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Guliya H, Yadav M, Nohwal B, Lata S, Chaudhary R. Emphasizing laccase based amperometric biosensing as an eventual panpharmacon for rapid and effective detection of phenolic compounds. Biochim Biophys Acta Gen Subj 2024:130691. [PMID: 39117046 DOI: 10.1016/j.bbagen.2024.130691] [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: 03/27/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
Phenols and phenolic compounds are major plant metabolites used in industries to produce pesticides, dyes, medicines, and plastics. These compounds enter water bodies, soil, and living organisms via such industrial routes. Some polyphenolic compounds like phenolic acids, flavonoids have antioxidant and organoleptic qualities, as well as preventive effects against neurodegenerative illnesses, cardiovascular disease, diabetes, and cancer. However, many of the polyphenolic compounds, such as Bisphenol A, phthalates, and dioxins also cause major environmental pollution and endocrine disruption, once the dose level becomes objectionable. The development of reliable and rapid methods for studying their dose dependency, high-impact detrimental effects, and continuous monitoring of phenol levels in humans and environmental samples is a crucial necessity of the day. Enzymatic biosensors employing phenol oxidases like tyrosinase, peroxidase and laccase, utilizing electrochemical amperometric methods are innovative methods for phenol quantification. Enzymatic biosensing, being highly sensitive and efficacious technique, is illuminated in this review article as a progressive approach for phenol quantification with special emphasis on laccase amperometric biosensors. Even more, the review article discussion is extended up to nanozymes, composites of metal organic frameworks (MOFs), and molecularly imprinted polymers (MIPs) as some emerging species for electro-chemical sensing of phenols. Applications of phenol quantification and green biosensing are also specified. A concrete summary of the innovative polyphenol detection approaches with futuristic scope indicates a triumph over some existing constraints of the phenomenological approaches providing an informative aisle to the modern researchers towards the bulk readability.
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Affiliation(s)
- Himani Guliya
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murth, al-131039, Haryana, India
| | - Meena Yadav
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murth, al-131039, Haryana, India
| | - Bhawna Nohwal
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murth, al-131039, Haryana, India
| | - Suman Lata
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murth, al-131039, Haryana, India.
| | - Reeti Chaudhary
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murth, al-131039, Haryana, India.
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Yang X, Bi Z, Yin C, Huang H, Li Y. A novel hybrid sensor array based on the polyphenol oxidase and its nanozymes combined with the machine learning based dual output model to identify tea polyphenols and Chinese teas. Talanta 2024; 272:125842. [PMID: 38428131 DOI: 10.1016/j.talanta.2024.125842] [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: 12/05/2023] [Revised: 02/05/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
A novel sensor array was developed based on the enzyme/nanozyme hybridization for the identification of tea polyphenols (TPs) and Chinese teas. The enzyme/nanozyme with polyphenol oxidase activity can catalyze the reaction between TPs and 4-aminoantipyrine (4-AAP) to produce differences in color, and the sensor array was thus constructed to accurately identify TPs mixed in different species, concentrations, or ratios. In addition, a machine learning based dual output model was further used to effectively predict the classes and concentrations of unknown samples. Therefore, the qualitative and quantitative detection of TPs can be realized continuously and quickly. Furthermore, the sensor array combining the machine learning based dual output model was also utilized for the identification of Chinese teas. The method can distinguish the six teas series in China, and then precisely differentiate the more specific tea varieties. This study provides an efficient and facile strategy for the identification of teas and tea products.
