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Uhlikova N, Almeida MIGS, McKelvie ID, Kolev SD. Microfluidic paper-based analytical device for the speciation of inorganic nitrogen species. Talanta 2024; 271:125671. [PMID: 38306810 DOI: 10.1016/j.talanta.2024.125671] [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: 08/21/2023] [Revised: 01/08/2024] [Accepted: 01/13/2024] [Indexed: 02/04/2024]
Abstract
A microfluidic paper-based analytical device (μPAD) utilizing gas-diffusion separation and solid-phase reduction was developed for the first time for the determination of both ammonium and nitrate, which are the dominant inorganic nitrogen species in environmental waters. The device consists of 3 filter paper layers accommodating the sample, reagent and detection zones. The reagent zone is separated from the detection zone by a semipermeable hydrophobic membrane and acts as a solid-phase reactor where nitrate is reduced to ammonia by Devarda's alloy microparticles, integrated into a μPAD for the first time. The detection zone incorporates the acid-base indicators bromothymol blue (BTB) or nitrazine yellow (NY) and changes colour in two steps. Initially the colour change is caused by ammonia generated by the reaction of ammonium and sodium hydroxide in the sample zone. This colour change is followed by a subsequent colour change as a result of the ammonia produced by the reduction of nitrate by the Devarda's alloy microparticles. The corresponding reflectance value changes are used for the quantification of the two inorganic nitrogen species in the ranges 6.5-100.0 or 2.1-15.0 mg N L-1 for ammonium and 18.2-100.0 or 4.2-15.0 mg N L-1 for nitrate when BTB or NY are used, respectively. Under optimal conditions the limits of quantification of ammonium and nitrate in the case of BTB were determined as 6.5 and 18.2 mg N L-1, respectively, while the corresponding values in the case of NY were found to be 2.1 and 4.2 mg N L-1. The newly developed μPAD was stable for 62 days when stored in a freezer and 1 day at ambient temperature. It was validated with a certified reference material and successfully applied to the determination of ammonium and nitrate in spiked environmental water samples and soil extracts.
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Affiliation(s)
- Natalie Uhlikova
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
| | - M Inês G S Almeida
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
| | - Ian D McKelvie
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
| | - Spas D Kolev
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia; Department of Chemical Engineering, The University of Melbourne, Victoria 3010, Australia; Sofia University "St. Kl. Ohridski", Faculty of Chemistry and Pharmacy, 1 James Bourchier Blvd., Sofia 1164, Bulgaria.
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2
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Man Y, Yu K, Tan H, Jin X, Tao J, Pan L. A microfluidic concentration gradient colorimetric system for rapid detection of nitrite in surface water. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133133. [PMID: 38043431 DOI: 10.1016/j.jhazmat.2023.133133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/14/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
A microfluidic concentration gradient colorimetric detection system consisting of a microfluidic concentration gradient colorimetric detection chip, a self-built colorimetric signal acquisition box and a self-written smartphone APP was constructed for the rapid, in-field and visual quantitative detection of nitrite. Specifically, nitrite with initial concentration of C0 can be automatically diluted into 8 concentration gradients characterized by arithmetic series, and the concentrations are 0, 0.20 C0, 0.33 C0, 0.46 C0, 0.59 C0, 0.72 C0, 0.86 C0 and C0. The colorimetric signal acquisition box avoided the interference of light spots on data acquisition. Under the optimal experimental conditions, the quantitative detection of nitrite was achieved by the proposed two-step colorimetric method based on the inhibition of AuNPs signal amplification, and the limit of detection (LOD) was 0.14 mg/L. The microfluidic concentration gradient colorimetric detection system was able to detect nitrite as low as 0.43 mg/L and showed a good specificity. The practical application was investigated by analyzing 10 actual samples of river and lake water, pure water and tap water. The recoveries of the microfluidic concentration gradient colorimetric detection system ranged from 94.92% to 105.60%, which indicates that the method had a good application prospect in the detection of practical samples.
