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Al-Shami A, Amirghasemi F, Soleimani A, Khazaee Nejad S, Ong V, Berkmen A, Ainla A, Mousavi MPS. SPOOC (Sensor for Periodic Observation of Choline): An Integrated Lab-on-a-Spoon Platform for At-Home Quantification of Choline in Infant Formula. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311745. [PMID: 38587168 DOI: 10.1002/smll.202311745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 02/19/2024] [Indexed: 04/09/2024]
Abstract
Choline is an essential micronutrient for infants' brain development and health. To ensure that infants receive the needed daily dose of choline, the U.S. Food and Drug Administration (FDA) has set requirements for choline levels in commercialized infant formulas. Unfortunately, not all families can access well-regulated formulas, leading to potential inadequacies in choline intake. Economic constraints or difficulties in obtaining formulas, exacerbated by situations like COVID-19, prompt families to stretch formulas. Accurate measurement of choline in infant formulas becomes imperative to guarantee that infants receive the necessary nutritional support. Yet, accessible tools for this purpose are lacking. An innovative integrated sensor for the periodic observation of choline (SPOOC) designed for at-home quantification of choline in infants' formulas and milk powders is reported. This system is composed of a choline potentiometric sensor and ionic-liquid reference electrode developed on laser-induced graphene (LIG) and integrated into a spoon-like device. SPOOC includes a micro-potentiometer that conducts the measurements and transmits results wirelessly to parents' mobile devices. SPOOC demonstrated rapid and accurate assessment of choline levels directly in pre-consuming infant formulas without any sample treatment. This work empowers parents with a user-friendly tool for choline monitoring promoting informed nutritional decision-making in the care of infants.
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Affiliation(s)
- Abdulrahman Al-Shami
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Farbod Amirghasemi
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Ali Soleimani
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Sina Khazaee Nejad
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Victor Ong
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Alara Berkmen
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
| | - Alar Ainla
- International Iberian Nanotechnology Laboratory, 4715-330, Braga, Portugal
| | - Maral P S Mousavi
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, 1042 Downey Way, Los Angeles, CA, 90089, USA
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2
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Stelmach E, Kalisz J, Wagner B, Maksymiuk K, Michalska A. Nanofiber Ion-Selective Membrane-Coated Carbon Paper All-Solid-State Sensors: One Stone, Two Birds. Anal Chem 2024; 96:3253-3258. [PMID: 38359329 PMCID: PMC10902807 DOI: 10.1021/acs.analchem.3c04764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Potentiometric sensors with nanostructural ion-selective membranes were prepared and tested. Electrospun nanofiber mats were applied in novel all-solid-state sensors, using carbon paper as an electronically conducting support. For the sake of simplicity, application of a solid contact layer was avoided, and redox-active impurities naturally present in the carbon paper have proven to be effective as ion-to-electron transducers. Application of a nanostructural ion-selective membrane requires an innovative approach to combine the receptor layer with the support. The nanofiber mat portion was fused with carbon paper in a hot-melt process. Applying temperature close to 120 °C for a short time (3 s) allowed binding the nanostructural ion-selective membrane with carbon paper, without significant changes in the nanofiber structure. This process was conveniently performed together with the lamination of the carbon paper support. The thus obtained, potentially disposable sensors were characterized as exhibiting highly reproducible potential readings in time as well as between sensors belonging to the same batch. The benefits of the application of nanostructural ion-selective membranes include shorter equilibration time, lower detection limit, and significantly lower material consumption. However, the nanostructural membrane is characterized by a higher electrical resistance, which is attributed to higher porosity.
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Affiliation(s)
- Emilia Stelmach
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Justyna Kalisz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Barbara Wagner
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Agata Michalska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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3
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Imanzadeh H, Sefid-Sefidehkhan Y, Afshary H, Afruz A, Amiri M. Nanomaterial-based electrochemical sensors for detection of amino acids. J Pharm Biomed Anal 2023; 230:115390. [PMID: 37079932 DOI: 10.1016/j.jpba.2023.115390] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/24/2023] [Accepted: 04/08/2023] [Indexed: 04/22/2023]
Abstract
Amino acids are the building blocks of proteins and muscle tissue. They also play a significant role in physiological processes related to energy, recovery, mood, muscle and brain function, fat burning and stimulating growth hormone or insulin secretion. Accurate determination of amino acids in biological fluids is necessary because any changes in their normal ranges in the body warn diseases like kidney disease, liver disease, type 2 diabetes and cancer. To date, many methods such as liquid chromatography, fluorescence mass spectrometry, etc. have been used for the determination of amino acids. Compared with the above techniques, electrochemical systems using modified electrodes offer a rapid, accurate, cheap, real-time analytical path through simple operations with high selectivity and sensitivity. Nanomaterials have found many interests to create smart electrochemical sensors in different application fields e.g. biomedical, environmental, and food analysis because of their exceptional properties. This review summarizes recent advances in the development of nanomaterial-based electrochemical sensors in 2017-2022 for the detection of amino acids in various matrices such as serum, urine, blood and pharmaceuticals.
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Affiliation(s)
- Hamideh Imanzadeh
- Department of Chemistry, University of Mohaghegh Ardabili, Ardabil, Iran
| | | | - Hosein Afshary
- Department of Chemistry, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Ali Afruz
- Department of Chemistry, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Mandana Amiri
- Department of Chemistry, University of Mohaghegh Ardabili, Ardabil, Iran.
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4
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Hussein OG, Ahmed DA, Abdelkawy M, Rezk MR, Mahmoud AM, Rostom Y. Novel solid-contact ion-selective electrode based on a polyaniline transducer layer for determination of alcaftadine in biological fluid. RSC Adv 2023; 13:7645-7655. [PMID: 36908536 PMCID: PMC9993128 DOI: 10.1039/d3ra00597f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 03/02/2023] [Indexed: 03/11/2023] Open
Abstract
Fabrication of a novel ion selective electrode for determining alcaftadine was achieved. The glassy carbon electrode (GCE) was utilized as a substrate in fabrication of an electrochemical sensor containing polyaniline (PANI) as an ion-to-electron transducer layer. A PVC polymeric matrix and nitrophenyl-octyl-ether were employed in designing the ion-sensing membrane (ISM). Potential stability was improved and minimization of electrical signal drift was achieved for inhibition of water layer formation at the electrode interface. Potential stability was achieved by inclusion of PANI between the electronic substrate and the ion-sensing membrane. The sensor's performance was evaluated following IUPAC recommendations. The sensor dynamic linear range was from 1.0 × 10-2 to 1.0 × 10-6 mol L-1 and it had a 6.3 × 10-7 mol L-1 detection limit. The selectivity and capabilities of the formed alcaftadine sensor were tested in the presence of its pharmaceutical formulation excipients as well as its degradation products. Additionally, the sensor was capable of quantifying the studied drug in a rabbit aqueous humor. Method's greenness profile was evaluated by the means of Analytical Greenness (AGREE) metric assessment tool.