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Affiliation(s)
- Xiaoyu Yang
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Zhichun Bi
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Chenghui Yin
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Hui Huang
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China.
| | - Yongxin Li
- Key Lab of Groundwater Resources and Environment of Ministry of Education, Key Lab of Water Resources and Aquatic Environment of Jilin Province, College of New Energy and Environment, Jilin University, Changchun 130021, PR China
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Tian T, Song D, Zhang L, Huang H, Li Y. Facile and selective recognition of sulfonylurea pesticides based on the multienzyme-like activities enhancement of nanozymes combining sensor array. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133847. [PMID: 38422731 DOI: 10.1016/j.jhazmat.2024.133847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/02/2024]
Abstract
Traditional identification methods based on cholinesterase inhibition are limited to recognizing organic phosphorus and carbamate esters, and their response to sulfonylurea pesticides is weak. Residual sulfonylurea pesticides can pose a threat to human health. So, it is very important to develop an effective, rapid and portable method for sulfonylurea pesticides detection. Herein, we first found that sulfonylurea pesticides have activity-enhancing effects on copper-based nanozymes, and then combined them with the array technology to construct a six-channel sensing array method for selectively identifying sulfonylurea pesticides and detecting total concentration of sulfonylurea pesticides (the limit of detection was 0.03 µg/mL). This method has good selectivity towards sulfonylurea pesticides. In addition, a smartphone-based colorimetric paper sensor analysis method was developed to achieve the on-site detection of the total concentration of sulfonylurea pesticides. And this array can also be used for individual differentiation (1-100 µg/mL). Our work not only investigates the specific responses of copper-based nanozymes to sulfonylurea pesticides, but also develops a simple method that contributes to directly detect sulfonylurea pesticides at the source of pollution, providing insights for further research on sulfonylurea pesticides detection and filling the gap in pesticide residue studies.
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Affiliation(s)
- Tian Tian
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Donghui Song
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Ling Zhang
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Hui Huang
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Yongxin Li
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, College of New Energy and Environment, Jilin University, Changchun 130021, PR China; Jilin Provincial Key Laboratory of Water Resources and Water Environment, College of New Energy and Environment, Jilin University, Changchun 130021, PR China.
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Wang L, Li J, Lei L, Li Y, Huang H. Modulation of the enzyme-like activity of CuAsp nanozyme by gallic acid and the selective detection of bisphenol A in infant food packaging. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:751-758. [PMID: 38226610 DOI: 10.1039/d3ay01930f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
The activity modulation of nanozymes with multi-enzymatic activities has both opportunities and challenges in practical applications. In this study, we found firstly that gallic acid erosion had a significant inhibitory effect on the peroxidase-catalyzed colorimetric reaction process of copper aspartate nanozyme prepared based on aspartic acid and copper (CuAsp), and the laccase-like catalytic activity remained almost unchanged. A sensing strategy for bisphenol A was then developed based on the laccase-like activity of GA-CuAsp synthesized by gallic acid (GA) acid erosion of CuAsp, which may have less interference due to the peroxidase-like activity. The developed sensing strategy had good selectivity and interference resistant ability, with a detection limit of 0.75 μmol L-1. In addition, the method was successfully applied to detecting BPA in plastic bottled drinking water samples and infant food packaging.
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Affiliation(s)
- Luwei Wang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Jie Li
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Lulu Lei
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Yongxin Li
- Key Lab of Groundwater Resources and Environment of Ministry of Education, Key Lab of Water Resources and Aquatic Environment of Jilin Province, College of New Energy and Environment, Jilin University, Changchun 130021, China.
| | - Hui Huang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
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Yang X, Bi Z, Yin C, Zhang S, Song D, Huang H, Li Y. A colorimetric sensor array based on peroxidase activity nanozyme for the highly efficient differential sensing of tea polyphenols and Tieguanyin adulteration. Food Chem 2024; 432:137265. [PMID: 37657343 DOI: 10.1016/j.foodchem.2023.137265] [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: 07/27/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/03/2023]
Abstract
Tieguanyin (TGY) is one of top ten famous teas in China, but in the process of brand building there is the phenomenon of falsehood, thus harming the interests of consumers. To solve theadulterate problem of TGY, a colorimetric sensor array (CSA) based onperoxidase activity of nanozyme was constructed. Nanozymes can catalyze 3,3',5,5'-tetramethylbenzidine (TMB) to 3,3',5,5'-tetramethyl -[1,1'-bis(cyclohexyl)]-2,2',5,5'-tetraene-4,4'-diimine (oxTMB), while the tea polyphenols (TPs) can inhibit this process, and the degree of inhibition varies significantly with the reaction time. We selected two nanozymesand three reaction time points to construct CSA. It can successfully distinguish TPsin TGY. The discriminative analysiscan achieve: (1)distinction between TGY and adulterated tea, (2)discrimination of TGY in various seasons and seasonal adulteration in different degrees. The method constructed in this work is promising for both the class and quality differentiation of TGY and other teas with TPs as the main activity.
