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Meliana C, Liu J, Show PL, Low SS. Biosensor in smart food traceability system for food safety and security. Bioengineered 2024; 15:2310908. [PMID: 38303521 PMCID: PMC10841032 DOI: 10.1080/21655979.2024.2310908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/23/2024] [Indexed: 02/03/2024] Open
Abstract
The burden of food contamination and food wastage has significantly contributed to the increased prevalence of foodborne disease and food insecurity all over the world. Due to this, there is an urgent need to develop a smarter food traceability system. Recent advancements in biosensors that are easy-to-use, rapid yet selective, sensitive, and cost-effective have shown great promise to meet the critical demand for onsite and immediate diagnosis and treatment of food safety and quality control (i.e. point-of-care technology). This review article focuses on the recent development of different biosensors for food safety and quality monitoring. In general, the application of biosensors in agriculture (i.e. pre-harvest stage) for early detection and routine control of plant infections or stress is discussed. Afterward, a more detailed advancement of biosensors in the past five years within the food supply chain (i.e. post-harvest stage) to detect different types of food contaminants and smart food packaging is highlighted. A section that discusses perspectives for the development of biosensors in the future is also mentioned.
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Affiliation(s)
- Catarina Meliana
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, Zhejiang Province, China
| | - Jingjing Liu
- College of Automation Engineering, Northeast Electric Power University, Jilin, Jilin Province, China
| | - Pau Loke Show
- Department of Chemical Engineering, Khalifa University, Abu Dhabi, Abu Dhabi Municipality, United Arab Emirates
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor Darul Ehsan, Malaysia
| | - Sze Shin Low
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, Zhejiang Province, China
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Sun Y, Yang X, Hu J, Ji F, Chi H, Liu Y, Hu K, Hao F, Wen X. Portable one-step effervescence tablet-based microextraction combined with smartphone digital image colorimetry: Toward field and rapid detection of trace nickel ion. Talanta 2024; 274:126036. [PMID: 38604041 DOI: 10.1016/j.talanta.2024.126036] [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: 12/25/2023] [Revised: 03/07/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
In this study, the one-step switchable hydrophilic solvent (SHS)-based effervescence tablet microextraction (ETME) was coupled with smartphone digital image colorimetry (SDIC) for the field detection of nickel ion (Ni2+) for the first time. Both extractant and CO2 were generated in situ when the novel SHS-based effervescence tablet was placed in the sample solution. The complexant 1-(2-pyridinylazo)-2-naphthaleno (PAN) dissolved from the effervescence tablet to form a stable complex with Ni2+, and the extractant was uniformly dispersed in the sample solution under the action of CO2 and fully in contact with Ni-PAN, which enabled efficient extraction of Ni2+. The color changes of the extraction phase were captured by smartphone, then a quantitative relationship between the concentrations of Ni2+ and color intensity of images captured using a smartphone was established by customized applet WASDIC, which realized quantitative analysis of Ni2+ in different samples. Under optimal conditions, the enhancement factor (EF) of the proposed method was 65.1, the limit of detection (LOD) and limit of quantification (LOQ) were 1.69 and 5.64 μg L-1, respectively. The developed method was successfully applied to the detection of trace Ni2+ in the environmental samples and natural medicines. And the applicability of the method for use in field analysis was validated.
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Affiliation(s)
- Yiping Sun
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Xiaofang Yang
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Jiayi Hu
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Fuchun Ji
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Huajian Chi
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Ya Liu
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Kan Hu
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Fangfang Hao
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China.
| | - Xiaodong Wen
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China.
