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Wang L, Wang Q, Yao C, Li M, Liu G, Zhang M. Flexible Multimodal Sensors Enhanced by Electrospun Lead-Free Perovskite and PVDF-HFP Composite Form-Stable Mesh Membranes for In Situ Plant Monitoring. Anal Chem 2024. [PMID: 38989922 DOI: 10.1021/acs.analchem.4c01684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
The pH and humidity of the crop environment are essential indicators for monitoring crop growth status. This study reports a lead-free perovskite/polyvinylidene fluoride-hexafluoropropylene composite (LPPC) to enhance the stability and reliability of in situ plant pH and humidity monitoring. The mesh composite membrane of LPPC illustrates a hydrophobic contact angle of 101.982°, a tensile strain of 800%, and an opposing surface potential of less than -184.9 mV, which ensures fast response, high sensitivity, and stability of the sensor during long-term plant monitoring. The LPPC-coated pH electrode possesses a sensitivity of -63.90 mV/pH, which provides a fast response within 5 s and is inert to environmental temperature interference. The LPPC-coated humidity sensor obtains a sensitivity of -145.7 Ω/% RH, responds in 28 s, and works well under varying light conditions. The flexible multimodal sensor coated with an LPPC membrane completed real-time in situ monitoring of soilless strawberries for 17 consecutive days. Satisfactory consistency and accuracy performance are observed. The study provides a simple solution for developing reliable, flexible wearable multiparameter sensors for in situ monitoring of multiple parameters of crop environments.
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Affiliation(s)
- Liru Wang
- Key Laboratory of Smart Agriculture Systems, Ministry of Education, China Agricultural University, Beijing 100083, China
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100083, China
| | - Qianqian Wang
- Key Laboratory of Smart Agriculture Systems, Ministry of Education, China Agricultural University, Beijing 100083, China
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100083, China
| | - Chong Yao
- Key Laboratory of Smart Agriculture Systems, Ministry of Education, China Agricultural University, Beijing 100083, China
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100083, China
| | - Minzan Li
- Key Laboratory of Smart Agriculture Systems, Ministry of Education, China Agricultural University, Beijing 100083, China
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100083, China
| | - Gang Liu
- Key Laboratory of Smart Agriculture Systems, Ministry of Education, China Agricultural University, Beijing 100083, China
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100083, China
- National Innovation Center for Digital Agricultural Products Circulation, China Agricultural University, Beijing 100083, China
| | - Miao Zhang
- Key Laboratory of Smart Agriculture Systems, Ministry of Education, China Agricultural University, Beijing 100083, China
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100083, China
- National Innovation Center for Digital Agricultural Products Circulation, China Agricultural University, Beijing 100083, China
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Vo TS, Hoang T, Vo TTBC, Jeon B, Nguyen VH, Kim K. Recent Trends of Bioanalytical Sensors with Smart Health Monitoring Systems: From Materials to Applications. Adv Healthc Mater 2024; 13:e2303923. [PMID: 38573175 DOI: 10.1002/adhm.202303923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/09/2024] [Indexed: 04/05/2024]
Abstract
Smart biosensors attract significant interest due to real-time monitoring of user health status, where bioanalytical electronic devices designed to detect various activities and biomarkers in the human body have potential applications in physical sign monitoring and health care. Bioelectronics can be well integrated by output signals with wireless communication modules for transferring data to portable devices used as smart biosensors in performing real-time diagnosis and analysis. In this review, the scientific keys of biosensing devices and the current trends in the field of smart biosensors, (functional materials, technological approaches, sensing mechanisms, main roles, potential applications and challenges in health monitoring) will be summarized. Recent advances in the design and manufacturing of bioanalytical sensors with smarter capabilities and enhanced reliability indicate a forthcoming expansion of these smart devices from laboratory to clinical analysis. Therefore, a general description of functional materials and technological approaches used in bioelectronics will be presented after the sections of scientific keys to bioanalytical sensors. A careful introduction to the established systems of smart monitoring and prediction analysis using bioelectronics, regarding the integration of machine-learning-based basic algorithms, will be discussed. Afterward, applications and challenges in development using these smart bioelectronics in biological, clinical, and medical diagnostics will also be analyzed. Finally, the review will conclude with outlooks of smart biosensing devices assisted by machine learning algorithms, wireless communications, or smartphone-based systems on current trends and challenges for future works in wearable health monitoring.
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Affiliation(s)
- Thi Sinh Vo
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Trung Hoang
- Department of Biophysics, Sungkyunkwan University, Suwon, 16419, South Korea
- Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Tran Thi Bich Chau Vo
- Faculty of Industrial Management, College of Engineering, Can Tho University, Can Tho, 900000, Vietnam
| | - Byounghyun Jeon
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Vu Hoang Nguyen
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC, 3800, Australia
| | - Kyunghoon Kim
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, South Korea
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Wang H, Li Y, Tian L, Li X, Gao Q, Liu Y, Ma C, Wang Q, Shi C. A LAMP-based hydrogen ion selective electrochemical sensor for highly sensitive detection of Mycoplasma pneumoniae. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 38690766 DOI: 10.1039/d4ay00341a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
A concise and rapid detection method for Mycoplasma pneumoniae is urgently required due to its severe impact on human health. To meet such a need, this study proposed and constructed an innovative point-of-care testing (POCT) platform that consists of a hydrogen ion-selective loop-mediated isothermal amplification (H+-LAMP) sensor and an electrochemical detection device. The H+-LAMP sensor successfully integrated the working and reference electrodes and converted the H+ generated during the LAMP process into an electrochemical signal. High sensitivity and stability for pathogen detection were also achieved by treating the working electrode with an electrodeposited polyaniline solid contact layer and by using an ion-selective membrane. As a result, the sensor shows a sensitivity of 68.26 mV per pH, a response time of less than 2 s, and a potential drift of less than 5 mV within one hour, which well meets the urgent need. The results also demonstrated that the detection limit for Mycoplasma pneumoniae was lowered to 1 copy per μL, the nucleic acid extraction and detection process could be completed in 30 minutes, and the impact of interfering ions on the sensor was negligible. Validation with 20 clinical samples yielded satisfactory results. More importantly, the storage lifespan of such an electrochemical sensor is over seven days, which is a great advantage for on-site pathogen detection. Therefore, the hydrogen ion-selective sensor constructed in this investigation is particularly suitable as a core component for instant pathogen detection platforms.
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Affiliation(s)
- Huiqing Wang
- Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, College of Life Sciences, Department of Pathogenic Biology, School of Basic Medicine, Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, PR China.
| | - Yang Li
- Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, College of Life Sciences, Department of Pathogenic Biology, School of Basic Medicine, Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, PR China.
| | - Lin Tian
- Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, College of Life Sciences, Department of Pathogenic Biology, School of Basic Medicine, Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, PR China.
| | - Xinyi Li
- Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, College of Life Sciences, Department of Pathogenic Biology, School of Basic Medicine, Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, PR China.
| | - Qian Gao
- Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, College of Life Sciences, Department of Pathogenic Biology, School of Basic Medicine, Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, PR China.
| | - Yaru Liu
- Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, College of Life Sciences, Department of Pathogenic Biology, School of Basic Medicine, Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, PR China.
| | - Cuiping Ma
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, Qingdao Key Laboratory of Nucleic Acid Rapid Detection, Sino-UAE International Cooperative Joint Laboratory of Pathogenic Microorganism Rapid Detection, College of Biological Engineering, Qingdao University of Science and Technology, 266042, Qingdao, China
| | - Qing Wang
- Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, College of Life Sciences, Department of Pathogenic Biology, School of Basic Medicine, Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, PR China.
| | - Chao Shi
- Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, College of Life Sciences, Department of Pathogenic Biology, School of Basic Medicine, Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, PR China.