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Affiliation(s)
- Yan Man
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China; Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, China.
| | - Kaijia Yu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Inner Mongolia, China
| | - Huimin Tan
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China; Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, China
| | - Xinxin Jin
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China; Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, China
| | - Jing Tao
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China; Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, China
| | - Ligang Pan
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China; Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, China
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Jantra J, Arsawiset S, Teepoo S, Keeratirawee K. Rapid colorimetric assay based on the oxidation of 2,2-azino-bis(3-ethylbenzothiazoline)-6-sulfonic acid-diammonium salt for nitrite detection in meat products. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2024; 59:72-80. [PMID: 38146233 DOI: 10.1080/03601234.2023.2297639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
This work developed a rapid colorimetric method for nitrite detection in meat products. The detection was based on the reaction of nitrite with 60 mM HCl to produce radicals which further oxidized ABTS (50 µM) to form a water-soluble blue-green product (ABTS•+). The absorbance was measured at a maximum absorption wavelength of 412.5 nm. Parameters such as concentration of HCl, concentration of ABTS and reaction time were evaluated. The absorbance was linearly proportional to the concentration of nitrite (0.1-20 µM) with the limit of detection of 0.34 µM. The proposed method was a time-saving assay since it required only 2 min to complete one measurement. There was no effect of the interference produced by other ions. The assay was robust with 2.5%RSD (n = 50). In meat product samples, high accuracy was observed with the recoveries between 100 ± 2.2% and 105 ± 3.7%. The amount of nitrite in meat products detected by the ABTS method was found in the range of 5.41 - 7.62 mg/kg. The conventional Griess method was applied to determine nitrite in the same meat products. There was no statistically significant difference between the two methods (P = 0.05).
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Affiliation(s)
- Jongjit Jantra
- King Mongkut's Institute of Technology Ladkrabang, Prince of Chumphon Campus, Pathio, Chumphon, Thailand
| | - Supattra Arsawiset
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology, Thanyaburi, Pathum Thani, Thailand
| | - Siriwan Teepoo
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology, Thanyaburi, Pathum Thani, Thailand
| | - Kanchalar Keeratirawee
- King Mongkut's Institute of Technology Ladkrabang, Prince of Chumphon Campus, Pathio, Chumphon, Thailand
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4
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Li Z, Liu H, Wang D, Zhang M, Yang Y, Ren TL. Recent advances in microfluidic sensors for nutrients detection in water. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2022.116790] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Chavez DE, Tappan BC, Kuehl VA, Schmalzer AM, Leonard PW, Wu R, Imler GH, Parrish DA. [3+2] click chemistry approach to tetrazine containing polymers. RSC Adv 2022; 12:28490-28493. [PMID: 36320529 PMCID: PMC9535468 DOI: 10.1039/d2ra05339j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 09/27/2022] [Indexed: 11/22/2022] Open
Abstract
We report a [3+2] cycloaddition using 3,6-bis-propargyloxy-1,2,4,5-tetrazine and azides to synthesize energetic polymers containing 1,2,4,5-tetrazine within the scaffold. This work also includes [3+2] cycloaddition to crosslink azide containing glycidyl azide polymer (GAP). These reactions provide pathways for incorporation of 1,2,4,5-tetrazine into novel energetic materials using click-chemistry and provide an alternative polymer curing approach.