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Chunta S, Jarujamrus P, Prakobkij A, Khongwichit S, Ditcharoen N, Pencharee S, Amatatongchai M. Point-of-care blood tests using a smartphone-based colorimetric analyzer for health check-up. Mikrochim Acta 2024; 191:402. [PMID: 38886225 DOI: 10.1007/s00604-024-06463-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 05/24/2024] [Indexed: 06/20/2024]
Abstract
A microscale colorimetric assay was designed and implemented for the simultaneous determination of clinical chemistry tests measuring six parameters, including glucose (GLU), total protein (TP), human serum albumin (HSA), uric acid (UA), total cholesterol (TC), and triglycerides (TGs) in plasma samples. The test kit was fabricated using chromogenic reagents, comprising specific enzymes and binding dyes. Multiple colors that appeared on the reaction well when it was exposed to each analyte were captured by a smartphone and processed by the homemade Check6 application, which was designed as a colorimetric analyzer and simultaneously generated a report that assessed test results against gender-dependent reference ranges. Six blood checkup parameters for four plasma samples were conducted within 12 min on one capture picture. The assay achieved wide working concentration ranges of 10.45-600 mg dL-1 GLU, 1.39-10.0 g dL-1 TP, 1.85-8.0 g dL-1 HSA, 0.86-40.0 mg dL-1 UA, 11.28-600 mg dL-1 TC, and 11.93-400 mg dL-1 TGs. The smartphone-based assay was accurate with recoveries of 93-108% GLU, 93-107% TP, 92-107% HSA, 93-107% UA, 92-107% TC, and 99-113% TGs. The coefficient of variation for intra-assay and inter-assay precision ranged from 3.2-5.2% GLU, 4.6-5.3% TP, 4.3-5.3% HSA, 2.8-6.6% UA, 2.7-6.5% TC, and 1.1-3.9% TGs. This assay demonstrated remarkable accuracy in quantifying the concentration-dependent color intensity of the plasma, even in the presence of other suspected interferences commonly present in serum. The results of the proposed method correlated well with results determined by the microplate spectrophotometer (R2 > 0.95). Measurement of these six clinical chemistry parameters in plasma using a microscale colorimetric test kit coupled with the Check6 smartphone application showed potential for real-time point-of-care analysis, providing cost-effective and rapid assays for health checkup testing.
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Affiliation(s)
- Suticha Chunta
- Department of Clinical Chemistry, Faculty of Medical Technology, Prince of Songkla University, Songkhla, 90110, Thailand.
| | - Purim Jarujamrus
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190, Thailand
- Nanomaterials Science, Sensors and Catalysis for Problem‑Based Projects, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190, Thailand
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3‑14‑1 Hiyoshi, Kohoku‑ku, Yokohama, 223‑8522, Japan
| | - Akarapong Prakobkij
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190, Thailand
- Nanomaterials Science, Sensors and Catalysis for Problem‑Based Projects, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190, Thailand
| | - Soemwit Khongwichit
- Department of Clinical Chemistry, Faculty of Medical Technology, Prince of Songkla University, Songkhla, 90110, Thailand
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla, 90110, Thailand
| | - Nadh Ditcharoen
- Department of Mathematics, Statistics, and Computer, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190, Thailand
| | - Somkid Pencharee
- Department of Physics, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190, Thailand
| | - Maliwan Amatatongchai
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190, Thailand
- Nanomaterials Science, Sensors and Catalysis for Problem‑Based Projects, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190, Thailand
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Zeng X, Wang L, Liu C, Zhang J, Shi HW, Shen W, Kong D, Huang C, Lee HK, Tang S. An integrated liposome-based microfluidic strategy for rapid colorimetric analysis: A case study of microRNA-21 detection. Talanta 2024; 272:125838. [PMID: 38430866 DOI: 10.1016/j.talanta.2024.125838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/21/2024] [Accepted: 02/25/2024] [Indexed: 03/05/2024]
Abstract
In this study, a novel integrated liposome-based microfluidic platform combined with a smartphone was designed for the rapid colorimetric detection of microRNA-21 (miRNA-21) in real samples. The flowing surface-functionalized liposomes were first captured by nucleic acid-functionalized Au nanoparticles in the microfluidic chip. In the presence of miRNA-21, the DNA strand modified on the surface of Au nanoparticles hybridized with the target to form double-stranded products and was cleaved by duplex-specific nuclease (DSN) enzyme, causing the liposomes to be re-released. Then, as the liposomes in the colorimetric module were lysed and the "cellular" contents were released, a step-by-step "glucose-glucose oxidase-3,3',5,5'-tetramethylbenzidine (TMB)" colorimetric reaction process catalyzed by the G-quadruplex/hemin was triggered. The grayscale values were recorded and recognized by the smartphone camera for miRNA-21 analysis. The advantages of the present strategy included the portability of smartphone-based colorimetric assay, the encapsulation and transport of reactants by liposomes and the low solvent usage of microfluidic chip. Under optimal conditions, this assay exhibited a wide linear range from 1 pM to 1 nM (r2 = 0.9981), and the limit of detection of miRNA-21 was as low as 0.27 pM. Moreover, the high specificity of this strategy allowed its successful application to the rapid analysis of miRNA-21 in real blood serum samples of people with type 2 diabetes.