- Qingdao JianMa Gene Technology Co., Ltd, Qingdao, 266114, PR China
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Mou L, Mandal K, Mecwan MM, Hernandez AL, Maity S, Sharma S, Herculano RD, Kawakita S, Jucaud V, Dokmeci MR, Khademhosseini A. Correction: Integrated biosensors for monitoring microphysiological systems. LAB ON A CHIP 2024; 24:2358-2359. [PMID: 38501991 PMCID: PMC11019824 DOI: 10.1039/d4lc90026j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 03/20/2024]
Abstract
Correction for 'Integrated biosensors for monitoring microphysiological systems' by Lei Mou et al., Lab Chip, 2022, 22, 3801-3816, https://doi.org/10.1039/D2LC00262K.
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Affiliation(s)
- Lei Mou
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
- Department of Clinical Laboratory, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou, Guangdong, P. R. China
| | - Kalpana Mandal
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Marvin Magan Mecwan
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Ana Lopez Hernandez
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Surjendu Maity
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Saurabh Sharma
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Rondinelli Donizetti Herculano
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
- Department of Bioprocess and Biotechnology Engineering, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP 14801-902, Brazil
| | - Satoru Kawakita
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Vadim Jucaud
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Mehmet Remzi Dokmeci
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
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García-Guzmán JJ, Sainz-Calvo ÁJ, Sierra-Padilla A, Bellido-Milla D, Cubillana-Aguilera L, Palacios-Santander JM. Simple and cost-effective pH and T sensors from top to bottom: New chemical probes based on sonogel-carbon transducers for plasma analyses. Talanta 2024; 270:125603. [PMID: 38194860 DOI: 10.1016/j.talanta.2023.125603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/22/2023] [Accepted: 12/24/2023] [Indexed: 01/11/2024]
Abstract
The present work introduces two novel approaches to fabricate simple and cost-effective pH and temperature probes. Sinusoidal voltage methodologies were employed to electrodeposit polyaniline (PANI) at different growth times (10-20 min) on the surface of an affordable Sonogel-Carbon electrode to conform a robust pH sensor. The presence of PANI and its phases were corroborated by electrochemical means. The sensibility, reversibility and selectivity of the produced sensor were very adequate to apply it in physiological samples. In this regard, the proposed sensor was evaluated in artificial blood serum as well as untreated plasma samples obtaining outstanding results in comparison with a gold reference technique (error <2 %). In addition, a new composite sonogel material, intrinsically modified with multiwalled carbon nanotubes, was attached on top of an electrode couple to one-step fabricate a new temperature probe, relating resistance of the probe with the surroundings temperature. In this case, an optical microscopy characterization was performed to study the sturdiness of the layer. Remarkably, suitable results in terms of sensitivity and selectivity were obtained. The probes were assessed in artificial and untreated plasma samples as well, with the corresponding validation step (error <1 %) by using a commercial temperature probe.
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Affiliation(s)
- Juan José García-Guzmán
- Institute of Research on Electron Microscopy and Materials (IMEYMAT), Department of Analytical Chemistry, Faculty of Sciences, Campus de Excelencia Internacional del Mar (CEIMAR), University of Cadiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, 11510, Puerto Real, Cádiz, Spain.
| | - Álvaro Jesús Sainz-Calvo
- Institute of Research on Electron Microscopy and Materials (IMEYMAT), Department of Analytical Chemistry, Faculty of Sciences, Campus de Excelencia Internacional del Mar (CEIMAR), University of Cadiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, 11510, Puerto Real, Cádiz, Spain
| | - Alfonso Sierra-Padilla
- Institute of Research on Electron Microscopy and Materials (IMEYMAT), Department of Analytical Chemistry, Faculty of Sciences, Campus de Excelencia Internacional del Mar (CEIMAR), University of Cadiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, 11510, Puerto Real, Cádiz, Spain
| | - Dolores Bellido-Milla
- Institute of Research on Electron Microscopy and Materials (IMEYMAT), Department of Analytical Chemistry, Faculty of Sciences, Campus de Excelencia Internacional del Mar (CEIMAR), University of Cadiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, 11510, Puerto Real, Cádiz, Spain
| | - Laura Cubillana-Aguilera
- Institute of Research on Electron Microscopy and Materials (IMEYMAT), Department of Analytical Chemistry, Faculty of Sciences, Campus de Excelencia Internacional del Mar (CEIMAR), University of Cadiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, 11510, Puerto Real, Cádiz, Spain.
| | - José María Palacios-Santander
- Institute of Research on Electron Microscopy and Materials (IMEYMAT), Department of Analytical Chemistry, Faculty of Sciences, Campus de Excelencia Internacional del Mar (CEIMAR), University of Cadiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, 11510, Puerto Real, Cádiz, Spain
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Chiba K, Harada Y, Matsumoto H, Matsui H, Ito N, Sekine T, Nagamine K. Screen-printed wearable skin surface pH sensor for real-time monitoring of the buffering capacity of human skin. Anal Bioanal Chem 2024; 416:1635-1645. [PMID: 38294529 DOI: 10.1007/s00216-024-05165-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 02/01/2024]
Abstract
This study demonstrated for the first time that skin surface pH can be monitored in real-time, using a screen-printed wearable pH sensor, to evaluate the buffering capacity of the human skin. The screen-printed pH sensor was composed of a polyaniline-based pH-sensitive electrode and a nitrocellulose membrane-based liquid junction type of Ag/AgCl reference electrode. This sensor showed a reliable and reversible potentiometric response to pH with long-term potential stability. Intermittent monitoring of the buffering capacity of skin surface pH demonstrated the reliability of the proposed wearable pH sensor, which was comparable to that of a commercially available flat-tip pH sensor. We found that contact of the wearable pH sensor with the subject's skin via aqueous electrolyte solutions was necessary for the sensor to continuously monitor the skin surface pH while sustaining the natural buffer capacity of the human skin surface.
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Affiliation(s)
- Kentaro Chiba
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan
| | - Yutaro Harada
- Faculty of Engineering, Department of Polymeric and Organic Materials Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan
| | - Hirotaka Matsumoto
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan
| | - Hiroyuki Matsui
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan
- Faculty of Engineering, Department of Polymeric and Organic Materials Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan
| | - Naoya Ito
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan
| | - Tomohito Sekine
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan
- Faculty of Engineering, Department of Polymeric and Organic Materials Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan
| | - Kuniaki Nagamine
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan.
- Faculty of Engineering, Department of Polymeric and Organic Materials Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan.
