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Zhang D, Zhang X, Li X, Wang N, Zhao X. Sensitive colorimetric detection of Escherichia coli in milk using Au@Ag core-shell nanoparticles. Talanta 2024; 280:126783. [PMID: 39208679 DOI: 10.1016/j.talanta.2024.126783] [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: 06/12/2024] [Revised: 08/23/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
Escherichia coli (E. coli) is a prevalent pathogen that is frequently associated with the foodborne illness. It causes various infections and poses a significant threat to human health. A rapid and sensitive assay for detecting E. coli is essential for timely diagnosis. Herein, a simple and sensitive colorimetric analysis method for detecting E. coli was developed based on the formation of Au@Ag core-shell nanoparticles facilitated by p-benzoquinone (BQ). E. coli reduced p-benzoquinone to generate hydroquinone (HQ), which could reduce the added Tollens' reagent to silver elemental and grow on the surface of gold nanoparticles (AuNPs). As the E. coli concentration increased, the silver layer thickess on the AuNPs surface growed, resulting in a stronger silver absorption peak observed at 390 nm. The color of the solution changed from red to orange, which could be used to detect E. coli by the naked eye. As a result, E. coli was detected with a linear range from 1.0 × 101 to 1.0 × 107 CFU/mL based on the absorbance intensity. In addition, this method accurately detected E. coli in real milk sample, demonstrating promising applications in foodborne pathogen detection. With satisfactory accuracy, the proposed colorimetric method holds excellent prospects in detecting pathogens in actual food samples.
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Affiliation(s)
- Duoduo Zhang
- School of Pharmacy, Changzhou University, Changzhou, 213164, China.
| | - Xinyu Zhang
- School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Xiuxiu Li
- School of Investigation, China People's Police University, Langfang, 065000, China
| | - Nan Wang
- School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Xiubo Zhao
- School of Pharmacy, Changzhou University, Changzhou, 213164, China.
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2
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Bao L, Zhao Y, Duan S, Wu K, Shan R, Liu Y, Yang Y, Chen Q, Song C, Li W. Ferroptosis is involved in Staphylococcus aureus-induced mastitis through autophagy activation by endoplasmic reticulum stress. Int Immunopharmacol 2024; 140:112818. [PMID: 39083924 DOI: 10.1016/j.intimp.2024.112818] [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: 04/11/2024] [Revised: 07/17/2024] [Accepted: 07/25/2024] [Indexed: 08/02/2024]
Abstract
Cell death caused by severe Staphylococcus aureus (S. aureus) infection is a fatal threat to humans and animals. However, whether ferroptosis, an iron-dependent form of cell death, is involved in S. aureus-induced cell death and its role in S. aureus-induced diseases are unclear. Using a mouse mastitis model and mammary epithelial cells (MMECs), we investigated the role of ferroptosis in the pathogenesis of S. aureus infection. The results revealed that S. aureus-induced ferroptosis in vivo and in vitro as demonstrated by dose-dependent increases in cell death; the level of malondialdehyde (MDA), the final product of lipid peroxidation; and dose-dependent decrease the production of the antioxidant glutathione (GSH). Treatment with typical inhibitors of ferroptosis, including ferrostatin-1 (Fer-1) and deferiprone (DFO), significantly inhibited S. aureus-induced death in MMECs. Mechanistically, treatment with S. aureus activated the protein kinase RNA-like ER kinase (PERK)-eukaryotic initiation factor 2, α subunit (eIF2α)-activating transcription factor 4 (ATF4)-C/EBP homologous protein (CHOP) pathway, which subsequently upregulated autophagy and promoted S. aureus-induced ferroptosis. The activation of autophagy degraded ferritin, resulting in iron dysregulation and ferroptosis. In addition, we found that excessive reactive oxygen species (ROS) production induced ferroptosis and activated endoplasmic reticulum (ER) stress, manifesting as elevated p-PERK-p-eIF2α-ATF4-CHOP pathway protein levels. Collectively, our findings indicate that ferroptosis is involved in S. aureus-induced mastitis via ER stress-mediated autophagy activation, implying a potential strategy for the prevention of S. aureus-associated diseases by targeting ferroptosis. In conclusion, the ROS-ER stress-autophagy axis is involved in regulating S. aureus-induced ferroptosis in MMECs. These findings not only provide a new potential mechanism for mastitis induced by S. aureus but also provide a basis for the treatment of other ferroptotic-related diseases.