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Affiliation(s)
- David E. Chavez
- Q Division, Los Alamos National LaboratoryLos Alamos 87545NMUSA
| | - Bryce C. Tappan
- Q Division, Los Alamos National LaboratoryLos Alamos 87545NMUSA
| | | | | | | | - Ruilian Wu
- Q Division, Los Alamos National LaboratoryLos Alamos 87545NMUSA
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Rajasulochana P, Ganesan Y, Kumar PS, Mahalaxmi S, Tasneem F, Ponnuchamy M, Kapoor A. Paper-based microfluidic colorimetric sensor on a 3D printed support for quantitative detection of nitrite in aquatic environments. ENVIRONMENTAL RESEARCH 2022; 208:112745. [PMID: 35051426 DOI: 10.1016/j.envres.2022.112745] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 12/23/2021] [Accepted: 01/13/2022] [Indexed: 05/24/2023]
Abstract
To ensure safe drinking water, it is necessary to have a simple method by which the probable pollutants are detected at the point of distribution. Nitrite contamination in water near agricultural locations could be an environmental concern due to its deleterious effects on the human population. The development of a frugal paper-based microfluidic sensor could be desirable to achieve the societal objective of providing safe drinking water. This work describes the development of a facile and cost-effective microfluidic paper-based sensor for quantitative estimation of nitrite in aquatic environments. A simple punching machine was used for fabrication and rapid prototyping of paper-based sensors without the need of any specialized equipment or patterning techniques. A reusable 3D printed platform served as the support for simultaneous testing of multiple samples. The nitrite estimation was carried out with smartphone-assisted digital image acquisition and colorimetric analysis. Under optimized experimental conditions, the variation in average grayscale intensity with concentration of nitrite was linear in the range from 0.1 to 10 ppm. The limits of detection and quantitation were 0.12 ppm and 0.35 ppm respectively. The reproducibility, expressed as relative standard deviation was 1.31%. The selectivity of nitrite detection method was determined by performing interference studies with commonly existing co-ions in water, such as bicarbonates, chloride and sulphate. The paper-based sensor was successfully applied for estimation of nitrite in actual water samples and showed high recoveries in the range of 83.5-109%. The results were in good agreement with those obtained using spectrophotometry. The developed paper-based sensor method, by virtue of its simplicity, ease of fabrication and use, could be readily extended for detection of multiple analytes in resource-limited settings.
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Affiliation(s)
- P Rajasulochana
- Department of Genetic Engineering, Bharath Institute of Science and Technology, Chennai, Tamil Nadu, 600073, India
| | - Yaswanth Ganesan
- Department of Chemical Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - S Mahalaxmi
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India
| | - Fahira Tasneem
- Department of Genetic Engineering, Bharath Institute of Science and Technology, Chennai, Tamil Nadu, 600073, India
| | - Muthamilselvi Ponnuchamy
- Department of Chemical Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Ashish Kapoor
- Department of Chemical Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
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Zhang J, Yang J, Chen J, Zhu Y, Hu K, Ma Q, Zuo Y. A novel propylene glycol alginate gel based colorimetric tube for rapid detection of nitrite in pickled vegetables. Food Chem 2022; 373:131678. [PMID: 34863604 DOI: 10.1016/j.foodchem.2021.131678] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 11/06/2021] [Accepted: 11/22/2021] [Indexed: 12/20/2022]
Abstract
The detection of nitrite is of great significance because it is closely related to food safety. In this work, a rapid colorimetric method was developed for nitrite detection based on the reaction of propylene glycol alginate (PGA) gel interface. In the reaction of nitrite and 4-Aminoacetophenone, diazo compound formed, which could be further transformed to purplish red compound by reacting with N-(1-Naphthyl)ethylenediamine (NED). Nitrite exhibited a linear relationship with the grayscale of the gel interface in the range of 0.3-9 μg mL-1 with a detection limit of 0.3 μg mL-1. The method was applied to detect nitrite in four types of pickled vegetables with recovery of 80.9-119.02% and relative standard deviation of 0.11-6.73%. Notably, the detection process can be accomplished within 5 min. The proposed colorimetric method exhibited advantages of simplicity, quickness and sensitivity, showing potential application prospects for the real-time and on-site detection of nitrite in pickled vegetables.
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Affiliation(s)
- Jing Zhang
- College of Life Science, Sichuan Normal University, Chengdu 610101, China; Bioengineering College of Chongqing University, Chongqing 400044, China
| | - Jianfei Yang
- College of Life Science, Sichuan Normal University, Chengdu 610101, China; College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Jing Chen
- Department of Quality Management and Inspection, Yibin University, Yibin 644000, China
| | - Yuanting Zhu
- College of Life Science, Sichuan Normal University, Chengdu 610101, China
| | - Kun Hu
- College of Life Science, Sichuan Normal University, Chengdu 610101, China
| | - Qian Ma
- College of Life Science, Sichuan Normal University, Chengdu 610101, China
| | - Yong Zuo
- College of Life Science, Sichuan Normal University, Chengdu 610101, China; College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China.