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Zhu X, Sun H, Yu B, Xu L, Xiao H, Fu Z, Gao T, Yang X. A flexible pH sensor based on polyaniline@oily polyurethane/polypropylene spunbonded nonwoven fabric. RSC Adv 2024; 14:5627-5637. [PMID: 38352672 PMCID: PMC10863422 DOI: 10.1039/d3ra07878g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/01/2024] [Indexed: 02/16/2024] Open
Abstract
To fabricate a two-electrode flexible pH sensor based on polypropylene spunbonded nonwoven fabric (PP SF), oily polyurethane (OPU) was first coated on the surface of PP SF to obtain OPU/PP SF. Then, silver/silver chloride (Ag/AgCl) paste, used as the reference electrode and conductive carbon (C) paste were transferred to the OPU/PP SF surface through screen printing. Polyaniline (PANI) was deposited on the surface of the C paste to form a sensing working electrode via the electro-chemical deposition method. The results showed that the surface of the obtained PANI@OPU/PP SF flexible pH sensor (3D PANI pH sensor) presented a three-dimensional (3D) porous network structure. The 3D PANI pH sensor had good mechanical properties, an excellent Nernst response (-67.67 mV pH-1) and linearity (R2 = 0.99) in the pH range from 2.00 to 8.00 in the normal state. In the bent state, the 3D PANI pH sensor retained similar sensitivity (-68.87 mV pH-1) and linearity (R2 = 0.99). Moreover, the 3D PANI pH sensor exhibited a short response time (8 s), excellent reversibility (1.20 mV), low temperature drift (-0.0872 mV pH-1 °C-1) and long-term stability (0.83 mV h-1) in the normal state. Furthermore, the 3D PANI pH sensor can be effectively applied for pH monitoring of liquids and fruits with irregular curved surfaces. The error margin is no more than 0.16 compared to a commercial pH meter.
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Affiliation(s)
- Xiangxiang Zhu
- College of Textiles Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 China
| | - Hui Sun
- College of Textiles Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 China
| | - Bin Yu
- College of Textiles Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 China
| | - Lei Xu
- College of Textiles Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 China
- School of Textile and Clothing and Art and Media, Suzhou Institute of Trade & Commerce 287 Xuefu Road Suzhou 215009 Jiangsu China
| | - Hao Xiao
- College of Textiles Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 China
| | - Zhuan Fu
- College of Textiles Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 China
| | - Tian Gao
- College of Textiles Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 China
| | - Xiaodong Yang
- College of Textiles Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 China
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Horta-Velázquez A, Mota-Morales JD, Morales-Narváez E. Next-generation of smart dressings: Integrating multiplexed sensors and theranostic functions. Int J Biol Macromol 2024; 254:127737. [PMID: 38287589 DOI: 10.1016/j.ijbiomac.2023.127737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/18/2023] [Accepted: 10/26/2023] [Indexed: 01/31/2024]
Abstract
Non-healing wounds represent a significant burden for healthcare systems and society, giving rise to severe economic and human issues. Currently, the use of dressings and visual assessment represent the primary and standard care for wounds. Conventional dressings, like cotton gauze, provide only passive physical protection. Besides, they end up paradoxically hampering the wound-healing process by producing tissue damage and pain when removed during routine check-ups. In response to these limitations, researchers, engineers, and technologists are developing innovative dressings that incorporate advanced diagnostic and therapeutic functionalities, coined as "smart dressings". Now, the maturation of smart dressing is bringing them closer to real-life applications, leading to an exciting new generation of these devices. The next generation of smart dressings is capable of monitoring in real-time multiple biomarkers while including pro-healing capabilities in a single platform. Such multiplexed and theranostic smart dressings are expected to offer a timely biomarker-directed diagnosis of non-healing wounds while enabling rapid, automated, and personalized treatments of infection and chronicity. Herein, we provide an insightful overview of these advantageous devices, delving into the diverse spectrum of possible engineering strategies. This encompasses the use of electrochemical and optical platforms with diverse multiplexing architectures, such as multi-zone sensing arrays and multi-layered devices. Open or closed-loop theranostic mechanisms using various stimuli-responsive materials that could be internally or externally controlled are also included. Finally, a critical discussion on the main challenges and future directions of smart dressings is also offered.
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Affiliation(s)
| | - Josué D Mota-Morales
- Centro de Física Aplicada y Tecnología Avanzada (CFATA), Universidad Nacional Autónoma de México (UNAM), Querétaro 76230, Mexico
| | - Eden Morales-Narváez
- Centro de Física Aplicada y Tecnología Avanzada (CFATA), Universidad Nacional Autónoma de México (UNAM), Querétaro 76230, Mexico.
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9
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Stoukatch S, Debliquy M, Dupont F, Redouté JM. Low-Cost Optical pH Sensor with a Polyaniline (PANI)-Sensitive Layer Based on Commercial Off-the-Shelf (COTS) Components. MICROMACHINES 2023; 14:2197. [PMID: 38138366 PMCID: PMC10745723 DOI: 10.3390/mi14122197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/17/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023]
Abstract
In this paper, we presented a novel, compact, conceptually simple, and fully functional low-cost prototype of a pH sensor with a PANI thin film as a sensing layer. The PANI deposition process is truly low-cost; it performs from the liquid phase, does not required any specialized equipment, and comprises few processing steps. The resulting PANI layer has excellent stability, resistance to solvents, and bio- and chemical compatibility. The pH sensor's sensing part includes only a few components such as a red-light-emitting diode (LED) as a light source, and a corresponding photodiode (PD) as a detector. Unlike other PANI-based sensors, it requires no sophisticated and expensive techniques and components such lasers to excite the PANI or spectrometry to identify the PANI color change induced by pH variation. The pH sensor is sensitive in the broad pH range of 3 to 9, which is useful for numerous practical applications. The sensor requires a tiny volume of the test specimen, as little as 55 µL. We developed a fully integrated packaging solution for the pH sensor that comprises a limited number of components. The pH sensor comprises exclusively commercial off-the-shelf (COTS) components and standard printed circuit boards. The pH sensor is assembled using standard surface mounting technology (SMT).
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Affiliation(s)
- Serguei Stoukatch
- Microsys Laboratory, Department of Electrical Engineering and Computer Science (Montefiore Institute), University of Liège, 4000 Liège, Belgium; (F.D.); (J.-M.R.)
| | - Marc Debliquy
- Service de Science des Matériaux, Faculté Polytechnique, Université de Mons, 7000 Mons, Belgium;
| | - Francois Dupont
- Microsys Laboratory, Department of Electrical Engineering and Computer Science (Montefiore Institute), University of Liège, 4000 Liège, Belgium; (F.D.); (J.-M.R.)
| | - Jean-Michel Redouté
- Microsys Laboratory, Department of Electrical Engineering and Computer Science (Montefiore Institute), University of Liège, 4000 Liège, Belgium; (F.D.); (J.-M.R.)
