J, Risby TH. International Association of Breath Research 10th anniversary conference at the Schoenbrunn Palace in Vienna, Austria. J Breath Res 2016; 10:019001. [DOI: 10.1088/1752-7155/10/1/019001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Nallon EC, Schnee VP, Bright C, Polcha MP, Li Q. Chemical Discrimination with an Unmodified Graphene Chemical Sensor. ACS Sens 2015. [DOI: 10.1021/acssensors.5b00029] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eric C. Nallon
- RDECOM CERDEC Night Vision and Electronic Sensors Directorate, United States Army, Fort Belvoir, Virginia 22060, United States
- Department of Electrical and Computer Engineering, George Mason University, Fairfax, Virginia 22030, United States
| | - Vincent P. Schnee
- RDECOM CERDEC Night Vision and Electronic Sensors Directorate, United States Army, Fort Belvoir, Virginia 22060, United States
| | - Collin Bright
- CACI International Inc, Arlington, Virginia 22201, United States
| | | | - Qiliang Li
- Department of Electrical and Computer Engineering, George Mason University, Fairfax, Virginia 22030, United States
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Lu HL, Lu CJ, Tian WC, Sheen HJ. A vapor response mechanism study of surface-modified single-walled carbon nanotubes coated chemiresistors and quartz crystal microbalance sensor arrays. Talanta 2014; 131:467-74. [PMID: 25281128 DOI: 10.1016/j.talanta.2014.08.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 08/08/2014] [Accepted: 08/09/2014] [Indexed: 01/29/2023]
Abstract
This paper compares the selectivity and discusses the response mechanisms of various surface-modified, single-walled carbon nanotube (SWCNT)-coated sensor arrays for the detection of volatile organic compounds (VOCs). Two types of sensor platforms, chemiresistor and quartz crystal microbalance (QCM), were used to probe the resistance changes and absorption masses during vapor sensing. Four sensing materials were used in this comparison study: pristine, acidified, esterified, and surfactant (sodium dodecyl sulfate, SDS)-coated SWCNTs. SWCNT-coated QCMs reached the response equilibrium faster than the chemiresistors did, which revealed a delay diffusion behavior at the inter-tube junction. In addition, the calibration lines for QCMs were all linear, but the chemiresistors showed curvature calibration lines which indicated less effectiveness of swelling at high concentrations. While the sorption of vapor molecules caused an increase in the resistance for most SWCNTs due to the swelling, the acidified SWCNTs showed no responses to nonpolar vapors and a negative response to hydrogen bond acceptors. This discovery provided insight into the inter-tube interlocks and conductivity modulation of acidified SWCNTs via a hydrogen bond. The results in this study provide a stepping-stone for further understanding of the mechanisms behind the vapor selectivity of surface-modified SWCNT sensor arrays.
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Affiliation(s)
- Hung-Ling Lu
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan
| | - Chia-Jung Lu
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan.
| | - Wei-Cheng Tian
- Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
| | - Horn-Jiunn Sheen
- Institute of Applied Mechanics, National Taiwan University, Taipei, Taiwan
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