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Li Y, Zhang H, Qi Y, You C. Recent Studies and Applications of Hydrogel-Based Biosensors in Food Safety. Foods 2023; 12:4405. [PMID: 38137209 PMCID: PMC10742584 DOI: 10.3390/foods12244405] [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: 11/20/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
Food safety has increasingly become a human health issue that concerns all countries in the world. Some substances in food that can pose a significant threat to human health include, but are not limited to, pesticides, biotoxins, antibiotics, pathogenic bacteria, food quality indicators, heavy metals, and illegal additives. The traditional methods of food contaminant detection have practical limitations or analytical defects, restricting their on-site application. Hydrogels with the merits of a large surface area, highly porous structure, good shape-adaptability, excellent biocompatibility, and mechanical stability have been widely studied in the field of food safety sensing. The classification, response mechanism, and recent application of hydrogel-based biosensors in food safety are reviewed in this paper. Furthermore, the challenges and future trends of hydrogel biosensors are also discussed.
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Affiliation(s)
- Yuzhen Li
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, China; (Y.L.); (H.Z.); (Y.Q.)
- School of Physical Science and Technology, Shanghai Key Laboratory of High-Resolution Electron Microscopy, ShanghaiTech University, Shanghai 201210, China
| | - Hongfa Zhang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, China; (Y.L.); (H.Z.); (Y.Q.)
| | - Yan Qi
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, China; (Y.L.); (H.Z.); (Y.Q.)
| | - Chunping You
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, China; (Y.L.); (H.Z.); (Y.Q.)
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Servarayan K, Krishnamoorthy G, Sundaram E, Karuppusamy M, Murugan M, Piraman S, Vasantha VS. Optical Immunosensor for the Detection of Listeria monocytogenes in Food Matrixes. ACS OMEGA 2023; 8:15979-15989. [PMID: 37179640 PMCID: PMC10173425 DOI: 10.1021/acsomega.2c07848] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 04/10/2023] [Indexed: 05/15/2023]
Abstract
In this paper, simple imine-based organic fluorophore 4-amino-3-(anthracene-9 yl methyleneamino) phenyl (phenyl) methanone (APM) has been synthesized via a greener approach and the same was used to construct a fluorescent immunoassay for the detection of Listeria monocytogenes (LM). A monoclonal antibody of LM was tagged with APM via the conjugation of the amine group in APM and the acid group of anti-LM through EDC/NHS coupling. The designed immunoassay was optimized for the specific detection of LM in the presence of other interfering pathogens based on the aggregation-induced emission mechanism and the formation of aggregates and their morphology was confirmed with the help of scanning electron microscopy. Density functional theory studies were done to further support the sensing mechanism-based changes in the energy level distribution. All photophysical parameters were measured by using fluorescence spectroscopy techniques. Specific and competitive recognition of LM was done in the presence of other relevant pathogens. The immunoassay shows a linear appreciable range from 1.6 × 106-2.7024 × 108 cfu/mL using the standard plate count method. The LOD has been calculated from the linear equation and the value is found as 3.2 cfu/mL, and this is the lowest LOD value reported for the detection of LM so far. The practical applications of the immunoassay were demonstrated in various food samples, and their accuracy obtained was highly comparable with the standard existing ELISA method.