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Affiliation(s)
- Ola G Hussein
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Future University in Egypt Cairo Egypt
| | - Dina A Ahmed
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Future University in Egypt Cairo Egypt
| | - Mohamed Abdelkawy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University Kasr El-Aini Street Cairo 11562 Egypt
| | - Mamdouh R Rezk
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University Kasr El-Aini Street Cairo 11562 Egypt
| | - Amr M Mahmoud
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University Kasr El-Aini Street Cairo 11562 Egypt
| | - Yasmin Rostom
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University Kasr El-Aini Street Cairo 11562 Egypt
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5
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Jetmore HD, Anupriya ES, Cress TJ, Shen M. Interface between Two Immiscible Electrolyte Solutions Electrodes for Chemical Analysis. Anal Chem 2022; 94:16519-16527. [DOI: 10.1021/acs.analchem.2c01416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Henry David Jetmore
- University of Illinois at Urbana−Champaign, Urbana, Illinois61801, United States
| | | | - Tanner Joe Cress
- University of Illinois at Urbana−Champaign, Urbana, Illinois61801, United States
| | - Mei Shen
- University of Illinois at Urbana−Champaign, Urbana, Illinois61801, United States
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6
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Herrero EJ, Troudt BK, Bühlmann P. The Effect of Paper on the Detection Limit of Paper-Based Potentiometric Chloride Sensors. Anal Chem 2022; 94:14898-14905. [PMID: 36260770 DOI: 10.1021/acs.analchem.2c02261] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
While paper is an excellent material for use in many other portable sensors, potentiometric paper-based sensors have been reported to perform worse than conventional rod-shaped electrodes, in particular in view of limits of detection (LODs). Reported here is an in-depth study of the lower LOD for Cl- measurements with paper-based devices comprising AgCl/Ag transducers. Contamination by Cl- from two commonly used device materials─a AgCl/Ag ink and so-called ashless filter paper─was found to increase the concentration of Cl- in paper-contained samples far above what is expected for the spontaneous dissolution of the transducer's AgCl, thereby worsening lower LODs. In addition, for the case of Ag+, the commonly hypothesized adsorption of metal cations onto filter paper was found not to significantly affect the performance of AgCl/Ag transducers. We note that in the context of chemical analysis, metal impurities of paper are often mentioned in the literature, but Cl- contamination of paper has been overlooked.
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Affiliation(s)
- Eliza J Herrero
- University of Minnesota, Department of Chemistry, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Blair K Troudt
- University of Minnesota, Department of Chemistry, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Philippe Bühlmann
- University of Minnesota, Department of Chemistry, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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7
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Role of Paper-Based Sensors in Fight against Cancer for the Developing World. BIOSENSORS 2022; 12:bios12090737. [PMID: 36140122 PMCID: PMC9496559 DOI: 10.3390/bios12090737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/25/2022] [Accepted: 08/31/2022] [Indexed: 11/17/2022]
Abstract
Cancer is one of the major killers across the globe. According to the WHO, more than 10 million people succumbed to cancer in the year 2020 alone. The early detection of cancer is key to reducing the mortality rate. In low- and medium-income countries, the screening facilities are limited due to a scarcity of resources and equipment. Paper-based microfluidics provide a platform for a low-cost, biodegradable micro-total analysis system (µTAS) that can be used for the detection of critical biomarkers for cancer screening. This work aims to review and provide a perspective on various available paper-based methods for cancer screening. The work includes an overview of paper-based sensors, the analytes that can be detected and the detection, and readout methods used.
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8
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Bhattacharya G, Fishlock SJ, Hussain S, Choudhury S, Xiang A, Kandola B, Pritam A, Soin N, Roy SS, McLaughlin JA. Disposable Paper-Based Biosensors: Optimizing the Electrochemical Properties of Laser-Induced Graphene. ACS APPLIED MATERIALS & INTERFACES 2022; 14:31109-31120. [PMID: 35767835 PMCID: PMC9284512 DOI: 10.1021/acsami.2c06350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Laser-induced graphene (LIG) on paper substrates is a desirable material for single-use point-of-care sensing with its high-quality electrical properties, low fabrication cost, and ease of disposal. While a prior study has shown how the repeated lasing of substrates enables the synthesis of high-quality porous graphitic films, however, the process-property correlation of lasing process on the surface microstructure and electrochemical behavior, including charge-transfer kinetics, is missing. The current study presents a systematic in-depth study on LIG synthesis to elucidate the complex relationship between the surface microstructure and the resulting electroanalytical properties. The observed improvements were then applied to develop high-quality LIG-based electrochemical biosensors for uric acid detection. We show that the optimal paper LIG produced via a dual pass (defocused followed by focused lasing) produces high-quality graphene in terms of crystallinity, sp2 content, and electrochemical surface area. The highest quality LIG electrodes achieved a high rate constant k0 of 1.5 × 10-2 cm s-1 and a significant reduction in charge-transfer resistance (818 Ω compared with 1320 Ω for a commercial glassy carbon electrode). By employing square wave anodic stripping voltammetry and chronoamperometry on a disposable two-electrode paper LIG-based device, the improved charge-transfer kinetics led to enhanced performance for sensing of uric acid with a sensitivity of 24.35 ± 1.55 μA μM-1 and a limit of detection of 41 nM. This study shows how high-quality, sensitive LIG electrodes can be integrated into electrochemical paper analytical devices.
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Affiliation(s)
- Gourav Bhattacharya
- School
of Engineering, Ulster University, Newtownabbey, Belfast BT37 0QB, Northern Ireland, U.K.
| | - Sam J. Fishlock
- School
of Engineering, Ulster University, Newtownabbey, Belfast BT37 0QB, Northern Ireland, U.K.
| | - Shahzad Hussain
- School
of Engineering, Ulster University, Newtownabbey, Belfast BT37 0QB, Northern Ireland, U.K.
| | - Sudipta Choudhury
- Department
of Physics, School of Natural Sciences, Shiv Nadar University, Gautam
Buddha Nagar 201314, Uttar Pradesh, India
| | - Annan Xiang
- IMRI, University of Bolton, Deane Road, Bolton BL3
5AB, U.K.
| | | | - Anurag Pritam
- Department
of Chemistry, Indian Institute of Technology
Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Navneet Soin
- School
of Engineering, Ulster University, Newtownabbey, Belfast BT37 0QB, Northern Ireland, U.K.
| | - Susanta Sinha Roy
- Department
of Physics, School of Natural Sciences, Shiv Nadar University, Gautam
Buddha Nagar 201314, Uttar Pradesh, India
| | - James A. McLaughlin
- School
of Engineering, Ulster University, Newtownabbey, Belfast BT37 0QB, Northern Ireland, U.K.
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9
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A paper-based electrochemical device for the detection of pesticides in aerosol phase inspired by nature: A flower-like origami biosensor for precision agriculture. Biosens Bioelectron 2022; 205:114119. [DOI: 10.1016/j.bios.2022.114119] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 11/18/2022]
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10
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Phoonsawat K, Ozer T, Dungchai W, Henry CS. Dual-mode ion-selective electrodes and distance-based microfluidic device for detection of multiple urinary electrolytes. Analyst 2022; 147:4517-4524. [DOI: 10.1039/d2an01220k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we developed a microfluidic paper device by combining ion-selective electrodes (ISE) and a distance-based paper device (dPAD) for simultaneous potentiometric and colorimetric detection of urine electrolytes including K+, Na+ and Cl−.
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Affiliation(s)
- Kamonchanok Phoonsawat
- Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok, 10140, Thailand
- Engineering Science Classroom, Darunsikkhalai School, King Mongkut's University of Technology Thonburi, Bangkok, 10140, Thailand
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Tugba Ozer
- Department of Bioengineering, Faculty of Chemical-Metallurgical Engineering, Yildiz Technical University, 34220 Istanbul, Turkey
| | - Wijitar Dungchai
- Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok, 10140, Thailand
| | - Charles S. Henry
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
- School of Biomedical Engineering, Colorado State University, Fort Collins, Colorado 80523, USA
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, Thailand
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12
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Xu P, Muhamad Rapidi HI, Ahmed S, Abel DK, Garcia KJ, Chen R, Iwai NT, Shen M. PEDOT/PVC-modified amperometric carbon electrodes for acetylcholine detection. Chem Commun (Camb) 2022; 58:13218-13221. [DOI: 10.1039/d2cc03946j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Selective detection of acetylcholine (ACh) with PEDOT/PVC-modified amperometric carbon electrodes.