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10
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Zhao Y, Yu Y, Zhao S, Zhu R, Zhao J, Cui G. Highly sensitive pH sensor based on flexible polyaniline matrix for synchronal sweat monitoring. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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11
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Yang B, Gordiyenko K, Schäfer A, Dadfar SMM, Yang W, Riehemann K, Kumar R, Niemeyer CM, Hirtz M. Fluorescence Imaging Study of Film Coating Structure and Composition Effects on DNA Hybridization. ADVANCED NANOBIOMED RESEARCH 2023. [DOI: 10.1002/anbr.202200133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Bingquan Yang
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMFi) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Klavdiya Gordiyenko
- Institute of Biological Interfaces (IBG-1) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Andreas Schäfer
- nanoAnalytics GmbH Heisenbergstraße 11 48149 Münster Germany
| | - Seyed Mohammad Mahdi Dadfar
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMFi) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Wenwu Yang
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMFi) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Kristina Riehemann
- Physical Institute and Center for Nanotechnology (CeNTech) University of Münster Wilhelm-Klemm-Straße 10 48149 Münster Germany
| | - Ravi Kumar
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMFi) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Christof M. Niemeyer
- Institute of Biological Interfaces (IBG-1) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Michael Hirtz
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMFi) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
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12
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Yang M, Sun N, Lai X, Wu J, Wu L, Zhao X, Feng L. Paper-Based Sandwich-Structured Wearable Sensor with Sebum Filtering for Continuous Detection of Sweat pH. ACS Sens 2023; 8:176-186. [PMID: 36604942 DOI: 10.1021/acssensors.2c02016] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Wearable sweat sensors, a product of the development of flexible electronics and microfluidic technologies, can continuously and noninvasively monitor abundant biomarkers in human sweat; however, sweat interferences, such as sebum, can reduce sensor reliability and accuracy. Herein, for the first time, the influence of sebum on the potentiometric response of an all-solid-state pH sensor was studied, and the obtained experimental results show that sebum mixed in sweat can decrease the potential response of the sensor and the slope of its calibration curve. A paper-based sandwich-structured pH sensor that can filter the sebum mixed in sweat was proposed based on commonly used oil-control sheets. Moreover, the hydrophilic properties, microstructure, and microfluidic performance of the sensor were investigated. The detection performance of the paper-based sandwich-structured pH sensor was comprehensively evaluated in terms of calibration in the presence of sebum and potentiometric response upon the addition of sebum. Furthermore, the anti-interference ability of the sensor was evaluated using different analytes under various deformation conditions. On-body trials were conducted to verify the performance, and their results showed that the proposed sensor can filter over 90% of the sebum in sweat, significantly enhancing sensor reliability and accuracy. Additionally, microfluidic channels could be simply fabricated using a scissor and paper, obviating the need for complex micromachining processes, such as photolithography and laser engraving. Overall, this work illustrates the influence of sebum on the detection performance of traditional potentiometric wearable sensors and paves the way for their development for real-world applications.
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Affiliation(s)
- Mingpeng Yang
- School of Automation, Nanjing University of Information Science and Technology, Nanjing 210044, China.,Jiangsu Collaborative Innovation Centre on Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Nan Sun
- School of Automation, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Xiaochen Lai
- School of Automation, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Jiamin Wu
- Zhenyuan Applied Meteorological Research Institute, Nanjing 211100, China
| | - Lifan Wu
- College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China
| | - Xingqiang Zhao
- School of Automation, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Lihang Feng
- College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China
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13
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Emerging Applications of Versatile Polyaniline-Based Polymers in the Food Industry. Polymers (Basel) 2022; 14:polym14235168. [PMID: 36501566 PMCID: PMC9737623 DOI: 10.3390/polym14235168] [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: 11/01/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/30/2022] Open
Abstract
Intrinsically conducting polymers (ICPs) have been widely studied in various applications, such as sensors, tissue engineering, drug delivery, and semiconductors. Specifically, polyaniline (PANI) stands out in food industry applications due to its advantageous reversible redox properties, electrical conductivity, and simple modification. The rising concerns about food safety and security have encouraged the development of PANI as an antioxidant, antimicrobial agent, food freshness indicator, and electronic nose. At the same time, it plays an important role in food safety control to ensure the quality of food. This study reviews the emerging applications of PANI in the food industry. It has been found that the versatile applications of PANI allow the advancement of modern active and intelligent food packaging and better food quality monitoring systems.
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14
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An H, Lee J, Kee H, Park S. pH Sensor-Embedded Magnetically Driven Capsule for H. pylori Infection Diagnosis. IEEE Robot Autom Lett 2022. [DOI: 10.1109/lra.2022.3189155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Heesu An
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Jihun Lee
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Hyeonwoo Kee
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Sukho Park
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
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15
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Laffitte Y, Gray BL. Potentiometric pH Sensor Based on Flexible Screen-Printable Polyaniline Composite for Textile-Based Microfluidic Applications. MICROMACHINES 2022; 13:1376. [PMID: 36143999 PMCID: PMC9503819 DOI: 10.3390/mi13091376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 06/16/2023]
Abstract
Skin pH can be used for monitoring infections in a healing wound, the onset of dermatitis, and hydration in sports medicine, but many challenges exist in integrating conventional sensing materials into wearable platforms. We present the development of a flexible, textile-based, screen-printed electrode system for biosensing applications, and demonstrate flexible polyaniline (PANI) composite-based potentiometric sensors on a textile substrate for real-time pH measurement. The pH response of the optimized PANI/dodecylbenzene sulfonic acid/screen-printing ink composite is compared to electropolymerized and drop-cast PANI sensors via open circuit potential measurements. High sensitivity was observed for all sensors between pH 3-10, with a composite based on PANI emeraldine base, demonstrating sufficient response time and a linear sensitivity of -27.9 mV/pH. This exceeded prior flexible screen-printed pH sensors in which all parts of the sensor, including the pH sensing material, are screen-printed. Even better sensitivity was observed for a PANI emeraldine salt composite (-42.6 mV/pH), although the response was less linear. Furthermore, the sensor was integrated into a screen-printed microfluidic channel demonstrating sample isolation during measurement for wearable, micro cloth-based analytical devices. This is the first fully screen-printed flexible PANI composite pH sensor demonstrated on a textile substrate that can additionally be integrated with textile-based microfluidic channels.
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16
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Chen L, Chen F, Liu G, Lin H, Bao Y, Han D, Wang W, Ma Y, Zhang B, Niu L. Superhydrophobic Functionalized Ti 3C 2T x MXene-Based Skin-Attachable and Wearable Electrochemical pH Sensor for Real-Time Sweat Detection. Anal Chem 2022; 94:7319-7328. [PMID: 35536877 DOI: 10.1021/acs.analchem.2c00684] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Sweat pH is a critical indicator for evaluating human health. With the extensive attention on the wearable and flexible biosensing devices, the technology for the monitoring of human sweat can be realized. In this study, a sensitive, miniaturized, and flexible electrochemical sweat pH sensor was developed for the continuous and real-time monitoring of the hydrogen-ion concentration in human sweat. A flexible electrode was fabricated on the poly(ethylene terephthalate) (PET) substrate by a simple and low-cost screen-printing technology, which was based on the integration of fluoroalkyl silane-functionalized Ti3C2Tx (F-Ti3C2Tx) and the polyaniline (PANI) membrane technology instead of the traditional ion-sensitive membrane. The surface functionalization strategy for Ti3C2Tx with perfluorodecyltrichlorosilane can provide environmental stability. Functionalized Ti3C2Tx (F-Ti3C2Tx) was doped with PANI to obtain improved responsiveness, sensitivity, and reversibility. The constructed microsize, portable, and wearable F-Ti3C2Tx/PANI pH sensor aimed to real-time monitor the pH value of human sweat during exercise. On-body sweat pH monitoring for females and males, respectively, exhibited high accuracy and continuous stability compared with ex situ analyses. This study thus offers a facile and practical solution for developing a highly reliable MXene-based mini-type pH sensor to realize the online monitoring of human sweat pH.