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Bendicho C, Lavilla I, Pena-Pereira F, de la Calle I, Romero V. Nanomaterial-Integrated Cellulose Platforms for Optical Sensing of Trace Metals and Anionic Species in the Environment. SENSORS (BASEL, SWITZERLAND) 2021; 21:E604. [PMID: 33467146 PMCID: PMC7830103 DOI: 10.3390/s21020604] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 12/18/2022]
Abstract
The development of disposable sensors that can be easily adapted to every analytical problem is currently a hot topic that is revolutionizing many areas of science and technology. The need for decentralized analytical measurements at real time is increasing for solving problems in areas such as environment pollution, medical diagnostic, food quality assurance, etc., requiring fast action. Despite some current limitations of these devices, such as insufficient detection capability at (ultra)trace level and risk of interferent effects due to matrix, they allow low-cost analysis, portability, low sample consumption, and fast response. In the last years, development of paper-based analytical devices has undergone a dramatic increase for on-site detection of toxic metal ions and other pollutants. Along with the great availability of cellulose substrates, the immobilization of receptors providing enhanced recognition ability, such as a variety of nanomaterials, has driven the design of novel sensing approaches. This review is aimed at describing and discussing the different possibilities arisen with the use of different nanoreceptors (e.g., plasmonic nanoparticles, quantum dots, carbon-based fluorescent nanoparticles, etc.) immobilized onto cellulose-based substrates for trace element detection, their advantages and shortcomings.
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Affiliation(s)
- Carlos Bendicho
- Centro de Investigación Mariña, Universidade de Vigo, Departamento de Química Analítica y Alimentaria, Grupo QA2, 36310 Vigo, Spain; (I.L.); (F.P.-P.); (I.d.l.C.); (V.R.)
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9
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Novel microfluidic paper-based analytical devices (μPADs) for the determination of nitrate and nitrite in human saliva. Talanta 2020; 219:121183. [DOI: 10.1016/j.talanta.2020.121183] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/14/2020] [Accepted: 05/16/2020] [Indexed: 12/15/2022]
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10
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Li YS, Zhao CL, Li BL, Gao XF. Evaluating nitrite content changes in some Chinese home cooking with a newely-developed CDs diazotization spectrophotometry. Food Chem 2020; 330:127151. [DOI: 10.1016/j.foodchem.2020.127151] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 05/04/2020] [Accepted: 05/24/2020] [Indexed: 12/28/2022]
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Zhou Z, Zalutsky MR, Vaidyanathan G. Labeling a TCO-functionalized single domain antibody fragment with 18F via inverse electron demand Diels Alder cycloaddition using a fluoronicotinyl moiety-bearing tetrazine derivative. Bioorg Med Chem 2020; 28:115634. [PMID: 32773089 DOI: 10.1016/j.bmc.2020.115634] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 06/27/2020] [Accepted: 06/28/2020] [Indexed: 02/07/2023]
Abstract
Single domain antibody fragments (sdAbs) exhibit a rapid tumor uptake and fast blood clearance amenable for labeling with 18F (t½ = 110 min) but suffer from high kidney accumulation. Previously, we developed a method for 18F-labeling of sdAbs via trans-cyclooctene (TCO)-tetrazine (Tz) inverse electron demand Diel's Alder cycloaddition reaction (IEDDAR) that incorporated a renal brush border enzyme (RBBE)-cleavable linker. Although >15 fold reduction in kidney activity levels was achieved, tumor uptake was compromised. Here we investigate whether replacing the [18F]AlF-NOTA moiety with [18F]fluoronicotinyl would rectify this problem. Anti-HER2 sdAb 5F7 was first derivatized with a TCO-containing agent that included the RBBE-cleavable linker GlyLys (GK) and a PEG chain, and then subjected to IEDDAR with 6-[18F]fluoronicotinyl-PEG4-methyltetrazine to provide [18F]FN-PEG4-Tz-TCO-GK-PEG4-5F7 ([18F]FN-GK-5F7). For comparisons, a control lacking GK linker and 5F7 labeled using residualizing N-succinimidyl 3-guanidinomethyl-5-[125I]iodobenzoate (iso-[125I]SGMIB) also were synthesized. Radiochemical purity, affinity (KD) and immunoreactive fraction of [18F]FN-GK-5F7 were 99%, 5.4 ± 0.7 nM and 72.5 ± 4.3%, respectively. Tumor uptake of [18F]FN-GK-5F7 in athymic mice bearing subcutaneous SKOV3 xenografts (3.7 ± 1.2% ID/g and 3.4 ± 1.0% ID/g at 1 h and 3 h, respectively) was 2- to 3-fold lower than for co-injected iso-[125I]SGMIB-5F7 (6.9 ± 1.9 %ID/g and 8.7 ± 3.0 %ID/g). However, due to its 6-fold lower kidney activity levels, tumor-to-kidney ratios for [18F]FN-GK-5F7 were 3-4 times higher than those for co-injected iso-[125I]SGMIB-5F7 as well as those observed for the 18F conjugate lacking the RBBE-cleavable linker. Micro-PET/CT imaging of [18F]FN-GK-5F7 in mice with SKOV-3 subcutaneous xenografts clearly delineated tumor as early as 1 h with minimal activity in the kidneys; however, there was considerable activity in gallbladder and intestines. Although the tumor uptake of [18F]FN-GK-5F7 was unexpectedly disappointing, incorporating an alternative RBBE-cleavable linker into this labeling strategy may ameliorate this problem.
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Affiliation(s)
- Zhengyuan Zhou
- Department of Radiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Michael R Zalutsky
- Department of Radiology, Duke University Medical Center, Durham, NC 27710, USA
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Hu C, Annese VF, Velugotla S, Al-Rawhani M, Cheah BC, Grant J, Barrett MP, Cumming DRS. Disposable Paper-on-CMOS Platform for Real-Time Simultaneous Detection of Metabolites. IEEE Trans Biomed Eng 2020; 67:2417-2426. [PMID: 32011243 DOI: 10.1109/tbme.2019.2962239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Early stage diagnosis of sepsis without overburdening health services is essential to improving patient outcomes. METHODS A fast and simple-to-use platform that combines an integrated circuit with paper microfluidics for simultaneous detection of multiple-metabolites appropriate for diagnostics was presented. Paper based sensors are a primary candidate for widespread deployment of diagnostic or test devices. However, the majority of devices today use a simple paper strip to detect a single marker using the reflectance of light. However, for many diseases such as sepsis, one biomarker is not sufficient to make a unique diagnosis. In this work multiple measurements are made on patterned paper simultaneously. Using laser ablation to fabricate microfluidic channels on paper provides a flexible and direct approach for mass manufacture of disposable paper strips. A reusable photodiode array on a complementary metal oxide semiconductor chip is used as the transducer. RESULTS The system measures changes in optical absorbance in the paper to achieve a cost-effective and easily implemented system that is capable of multiple simultaneous assays. Potential sepsis metabolite biomarkers glucose and lactate have been studied and quantified with the platform, achieving sensitivity within the physiological range in human serum. CONCLUSION We have detailed a disposable paper-based CMOS photodiode sensor platform for real-time simultaneous detection of metabolites for diseases such as sepsis. SIGNIFICANCE A combination of a low-cost paper strip with microfluidic channels and a sensitive CMOS photodiode sensor array makes our platform a robust portable and inexpensive biosensing device for multiple diagnostic tests in many different applications.