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Affiliation(s)
- Peibo Xu
- Department of Chemistry, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Hazirah Ismah Muhamad Rapidi
- Department of Chemistry, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Sidrah Ahmed
- Department of Chemistry, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Daniel Kenneth Abel
- Department of Chemistry, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Kiersten Jade Garcia
- Department of Chemistry, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Ran Chen
- Department of Chemistry, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Nicholas Toshio Iwai
- Department of Chemistry, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Mei Shen
- Department of Chemistry, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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13
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Glasco DL, Ho NHB, Mamaril AM, Bell JG. 3D Printed Ion-Selective Membranes and Their Translation into Point-of-Care Sensors. Anal Chem 2021; 93:15826-15831. [PMID: 34812620 DOI: 10.1021/acs.analchem.1c03762] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This technical note describes a method for fabricating ion-selective membranes (ISMs) for use in potentiometric sensing by using 3D printing technology. Here, we demonstrate the versatility of this approach by fabricating ISMs and investigating their performance in both liquid-contact and solid-contact ion-selective electrode (ISE) configurations. Using 3D printed ISMs resulted in highly stable (drift of ∼17 μV/h) and highly reproducible (<1 mV deviation) measurements. Furthermore, we show the seamless translation of these membranes into reliable, carbon fiber- and paper-based potentiometric sensors for applications at the point-of-care. To highlight the modifiability of this approach, we fabricated sensors for bilirubin, an important biomarker of liver health; benzalkonium, a common preservative used in the pharmaceutical industry; and potassium, an important blood electrolyte. The ability to mass produce sensors using 3D printing is an attractive advantage over conventional methods, while also decreasing the time and cost associated with sensor fabrication.
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Affiliation(s)
- Dalton L Glasco
- Department of Chemistry, Washington State University, Pullman, Washington 99163, United States
| | - Nguyen H B Ho
- Department of Chemistry, Washington State University, Pullman, Washington 99163, United States
| | - Art Matthew Mamaril
- Department of Chemistry, Washington State University, Pullman, Washington 99163, United States
| | - Jeffrey G Bell
- Department of Chemistry, Washington State University, Pullman, Washington 99163, United States
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14
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Zhang Y, Chen M, Liu C, Chen J, Luo X, Xue Y, Liang Q, Zhou L, Tao Y, Li M, Wang D, Zhou J, Wang J. Sensitive and rapid on-site detection of SARS-CoV-2 using a gold nanoparticle-based high-throughput platform coupled with CRISPR/Cas12-assisted RT-LAMP. SENSORS AND ACTUATORS. B, CHEMICAL 2021. [PMID: 34248284 DOI: 10.1016/j.snb.2020.128905] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The outbreak of corona virus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has led to a global pandemic. The high infectivity of SARS-CoV-2 highlights the need for sensitive, rapid and on-site diagnostic assays of SARS-CoV-2 with high-throughput testing capability for large-scale population screening. The current detection methods in clinical application need to operate in centralized labs. Though some on-site detection methods have been developed, few tests could be performed for high-throughput analysis. We here developed a gold nanoparticle-based visual assay that combines with CRISPR/Cas12a-assisted RT-LAMP, which is called Cas12a-assisted RT-LAMP/AuNP (CLAP) assay for rapid and sensitive detection of SARS-CoV-2. In optimal condition, we could detect down to 4 copies/μL of SARS-CoV-2 RNA in 40 min. by naked eye. The sequence-specific recognition character of CRISPR/Cas12a enables CLAP a superior specificity. More importantly, the CLAP is easy for operation that can be extended to high-throughput test by using a common microplate reader. The CLAP assay holds a great potential to be applied in airports, railway stations, or low-resource settings for screening of suspected people. To the best of our knowledge, this is the first AuNP-based colorimetric assay coupled with Cas12 and RT-LAMP for on-site diagnosis of COVID-19. We expect CLAP assay will improve the current COVID-19 screening efforts, and make contribution for control and mitigation of the pandemic.
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Key Words
- AuNP, gold nanoparticle
- COVID-19, Corona Virus Disease 2019
- CRISPR, clustered regularly interspaced short palindromic repeats
- CRISPR/Cas
- Coronavirus disease
- DMEM, Dulbecco’s modified Eagle’s medium
- FDA, American Food and Drug Administration
- Gold nanoparticle
- HCRs, hybridization chain reactions
- High-throughput on-site detection
- LAMP, loop-mediated isothermal amplification
- Loop-mediated isothermal amplification
- NMPA, the Chinese National Medical Products Administration
- POCT, point of care testing
- RPA, recombinase polymerase amplification
- RT-qPCR, reverse transcription-real time quantitative PCR
- SARS-CoV-2, severe acute respiratory syndrome coronavirus 2
- TCEP, Tris(2-carboxyethyl) phosphine
- TEM, transmission electron microscopy
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Affiliation(s)
- Yaqin Zhang
- School of Life Sciences, Jilin University, Changchun, 130012, China
| | - Minyan Chen
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, 130118, China
| | - Chengrong Liu
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiaqi Chen
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, 130118, China
| | - Xinyi Luo
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen, 518107, China
| | - Yingying Xue
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen, 518107, China
| | - Qiming Liang
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Center of Translational Medicine, Shanghai Children's Hospital, Shanghai, 200025, China
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Li Zhou
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Di Wang
- School of Life Sciences, Jilin University, Changchun, 130012, China
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, 130118, China
| | - Jianhua Zhou
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen, 518107, China
| | - Jiasi Wang
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen, 518107, China
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15
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[Applications of microfluidic paper-based chips in environmental analysis and detection]. Se Pu 2021; 39:802-815. [PMID: 34212581 PMCID: PMC9404056 DOI: 10.3724/sp.j.1123.2020.09004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
近年来,微流控纸芯片由于低成本、便携化、检测快等优点,在需要快速检测的环境分析领域中展现出了巨大的应用前景。该综述从微流控纸芯片在环境分析中的应用角度,总结归纳了微流控纸芯片在环境分析中的最新研究进展,并展望了其在未来的发展趋势与挑战。论文内容引用150余篇源于科学引文索引(SCI)与中文核心期刊中的相关论文。该综述包括微流控纸芯片在环境检测中的优势与制造方法介绍;电化学法、荧光法、比色法、表面增强拉曼法、集成传感法等基于纸芯片的先进分析方法介绍;根据环境分析目标物种类,如重金属离子、营养盐、农药、微生物、抗生素以及其他污染物等,对纸芯片的最新应用现状进行了举例评述;基于微流控纸芯片的环境分析研究的未来发展趋势和前景展望。通过综述近期相关研究,表明微流控纸芯片从提出至今虽然只有十几年的发展历程,但其在环境分析研究中的发展却十分迅速。微流控纸芯片可以根据不同的环境条件和检测要求灵活选择制作与分析方法,实现最佳的检测效果。但是微流控纸芯片也面临一些挑战,如纸张机械强度不足、流体控制程度不佳等问题。这些问题指出了微流控纸芯片在环境检测领域的发展趋势,相信随着不断深入的研究,纸芯片将会在未来的环境分析中发挥更大作用。
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Noviana E, Ozer T, Carrell CS, Link JS, McMahon C, Jang I, Henry CS. Microfluidic Paper-Based Analytical Devices: From Design to Applications. Chem Rev 2021; 121:11835-11885. [DOI: 10.1021/acs.chemrev.0c01335] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Eka Noviana
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, Indonesia 55281
| | - Tugba Ozer
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey 34220
| | - Cody S. Carrell
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Jeremy S. Link
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Catherine McMahon
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Ilhoon Jang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- Institute of Nano Science and Technology, Hanyang University, Seoul, South Korea 04763
| | - Charles S. Henry
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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Wang F, Liu Y, Zhang M, Zhang F, He P. Home Detection Technique for Na + and K + in Urine Using a Self-Calibrated all-Solid-State Ion-Selective Electrode Array Based on Polystyrene-Au Ion-Sensing Nanocomposites. Anal Chem 2021; 93:8318-8325. [PMID: 34096282 DOI: 10.1021/acs.analchem.1c01203] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An all-solid-state ion-selective electrode (ASS-ISE) array that is portable and easily miniaturized can meet the needs of home sensing devices for long-term health monitoring. However, their stability and accuracy are affected by the multistep modification required for ASS-ISE manufacturing and the complex background signal of real samples. In this study, a four-channel ISE array with the integration of a calibration channel has been developed based on polystyrene-Au (PS-Au) ion-sensing nanocomposites (PS-Au ISE array) for the home detection of Na+ and K+. The nanocomposites combine target recognition function and ion-electron transduction function and could be modified on the channel surface by direct drop-casting, thus simplifying the preparation process and then improving the stability. Meanwhile, the integrated calibration channel could automatically deduct complex background signals in real sample analysis and thus improve the accuracy. As a result, the proposed self-calibrated PS-Au ISE array showed a near Nernstian behavior for Na+ and K+ in the range of 1 × 10-2 M-1 × 10-4 M, and the detection limits were 6.8 × 10-5 M and 5.5 × 10-5 M in artificial urine. The linear equations can be obtained according to the slopes and intercepts of Na+ and K+, and thus, the concentration of the target ions can be directly read out by combining this PS-Au ISE array with the smart electronic device. Furthermore, the detection results of Na+ and K+ in human urine agreed well with those obtained by ICP-AES, suggesting that this proposed self-calibrated PS-Au ISE array is very suitable for home smart sensing devices, facilitating the health monitoring.