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Affiliation(s)
- Lijuan Chen
- Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.,School of Chemistry and Chemical Engineering, Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Fan Chen
- Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Gang Liu
- Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Haoliang Lin
- Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yu Bao
- Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Dongxue Han
- Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Wei Wang
- Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yingming Ma
- Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Baohua Zhang
- Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Li Niu
- Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.,Department of Chemistry and Environment Science, Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, P. R. China
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17
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A nanocomposite-decorated laser-induced graphene-based multi-functional hybrid sensor for simultaneous detection of water contaminants. Anal Chim Acta 2022; 1209:339872. [DOI: 10.1016/j.aca.2022.339872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/29/2022] [Accepted: 04/22/2022] [Indexed: 11/23/2022]
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18
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Abstract
Conductive polymers have attracted wide attention since their discovery due to their unique properties such as good electrical conductivity, thermal and chemical stability, and low cost. With different possibilities of preparation and deposition on surfaces, they present unique and tunable structures. Because of the ease of incorporating different elements to form composite materials, conductive polymers have been widely used in a plethora of applications. Their inherent mechanical tolerance limit makes them ideal for flexible devices, such as electrodes for batteries, artificial muscles, organic electronics, and sensors. As the demand for the next generation of (wearable) personal and flexible sensing devices is increasing, this review aims to discuss and summarize the recent manufacturing advances made on flexible electrochemical sensors.
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19
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Zhao H, Su R, Teng L, Tian Q, Han F, Li H, Cao Z, Xie R, Li G, Liu X, Liu Z. Recent advances in flexible and wearable sensors for monitoring chemical molecules. NANOSCALE 2022; 14:1653-1669. [PMID: 35040855 DOI: 10.1039/d1nr06244a] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In recent years, real-time health management has received increasing attention, benefiting from the rapid development of flexible and wearable devices. Conventionally, flexible and wearable devices are used for collecting health data such as electrophysiological signals, blood pressure, heart rate, etc. The monitoring of chemical factors has shown growing significance, providing the basis for the screening, diagnosis, and treatment of many diseases. Nowadays, in order to understand the health status of the human body more comprehensively and accurately, researchers in the community have started putting effort into developing wearable devices for monitoring chemical factors. Progressively, more flexible chemical sensors with wearable real-time health-monitoring functionality have been developed thanks to advances relating to wireless communications and flexible electronics. In this review, we describe the variety of chemical molecules and information that can currently be monitored, including pH levels, glucose, lactate, uric acid, ion levels, cytokines, nutrients, and other biomarkers. This review analyzes the pros and cons of the most advanced wearable chemical sensors in terms of wearability. At the end of this review, we discuss the current challenges and development trends relating to flexible and wearable chemical sensors from the aspects of materials, electrode designs, and soft-hard interface connections.
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Affiliation(s)
- Hang Zhao
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
- Neural Engineering Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Rui Su
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Lijun Teng
- Neural Engineering Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Qiong Tian
- Neural Engineering Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Fei Han
- Neural Engineering Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Hanfei Li
- Neural Engineering Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Zhengshuai Cao
- Center for Opto-Electronic Engineering and Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Ruijie Xie
- Neural Engineering Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Guanglin Li
- Neural Engineering Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Xijian Liu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Zhiyuan Liu
- Neural Engineering Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
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20
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Zhang Z, Su R, Han F, Zheng Z, Liu Y, Zhou X, Li Q, Zhai X, Wu J, Pan X, Pan H, Guo P, Li Z, Liu Z, Zhao X. A soft intelligent dressing with pH and temperature sensors for early detection of wound infection. RSC Adv 2022; 12:3243-3252. [PMID: 35425400 PMCID: PMC8979260 DOI: 10.1039/d1ra08375a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/16/2022] [Indexed: 12/28/2022] Open
Abstract
Wound infection is a common clinical problem. Traditional detection methods can not provide infection early warning information in time. With the development of flexible electronics, flexible wearable devices have been widely used in the field of intelligent monitoring. Here, we describe the development of a soft wound infection monitoring system with pH sensors and temperature sensors. The measurement range of pH was 4–10, the fitting accuracy was 99.8%, and the response time was less than 6 s. The temperature sensor array showed good accuracy and short response times in the range of 30 °C to 40 °C. A series of in vitro tests and the use of a rat model of Staphylococcus aureus infection confirmed that this flexible detection system can monitor the pH and temperature changes occurring in the early stage of infection, which provides an effective reference for clinical application. A soft intelligent dressing can monitor the changes of pH and temperature in the early stage of infection, which provides a possibility for wearable wound real-time monitoring.![]()
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Affiliation(s)
- Zhiyang Zhang
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, PR China
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Rui Su
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen 518055, PR China
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, School of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Fei Han
- Neural Engineering Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Zhiqiang Zheng
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Yuan Liu
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Xiaomeng Zhou
- Neural Engineering Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Qingsong Li
- Neural Engineering Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Xinyun Zhai
- Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, PR China
| | - Jun Wu
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, PR China
| | - Xiaohua Pan
- Southern Medical University, Shenzhen Bao'an People's Hospital, Dept Orthoped & Traumatol, Shenzhen 518101, PR China
| | - Haobo Pan
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Peizhi Guo
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, School of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Zhaoyang Li
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, PR China
| | - Zhiyuan Liu
- Neural Engineering Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Xiaoli Zhao
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen 518055, PR China
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21
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Zea M, Texidó R, Villa R, Borrós S, Gabriel G. Specially Designed Polyaniline/Polypyrrole Ink for a Fully Printed Highly Sensitive pH Microsensor. ACS APPLIED MATERIALS & INTERFACES 2021; 13:33524-33535. [PMID: 34227800 PMCID: PMC8397255 DOI: 10.1021/acsami.1c08043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
pH sensing for healthcare applications requires sensors with mechanically stable materials of high sensitivity and high reproducibility combined with low-cost fabrication technologies. This work proposes a fully printed pH sensor based on a specially formulated conducting polymer deposited on a microelectrode in a flexible substrate. A formulation, which combined polyaniline (PANI) and polypyrrole (PPy) with integrated polyelectrolyte poly(sodium 4-styrenesulfonate) (PSS), was specially prepared to be printed by inkjet printing (IJP). The sensor has good sensitivity in the physiological region (pH 7-7.5) key for the healthcare biosensor. This mixture printed over a commercial gold ink, which has a singular chemical functionalization with phthalocyanine (Pc), increased the sensor sensitivity, showing an excellent reproducibility with a linear super-Nernstian response (81.2 ± 0.5 mV/pH unit) in a wide pH range (pH 3-10). This new ink together with the IJP low-cost technique opens new opportunities for pH sensing in the healthcare field with a single device, which is disposable, highly sensitive, and stable in the whole pH range.
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Affiliation(s)
- Miguel Zea
- Instituto
de Microelectrónica de Barcelona IMB-CNM (CSIC), Campus Universitat Autònoma
de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
- PhD
in Electrical and Telecommunication Engineering, Universitat Autonoma de Barcelona (UAB), Barcelona, Spain
| | - Robert Texidó
- Grup
d’Enginyeria de Materials, Institut
Químic de Sarrià-Universitat Ramon Llull, vía Augusta 390, 08017 Barcelona, Spain
| | - Rosa Villa
- Instituto
de Microelectrónica de Barcelona IMB-CNM (CSIC), Campus Universitat Autònoma
de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Zaragoza, Spain
| | - Salvador Borrós
- Grup
d’Enginyeria de Materials, Institut
Químic de Sarrià-Universitat Ramon Llull, vía Augusta 390, 08017 Barcelona, Spain
| | - Gemma Gabriel
- Instituto
de Microelectrónica de Barcelona IMB-CNM (CSIC), Campus Universitat Autònoma
de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Zaragoza, Spain
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22
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Abstract
Nowadays, we are assisting in the exceptional growth in research relating to the development of wearable devices for sweat analysis. Sweat is a biofluid that contains useful health information and allows a non-invasive, continuous and comfortable collection. For this reason, it is an excellent biofluid for the detection of different analytes. In this work, electrochemical sensors based on polyaniline thin films deposited on the flexible substrate polyethylene terephthalate coated with indium tin oxide were studied. Polyaniline thin films were abstained by the potentiostatic deposition technique, applying a potential of +2 V vs. SCE for 90 s. To improve the sensor performance, the electronic substrate was modified with reduced graphene oxide, obtained at a constant potential of −0.8 V vs. SCE for 200 s, and then polyaniline thin films were electrodeposited on top of the as-deposited substrate. All samples were characterized by XRD, SEM, EDS, static contact angle and FT-IR/ATR analysis to correlate the physical-chemical features with the performance of the sensors. The obtained electrodes were tested as pH sensors in the range from 2 to 8, showing good behavior, with a sensitivity of 62.3 mV/pH, very close to a Nernstian response, and a reproducibility of 3.8%. Interference tests, in the presence of competing ions, aimed to verify the selectivity, were also performed. Finally, a real sweat sample was collected, and the sweat pH was quantified with both the proposed sensor and a commercial pH meter, showing an excellent concordance.