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Affiliation(s)
- Xuemin Zeng
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China
| | - Lina Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China
| | - Chang Liu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China.
| | - Jinghui Zhang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China
| | - Hai-Wei Shi
- National Medical Products Administration Key Laboratory for Impurity Profile of Chemical Drugs, Nanjing, 210019, PR China; Chemical Drug Inspection Laboratory 2, Jiangsu Institute for Food and Drug Control, Nanjing, 210019, PR China
| | - Wei Shen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China.
| | - Dezhao Kong
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China
| | - Cheng Huang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China
| | - Hian Kee Lee
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China; Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore.
| | - Sheng Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China; College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, PR China.
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Zhang D, Luo T, Cai X, Zhao NN, Zhang CY. Recent advances in nucleic acid signal amplification-based aptasensors for sensing mycotoxins. Chem Commun (Camb) 2024; 60:4745-4764. [PMID: 38647208 DOI: 10.1039/d4cc00982g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Mycotoxin contamination in food products may cause serious health hazards and economic losses. The effective control and accurate detection of mycotoxins have become a global concern. Even though a variety of methods have been developed for mycotoxin detection, most conventional methods suffer from complicated operation procedures, low sensitivity, high cost, and long assay time. Therefore, the development of simple and sensitive methods for mycotoxin assay is highly needed. The introduction of nucleic acid signal amplification technology (NASAT) into aptasensors significantly improves the sensitivity and facilitates the detection of mycotoxins. Herein, we give a comprehensive review of the recent advances in NASAT-based aptasensors for assaying mycotoxins and summarize the principles, features, and applications of NASAT-based aptasensors. Moreover, we highlight the challenges and prospects in the field, including the simultaneous detection of multiple mycotoxins and the development of portable devices for field detection.
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Affiliation(s)
- Dandan Zhang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, China
| | - Ting Luo
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, China
| | - Xiangyue Cai
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, China
| | - Ning-Ning Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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Khoshbin Z, Moeenfard M, Abnous K, Taghdisi SM. A label-free aptasensor for colorimetric detection of food toxin: Mediation of catalytically active gold nanozymes and smartphone imaging strategy. Food Chem 2024; 433:137355. [PMID: 37683478 DOI: 10.1016/j.foodchem.2023.137355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023]
Abstract
A portable colorimetric aptasensor was developed on the surface of a plastic sheet for on-site detection of acrylamide. The mechanism of aptasensor is based on the disruption of the aptamer complex with its complementary strand on the sensing zone, and subsequently, the catalytic activity of gold nanoparticles (AuNPs) for the reduction process of 4-nitrophenol (4-NP) in the presence of sodium borohydride (NaBH4). A yellow-to-colorless change of the sample solution revealed the target presence, easily discernible by the naked eye. The acrylamide quantification was accomplished using the smartphone imaging readout technique. The aptasensor detected the acrylamide concentration in the range of 0.01-500 nmol L-1 with a detection limit of 0.0024 nmol L-1. Coffee, potato chips, bread, and lake water samples were successfully analyzed by the aptasensor for their acrylamide content. The introduced aptasensor can pave a facile, cost-effective, portable, and user-friendly sensing tool for food safety control and environmental monitoring.