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Affiliation(s)
- Karthika
Lakshmi Servarayan
- Department
of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India
| | - Govindan Krishnamoorthy
- Translational
Research Platform for Veterinary Biologicals, Central University Laboratory, TANUVAS, Chennai 600051, Tamil Nadu, India
| | - Ellairaja Sundaram
- Department
of Chemistry, Vivekananda College, Tiruvedakam-West, Madurai 625234, India
| | - Masiyappan Karuppusamy
- Centre
for High Computing, CSIR-Central Leather
Research Institute, Adyar, Chennai 600020, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Marudhamuthu Murugan
- Department
of Microbial Technology, Madurai Kamaraj
University, Madurai 625021, India
| | - Shakkthivel Piraman
- Department
of Nanoscience and Technology, Alagappa
University, Karaikudi-630003, India
| | - Vairathevar Sivasamy Vasantha
- Department
of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India
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Kaur N, Kour R, Kaur S, Singh P. Perylene diimide-based sensors for multiple analyte sensing (Fe 2+/H 2S/ dopamine and Hg 2+/Fe 2+): cell imaging and INH, XOR, and encoder logic. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:2391-2398. [PMID: 37139593 DOI: 10.1039/d3ay00290j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
In this report, we present our results on the recognition of multiple analytes using trisubstituted PDI-based chemosensors DNP and DNB in 50% HEPES buffered-CH3CN solution. Upon the addition of Hg2+, DNB showed a decrease and increase in absorbance intensity at 560 and 590 nm, respectively, with a detection limit of 7.17 μM and bleaching of the violet color (de-butynoxy). Similarly, the addition of Fe2+ or H2S to the solution of DNP or DNB resulted in ratiometric changes (A688nm/A560nm) with respective detection limits of 185 nM and 27.6 nM for Fe2+, respectively, and a color change from violet to green. However, the addition of >37 μM H2S caused a decrease in absorbance at 688 nm with a concomitant blue shift to 634 nm. Upon the addition of dopamine, the DNP + Fe2+ assay showed ratiometric (A560nm/A688nm) changes within 10 s along with a color change from green to violet. Moreover, DNP has been successfully used for the exogenous detection of Fe2+ in A549 cells. Further, the multiple outputs observed with DNP in the presence of H2S have been used to construct NOR, XOR, INH and 4-to-2 encoder logic gates and circuits.
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Affiliation(s)
- Navdeep Kaur
- Department of Chemistry, UGC Centre for Advanced Studies-II, Guru Nanak Dev University, Amritsar 143001 (Pb.), India.
| | - Rasdeep Kour
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143001 (Pb.), India
| | - Satwinderjeet Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143001 (Pb.), India
| | - Prabhpreet Singh
- Department of Chemistry, UGC Centre for Advanced Studies-II, Guru Nanak Dev University, Amritsar 143001 (Pb.), India.
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Wu R, Guo J, Wang M, Liu H, Ding L, Yang R, Liu LE, Liu Z. Fluorescent Sensor Based on Magnetic Separation and Strand Displacement Amplification for the Sensitive Detection of Ochratoxin A. ACS OMEGA 2023; 8:15741-15750. [PMID: 37151502 PMCID: PMC10157876 DOI: 10.1021/acsomega.3c01408] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/11/2023] [Indexed: 05/09/2023]
Abstract
Ochratoxin A (OTA) is a common mycotoxin, and it is a significant threat to human health throughout the food chain. In this study, a sensitive and specific fluorescent sensor based on magnetic separation technology combined with chain displacement amplification was developed for fast and easy detection of OTA in food. The designed strand displacement amplification can improve the sensitivity for the detection, and the magnetic nanomaterials can provide a large surface area, thus enhancing the capture efficiency of the target from the sample. Based on those designs, the experimental results showed that the proposed method displayed excellent performance. The linearity range was 0.5-128.0 ng/mL. The detection limit was 0.125 ng/mL; the relative standard deviations were 3.92-7.71%. Additionally, the developed method was satisfactorily applied to determine OTA in wheat, corn, and red wine samples at three spiked levels (1.0, 8.0, and 64.0 ng/mL). The recoveries ranged from 85.45 to 107.8% for wheat flour, 101.34 to 108.35% for corn flour, and 91.15 to 93.80% for red wine, respectively. Compared with high-performance liquid chromatography, the proposed method showed a lower limit of detection and equal recovery. Hence, the designed method is a potential and good detecting tool for OTA residue analysis in complex matrix samples.