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Guan Y, Sun B. Detection and extraction of heavy metal ions using paper-based analytical devices fabricated via atom stamp printing. MICROSYSTEMS & NANOENGINEERING 2020; 6:14. [PMID: 34567629 PMCID: PMC8433178 DOI: 10.1038/s41378-019-0123-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/24/2019] [Accepted: 11/04/2019] [Indexed: 05/23/2023]
Abstract
As a promising concept, microfluidic paper-based analytical devices (μPADs) have seen rapid development in recent years. In this study, a new method of fabricating μPADs by atom stamp printing (ASP) is proposed and studied. The advantages of this new method compared to other methods include its low cost, ease of operation, high production efficiency, and high resolution (the minimum widths of the hydrophilic channels and hydrophobic barriers are 328 and 312 μm, respectively). As a proof of concept, μPADs fabricated with the ASP method were used to detect different concentrations of Cu2+ via a colorimetric method. Moreover, combined with a distance-based detection method, these devices achieved a Cu2+ detection limit of down to 1 mg/L. In addition, a new paper-based solid-liquid extraction device (PSED) based on a three-dimensional (3D) μPAD with a "3 + 2" structure and a recyclable extraction mode was developed. Specifically, using the characteristics of paper filtration and capillary force, the device completed multiple extraction and filtration steps from traditional solid-liquid extraction processes with high efficiency. The developed PSED platform allows the detection of heavy metal ions much more cheaply and simply and with a faster response time at the point of care, and it has great promise for applications in food safety and environmental pollution in resource-limited areas.
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Affiliation(s)
- Yanfang Guan
- School of Electromechanical Engineering, Henan University of technology, Zhengzhou, 450001 China
| | - Baichuan Sun
- School of Electromechanical Engineering, Henan University of technology, Zhengzhou, 450001 China
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15
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Monteiro T, Gomes S, Jubete E, Añorga L, Silveira CM, Almeida MG. A quasi-reagentless point-of-care test for nitrite and unaffected by oxygen and cyanide. Sci Rep 2019; 9:2622. [PMID: 30796298 PMCID: PMC6385495 DOI: 10.1038/s41598-019-39209-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 01/14/2019] [Indexed: 12/17/2022] Open
Abstract
The ubiquitous nitrite is a major analyte in the management of human health and environmental risks. The current analytical methods are complex techniques that do not fulfil the need for simple, robust and low-cost tools for on-site monitoring. Electrochemical reductase-based biosensors are presented as a powerful alternative, due to their good analytical performance and miniaturization potential. However, their real-world application is limited by the need of anoxic working conditions, and the standard oxygen removal strategies are incompatible with point-of-care measurements. Instead, a bienzymatic oxygen scavenger system comprising glucose oxidase and catalase can be used to promote anoxic conditions in aired environments. Herein, carbon screen-printed electrodes were modified with cytochrome c nitrite reductase together with glucose oxidase and catalase, so that nitrite cathodic detection could be performed by cyclic voltammetry under ambient air. The resulting biosensor displayed good linear response to the analyte (2–200 µM, sensitivity of 326 ± 5 mA M−1 cm−2 at −0.8 V; 0.8–150 µM, sensitivity of 511 ± 11 mA M−1 cm−2 at −0.5 V), while being free from oxygen interference and stable up to 1 month. Furthermore, the biosensor’s catalytic response was unaffected by the presence of cyanide, a well-known inhibitor of heme-enzymes.
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Affiliation(s)
- Tiago Monteiro
- UCIBIO, REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Monte de Caparica, Portugal
| | - Sara Gomes
- UCIBIO, REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Monte de Caparica, Portugal
| | - Elena Jubete
- CIDETEC, Sensors Unit, Parque Científico y Tecnológico de San Sebastián, P° Miramón 196, 2014 Donostia, San Sebastián, Spain
| | - Larraitz Añorga
- CIDETEC, Sensors Unit, Parque Científico y Tecnológico de San Sebastián, P° Miramón 196, 2014 Donostia, San Sebastián, Spain
| | - Célia M Silveira
- UCIBIO, REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Monte de Caparica, Portugal.,Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Av. da República, 2780-157, Oeiras, Portugal
| | - Maria Gabriela Almeida
- UCIBIO, REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Monte de Caparica, Portugal. .,Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Superior de Ciências da Saúde Egas Moniz, Campus Universitário, Quinta da Granja, 2829-511, Caparica, Portugal.