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Affiliation(s)
- Fan Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P.R. China
| | - Yujing Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P.R. China
| | - Mengdi Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P.R. China
| | - Fan Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P.R. China
| | - Pingang He
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P.R. China
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Amr AEGE, Kamel AH, Almehizia AA, Sayed AYA, Elsayed EA, Abd-Rabboh HSM. Paper-Based Potentiometric Sensors for Nicotine Determination in Smokers' Sweat. ACS OMEGA 2021; 6:11340-11347. [PMID: 34056289 PMCID: PMC8153920 DOI: 10.1021/acsomega.1c00301] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 04/09/2021] [Indexed: 06/01/2023]
Abstract
Herein, we describe for the first time, the design and fabrication of a novel nicotine paper-based sensor, in which a miniaturized paper reference electrode is integrated for potentiometric measurements. The paper-based sensors were designed using printed wax barriers to define the electrochemical cell and the sample zones. The electrodes were based on the use of the ion association complexes of the nicotinium cation (Nic) with either tetraphenylborate (TPB) or 5-nitrobarbiturate (NB) counter anions as sensing materials for nicotine recognition. A poly (3,4 ethylenedioxythiophene)/poly-(styrene sulfonate) (PEDOT/PSS) conducting polymer was used as an ion-to-electron transducer. The performance characteristics of the proposed sensors were evaluated and it revealed a rapid and stable response with a Nernstian slope of 55.2 ± 0.3 and 51.2 ± 0.6 mV/decade over the linear range of 1.0 × 10-5 to 1.0 × 10-2 M and detection limits of 6.0 and 8.0 μM for [Nic/TPB] and [Nic/NB], respectively. The sensors revealed a constant response over the pH range 3.5-6.5. The designed sensors provided a portable, inexpensive, and disposable way of measuring trace levels of nicotine coming from different cigarettes and in the collected human sweat of heavy smokers. All results were compared favorably with those obtained by the standard gas chromatographic method.
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Affiliation(s)
- Abd El-Galil E. Amr
- Pharmaceutical
Chemistry Department, Drug Exploration and Development Chair (DEDC),
College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
- Applied
Organic Chemistry Department, National Research
Center, Dokki, Giza 12622, Egypt
| | - Ayman H. Kamel
- Department
of Chemistry, Faculty of Science, Ain Shams
University, Cairo 11566, Egypt
| | - Abdulrahman A. Almehizia
- Pharmaceutical
Chemistry Department, Drug Exploration and Development Chair (DEDC),
College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Y. A. Sayed
- Pharmaceutical
Chemistry Department, Drug Exploration and Development Chair (DEDC),
College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Elsayed A. Elsayed
- Zoology
Department, Faculty of Science, King Saud
University, Riyadh 11451, Saudi Arabia
- Chemistry
of Natural and Microbial Products Department, National Research Centre, Dokki, Cairo 12622, Egypt
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Public-Health-Driven Microfluidic Technologies: From Separation to Detection. MICROMACHINES 2021; 12:mi12040391. [PMID: 33918189 PMCID: PMC8066776 DOI: 10.3390/mi12040391] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 02/07/2023]
Abstract
Separation and detection are ubiquitous in our daily life and they are two of the most important steps toward practical biomedical diagnostics and industrial applications. A deep understanding of working principles and examples of separation and detection enables a plethora of applications from blood test and air/water quality monitoring to food safety and biosecurity; none of which are irrelevant to public health. Microfluidics can separate and detect various particles/aerosols as well as cells/viruses in a cost-effective and easy-to-operate manner. There are a number of papers reviewing microfluidic separation and detection, but to the best of our knowledge, the two topics are normally reviewed separately. In fact, these two themes are closely related with each other from the perspectives of public health: understanding separation or sorting technique will lead to the development of new detection methods, thereby providing new paths to guide the separation routes. Therefore, the purpose of this review paper is two-fold: reporting the latest developments in the application of microfluidics for separation and outlining the emerging research in microfluidic detection. The dominating microfluidics-based passive separation methods and detection methods are discussed, along with the future perspectives and challenges being discussed. Our work inspires novel development of separation and detection methods for the benefits of public health.