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Affiliation(s)
- Ruoyu Wu
- College
of Public Health, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Jiaping Guo
- College
of Public Health, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Minkai Wang
- Department
of Neurosurgery, First Affiliated Hospital
of Zhengzhou University, Zhengzhou, Henan 450052, People’s Republic of China
| | - Huimin Liu
- College
of Public Health, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Lihua Ding
- College
of Public Health, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Ruiying Yang
- College
of Public Health, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Li-e Liu
- College
of Public Health, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Zhiyong Liu
- Key
Laboratory of Food Safety Quick Testing and Smart Supervision Technology
for State Market Regulation, Beijing 100094, People’s
Republic of China
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Lu M, Pan C, Qin X, Wu M. Silicon Nanoparticle-Based Ratiometric Fluorescence Probes for Highly Sensitive and Visual Detection of VB 2. ACS OMEGA 2023; 8:14499-14508. [PMID: 37125092 PMCID: PMC10134237 DOI: 10.1021/acsomega.3c00025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 04/05/2023] [Indexed: 05/03/2023]
Abstract
In this work, blue fluorescent silicon nanoparticles (SiNPs) were prepared by a simple one-step hydrothermal method using (3-aminopropyl) triethoxy silane (APTES) and eriochrome black T as raw materials. The SiNPs showed favorable water solubility, thermal stability, pH stability, salt tolerance, and photobleaching resistance. At an excitation wavelength of 376 nm, the SiNPs emitted bright blue fluorescence at 460 nm. In the presence of vitamin B2 (VB2), the fluorescence intensity (FL intensity) of the SiNPs at 460 nm decreased obviously, and a new peak appeared at 521 nm. Based on this, a novel ratiometric fluorescence method was established for VB2 detection. There was a good linear relationship between the fluorescence intensity ratio (F 521/F 460) and VB2 concentration from 0.5 to 60 μM with a detection limit of 135 nM. This method was successfully applied to detect VB2 content in the samples of vitamin B2 drugs and beverages. Additionally, a simple paper sensor based on the SiNPs was designed to visualize detection of VB2. With the support of color recognition software on a smartphone, the visual quantitative analysis of VB2 was realized, ranging from 40 to 800 μM.
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Malik S, Niazi M, Khan M, Rauff B, Anwar S, Amin F, Hanif R. Cytotoxicity Study of Gold Nanoparticle Synthesis Using Aloe vera, Honey, and Gymnema sylvestre Leaf Extract. ACS OMEGA 2023; 8:6325-6336. [PMID: 36844542 PMCID: PMC9947984 DOI: 10.1021/acsomega.2c06491] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 01/05/2023] [Indexed: 06/18/2023]
Abstract
Gold nanoparticles (AuNPs) have gained importance in the field of biomedical research and diagnostics due to their unique physicochemical properties. This study aimed to synthesize AuNPs using Aloe vera extract, honey, and Gymnema sylvestre leaf extract. Physicochemical parameters for the optimal synthesis of AuNPs were determined using 0.5, 1, 2, and 3 mM of gold salt at varying temperatures from 20 to 50 °C. X-ray diffraction was used to evaluate the crystal structure of AuNPs, which came out to be a face-centered cubic structure. Scanning electron microscopy and energy-dispersive X-ray spectroscopy analysis confirmed the size and shape of AuNPs between 20 and 50 nm from the Aloe vera, honey, and Gymnema sylvestre, as well as large-sized nanocubes in the case of honey, with 21-34 wt % of gold content. Furthermore, Fourier transform infrared spectroscopy confirmed the presence of a broadband of amine (N-H) and alcohol groups (O-H) on the surface of the synthesized AuNPs that prevents them from agglomeration and provides stability. Broad and weak bands of aliphatic ether (C-O), alkane (C-H), and other functional groups were also found on these AuNPs. DPPH antioxidant activity assay showed a high free radical scavenging potential. The most suited source was selected for further conjugation with three anticancer drugs including 4-hydroxy Tamoxifen, HIF1 alpha inhibitor, and the soluble Guanylyl Cyclase Inhibitor 1 H-[1,2,4] oxadiazolo [4,3-alpha]quinoxalin-1-one (ODQ). Evidence of the pegylated drug conjugation with AuNPs was reinforced by ultraviolet/visible spectroscopy. These drug-conjugated nanoparticles were further checked on MCF7 and MDA-MB-231 cells for their cytotoxicity. These AuNP-conjugated drugs can be a good candidate for breast cancer treatment that will lead toward safe, economical, biocompatible, and targeted drug delivery systems.