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Sun H, Jia Y, Dong H, Fan L. Graphene oxide nanosheets coupled with paper microfluidics for enhanced on-site airborne trace metal detection. MICROSYSTEMS & NANOENGINEERING 2019; 5:4. [PMID: 31057931 PMCID: PMC6369225 DOI: 10.1038/s41378-018-0044-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 11/04/2018] [Accepted: 12/03/2018] [Indexed: 05/29/2023]
Abstract
Rapid on-site analysis of airborne trace metals has been heavily favored over traditional methodologies because air pollutants can be altered by environmental, behavioral, and social patterns at any given time and location. However, existing portable approaches are either not capable of performing integrated on-site analysis or not yet practically applicable. Exploiting graphene oxide (GO) in enhancing the analytical performance of paper-based colorimetric detection, for the first time, this paper reports the development of a practically useful portable system for accurate, sensitive on-site characterization of trace metals in ambient particulate matter (PM). The system consists of GO-nanosheet-coated paper devices, unmanned aerial vehicle multiaxial sampling, and cellphone-based colorimetric detection. The increased specific surface area and the homogeneity of color distribution from the coating of GO improves the accuracy and sensitivity of the assays. Additionally, by leveraging a Wi-Fi camera, a self-developed app and a sample pretreatment cartridge, metal in PM samples can be readily processed and characterized on-site within 30 min. The effects of chip geometric design, pH, reaction volume, and metal interference on detection results have been studied. The detection limits of the system were calibrated to be 16.6, 5.1, and 9.9 ng for metals Fe, Cu, and Ni, respectively, which are comparable to the detection limits of commercial inductively coupled plasma (ICP) instruments, thus making our portable system practically useful. Finally, the system was used for airborne trace-metal study at 6 locations in Fuzhou City (China), and the results obtained using our system demonstrated good agreement with those obtained by the ICP. The significance of our system in supplementing air pollution study and furthering research on rapid, accurate, on-site air toxicity assessment was demonstrated.
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Affiliation(s)
- Hao Sun
- School of Mechanical Engineering and Automation, Fuzhou University, 350116 Fuzhou, China
- Fujian Provincial Collaborative Innovation Center of High-End Equipment Manufacturing, 350001 Fuzhou, China
| | - Yuan Jia
- School of Mechanical Engineering, Southeast University, 210096 Nanjing, China
| | - Hui Dong
- School of Mechanical Engineering and Automation, Fuzhou University, 350116 Fuzhou, China
| | - Longxiang Fan
- School of Mechanical Engineering and Automation, Fuzhou University, 350116 Fuzhou, China
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17
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Vidal E, Lorenzetti AS, Lista AG, Domini CE. Micropaper-based analytical device (μPAD) for the simultaneous determination of nitrite and fluoride using a smartphone. Microchem J 2018. [DOI: 10.1016/j.microc.2018.08.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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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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19
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Zhang XX, Song YZ, Fang F, Wu ZY. Sensitive paper-based analytical device for fast colorimetric detection of nitrite with smartphone. Anal Bioanal Chem 2018; 410:2665-2669. [PMID: 29556736 DOI: 10.1007/s00216-018-0965-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 02/05/2018] [Accepted: 02/14/2018] [Indexed: 01/08/2023]
Abstract
On-site rapid monitoring of nitrite as an assessment indicator of the environment, food, and physiological systems has drawn extensive attention. Here, electrokinetic stacking (ES) was combined with colorimetric reaction on a paper-based device (PAD) to achieve colorless nitrite detection with smartphone. In this paper, nitrite was stacked on the paper fluidic channel as a narrow band by electrokinetic stacking. Then, Griess reagent was introduced to visualize the stacking band. Under optimal conditions, the sensitivity of nitrite was 160-fold increased within 5 min. A linear response in the range of 0.075 to 1.0 μg mL-1 (R2 = 0.99) and a limit of detection (LOD) of 73 ng mL-1 (0.86 μM) were obtained. The LOD was 10 times lower than the reported PAD, and close to that achieved by a desktop spectrophotometer. The applicability was demonstrated by nitrite detection from saliva and water with good selectivity, adding 100 times more concentrated co-ions. High recovery (91.0~108.7%) and reasonable intra-day and inter-day reproducibility (RSD < 9%) were obtained. This work shows that the sensitivity of colorless analyte detection-based colorimetric reaction can be effectively enhanced by integration of ES on a PAD. Graphical abstract Schematic of the experimental setups (left) and the corresponding images (right) of the actual portable device.