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Ding R, Cheong YH, Ahamed A, Lisak G. Heavy Metals Detection with Paper-Based Electrochemical Sensors. Anal Chem 2021; 93:1880-1888. [DOI: 10.1021/acs.analchem.0c04247] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ruiyu Ding
- College of Engineering, School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
- Nanyang Environment and Water Research Institute, Residues and Resource Reclamation Center, 1 Cleantech Loop, Cleantech, Singapore 637141, Singapore
| | - Yi Heng Cheong
- College of Engineering, School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
- Nanyang Environment and Water Research Institute, Residues and Resource Reclamation Center, 1 Cleantech Loop, Cleantech, Singapore 637141, Singapore
| | - Ashiq Ahamed
- Nanyang Environment and Water Research Institute, Residues and Resource Reclamation Center, 1 Cleantech Loop, Cleantech, Singapore 637141, Singapore
- Laboratory of Molecular Science and Engineering, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, FI-20500 Turku, Finland
| | - Grzegorz Lisak
- College of Engineering, School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
- Nanyang Environment and Water Research Institute, Residues and Resource Reclamation Center, 1 Cleantech Loop, Cleantech, Singapore 637141, Singapore
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21
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Borràs‐Brull M, Blondeau P, Riu J. Characterization and Validation of a Platinum Paper‐based Potentiometric Sensor for Glucose Detection in Saliva. ELECTROANAL 2021. [DOI: 10.1002/elan.202060221] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Marta Borràs‐Brull
- Department of Analytical and Organic Chemistry Universitat Rovira i Virgili Marcel⋅lí Domingo, 1 43007 Tarragona Spain
| | - Pascal Blondeau
- Department of Analytical and Organic Chemistry Universitat Rovira i Virgili Marcel⋅lí Domingo, 1 43007 Tarragona Spain
| | - Jordi Riu
- Department of Analytical and Organic Chemistry Universitat Rovira i Virgili Marcel⋅lí Domingo, 1 43007 Tarragona Spain
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Paper as sampling substrates and all-integrating platforms in potentiometric ion determination. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116070] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Bakirhan NK, Topal BD, Ozcelikay G, Karadurmus L, Ozkan SA. Current Advances in Electrochemical Biosensors and Nanobiosensors. Crit Rev Anal Chem 2020; 52:519-534. [DOI: 10.1080/10408347.2020.1809339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Nurgul K. Bakirhan
- Department of Analytical Chemistry, Gulhane Faculty of Pharmacy, University of Health Sciences, Ankara, Turkey
| | - Burcu D. Topal
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Goksu Ozcelikay
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Leyla Karadurmus
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
- Department of Analytical Chemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman, Turkey
| | - Sibel A. Ozkan
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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Mazurkiewicz W, Podrażka M, Jarosińska E, Kappalakandy Valapil K, Wiloch M, Jönsson‐Niedziółka M, Witkowska Nery E. Paper‐Based Electrochemical Sensors and How to Make Them (Work). ChemElectroChem 2020. [DOI: 10.1002/celc.202000512] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Wojciech Mazurkiewicz
- Institute of Physical ChemistryPolish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Marta Podrażka
- Institute of Physical ChemistryPolish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Elżbieta Jarosińska
- Institute of Physical ChemistryPolish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | | | - Magdalena Wiloch
- Institute of Physical ChemistryPolish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | | | - Emilia Witkowska Nery
- Institute of Physical ChemistryPolish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
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26
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Chitosan–Fe3O4 nanoparticle enzymatic electrodes on paper as an efficient assay for glucose and uric acid detection in biological fluids. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01105-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Yehia AM, Farag MA, Tantawy MA. A novel trimodal system on a paper-based microfluidic device for on-site detection of the date rape drug "ketamine". Anal Chim Acta 2020; 1104:95-104. [PMID: 32106962 DOI: 10.1016/j.aca.2020.01.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 01/01/2020] [Indexed: 10/25/2022]
Abstract
Paper-based microfluidic device was designed with wax-printing to combine potentiometric, fluorimetric and colorimetric detection zones. This newly developed trimodal paper chip has been used for on-site determination of ketamine hydrochloride (KET) as a date rape drug in beverages. The device employed polyaniline nano-dispersion as conducting polymer in ion sensing paper electrodes designed to fit USB plug connector. Carbon dots-gold nanoparticles and cobalt thiocyanate were used in fluorescence and color detection zones, respectively. Cellular phone's camera facilitated the on-site fluorimetric and color detection. The implemented trimodal detection system exhibited specificity for KET detection in the presence of several other beverage interferences i.e., biogenic amines. This innovative sensor brings together analytical figures of merit for effective KET detection in single aliquot of spiked beverages. The proposed paper-based chip also fulfils WHO criteria for point-of-care devices posing the proposed trimodal paper device as an active part for rapid, on-site drug diagnostics and to be applied further for other similar drugs.
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Affiliation(s)
- Ali M Yehia
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt; Chemistry Department, School of Pharmacy and Pharmaceutical Industries, Badr University in Cairo (BUC), Badr City, 11829, Cairo, Egypt.
| | - Mohamed A Farag
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt; Department of Chemistry, School of Sciences & Engineering, The American University in Cairo, New Cairo, Egypt
| | - Mahmoud A Tantawy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
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Suntornsuk W, Suntornsuk L. Recent applications of paper‐based point‐of‐care devices for biomarker detection. Electrophoresis 2019; 41:287-305. [DOI: 10.1002/elps.201900258] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 09/30/2019] [Accepted: 10/05/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Worapot Suntornsuk
- Department of Microbiology, Faculty of ScienceKing Mongkut's University of Technology Thonburi Bangkok Thailand
| | - Leena Suntornsuk
- Department of Pharmaceutical ChemistryFaculty of PharmacyMahidol University Bangkok Thailand
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Stekolshchikova AA, Radaev AV, Orlova OY, Nikolaev KG, Skorb EV. Thin and Flexible Ion Sensors Based on Polyelectrolyte Multilayers Assembled onto the Carbon Adhesive Tape. ACS OMEGA 2019; 4:15421-15427. [PMID: 31572842 PMCID: PMC6761682 DOI: 10.1021/acsomega.9b01464] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
A novel flexible ion-selective sensor for potassium and sodium detection was proposed. Flexible ion-selective electrodes with pseudo-liquid internal solution on contrary to the system with a solid contact provided a more stable analytical signal. Such advantages were achieved because of polyelectrolyte (PEI/PSS) layers adsorption on the conduct substrate with a layer-by-layer technique. Such an approach demonstrated that ion-selective electrodes save sensitivity with Nernstian dependence: 56.2 ± 1.4 mV/dec a Na+ and 56.3 ± 1.9 mV/dec a K+ , as well as a fast time of response for potassium (5 s) and sodium (8 s) was shown. The sensing platform proposed demonstrates a better time of response and is close to the Nernstian value of sensitivity with a sensor low cost. The results proposed confirm a pseudo-liquid junction for the ion-selective electrode. Biocompatibility of an ion-selective sensing platform was demonstrated at potassium potentiometric measurements in Escherichia coli biofilms. Potassium levels in a biofilm were measured with potentiometry and showed agreement with the previous results.
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Affiliation(s)
| | - Anton V. Radaev
- Chromas
Core Facility, St. Petersburg University, Research Park 2/5, Oranienbaum Highway, St. Petersburg 198504, Russian Federation
| | - Olga Yu. Orlova
- ITMO
University, Lomonosova str. 9, St. Petersburg 191002, Russian Federation
| | | | - Ekaterina V. Skorb
- ITMO
University, Lomonosova str. 9, St. Petersburg 191002, Russian Federation
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Chung S, Jennings CM, Yoon J. Distance versus Capillary Flow Dynamics‐Based Detection Methods on a Microfluidic Paper‐Based Analytical Device (μPAD). Chemistry 2019; 25:13070-13077. [DOI: 10.1002/chem.201901514] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/27/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Soo Chung
- Department of Biosystems EngineeringThe University of Arizona Tucson AZ 85721 USA
| | | | - Jeong‐Yeol Yoon
- Department of Biosystems EngineeringThe University of Arizona Tucson AZ 85721 USA
- Department of Biomedical EngineeringThe University of Arizona Tucson AZ 85721 USA
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Lim H, Jafry AT, Lee J. Fabrication, Flow Control, and Applications of Microfluidic Paper-Based Analytical Devices. Molecules 2019; 24:E2869. [PMID: 31394856 PMCID: PMC6721703 DOI: 10.3390/molecules24162869] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 11/20/2022] Open
Abstract
Paper-based microfluidic devices have advanced significantly in recent years as they are affordable, automated with capillary action, portable, and biodegradable diagnostic platforms for a variety of health, environmental, and food quality applications. In terms of commercialization, however, paper-based microfluidics still have to overcome significant challenges to become an authentic point-of-care testing format with the advanced capabilities of analyte purification, multiplex analysis, quantification, and detection with high sensitivity and selectivity. Moreover, fluid flow manipulation for multistep integration, which involves valving and flow velocity control, is also a critical parameter to achieve high-performance devices. Considering these limitations, the aim of this review is to (i) comprehensively analyze the fabrication techniques of microfluidic paper-based analytical devices, (ii) provide a theoretical background and various methods for fluid flow manipulation, and iii) highlight the recent detection techniques developed for various applications, including their advantages and disadvantages.