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Affiliation(s)
- Xiaoyu Yang
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Zhichun Bi
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Chenghui Yin
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Shuyi Zhang
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Donghui Song
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China
| | - Hui Huang
- College of Food Science and Engineering, Jilin University, Changchun 130025, PR China.
| | - Yongxin Li
- Key Lab of Groundwater Resources and Environment of Ministry of Education, Key Lab of Water Resources and Aquatic Environment of Jilin Province, College of New Energy and Environment, Jilin University, Changchun 130021, PR China.
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Guo Z, Zhou L, Chen X, Song Q. Carbon-coated copper nanocrystals with enhanced peroxidase-like activity for sensitive colorimetric determination of 2,4-dinitrophenylhydrazine. Mikrochim Acta 2023; 191:37. [PMID: 38110783 DOI: 10.1007/s00604-023-06127-w] [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: 08/16/2023] [Accepted: 11/27/2023] [Indexed: 12/20/2023]
Abstract
Carbon-coated copper nanocrystals (CuNCs) with peroxidase-like activity were hydrothermally prepared by using copper acetate, citric acid (CA) and histidine (His) as the precursors. Various shaped CuNCs, including urchin-like, slab-like and spherical appearance were facilely prepared by addition of different amount of NaNO2 in the precursor solutions. When 3,3',5,5'-tetramethylbenzidine (TMB) was used as the substrate, the CuNCs with urchin-like appearance have greatest peroxidase-like activity and their Michaelis-Menten constant (Km) and the maximum rate constant (νmax) are respectively 8.8 and 1.2 times higher than that obtained from horseradish peroxidase (HRP). The production of reactive oxygen species (ROS) was confirmed by radical quenching and electron spin resonance (ESR) tests. Subsequent studies have found that the CuNCs catalyzed color reaction of TMB can be selectively quenched by the environmental pollutant 2,4-dinitrophenylhydrazine (2,4-DNPH). Thus a new colorimetric method for the determination of 2,4-DNPH with a linear range of 0.60-20 µM was developed and a limit of detection (LOD) as low as 0.166 µM was achieved. The results obtained not only reveal the tunability of the peroxidase-like activity of Cu-based nanomaterials, but also provide a new method for the sensitive determination of environmental contaminate.
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Affiliation(s)
- Zhanghong Guo
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Lin Zhou
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Xuan Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Qijun Song
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China.