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Affiliation(s)
- Shiza Malik
- Atta-ur-Rahman
School of Applied Biosciences (ASAB), National
University of Sciences and Technology (NUST), Islamabad44000, Pakistan
| | - Maha Niazi
- Atta-ur-Rahman
School of Applied Biosciences (ASAB), National
University of Sciences and Technology (NUST), Islamabad44000, Pakistan
| | - Maham Khan
- Atta-ur-Rahman
School of Applied Biosciences (ASAB), National
University of Sciences and Technology (NUST), Islamabad44000, Pakistan
| | - Bisma Rauff
- Department
of Biomedical Engineering, University of
Engineering and Technology (UET), Lahore53400, Pakistan
| | - Sidra Anwar
- Atta-ur-Rahman
School of Applied Biosciences (ASAB), National
University of Sciences and Technology (NUST), Islamabad44000, Pakistan
| | - Faheem Amin
- Department
of Physics, School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad46000, Pakistan
| | - Rumeza Hanif
- Atta-ur-Rahman
School of Applied Biosciences (ASAB), National
University of Sciences and Technology (NUST), Islamabad44000, Pakistan
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Li J, Liu B, Liu L, Zhang N, Liao Y, Zhao C, Cao M, Zhong Y, Chai D, Chen X, Zhang D, Wang H, He Y, Li Z. Fluorescence-based aptasensors for small molecular food contaminants: From energy transfer to optical polarization. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 285:121872. [PMID: 36152504 DOI: 10.1016/j.saa.2022.121872] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/17/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Small molecular food contaminants, such as mycotoxins, pesticide residues and antibiotics, are highly probable to be passively introduced in food at all stages of its processing, including planting, harvest, production, transportation and storage. Owing to the high risks caused by the unknowing intake and accumulation in human, there is an urgent need to develop rapid, sensitive and efficient methods to monitor them. Fluorescence-based aptasensors provide a promising platform for this area owing to its simple operation, high sensitivity, wide application range and economical practicability. In this paper, the common sorts of small molecular contaminants in foods, namely mycotoxins, pesticides, antibiotics, etc, are briefly introduced. Then, we make a comprehensive review, from fluorescence resonance energy transfer (in turn-on, turn-off, and ratiometric mode, as well as energy upconversion) to fluorescence polarization, of the fluorescence-based aptasensors for the determination of these food contaminants reported in the last five years. The principle of signal generation, the advances of each sort of fluorescent aptasensors, as well as their applications are introduced in detail. Additionally, we also discussed the challenges and perspectives of the fluorescent aptasensors for small molecular food contaminants. This work will offer systematic overview and inspiration for amateurs, researchers and developers of fluorescence-based aptasensors for the detection of small molecules.
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Affiliation(s)
- Jingrong Li
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Boshi Liu
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China.
| | - Li Liu
- Library of Tianjin Medical University, Tianjin 300070, China
| | - Nan Zhang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yumeng Liao
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Chunyu Zhao
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Manzhu Cao
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yuxuan Zhong
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Danni Chai
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xiaoyu Chen
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Di Zhang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China.
| | - Haixia Wang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
| | - Yongzhi He
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zheng Li
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China.