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Affiliation(s)
- Hosub Lim
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Korea
| | - Ali Turab Jafry
- Faculty of Mechanical Engineering, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi 23640, Pakistan.
| | - Jinkee Lee
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Korea.
- Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Korea.
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Tan EK, Au YZ, Moghaddam GK, Occhipinti LG, Lowe CR. Towards Closed-Loop Integration of Point-of-Care Technologies. Trends Biotechnol 2019; 37:775-788. [DOI: 10.1016/j.tibtech.2018.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/11/2018] [Accepted: 12/12/2018] [Indexed: 12/21/2022]
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Yakoh A, Chaiyo S, Siangproh W, Chailapakul O. 3D Capillary-Driven Paper-Based Sequential Microfluidic Device for Electrochemical Sensing Applications. ACS Sens 2019; 4:1211-1221. [PMID: 30969113 DOI: 10.1021/acssensors.8b01574] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This article describes the device design and fabrication of two different configurations (flow-through and stopped-flow) of a sequential fluid delivery platform on a microfluidic paper-based device. The developed device is capable of storing and transporting reagents sequentially to the detection channel without the need for external power. The device comprises two components: an origami folding paper (oPAD) and a movable reagent-stored pad (rPAD). This 3D capillary-driven device eliminates the undesirable procedure of multiple-step reagent manipulation in a complex assay. To demonstrate the scope of this approach, the device is used for electrochemical detection of biological species. Using a flow-through configuration, a self-calibration plot plus real sample analysis using a single buffer introduction are established for ascorbic acid detection. We further broaden the effectiveness of the device to a complex assay using a stopped-flow configuration. Unlike other electrochemical paper-based sensors in which the user is required to cut off the device inlet or rest for the whole channel saturation before measurement, herein a stopped-flow device is carefully designed to exclude the disturbance from the convective mass transport. As a proof of concept, multiple procedures for electrode modification and voltammetric determination of serotonin are illustrated. In addition, the research includes an impedimetric label-free immunosensor for α-fetoprotein using the modified stopped-flow device. The beneficial advantages of simplicity, low sample volume (1 μL), and ability to perform a complex assay qualify this innovative device for use with diverse applications.
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Affiliation(s)
| | | | - Weena Siangproh
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand
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Manbohi A, Ahmadi SH. Sensitive and selective detection of dopamine using electrochemical microfluidic paper-based analytical nanosensor. SENSING AND BIO-SENSING RESEARCH 2019. [DOI: 10.1016/j.sbsr.2019.100270] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Lindner E, Guzinski M, Khan TA, Pendley BD. Reference Electrodes with Ionic Liquid Salt Bridge: When Will These Innovative Novel Reference Electrodes Gain Broad Acceptance? ACS Sens 2019; 4:549-561. [PMID: 30762347 DOI: 10.1021/acssensors.8b01651] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
In this paper, we raise questions that researchers have to ask if they intend to replace a conventional reference electrode with an ionic liquid-based reference electrode and try to answer these questions based on our experiences and literature data. Among these questions, the most important is which ionic liquid should be used. However, beyond the chemical composition of the ionic liquid, to realize all the potential benefits of ionic-liquid based reference electrodes, there are additional, equally important considerations. Through examples we will show the importance of the (i) purity of the ionic liquid and the consequences of deviations from its stoichiometric salt composition, (ii) form of implementation of the ionic liquid-based reference electrode membrane (free-flowing salt bridge, or ionic liquid embedded in a membrane), (iii) membrane/gelling agent material and its composition, and (iv) experimental conditions (steady state or flowing conditions) under which it will be used. Finally, we recommend methods to test the performance criteria of the ionic liquid-based reference electrodes.
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Affiliation(s)
- Ernő Lindner
- Department of Biomedical Engineering, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Marcin Guzinski
- Department of Biomedical Engineering, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Taskia A. Khan
- Department of Biomedical Engineering, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Bradford D. Pendley
- Department of Biomedical Engineering, The University of Memphis, Memphis, Tennessee 38152, United States
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Bell JG, Mousavi MP, Abd El-Rahman MK, Tan EK, Homer-Vanniasinkam S, Whitesides GM. Paper-based potentiometric sensing of free bilirubin in blood serum. Biosens Bioelectron 2019; 126:115-121. [DOI: 10.1016/j.bios.2018.10.055] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 10/04/2018] [Accepted: 10/25/2018] [Indexed: 12/14/2022]
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Rafatmah E, Hemmateenejad B. Fabrication of the First Disposable Three‐dimensional Paper‐based Concentration Cell as Ammonia Sensor with a New Method for Paper Hydrophobization by Laser Patterned Parafilm®. ELECTROANAL 2019. [DOI: 10.1002/elan.201800289] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Yew M, Ren Y, Koh KS, Sun C, Snape C. A Review of State-of-the-Art Microfluidic Technologies for Environmental Applications: Detection and Remediation. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1800060. [PMID: 31565355 PMCID: PMC6383963 DOI: 10.1002/gch2.201800060] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/09/2018] [Indexed: 05/17/2023]
Abstract
Microfluidic systems have advanced beyond natural and life science applications and lab-on-a-chip uses. A growing trend of employing microfluidic technologies for environmental detection has emerged thanks to the precision, time-effectiveness, and cost-effectiveness of advanced microfluidic systems. This paper reviews state-of-the-art microfluidic technologies for environmental applications, such as on-site environmental monitoring and detection. Microdevices are extensively used in collecting environmental samples as a means to facilitate detection and quantification of targeted components with minimal quantities of samples. Likewise, microfluidic-inspired approaches for separation and treatment of contaminated water and air, such as the removal of heavy metals and waterborne pathogens from wastewater and carbon capture are also investigated.
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Affiliation(s)
- Maxine Yew
- Department of MechanicalMaterials and Manufacturing EngineeringUniversity of Nottingham Ningbo China199 Taikang East Road315100NingboChina
| | - Yong Ren
- Department of MechanicalMaterials and Manufacturing EngineeringUniversity of Nottingham Ningbo China199 Taikang East Road315100NingboChina
| | - Kai Seng Koh
- School of Engineering and Physical SciencesHeriot‐Watt University MalaysiaNo. 1 Jalan Venna P5/2, Precinct 562200PutrajayaMalaysia
| | - Chenggong Sun
- Faculty of EngineeringUniversity of NottinghamThe Energy Technologies Building, Jubilee CampusNottinghamNG7 2TUUK
| | - Colin Snape
- Faculty of EngineeringUniversity of NottinghamThe Energy Technologies Building, Jubilee CampusNottinghamNG7 2TUUK
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Shitanda I, Komoda M, Hoshi Y, Itagaki M. Screen-printed Paper-based Three-electrode System with Long-term Stable and Instantaneously Usable Reference Electrode. CHEM LETT 2018. [DOI: 10.1246/cl.180809] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Isao Shitanda
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Masato Komoda
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yoshinao Hoshi
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Masayuki Itagaki
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
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Battu S, Itagi M, Manzoor Bhat Z, Khaire S, Kottaichamy AR, Sannegowda LK, Thimmappa R, Thotiyl MO. Metal Coordination Polymer Framework Governed by Heat of Hydration for Noninvasive Differentiation of Alkali Metal Series. Anal Chem 2018; 90:12917-12922. [PMID: 30289243 DOI: 10.1021/acs.analchem.8b03541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We illustrate that the extent of hydration and consequently the heat of hydration of alkali metal ions can be utilized to control their insertion/deinsertion chemistry in a redox active metal coordination polymer framework (CPF) electrode. The formal redox potential of CPF electrode for cation intercalation is inversely correlated to hydrated ionic radii, with clear distinction between the intercalation of ions across alkali metal series. This leads to noninvasive identification and differentiation of cations in the alkali metal series by utilizing a single sensing platform.