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Affiliation(s)
- Xiu-Xiu Zhang
- Research Center for Analytical Sciences, Chemistry Department College of Sciences, Northeastern University, Shenyang, Liaoning, 110819, China
| | - Yi-Zhen Song
- Research Center for Analytical Sciences, Chemistry Department College of Sciences, Northeastern University, Shenyang, Liaoning, 110819, China
| | - Fang Fang
- Research Center for Analytical Sciences, Chemistry Department College of Sciences, Northeastern University, Shenyang, Liaoning, 110819, China
| | - Zhi-Yong Wu
- Research Center for Analytical Sciences, Chemistry Department College of Sciences, Northeastern University, Shenyang, Liaoning, 110819, China.
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20
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Almeida MIG, Jayawardane BM, Kolev SD, McKelvie ID. Developments of microfluidic paper-based analytical devices (μPADs) for water analysis: A review. Talanta 2018; 177:176-190. [DOI: 10.1016/j.talanta.2017.08.072] [Citation(s) in RCA: 160] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 08/21/2017] [Accepted: 08/23/2017] [Indexed: 11/27/2022]
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21
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Hatamie A, Nassiri M, Alivand MD, Bhatnagar A. Trace analysis of nitrite ions in environmental samples by using in-situ synthesized Zein biopolymeric nanoparticles as the novel green solid phase extractor. Talanta 2018; 176:156-164. [DOI: 10.1016/j.talanta.2017.08.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/06/2017] [Accepted: 08/06/2017] [Indexed: 10/19/2022]
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22
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Paper-based microfluidic analytical devices for colorimetric detection of toxic ions: A review. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.06.005] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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23
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Gabriel EFM, Garcia PT, Lopes FM, Coltro WKT. Paper-Based Colorimetric Biosensor for Tear Glucose Measurements. MICROMACHINES 2017. [PMCID: PMC6189872 DOI: 10.3390/mi8040104] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This paper describes a paper-based colorimetric biosensor for measuring glucose concentration levels in human tear samples. Colorimetric biosensors were wax printed on paper platforms and modified with chitosan previously prepared in acetic acid. The proposed device was explored to measure the glucose levels in human tear samples using 3,3′,5,5′-tetramethylbenzydine (TMB) as the chromogenic reagent. The paper-based colorimetric biosensor exhibited a linear behavior for the glucose concentration range between 0.1 and 1.0 mM. The achieved analytical sensitivity and limit of detection (LOD) were 84 AU/mM and 50 µM, respectively. Moreover, the device provided analytical reliability and no statistical difference when compared to the data recorded with a commercial glucometer. The proof-of-concept of our device was successfully demonstrated by measuring the glucose levels in six tear samples from nondiabetic subjects. In general, the results showed that the colorimetric biosensor has noticeable potential to be used as a powerful tool for tear glucose monitoring, since this fluid offers lower potential interferences, non-invasive sample collection and is pain-free. Furthermore, the proposed device could facilitate the treatment of diabetic patients who need constant control of glucose levels and cannot tolerate multiple finger sticks per day.
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Affiliation(s)
| | - Paulo Tarso Garcia
- Instituto de Química, Universidade Federal de Goiás, 74690-900 Goiânia, GO, Brazil; (E.F.M.G.); (P.T.G.)
| | - Flavio Marques Lopes
- Faculdade de Farmácia, Universidade Federal de Goiás, 74605-170 Goiânia, GO, Brazil;
| | - Wendell Karlos Tomazelli Coltro
- Instituto de Química, Universidade Federal de Goiás, 74690-900 Goiânia, GO, Brazil; (E.F.M.G.); (P.T.G.)
- Instituto Nacional de Ciência e Tecnologia em Bioanalítica (INCTBio), 13083-970 Campinas, SP, Brazil
- Correspondence: ; Tel.: +55-62-3521-1127
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