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Affiliation(s)
- Zahra Khoshbin
- Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad, Azadi Square, PO Box: 9177948944, Mashhad, Iran
| | - Marzieh Moeenfard
- Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad, Azadi Square, PO Box: 9177948944, Mashhad, Iran.
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Mirhosseini S, Nasiri AF, Khatami F, Mirzaei A, Aghamir SMK, Kolahdouz M. A digital image colorimetry system based on smart devices for immediate and simultaneous determination of enzyme-linked immunosorbent assays. Sci Rep 2024; 14:2587. [PMID: 38297148 PMCID: PMC10830485 DOI: 10.1038/s41598-024-52931-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/25/2024] [Indexed: 02/02/2024] Open
Abstract
Standard enzyme-linked immunosorbent assays based on microplates are frequently utilized for various molecular sensing, disease screening, and nanomedicine applications. Comparing this multi-well plate batched analysis to non-batched or non-standard testing, the diagnosis expenses per patient are drastically reduced. However, the requirement for rather big and pricey readout instruments prevents their application in environments with limited resources, especially in the field. In this work, a handheld cellphone-based colorimetric microplate reader for quick, credible, and novel analysis of digital images of human cancer cell lines at a reasonable price was developed. Using our in-house-developed app, images of the plates are captured and sent to our servers, where they are processed using a machine learning algorithm to produce diagnostic results. Using FDA-approved human epididymis protein of ovary IgG (HE4), prostate cancer cell line (PC3), and bladder cancer cell line (5637) ELISA tests, we successfully examined this mobile platform. The accuracies for the HE4, PC3, and 5637 tests were 93%, 97.5%, and 97.2%, respectively. By contrasting the findings with the measurements made using optical absorption EPOCH microplate readers and optical absorption Tecan microplate readers, this approach was found to be accurate and effective. As a result, digital image colorimetry on smart devices offered a practical, user-friendly, affordable, precise, and effective method for quickly identifying human cancer cell lines. Thus, healthcare providers might use this portable device to carry out high-throughput illness screening, epidemiological investigations or monitor vaccination campaigns.
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Affiliation(s)
- Shaghayegh Mirhosseini
- School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Aryanaz Faghih Nasiri
- School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Fatemeh Khatami
- Urology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Akram Mirzaei
- Urology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mohammadreza Kolahdouz
- School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran.
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Gao P, Md Shaarani S, Mohd Noor NQI. Recent advances in inspection technologies of food safety health hazards for fish and fish products. Crit Rev Food Sci Nutr 2023:1-17. [PMID: 38059602 DOI: 10.1080/10408398.2023.2289077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
The development of reliable and sensitive detection methods is essential for addressing the escalating concerns surrounding fish and fish products, driven by increasing market demands. This comprehensive review presents recent advances in detection approaches, specifically focusing on microplastic, biological, and chemical hazards associated with these products. The overview encompasses 21 distinct detection methods, categorized based on the type of hazard they target. For microplastic hazards, six methods are visual, spectroscopic, and thermal analyses. Biological hazard identification relies on six approaches employing nucleic-acid sequence, immunological, and biosensor technologies. The investigation of chemical hazards encompasses ten methods, including chromatography, spectroscopy, mass spectrometry, immunological, biosensor, and electrochemical techniques. The review provides in-depth insights into the basic principles, general characteristics, and the recognized advantages and disadvantages of each method. Moreover, it elaborates on recent advancements within these methodologies. The concluding section of the review discusses current challenges and outlines future perspectives for these detection methods. Overall, this comprehensive summary not only serves as a guide for researchers involved in fish safety and quality control but also emphasizes the significance of staying abreast of evolving detection technologies to ensure the continued safety of fish and fish products in response to emerging food safety hazards.