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Affiliation(s)
- Shateesh Battu
- Department of Chemistry , Indian Institute of Science Education and Research , Dr. Homibhaba Road , Pune , India , 411008
| | - Mahesh Itagi
- Department of Chemistry , Indian Institute of Science Education and Research , Dr. Homibhaba Road , Pune , India , 411008.,Department of Chemistry , VSK University , Bellary , Karnataka 583104 , India
| | - Zahid Manzoor Bhat
- Department of Chemistry , Indian Institute of Science Education and Research , Dr. Homibhaba Road , Pune , India , 411008
| | - Siddhi Khaire
- Department of Chemistry , Indian Institute of Science Education and Research , Dr. Homibhaba Road , Pune , India , 411008
| | - Alagar Raja Kottaichamy
- Department of Chemistry , Indian Institute of Science Education and Research , Dr. Homibhaba Road , Pune , India , 411008
| | | | - Ravikumar Thimmappa
- Department of Chemistry , Indian Institute of Science Education and Research , Dr. Homibhaba Road , Pune , India , 411008
| | - Musthafa Ottakam Thotiyl
- Department of Chemistry , Indian Institute of Science Education and Research , Dr. Homibhaba Road , Pune , India , 411008
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42
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Fu LM, Wang YN. Detection methods and applications of microfluidic paper-based analytical devices. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.08.018] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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In-field determination of soil ion content using a handheld device and screen-printed solid-state ion-selective electrodes. PLoS One 2018; 13:e0203862. [PMID: 30252859 PMCID: PMC6155443 DOI: 10.1371/journal.pone.0203862] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 08/29/2018] [Indexed: 11/19/2022] Open
Abstract
Small-holding farmers in the developing world suffer from sub-optimal crop yields because they lack a soil diagnostic system that is affordable, usable, and actionable. This paper details the fabrication and characterization of an integrated point-of-use soil-testing system, comprised of disposable ion-selective electrode strips and a handheld electrochemical reader. Together, the strips and reader transduce soil ion concentrations into to an alphanumeric output that can be communicated via text message to a central service provider offering immediate, customized fertilizer advisory. The solid-state ion-selective electrode (SS-ISE) strips employ a two-electrode design with screen-printable carbon nanotube ink serving as the electrical contacts for the working and reference electrodes. The working electrode comprises a plasticizer-free butyl acrylate ion-selective membrane (ISM), doped with an ion-selective ionophore and lipophilic salt. Meanwhile, the reference electrode includes a screen-printed silver-silver chloride ink and a polyvinyl-butyral membrane, which is doped with sodium chloride for stable reference potentials. As a proof of concept, potassium-selective electrodes are studied, given potassium’s essential role in plant growth and reproduction. The ISE-based system is reproducibly manufactured to yield a Nernstian response with a sub-micromolar detection limit (pK+ of 5.18 ± 0.08) and near-Nernstian sensitivity (61 mV/decade) in the presence of a 0.02 M strontium chloride extraction solution. Analysis of soil samples using the printed electrodes and reader yielded a correlation coefficient of 𝑅2 = 0.89 with respect to values measured via inductively coupled plasma atomic emission spectroscopy (ICP-AES). The reliable performance of this system is encouraging toward its deployment for soil nutrient management in resource-limited environments.
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Abstract
Point-of-care and in-field technologies for rapid, sensitive and selective detection of molecular biomarkers have attracted much interest. Rugged bioassay technology capable of fast detection of markers for pathogens and genetic diseases would in particular impact the quality of health care in the developing world, but would also make possible more extensive screening in developed countries to tackle problems such as those associated with water and food quality, and tracking of infectious organisms in hospitals and clinics. Literature trends indicate an increasing interest in the use of nanomaterials, and in particular luminescent nanoparticles, for assay development. These materials may offer attributes for development of assays and sensors that could achieve improvements in analytical figures of merit, and provide practical advantages in sensitivity and stability. There is opportunity for cost-efficiency and technical simplicity by implementation of luminescent nanomaterials as the basis for transduction technology, when combined with the use of paper substrates, and the ubiquitous availability of cell phone cameras and associated infrastructure for optical detection and transmission of results. Luminescent nanoparticles have been described for a broad range of bioanalytical targets including small molecules, oligonucleotides, peptides, proteins, saccharides and whole cells (e.g., cancer diagnostics). The luminescent nanomaterials that are described herein for paper-based bioassays include metal nanoparticles, quantum dots and lanthanide-doped nanocrystals. These nanomaterials often have broad and strong absorption and narrow emission bands that improve opportunity for multiplexed analysis, and can be designed to provide emission at wavelengths that are efficiently processed by conventional digital cameras. Luminescent nanoparticles can be embedded in paper substrates that are designed to direct fluid flow, and the resulting combination of technologies can offer competitive analytical performance at relatively low cost.
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Affiliation(s)
- Qiang Ju
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, P.R. China. and Chemical Sensors Group, Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, ON, Canada L5L 1C6.
| | - M Omair Noor
- Chemical Sensors Group, Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, ON, Canada L5L 1C6.
| | - Ulrich J Krull
- Chemical Sensors Group, Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, ON, Canada L5L 1C6.
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Zhen XV, Rousseau CR, Bühlmann P. Redox Buffer Capacity of Ion-Selective Electrode Solid Contacts Doped with Organometallic Complexes. Anal Chem 2018; 90:11000-11007. [DOI: 10.1021/acs.analchem.8b02595] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xue V. Zhen
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Celeste R. Rousseau
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Philippe Bühlmann
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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Mousavi MPS, Ainla A, Tan EKW, K Abd El-Rahman M, Yoshida Y, Yuan L, Sigurslid HH, Arkan N, Yip MC, Abrahamsson CK, Homer-Vanniasinkam S, Whitesides GM. Ion sensing with thread-based potentiometric electrodes. LAB ON A CHIP 2018; 18:2279-2290. [PMID: 29987296 DOI: 10.1039/c8lc00352a] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Potentiometric sensing of ions with ion-selective electrodes (ISEs) is a powerful technique for selective and sensitive measurement of ions in complex matrices. The application of ISEs is generally limited to laboratory settings, because most commercially available ISEs and reference electrodes are large, delicate, and expensive, and are not suitable for point-of-use or point-of-care measurements. This work utilizes cotton thread as a substrate for fabrication of robust and miniaturized ISEs that are suitable for point-of-care or point-of-use applications. Thread-based ISEs selective for Cl-, K+, Na+, and Ca2+ were developed. The cation-selective ISEs were fabricated by coating the thread with a surfactant-free conductive ink (made of carbon black) and then coating the tip of the conductive thread with the ion-selective membrane. The Cl- ISE was fabricated by coating the thread with an Ag/AgCl ink. These sensors exhibited slopes (of electrical potential vs. log concentration of target ion), close to the theoretically-expected values, over four orders of magnitude in concentrations of ions. Because thread is mechanically strong, the thread-based electrodes can be used in multiple-use applications as well as single-use applications. Multiple thread-based sensors can be easily bundled together to fabricate a customized sensor for multiplexed ion-sensing. These electrodes require volumes of sample as low as 200 μL. The application of thread-based ISEs is demonstrated in the analysis of ions in soil, food, and dietary supplements (Cl- in soil/water slurry, K+ and Na+ in coconut water, and Ca2+ in a calcium supplement), and in detection of physiological electrolytes (K+ and Na+ in blood serum and urine, with sufficient accuracy for clinical diagnostics).