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Chai TQ, Chen GY, Chen LX, Wang JL, Zhang CY, Yang FQ. Adenine phosphate-Cu nanozyme with multienzyme mimicking activity for efficient degrading phenolic compounds and detection of hydrogen peroxide, epinephrine and glutathione. Anal Chim Acta 2023; 1279:341771. [PMID: 37827670 DOI: 10.1016/j.aca.2023.341771] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND With the development of nanotechnology, various nanomaterials with enzyme-like activity (nanozymes) have been reported. Due to their superior properties, nanozymes have shown important application potential in the fields of bioanalysis, disease detection, and environmental remediation. However, only a few nanomaterials with multi-enzyme mimicry activity have been reported. In this study, a novel multienzyme mimic was synthesized through a simple and rapid preparation protocol by coordinating copper ions with N3, N6 (amino), N7, and N9 on adenine phosphate. RESULTS The prepared adenine phosphate-Cu complex exhibits significant peroxidase, laccase, and oxidase mimicking activities. The Michaelis-Menten constant (Km) and the maximal velocity (Vmax) values of the peroxidase, laccase, and oxidase mimicking activities of AP-Cu nanozyme are 0.052 mM, 0.14 mM, and 2.49 mM; and 0.552 μM min-1, 6.70 μM min-1, and 2.24 μM min-1, respectively. Then, based on its laccase mimicking activity, the nanozyme was applied in the degradation of phenolic compounds. The calculated kinetic constant for the degradation of 2,4-dichlorophenol is 0.468 min-1 and the degradation efficiency of 2,4-dichlorophenol (0.1 mM) reaches 96.14% at 7 min. Finally, based on the multienzyme mimicking activity of adenine phosphate-Cu nanozyme, simple colorimetric sensing methods with high sensitivity and good selectivity were developed for the detection of hydrogen peroxide, epinephrine, and glutathione in the ranges of 20.0-200.0 μM (R2 = 0.9951), 5.0-100.0 μM (R2 = 0.9970), and 5.0-200.0 μM (R2 = 0.9924) with the limits of quantitation of 20.0 μM, 5.0 μM, and 5.0 μM, respectively. SIGNIFICANCE In short, the synthesis of nanozymes with multi-enzyme mimicry activity through coordination between copper ions and small molecule mimicry enzymes provides new ideas for the design and research of multi-enzyme mimics.
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Affiliation(s)
- Tong-Qing Chai
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Guo-Ying Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Ling-Xiao Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Jia-Li Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Chun-Yan Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China.
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China.
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Song D, Lei L, Tian T, Yang X, Wang L, Li Y, Huang H. A novel strategy for identification of pesticides in different categories by concentration-independent model based on a nanozyme with multienzyme-like activities. Biosens Bioelectron 2023; 237:115458. [PMID: 37311405 DOI: 10.1016/j.bios.2023.115458] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/24/2023] [Accepted: 06/07/2023] [Indexed: 06/15/2023]
Abstract
Conventional rapid detection methods are difficult to identify or distinguish various pesticide residues at the same time. And sensor arrays are also limited by the complexity of preparing multiple receptors and high cost. To address this challenge, a single material with multiple properties is considered. Herein, we first found that different categories of pesticides have diverse regulatory behaviors on the multiple catalytic activities of Asp-Cu nanozyme. Thus, a three-channel sensor array based on the laccase-like, peroxidase-like, and superoxide dismutase-like activities of Asp-Cu nanozyme was constructed and successfully used for the discrimination of eight kinds of pesticides (glyphosate, phosmet, isocarbophos, carbaryl, pentachloronitrobenzene, metsulfuron-methyl, etoxazole, and 2-methyl-4-chlorophenoxyacetic acid). In addition, a concentration-independent model for qualitative identification of pesticides has been established, and 100% correctness was achieved in the recognition of unknown samples. Then, the sensor array also exhibited excellent interference immunity and was reliable for real sample analysis. It provided a reference for pesticide efficient detection and food quality supervision.
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Affiliation(s)
- Donghui Song
- College of Food Science and Engineering, Jilin University, Changchun, 130025, China
| | - Lulu Lei
- College of Food Science and Engineering, Jilin University, Changchun, 130025, China
| | - Tian Tian
- College of Food Science and Engineering, Jilin University, Changchun, 130025, China
| | - Xiaoyu Yang
- College of Food Science and Engineering, Jilin University, Changchun, 130025, China
| | - Luwei Wang
- College of Food Science and Engineering, Jilin University, Changchun, 130025, China
| | - Yongxin Li
- Key Lab of Groundwater Resources and Environment of Ministry of Education, Key Lab of Water Resources and Aquatic Environment of Jilin Province, College of New Energy and Environment, Jilin University, Changchun, 130021, China.
| | - Hui Huang
- College of Food Science and Engineering, Jilin University, Changchun, 130025, China.