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23
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Hou C, Zhang F, Chen C, Zhang Y, Wu R, Ma L, Lin C, Guo W, Liu XY. Wearable hydration and pH sensor based on protein film for healthcare monitoring. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01627-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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24
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Mugo SM, Lu W, Wood M, Lemieux S. Wearable microneedle dual electrochemical sensor for simultaneous pH and cortisol detection in sweat. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100039] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Samuel M. Mugo
- Physical Sciences Department MacEwan University Edmonton Canada
| | - Weihao Lu
- Physical Sciences Department MacEwan University Edmonton Canada
| | - Marika Wood
- Physical Sciences Department MacEwan University Edmonton Canada
| | - Stephane Lemieux
- Department of Decision Sciences MacEwan University Edmonton Canada
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25
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Dubey N, Arora S. Surfactant assisted synthesis of pH responsive polyaniline-cellulose biocomposite for sensor applications. POLYM-PLAST TECH MAT 2021. [DOI: 10.1080/25740881.2021.1888985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Neelima Dubey
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
| | - Sanjiv Arora
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
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26
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Alam AU, Rathi P, Beshai H, Sarabha GK, Deen MJ. Fruit Quality Monitoring with Smart Packaging. SENSORS (BASEL, SWITZERLAND) 2021; 21:1509. [PMID: 33671571 PMCID: PMC7926787 DOI: 10.3390/s21041509] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 01/05/2023]
Abstract
Smart packaging of fresh produce is an emerging technology toward reduction of waste and preservation of consumer health and safety. Smart packaging systems also help to prolong the shelf life of perishable foods during transport and mass storage, which are difficult to regulate otherwise. The use of these ever-progressing technologies in the packaging of fruits has the potential to result in many positive consequences, including improved fruit quality, reduced waste, and associated improved public health. In this review, we examine the role of smart packaging in fruit packaging, current-state-of-the-art, challenges, and prospects. First, we discuss the motivation behind fruit quality monitoring and maintenance, followed by the background on the development process of fruits, factors used in determining fruit quality, and the classification of smart packaging technologies. Then, we discuss conventional freshness sensors for packaged fruits including direct and indirect freshness indicators. After that, we provide examples of possible smart packaging systems and sensors that can be used in monitoring fruits quality, followed by several strategies to mitigate premature fruit decay, and active packaging technologies. Finally, we discuss the prospects of smart packaging application for fruit quality monitoring along with the associated challenges and prospects.
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Affiliation(s)
| | | | | | | | - M. Jamal Deen
- Department of Electrical and Computer Engineering, McMaster University, Hamilton, ON L8S 4L8, Canada; (A.U.A.); (P.R.); (H.B.); (G.K.S.)
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27
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Abstract
Although its first definition dates back to more than a century ago, pH and its measurement are still studied for improving the performance of current sensors in everyday analysis. The gold standard is the glass electrode, but its intrinsic fragility and need of frequent calibration are pushing the research field towards alternative sensitive devices and materials. In this review, we describe the most recent optical, electrochemical, and transistor-based sensors to provide an overview on the status of the scientific efforts towards pH sensing.
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Drago E, Campardelli R, Pettinato M, Perego P. Innovations in Smart Packaging Concepts for Food: An Extensive Review. Foods 2020; 9:E1628. [PMID: 33171881 PMCID: PMC7695158 DOI: 10.3390/foods9111628] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/04/2020] [Accepted: 11/04/2020] [Indexed: 01/21/2023] Open
Abstract
Innovation in food packaging is mainly represented by the development of active and intelligent packing technologies, which offer to deliver safer and high-quality food products. Active packaging refers to the incorporation of active component into the package with the aim of maintaining or extending the product quality and shelf-life. The intelligent systems are able to monitor the condition of packaged food in order to provide information about the quality of the product during transportation and storage. These packaging technologies can also work synergistically to yield a multipurpose food packaging system. This review is a critical and up-dated analysis of the results reported in the literature about this fascinating and growing field of research. Several aspects are considered and organized going from the definitions and the regulations, to the specific functions and the technological aspects regarding the manufacturing technologies, in order to have a complete overlook on the overall topic.
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Affiliation(s)
| | | | - Margherita Pettinato
- Department of Civil, Chemical and Environmental Engineering (DICCA), Polytechnique School, University of Genoa, Via Opera Pia 15, 16145 Genova, Italy; (E.D.); (R.C.); (P.P.)
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Printing-Based Assay and Therapy of Antioxidants. Antioxidants (Basel) 2020; 9:antiox9111052. [PMID: 33126547 PMCID: PMC7692755 DOI: 10.3390/antiox9111052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/18/2020] [Accepted: 10/26/2020] [Indexed: 12/21/2022] Open
Abstract
Antioxidants are essential in regulating various physiological functions and oxidative deterioration. Over the past decades, many researchers have paid attention to antioxidants and studied the screening of antioxidants from natural products and their utilization for treatments in diverse pathological conditions. Nowadays, as printing technology progresses, its influence in the field of biomedicine is growing significantly. The printing technology has many advantages. Especially, the capability of designing sophisticated platforms is useful to detect antioxidants in various samples. The high flexibility of 3D printing technology is advantageous to create geometries for customized patient treatment. Recently, there has been increasing use of antioxidant materials for this purpose. This review provides a comprehensive overview of recent advances in printing technology-based assays to detect antioxidants and 3D printing-based antioxidant therapy in the field of tissue engineering. This review is divided into two sections. The first section highlights colorimetric assays using the inkjet-printing methods and electrochemical assays using screen-printing techniques for the determination of antioxidants. Alternative screen-printing techniques, such as xurography, roller-pen writing, stamp contact printing, and laser-scribing, are described. The second section summarizes the recent literature that reports antioxidant-based therapy using 3D printing in skin therapeutics, tissue mimetic 3D cultures, and bone tissue engineering.
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Gao Y, Peng Z, Wang K, Yan S, Lin Z, Xu X, Shi Y. Co-FeS 2/CoS 2 Heterostructured Nanomaterials for pH Sensing. SENSORS (BASEL, SWITZERLAND) 2020; 20:E5571. [PMID: 33003284 PMCID: PMC7583948 DOI: 10.3390/s20195571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 11/18/2022]
Abstract
Biosensors are widely used in production and life, and can be used in medicine, industrial production, and scientific research. Among them, the detection of pH has always received extensive attention. In this study, we demonstrate the use of a one-step hydrothermal method to prepare Co-FeS2/CoS2 nanomaterials as pH sensor (pH vs. overpotential) for the first time. The proposed pH sensor exhibits outstanding performance in KOH solutions via electrochemical methods with good stability. Overall, the results of this study not only add to the non-noble transition metal electrocatalysis research, but also identify important sensing characteristics for electrocatalysts.