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Kiwi juice stabilized gold nanoclusters for fluorescence turn-on detection of copper ions. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Pan C, Qin X, Lu M, Ma Q. Water Soluble Silicon Nanoparticles as a Fluorescent Probe for Highly Sensitive Detection of Rutin. ACS OMEGA 2022; 7:28588-28596. [PMID: 35990497 PMCID: PMC9386801 DOI: 10.1021/acsomega.2c03463] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/26/2022] [Indexed: 05/17/2023]
Abstract
In this work, water-soluble fluorescent silicon nanoparticles (SiNPs) were prepared by one-pot hydrothermal method using 3-(2-aminoethylamino)propyldimethoxymethylsilane (AEAPDMMS) as a silicon source and amidol as a reducing agent. The prepared SiNPs showed bright green fluorescence, excellent stability against photobleaching, salt tolerance, temperature stability, and good water solubility. Due to the internal filtration effect (IFE), rutin could selectively quench the fluorescence of the SiNPs. Based on such phenomena, a highly sensitive fluorescence method was established for rutin detection. The linear range and limit of detection (LOD) were 0.05-400 μM and 15.2 nM, respectively. This method was successfully applied to detect rutin in the samples of rutin tablets, Sophora japonica, fry Sophora japonica, and S. japonica carbon with satisfactory recovery.
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Xie S, Qin C, Zhao F, Shang Z, Wang P, Sohail M, Zhang X, Li B. The DNA-Cu nanocluster and exonuclease I integrated label-free reporting system for CRISPR/Cas12a-based SARS-CoV-2 detection with minimized background signal. J Mater Chem B 2022; 10:6107-6117. [DOI: 10.1039/d2tb00857b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CRISPR-driven biosensing is developing rapidly, but current works mostly adopt dye-labeled ssDNA as the signal reporter, which is costly and unstable. Herein, we developed a label-free and low-background reporter for...
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He H, Sun DW, Wu Z, Pu H, Wei Q. On-off-on fluorescent nanosensing: Materials, detection strategies and recent food applications. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2021.11.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Background-free sensing platform for on-site detection of carbamate pesticide through upconversion nanoparticles-based hydrogel suit. Biosens Bioelectron 2021; 194:113598. [PMID: 34507097 DOI: 10.1016/j.bios.2021.113598] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/07/2021] [Accepted: 08/26/2021] [Indexed: 12/18/2022]
Abstract
On-site monitoring of carbamate pesticide in complex matrix remians as a challenge in terms of the real-time control of food safety and supervision of environmental quality. Herein, we fabricated robust upconversion nanoparticles (UCNPS)/polydopamine (PDA)-based hydrogel portable suit that precisely quantified carbaryl in complex tea samples with smartphone detector. UCNPS/PDA nanoprobe was developed by polymerization of dopamine monomers on the surface of NaErF4: 0.5% Tm3+@NaYF4 through electrostatic interaction, leading to efficient red luminescence quenching of UCNPS under near-infrared excitation, which circumvented autofluorescence and background interference in complicated environment. Such a luminescence quenching could be suppressed by thiocholine that was produced by acetylcholinesterase-mediated catalytic reaction, thus enabling carbaryl bioassay by inhibiting the activity of enzyme. Bestowed with the feasibility analysis of fluorescent output, portable platform was designed by integrating UCNPS-embedded sodium alginate hydrogel with 3D-printed smartphone device for quantitatively on-site monitoring of carbaryl in the range of 0.5-200 ng mL-1 in tea sample, accompanied by a detection limit of 0.5 ng mL-1. Owing to specific UCNPS signatures and hydrogel immobilization, this modular platform displayed sensitive response, portability and anti-interference capability in complex matrix analysis, thus holding great potential in point-of-care application.
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Li H, Ali S, Wei W, Xu Y, Lu H, Mehedi Hassan M, Wu X, Zuo M, Ouyang Q, Chen Q. Rapid detection of organophosphorus in tea using NaY/GdF4:Yb, Er-based fluorescence sensor. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105462] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Fluorescent sensing of mercury (II) and copper (II) ions based on DNA-templated Cu/Ag nanoclusters. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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