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Chen GY, Luo ML, Chen L, Chai TQ, Wang JL, Chen LX, Yang FQ. Rapid and sensitive detection of alkaline phosphatase and glucose oxidase activity through fluorescence and colorimetric dual-mode analysis based on CuO NPs@ZIF-8 mediated enzyme-cascade reactions. NANOSCALE ADVANCES 2023; 5:4950-4967. [PMID: 37705801 PMCID: PMC10496898 DOI: 10.1039/d3na00427a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 08/16/2023] [Indexed: 09/15/2023]
Abstract
The combined application of nanozymes and natural enzymes has received widespread attention in recent years. In this work, a simple and efficient method was used to synthesize a composite material of CuO nanoparticle-modified zeolitic imidazolate framework-8 (CuO NPs@ZIF-8) with multiple enzyme activities (glucose oxidase-like and hydrolase-like activities) to detect the activity of natural enzymes through fluorescence and colorimetric (UV-vis) dual-mode detection. The hydrolase- and oxidase-like activities of CuO NPs@ZIF-8 show an acceptable affinity with l-ascorbic acid 2-phosphate trisodium (AAP) and o-phenylenediamine (OPD). Using the developed sensor, highly sensitive detection of natural enzymes glucose oxidase (GOX) and alkaline phosphatase (ALP) was achieved through both fluorescent and colorimetric analyses with a wide linear range (fluorescence for GOX: 0.86-1.23 × 105 mU mL-1, UV-vis for GOX: 0.081-1.62 × 105 mU mL-1; fluorescence for ALP: 0.042-1.20 × 104 mU mL-1, UV-vis for ALP: 0.0046-1.23 × 104 mU mL-1) and low LOQs (fluorescence for GOX: 0.86 mU mL-1, UV-vis for GOX: 0.081 mU mL-1; fluorescence for ALP: 0.042 mU mL-1, UV-vis for ALP: 0.0046 mU mL-1). Compared to the other fluorescent and colorimetric sensors, this sensor has better catalytic activity due to the addition of GOX and ALP, which can amplify the detection signal and improve the sensitivity. This is the first time that composite material CuO NPs@ZIF-8 with "tandem enzyme" activity was synthesized and applied in the detection of enzyme activity. Additionally, the proposed fluorescent and UV-vis platforms exhibit the capability to detect GOX and ALP in serum samples with satisfactory recovery, indicating potential application prospects in biochemical analysis.
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Affiliation(s)
- Guo-Ying Chen
- School of Chemistry and Chemical Engineering, Chongqing University Chongqing 401331 China +8613617650637
| | - Mao-Ling Luo
- School of Chemistry and Chemical Engineering, Chongqing University Chongqing 401331 China +8613617650637
| | - Li Chen
- College of Optoelectronic Engineering, Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Chongqing University Chongqing 400044 China
| | - Tong-Qing Chai
- School of Chemistry and Chemical Engineering, Chongqing University Chongqing 401331 China +8613617650637
| | - Jia-Li Wang
- School of Chemistry and Chemical Engineering, Chongqing University Chongqing 401331 China +8613617650637
| | - Ling-Xiao Chen
- School of Chemistry and Chemical Engineering, Chongqing University Chongqing 401331 China +8613617650637
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University Chongqing 401331 China +8613617650637
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Song D, Tian T, Yang X, Wang L, Sun Y, Li Y, Huang H. Smartphone-assisted sensor array constructed by copper-based laccase-like nanozymes for specific identification and discrimination of organophosphorus pesticides. Food Chem 2023; 424:136477. [PMID: 37263094 DOI: 10.1016/j.foodchem.2023.136477] [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: 03/08/2023] [Revised: 05/11/2023] [Accepted: 05/26/2023] [Indexed: 06/03/2023]
Abstract
Accurate pesticide identification is of great importance for regulating food safety. However, the discrimination between organophosphorus pesticides (OPs) and carbamate pesticides (CPs) is still a challenge for existing analytical methods based on cholinesterase inhibition. It mainly because of the similar inhibitory effect of OPs and CPs on cholinesterase. Herein, we found that OPs and CPs differentially affected nanozymes with laccase-like activity, which would be interfered by OPs in different degrees rather than CPs. Thus, we fabricated a nanozyme sensor array and successfully achieved the OPs identification and similar individual discrimination, ignoring the interference from CPs or other potential interferents (antibiotics, ions, other pesticides). On the basis of nanozyme sensor array, a portable method using smartphone was constructed and utilized to determine OPs in fruits and vegetables. This work would contribute to the development of portable sensors and the highly selective identification and discrimination of OPs in complex samples.