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Affiliation(s)
- Yuan Gao
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (Y.G.); (Z.P.); (K.W.); (X.X.)
| | - Zehui Peng
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (Y.G.); (Z.P.); (K.W.); (X.X.)
| | - Ka Wang
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (Y.G.); (Z.P.); (K.W.); (X.X.)
| | - Shancheng Yan
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (Y.G.); (Z.P.); (K.W.); (X.X.)
| | - Zixia Lin
- Testing Center, Yangzhou University, Yangzhou 225009, China;
| | - Xin Xu
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (Y.G.); (Z.P.); (K.W.); (X.X.)
| | - Yi Shi
- School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China;
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31
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Stolwijk JA, Sauer L, Ackermann K, Nassios A, Aung T, Haerteis S, Bäumner AJ, Wegener J, Schreml S. pH sensing in skin tumors: Methods to study the involvement of GPCRs, acid-sensing ion channels and transient receptor potential vanilloid channels. Exp Dermatol 2020; 29:1055-1061. [PMID: 32658355 DOI: 10.1111/exd.14150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 12/19/2022]
Abstract
Solid tumors exhibit an inversed pH gradient with increased intracellular pH (pHi ) and decreased extracellular pH (pHe ). This inside-out pH gradient is generated via sodium/hydrogen antiporter 1, vacuolar-type H + ATPases, monocarboxylate transporters, (bi)carbonate (co)transporters and carboanhydrases. Our knowledge on how pHe -signals are sensed and what the respective receptors induce inside cells is scarce. Some pH-sensitive receptors (GPR4, GPR65/TDAG8, GPR68/OGR1, GPR132/G2A, possibly GPR31 and GPR151) and ion channels (acid-sensing ion channels ASICs, transient receptor potential vanilloid receptors TRPVs) transduce signals inside cells. As little is known on the expression and function of these pH sensors, we used immunostainings to study tissue samples from common and rare skin cancers. Our current and future work is directed towards investigating the impact of all the pH-sensing receptors in different skin tumors using cell culture techniques with selective knockdown/knockout (siRNA/CRISPR-Cas9). To study cell migration and proliferation, novel impedance-based wound healing assays have been developed and are used. The field of pH sensing in tumors and wounds holds great promise for the development of pH-targeting therapies, either against pH regulators or sensors to inhibit cell proliferation and migration.
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Affiliation(s)
- Judith A Stolwijk
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany.,Institute of Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Regensburg, Germany
| | - Lisa Sauer
- Institute of Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Regensburg, Germany
| | - Kirsten Ackermann
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Anaïs Nassios
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Thiha Aung
- Centre of Plastic, Aesthetic, Hand and Reconstructive Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Silke Haerteis
- Institute of Molecular and Cellular Anatomy, University of Regensburg, Regensburg, Germany
| | - Antje J Bäumner
- Institute of Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Regensburg, Germany
| | - Joachim Wegener
- Institute of Analytical Chemistry, Chemo- and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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Nam VB, Giang TT, Koo S, Rho J, Lee D. Laser digital patterning of conductive electrodes using metal oxide nanomaterials. NANO CONVERGENCE 2020; 7:23. [PMID: 32632474 PMCID: PMC7338299 DOI: 10.1186/s40580-020-00232-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 06/23/2020] [Indexed: 05/17/2023]
Abstract
As an alternative approach to the conventional deposition and photolithographic processes, the laser digital patterning (LDP) process, which is also known as the laser direct writing process, has attracted considerable attention because it is a non-photolithographic, non-vacuum, on-demand, and cost-effective electrode fabrication route that can be applied to various substrates, including heat-sensitive flexible substrates. The LDP process was initially developed using noble metal nanoparticles (NPs) such as Au and Ag because such materials are free from oxidation even in a nanosize configuration. Thus, the NPs must be fused together to form continuous conductive structures upon laser irradiation. However, common metals are easily oxidized at the nanoscale and exist in oxidized forms owing to the extremely large surface-to-volume ratio of NPs. Therefore, to fabricate conductive electrodes using common metal NPs via the LDP process, laser irradiation should be used to sinter the NPs and simultaneously induce additional photochemical reactions, such as reduction, and defect structure modification to increase the conductivity of the electrodes. This review summarizes recent studies on the LDP process in which metal oxide NPs, such as ITO, ZnO, CuO, and NiO, were exclusively utilized for fabricating conductive electrodes. The outlook of the LDP process for these materials is also discussed as a method that can be used together with or as a replacement for conventional ones to produce next-generation transparent conductors, sensors, and electronics.
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Affiliation(s)
- Vu Binh Nam
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
- Laser and Thermal Engineering Lab, Department of Mechanical Engineering, Gachon University, Seongnam, 13120, South Korea
| | - Trinh Thi Giang
- Laser and Thermal Engineering Lab, Department of Mechanical Engineering, Gachon University, Seongnam, 13120, South Korea
| | - Sangmo Koo
- Advanced Laser Fabrication Systems Lab, Department of Mechanical Engineering, Incheon National University, Incheon, 22012, South Korea
| | - Junsuk Rho
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea.
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea.
| | - Daeho Lee
- Laser and Thermal Engineering Lab, Department of Mechanical Engineering, Gachon University, Seongnam, 13120, South Korea.
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Patil AB, Meng Z, Wu R, Ma L, Xu Z, Shi C, Qiu W, Liu Q, Zhang Y, Lin Y, Lin N, Liu XY. Tailoring the Meso-Structure of Gold Nanoparticles in Keratin-Based Activated Carbon Toward High-Performance Flexible Sensor. NANO-MICRO LETTERS 2020; 12:117. [PMID: 34138123 PMCID: PMC7770875 DOI: 10.1007/s40820-020-00459-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 05/06/2020] [Indexed: 05/05/2023]
Abstract
Flexible biosensors with high accuracy and reliable operation in detecting pH and uric acid levels in body fluids are fabricated using well-engineered metal-doped porous carbon as electrode material. The gold nanoparticles@N-doped carbon in situ are prepared using wool keratin as both a novel carbon precursor and a stabilizer. The conducting electrode material is fabricated at 500 °C under customized parameters, which mimics A-B type (two different repeating units) polymeric material and displays excellent deprotonation performance (pH sensitivity). The obtained pH sensor exhibits high pH sensitivity of 57 mV/pH unit and insignificant relative standard deviation of 0.088%. Conversely, the composite carbon material with sp2 structure prepared at 700 °C is doped with nitrogen and gold nanoparticles, which exhibits good conductivity and electrocatalytic activity for uric acid oxidation. The uric acid sensor has linear response over a range of 1-150 µM and a limit of detection 0.1 µM. These results will provide new avenues where biological material will be the best start, which can be useful to target contradictory applications through molecular engineering at mesoscale.
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Affiliation(s)
- Aniruddha B Patil
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China.