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Affiliation(s)
- Peiru Gao
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
| | - Sharifudin Md Shaarani
- Food Biotechnology Programme, Faculty of Science and Technology, Universiti Sains Islam Malaysia, Nilai, Malaysia
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Manfredini A, Malusà E, Canfora L. Aptamer-based technology for detecting Bacillus subtilis in soil. Appl Microbiol Biotechnol 2023; 107:6963-6972. [PMID: 37698608 DOI: 10.1007/s00253-023-12765-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/12/2023] [Accepted: 08/28/2023] [Indexed: 09/13/2023]
Abstract
The uncertainty associated with the impact of a bioinoculant on soil microbial community and, as a consequence, on soil quality, as well as the need to define its persistence, has prompted the demand for an accurate detection and tracking of the presence and the quantification of a target microbial inoculant in soil. Although DNA or RNA-based molecular detection are well established and commonly applied in this regard, alternative ligands such as DNA-aptamers have several advantages over them, such as low cost, ease of modification, ease of immobilisation on lab-on-chip or nanosensors, high stability and not thermolability. In this study, we used a toggle-cell SELEX method to isolate, select and characterise ssDNA (single-strand DNA) aptamers to detect a Bacillus subtilis strain which is being tested as a plant growth promoting rhizobacteria (PGPR) formulation. Two ssDNA aptamers (patenting application n.102022000022590) showed strong affinity and specificity for B. subtilis strains, with values of the kinetic parameters Kd (dissociation constant) in the nanomolar range and Bmax (maximum intensity of binding) around 1. Validation of the suitability of the aptamers was validated on three inoculated soils characterised by different chemical-physical features and in soil from a field trial with the formulated B. subtilis PCM/B 00105 strain. These are considered significant features to monitor B. subtilis strains in soil, practical to optimise bioinoculant application methods, support regulatory processes and foster the shift of agricultural production toward more sustainable cropping systems. KEY POINTS: • First DNA aptamers binding a B. subtilis strain included in a bioinoculum formulation. • First DNA aptamer binding B. subtilis in soil. • Aptamer may be a method for microbial inoculant detection in soil.
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Affiliation(s)
| | - Eligio Malusà
- CREA Centro di Ricerca Viticoltura ed Enologia, 31015, Conegliano, Italy
- National Institute of Horticultural Research, 96-100, Skierniewice, Poland
| | - Loredana Canfora
- CREA Centro di Ricerca Agricoltura e Ambiente, 00184, Rome, Italy
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Lu W, Tian Y, Teng W, Qiu X, Li M. Plasmonic colorimetric immunosensor based on Poly-HRP and AuNS etching for tri-modal readout of small molecule. Talanta 2023; 265:124883. [PMID: 37393715 DOI: 10.1016/j.talanta.2023.124883] [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: 04/06/2023] [Revised: 06/14/2023] [Accepted: 06/25/2023] [Indexed: 07/04/2023]
Abstract
It was urgent to improve the intuitive, portable, sensitive and multi-modal detection method for small molecules. In this study, a tri-modal readout of plasmonic colorimetric immunosensor (PCIS) for small molecule (zearalenone, ZEN, as an example) had been established based on the Poly-HRP amplification and gold nanostars (AuNS) etching. The immobilized Poly-HRP from the competitive immunoassay was used to catalyze iodide (I-) into iodine (I2), which could prevent the AuNS etching by I-. With the increasing of ZEN, the AuNS etching was enhanced, and the localized surface plasmon resonance (LSPR) peak of AuNS showed stronger blue shift, which resulted in the color changing from deep blue (no-etching) to blue violet (half-etching) and finally to shiny red (all-etching). The results of PCIS could be selectively obtained by the tri-modal readout: (1) naked eye (LOD of 0.10 ng/mL), (2) smartphone (LOD of 0.07 ng/mL) and (3) UV-spectrum (LOD of 0.04 ng/mL). The proposed PCIS had performed well in the sensitivity, specificity, accuracy and reliability. In addition, the harmless reagents were used in the overall process to further guarantee the environmental friendliness. Therefore, the PCIS might provide a novel and green avenue for the tri-modal readout of ZEN via the intuitive naked eye, portable smartphone and accurate UV-spectrum, which hold great potential for small molecule monitoring.
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Affiliation(s)
- Wenying Lu
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Ye Tian
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Weipeng Teng
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Xuchun Qiu
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Ming Li
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, PR China.