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Affiliation(s)
- Donghui Song
- College of Food Science and Engineering, Jilin University, Changchun 130025, China
| | - Tian Tian
- College of Food Science and Engineering, Jilin University, Changchun 130025, China
| | - Xiaoyu Yang
- College of Food Science and Engineering, Jilin University, Changchun 130025, China
| | - Luwei Wang
- College of Food Science and Engineering, Jilin University, Changchun 130025, China
| | - Yue Sun
- Key Lab of Groundwater Resources and Environment of Ministry of Education, Key Lab of Water Resources and Aquatic Environment of Jilin Province, College of New Energy and Environment, Jilin University, Changchun 130021, China
| | - Yongxin Li
- Key Lab of Groundwater Resources and Environment of Ministry of Education, Key Lab of Water Resources and Aquatic Environment of Jilin Province, College of New Energy and Environment, Jilin University, Changchun 130021, China.
| | - Hui Huang
- College of Food Science and Engineering, Jilin University, Changchun 130025, China.
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Mohd Mokhtar NAI, Ashari SE, Mohd Zawawi R. Optimization of a lipase/reduced graphene oxide/metal-organic framework electrode using a central composite design-response surface methodology approach. RSC Adv 2023; 13:13493-13504. [PMID: 37152575 PMCID: PMC10155190 DOI: 10.1039/d3ra01060k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 04/24/2023] [Indexed: 05/09/2023] Open
Abstract
Lipase has been gaining attention as the recognition element in electrochemical biosensors. Lipase immobilization is important to maintain its stability while providing excellent conductivity. In this study, a lipase electrochemical biosensor immobilized on a copper-centred metal-organic framework integrated with reduced graphene oxide (lipase/rGO/Cu-MOF) was synthesized by a facile method at room temperature. Response surface methodology (RSM) via central composite design (CCD) was used to optimize the synthesis parameters, which are rGO weight, ultrasonication time, and lipase concentration, to maximize the current response for the detection of p-nitrophenyl acetate (p-NPA). The results of the analysis of variance (ANOVA) showed that all three parameters were significant, while the interaction between the ultrasonication time and lipase concentration was the only significant interaction with a p-value of less than 0.05. The optimized electrode with parameters of 1 mg of rGO, 30 min ultrasonication time, and 30 mg mL-1 lipase exhibited the highest current response of 116.93 μA using cyclic voltammetry (CV) and had a residual standard error (RSE) of less than 2% in validation, indicating that the model is suitable to be used. It was characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and Fourier transform infrared spectroscopy (FTIR), where the integration of the composite was observed. Immobilization using ultrasonication altered the lipase's secondary structure, but reduced its unorderly coils. The electrochemical and thermal analysis showed that the combination of Cu-MOF with rGO enhanced the electrochemical conductivity and thermostability.
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Affiliation(s)
| | - Siti Efliza Ashari
- Integrated Chemical BioPhysics Research, Faculty of Science, Universiti Putra Malaysia 43400 UPM, Serdang Selangor Malaysia
- Centre of Foundation Studies for Agricultural Sciences, Universiti Putra Malaysia 43400 UPM, Serdang Selangor Malaysia
| | - Ruzniza Mohd Zawawi
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia 43400 UPM, Serdang Selangor Malaysia
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12
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Li M, Xie Y, Song D, Huang H, Li Y. 2-Methylimidazole-doped nanozymes with enhanced laccase activity for the (+)-catechins detection in dairy products. Talanta 2023; 252:123853. [DOI: 10.1016/j.talanta.2022.123853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/13/2022] [Accepted: 08/13/2022] [Indexed: 11/30/2022]
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