- Department of Chemistry, M. D. College, Parel, Mumbai, 400012, India.
| | - Zhaohui Meng
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China
| | - Ronghui Wu
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China
| | - Liyun Ma
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China
| | - Zijie Xu
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China
| | - Chenyang Shi
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China
| | - Wu Qiu
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China
| | - Qiang Liu
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China
| | - Yifan Zhang
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China
| | - Youhui Lin
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China
| | - Naibo Lin
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China.
| | - Xiang Yang Liu
- Research Institute for Soft Matter and Biomimetics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Department of Physics, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China.
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore, 117542, Singapore.
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34
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Real-time monitoring of extracellular pH using a pH-potentiometric sensing SECM dual-microelectrode. Anal Bioanal Chem 2020; 412:3737-3743. [DOI: 10.1007/s00216-020-02625-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/25/2020] [Accepted: 03/27/2020] [Indexed: 02/07/2023]
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35
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De Acha N, Elosúa C, Arregui FJ. Development of an Aptamer Based Luminescent Optical Fiber Sensor for the Continuous Monitoring of Hg 2+ in Aqueous Media. SENSORS 2020; 20:s20082372. [PMID: 32331372 PMCID: PMC7219322 DOI: 10.3390/s20082372] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/16/2020] [Accepted: 04/20/2020] [Indexed: 11/25/2022]
Abstract
A fluorescent optical fiber sensor for the detection of mercury (Hg2+) ions in aqueous solutions is presented in this work. The sensor was based on a fluorophore-labeled thymine (T)-rich oligodeoxyribonucleotide (ON) sequence that was directly immobilized onto the tip of a tapered optical fiber. In the presence of mercury ions, the formation of T–Hg2+-T mismatches quenches the fluorescence emission by the labeled fluorophore, which enables the measurement of Hg2+ ions in aqueous solutions. Thus, in contrast to commonly designed sensors, neither a fluorescence quencher nor a complementary ON sequence is required. The sensor presented a response time of 24.8 seconds toward 5 × 10−12 M Hg2+. It also showed both good reversibility (higher than the 95.8%) and selectivity: the I0/I variation was 10 times higher for Hg2+ ions than for Mn2+ ions. Other contaminants examined (Co2+, Ag+, Cd2+, Ni2+, Ca2+, Pb2+, Mn2+, Zn2+, Fe3+, and Cu2+) presented an even lower interference. The limit of detection of the sensor was 4.73 × 10−13 M Hg2+ in buffer solution and 9.03 × 10−13 M Hg2+ in ultrapure water, and was also able to detect 5 × 10−12 M Hg2+ in tap water.
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Affiliation(s)
- Nerea De Acha
- Department of Electrical, Electronic and Communications Engineering, Public University of Navarra, Ed. Los Tejos, Campus Arrosadía s/n, E-31006 Pamplona, Navarra, Spain
- Correspondence: ; Tel.: +34-948-166-044
| | - César Elosúa
- Department of Electrical, Electronic and Communications Engineering, Public University of Navarra, Ed. Los Tejos, Campus Arrosadía s/n, E-31006 Pamplona, Navarra, Spain
- Institute of Smart Cities, Public University of Navarra, Ed. Jerónimo de Ayanz, Campus Arrosadía s/n, E-31006 Pamplona, Navarra, Spain
| | - Francisco J. Arregui
- Department of Electrical, Electronic and Communications Engineering, Public University of Navarra, Ed. Los Tejos, Campus Arrosadía s/n, E-31006 Pamplona, Navarra, Spain
- Institute of Smart Cities, Public University of Navarra, Ed. Jerónimo de Ayanz, Campus Arrosadía s/n, E-31006 Pamplona, Navarra, Spain
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36
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Manjakkal L, Dervin S, Dahiya R. Flexible potentiometric pH sensors for wearable systems. RSC Adv 2020; 10:8594-8617. [PMID: 35496561 PMCID: PMC9050124 DOI: 10.1039/d0ra00016g] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 03/30/2020] [Accepted: 02/15/2020] [Indexed: 12/21/2022] Open
Abstract
There is a growing demand for developing wearable sensors that can non-invasively detect the signs of chronic diseases early on to possibly enable self-health management. Among these the flexible and stretchable electrochemical pH sensors are particularly important as the pH levels influence most chemical and biological reactions in materials, life and environmental sciences. In this review, we discuss the most recent developments in wearable electrochemical potentiometric pH sensors, covering the key topics such as (i) suitability of potentiometric pH sensors in wearable systems; (ii) designs of flexible potentiometric pH sensors, which may vary with target applications; (iii) materials for various components of the sensor such as substrates, reference and sensitive electrode; (iv) applications of flexible potentiometric pH sensors, and (v) the challenges relating to flexible potentiometric pH sensors.
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Affiliation(s)
- Libu Manjakkal
- Bendable Electronics and Sensing Technologies (BEST) Group, School of Engineering, University of Glasgow G12 8QQ UK
| | - Saoirse Dervin
- Bendable Electronics and Sensing Technologies (BEST) Group, School of Engineering, University of Glasgow G12 8QQ UK
| | - Ravinder Dahiya
- Bendable Electronics and Sensing Technologies (BEST) Group, School of Engineering, University of Glasgow G12 8QQ UK
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Yoon JH, Kim SM, Park HJ, Kim YK, Oh DX, Cho HW, Lee KG, Hwang SY, Park J, Choi BG. Highly self-healable and flexible cable-type pH sensors for real-time monitoring of human fluids. Biosens Bioelectron 2019; 150:111946. [PMID: 31929084 DOI: 10.1016/j.bios.2019.111946] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/20/2019] [Accepted: 11/30/2019] [Indexed: 11/18/2022]
Abstract
Development of sensing technology with wearable chemical sensors is realizing non-invasive, real-time monitoring healthcare and disease diagnostics. The advanced sensor devices should be compact and portable for use in limited space, easy to wear on human body, and low-cost for personalized healthcare markets. Here, we report a highly sensitive, flexible, and autonomously self-healable pH sensor cable developed by weaving together two carbon fiber thread electrodes coated with mechanically robust self-healing polymers. The pH sensor cable showed excellent electrochemical performances of sensitivity, repeatability, and durability. Spontaneous and autonomous sensor healing efficiency of the pH sensor cable was demonstrated by measuring sensitivity during four cycles of cutting and healing process. The pH sensor cable could measure pH in small volumes of real human fluid samples, including urine, saliva, and sweat, and the results were similar to those of a commercial pH meter. Taken together, successful real-time pH monitoring for human sweat was demonstrated by fabricating a wearable sensing system in which the pH sensor cable was knitted into a headband integrated with wireless electronics.
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Affiliation(s)
- Jo Hee Yoon
- Department of Chemical Engineering, Kangwon National University, Samcheok, Gangwon-do, 25913, Republic of Korea
| | - Seon-Mi Kim
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Hong Jun Park
- Department of Chemical Engineering, Kangwon National University, Samcheok, Gangwon-do, 25913, Republic of Korea
| | - Yeong Kyun Kim
- Department of Chemical Engineering, Kangwon National University, Samcheok, Gangwon-do, 25913, Republic of Korea
| | - Dongyeop X Oh
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea; Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Han-Won Cho
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Kyoung G Lee
- Nano-Bio Application Team, National Nanofab Center, Daejeon, 34141, Republic of Korea
| | - Sung Yeon Hwang
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea; Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea.
| | - Jeyoung Park
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea; Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea.
| | - Bong Gill Choi
- Department of Chemical Engineering, Kangwon National University, Samcheok, Gangwon-do, 25913, Republic of Korea.
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