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Ciaccheri L, Adinolfi B, Mencaglia AA, Mignani AG. Smartphone-Enabled Colorimetry. SENSORS (BASEL, SWITZERLAND) 2023; 23:5559. [PMID: 37420724 DOI: 10.3390/s23125559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/01/2023] [Accepted: 06/03/2023] [Indexed: 07/09/2023]
Abstract
A smartphone is used as a colorimeter. The performance characterization for colorimetry is presented using both the built-in camera and a clip-on dispersive grating. Certified colorimetric samples provided by Labsphere® are considered as test samples. Color measurements directly performed utilizing the smartphone camera only are obtained using the RGB Detector app, downloaded from the Google Play Store. More precise measurements are achieved using the commercially available GoSpectro grating and related app. In both cases, to quantify the reliability and sensitivity of smartphone-based color measurements, the CIELab color difference ΔE between the certified and smartphone-measured colors is calculated and is reported in this paper. In addition, as an example of a practical application of interest for the textile industry, several samples of cloth fabrics with a palette of the most common colors are measured, and the comparison with the certified color values is presented.
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Affiliation(s)
- Leonardo Ciaccheri
- CNR-Istituto di Fisica Applicata "Nello Carrara", 50019 Sesto Fiorentino, FI, Italy
| | - Barbara Adinolfi
- CNR-Istituto di Fisica Applicata "Nello Carrara", 50019 Sesto Fiorentino, FI, Italy
| | | | - Anna Grazia Mignani
- CNR-Istituto di Fisica Applicata "Nello Carrara", 50019 Sesto Fiorentino, FI, Italy
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Gorbunova MV, Safronova AS, Vasilyeva AA, Spitsyna KS, Apyari VV, Dmitrienko SG. Sulfonamide drugs: Low-cost spectrofluorometric determination using a computer monitor calibrator for detection. Talanta 2023; 257:124383. [PMID: 36863298 DOI: 10.1016/j.talanta.2023.124383] [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: 12/22/2022] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 02/27/2023]
Abstract
A possibility of the use of a common monitor calibrator as a portable and inexpensive tool for the fluorometric determination of sulfonamide drugs after their reaction with fluorescamine was examined. The luminescence measurements with a calibrator are based on irradiation of a test sample by the device lamp with a broadband spectrum in the visible and near UV regions and simultaneous registration of the secondary radiation by the device detector. Two types of cuvettes with black light absorbing sides eliminating the reflected self-radiation were tested. The commercially available Eppendorf-type black plastic microtubes ("LightSafe") were suggested as a good option for such measurements. It was shown that a monitor calibrator can be applied for optimization of the determination conditions. By the example of sulfanilamide and sulfamethazine, it was shown that the procedure should be carried out at pH 4-6 and fluorescamine concentration of 200 μmol L-1, and 40 min of the interaction. The limit of detection of sulfanilamide and sulfamethazine using a monitor calibrator is 0.9 μmol L-1 and 0.8 μmol L-1, respectively, which is comparable with their spectrophotometric determination.
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Affiliation(s)
- Maria V Gorbunova
- Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1/3, Moscow, 119991, Russia.
| | - Anastasia S Safronova
- Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1/3, Moscow, 119991, Russia
| | - Alexandra A Vasilyeva
- Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1/3, Moscow, 119991, Russia
| | - Ksenia S Spitsyna
- Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1/3, Moscow, 119991, Russia
| | - Vladimir V Apyari
- Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1/3, Moscow, 119991, Russia
| | - Stanislava G Dmitrienko
- Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1/3, Moscow, 119991, Russia
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Saleh Hussein A, Lafzi F, Bayindir S, Toprak M. The selective turn-on recognition of fluoride ions using 5-aryl-rhodanines: colorimetric & fluorescent detection. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Yu Z, Gong H, Li M, Tang D. Hollow prussian blue nanozyme-richened liposome for artificial neural network-assisted multimodal colorimetric-photothermal immunoassay on smartphone. Biosens Bioelectron 2022; 218:114751. [DOI: 10.1016/j.bios.2022.114751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 11/30/2022]
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