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Affiliation(s)
- Maral P S Mousavi
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA.
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Miller BS, Parolo C, Turbé V, Keane CE, Gray ER, McKendry RA. Quantifying Biomolecular Binding Constants using Video Paper Analytical Devices. Chemistry 2018; 24:9783-9787. [PMID: 29772094 PMCID: PMC6055620 DOI: 10.1002/chem.201802394] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Indexed: 01/08/2023]
Abstract
A novel ultra-low-cost biochemical analysis platform to quantify protein dissociation binding constants and kinetics using paper microfluidics is reported. This approach marries video imaging with one of humankind's oldest materials: paper, requiring no large, expensive laboratory equipment, complex microfluidics or external power. Temporal measurements of nanoparticle-antibody conjugates binding on paper is found to follow the Langmuir Adsorption Model. This is exploited to measure a series of antibody-antigen dissociation constants on paper, showing excellent agreement with a gold-standard benchtop interferometer. The concept is demonstrated with a camera and low-end smartphone, 500-fold cheaper than the reference method, and can be multiplexed to measure ten reactions in parallel. These findings will help to widen access to quantitative analytical biochemistry, for diverse applications spanning disease diagnostics, drug discovery, and environmental analysis in resource-limited settings.
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Affiliation(s)
- Benjamin S. Miller
- London Centre for NanotechnologyUniversity College London17–19 Gordon StreetLondonWC1H 0AHUK
- Division of MedicineUniversity College London, Cruciform BuildingGower StreetLondonWC1E 6BTUK
| | - Claudio Parolo
- London Centre for NanotechnologyUniversity College London17–19 Gordon StreetLondonWC1H 0AHUK
| | - Valérian Turbé
- London Centre for NanotechnologyUniversity College London17–19 Gordon StreetLondonWC1H 0AHUK
- Division of MedicineUniversity College London, Cruciform BuildingGower StreetLondonWC1E 6BTUK
| | - Candice E. Keane
- London Centre for NanotechnologyUniversity College London17–19 Gordon StreetLondonWC1H 0AHUK
- Division of MedicineUniversity College London, Cruciform BuildingGower StreetLondonWC1E 6BTUK
| | - Eleanor R. Gray
- London Centre for NanotechnologyUniversity College London17–19 Gordon StreetLondonWC1H 0AHUK
| | - Rachel A. McKendry
- London Centre for NanotechnologyUniversity College London17–19 Gordon StreetLondonWC1H 0AHUK
- Division of MedicineUniversity College London, Cruciform BuildingGower StreetLondonWC1E 6BTUK
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Tang W, Wang Z, Yu J, Zhang F, He P. Internal Calibration Potentiometric Aptasensors for Simultaneous Detection of Hg 2+, Cd 2+, and As 3+ Based on a Screen-Printed Carbon Electrodes Array. Anal Chem 2018; 90:8337-8344. [PMID: 29938501 DOI: 10.1021/acs.analchem.7b04150] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An all-solid-state potentiometric aptasensor array based on a multichannel disposable screen-printed carbon electrode (SPCE) was demonstrated for the simultaneous detection of Hg2+, Cd2+, and As3+ by open circuit potential (OCP) technology. The potential of the channel with an internal calibration DNA sequence (IC-DNA) was employed as the internal calibration potential (ICP) to subtract the background signal generated by the detection system, providing a built-in correction methodology. As a result, the developed aptasensor array showed high sensitivity and accuracy for detecting Hg2+, Cd2+, and As3+ without mutual interference or interference from other ions. The linear response ranged from 2.5 pM to 2.5 μM, and the detection limits for Hg2+, Cd2+, and As3+ were 2.0, 0.62, and 0.17 pM, respectively. Furthermore, the potentiometric aptasensor array was successfully applied for the simultaneous detection of three ions in real samples. The results obtained from the developed approach agreed well with the results obtained from inductively coupled plasma mass spectrometry.
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Affiliation(s)
- Wanxin Tang
- School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , P. R. China
| | - Zhenzhen Wang
- School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , P. R. China
| | - Juan Yu
- School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , P. R. China
| | - Fan Zhang
- School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , P. R. China
| | - Pingang He
- School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , P. R. China
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Mendecki L, Mirica KA. Conductive Metal-Organic Frameworks as Ion-to-Electron Transducers in Potentiometric Sensors. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19248-19257. [PMID: 29792413 DOI: 10.1021/acsami.8b03956] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This paper describes an unexplored property of conductive metal-organic frameworks (MOFs) as ion-to-electron transducers in the context of potentiometric detection. Several conductive two-dimensional MOF analogues were drop-cast onto a glassy carbon electrode and then covered with an ion-selective membrane to form a potentiometric sensor. The resulting devices exhibited excellent sensing properties toward anions and cations, characterized by a near-Nernstian response and over 4 orders of magnitude linear range. Impedance and chronopotentiometric measurements revealed the presence of large bulk capacitance (204 ± 2 μF) and good potential stability (drift of 11.1 ± 0.5 μA/h). Potentiometric water test and contact angle measurements showed that this class of materials exhibited hydrophobicity and inhibited the formation of water layer at the electrode/membrane interface, resulting in a highly stable sensing response with a potential drift as low as 11.1 μA/h. The property of ion-to-electron transduction of conductive MOFs may form the basis for the development of this class of materials as promising components within ion-selective electrodes.
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Affiliation(s)
- Lukasz Mendecki
- Burke Laboratory , Dartmouth College , 41 College Street , Hanover , New Hampshire 03755 , United States
| | - Katherine A Mirica
- Burke Laboratory , Dartmouth College , 41 College Street , Hanover , New Hampshire 03755 , United States
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Brown MS, Ashley B, Koh A. Wearable Technology for Chronic Wound Monitoring: Current Dressings, Advancements, and Future Prospects. Front Bioeng Biotechnol 2018; 6:47. [PMID: 29755977 PMCID: PMC5932176 DOI: 10.3389/fbioe.2018.00047] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 04/03/2018] [Indexed: 12/14/2022] Open
Abstract
Chronic non-healing wounds challenge tissue regeneration and impair infection regulation for patients afflicted with this condition. Next generation wound care technology capable of in situ physiological surveillance which can diagnose wound parameters, treat various chronic wound symptoms, and reduce infection at the wound noninvasively with the use of a closed loop therapeutic system would provide patients with an improved standard of care and an accelerated wound repair mechanism. The indicating biomarkers specific to chronic wounds include blood pressure, temperature, oxygen, pH, lactate, glucose, interleukin-6 (IL-6), and infection status. A wound monitoring device would help decrease prolonged hospitalization, multiple doctors' visits, and the expensive lab testing associated with the diagnosis and treatment of chronic wounds. A device capable of monitoring the wound status and stimulating the healing process is highly desirable. In this review, we discuss the impaired physiological states of chronic wounds and explain the current treatment methods. Specifically, we focus on improvements in materials, platforms, fabrication methods for wearable devices, and quantitative analysis of various biomarkers vital to wound healing progress.
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Affiliation(s)
- Matthew S Brown
- Department of Biomedical Engineering, State University of New York at Binghamton University, Binghamton, NY, United States
| | - Brandon Ashley
- Department of Biomedical Engineering, State University of New York at Binghamton University, Binghamton, NY, United States
| | - Ahyeon Koh
- Department of Biomedical Engineering, State University of New York at Binghamton University, Binghamton, NY, United States
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