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Affiliation(s)
- Lijuan Bao
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Yihong Zhao
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Shiyu Duan
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Keyi Wu
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Ruping Shan
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Yi Liu
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Yang Yang
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Qiujie Chen
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Changlong Song
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China.
| | - Wenjia Li
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China.
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3
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Hu S, Ji J, Chen X, Tong R. Dielectrophoresis: Measurement technologies and auxiliary sensing applications. Electrophoresis 2024; 45:1574-1596. [PMID: 38738705 DOI: 10.1002/elps.202300299] [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: 12/21/2023] [Revised: 04/17/2024] [Accepted: 04/24/2024] [Indexed: 05/14/2024]
Abstract
Dielectrophoresis (DEP), which arises from the interaction between dielectric particles and an aqueous solution in a nonuniform electric field, contributes to the manipulation of nano and microparticles in many fields, including colloid physics, analytical chemistry, molecular biology, clinical medicine, and pharmaceutics. The measurement of the DEP force could provide a more complete solution for verifying current classical DEP theories. This review reports various imaging, fluidic, optical, and mechanical approaches for measuring the DEP forces at different amplitudes and frequencies. The integration of DEP technology into sensors enables fast response, high sensitivity, precise discrimination, and label-free detection of proteins, bacteria, colloidal particles, and cells. Therefore, this review provides an in-depth overview of DEP-based fabrication and measurements. Depending on the measurement requirements, DEP manipulation can be classified into assistance and integration approaches to improve sensor performance. To this end, an overview is dedicated to developing the concept of trapping-on-sensing, improving its structure and performance, and realizing fully DEP-assisted lab-on-a-chip systems.
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Affiliation(s)
- Sheng Hu
- College of Information Science and Engineering, Northeastern University, Shenyang, P. R. China
- Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao, P. R. China
| | - Junyou Ji
- College of Information Science and Engineering, Northeastern University, Shenyang, P. R. China
| | - Xiaoming Chen
- College of Information Science and Engineering, Northeastern University, Shenyang, P. R. China
- Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao, P. R. China
| | - Ruijie Tong
- College of Information Science and Engineering, Northeastern University, Shenyang, P. R. China
- Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao, P. R. China
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4
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C S S, Kini V, Singh M, Mukhopadhyay C, Nag P, Sadani K. Disposable electrochemical biosensors for the detection of bacteria in the light of antimicrobial resistance. Biotechnol Bioeng 2024; 121:2549-2584. [PMID: 38822742 DOI: 10.1002/bit.28735] [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: 12/08/2023] [Revised: 03/30/2024] [Accepted: 04/24/2024] [Indexed: 06/03/2024]
Abstract
Persistent and inappropriate use of antibiotics is causing rife antimicrobial resistance (AMR) worldwide. Common bacterial infections are thus becoming increasingly difficult to treat without the use of last resort antibiotics. This has necessitated a situation where it is imperative to confirm the infection to be bacterial, before treating it with antimicrobial speculatively. Conventional methods of bacteria detection are either culture based which take anywhere between 24 and 96 hor require sophisticated molecular analysis equipment with libraries and trained operators. These are difficult propositions for resource limited community healthcare setups of developing or less developed countries. Customized, inexpensive, point-of-care (PoC) biosensors are thus being researched and developed for rapid detection of bacterial pathogens. The development and optimization of disposable sensor substrates is the first and crucial step in development of such PoC systems. The substrates should facilitate easy charge transfer, a high surface to volume ratio, be tailorable by the various bio-conjugation chemistries, preserve the integrity of the biorecognition element, yet be inexpensive. Such sensor substrates thus need to be thoroughly investigated. Further, if such systems were made disposable, they would attain immunity to biofouling. This article discusses a few potential disposable electrochemical sensor substrates deployed for detection of bacteria for environmental and healthcare applications. The technologies have significant potential in helping reduce bacterial infections and checking AMR. This could help save lives of people succumbing to bacterial infections, as well as improve the overall quality of lives of people in low- and middle-income countries.
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Affiliation(s)
- Sreelakshmi C S
- Department of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Vrinda Kini
- Department of Instrumentation and Control, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Maargavi Singh
- Department of Instrumentation and Control, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Chiranjay Mukhopadhyay
- Department of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Pooja Nag
- Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Kapil Sadani
- Department of Instrumentation and Control, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
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5
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Yan S, Ju X, Lao J, Wen Z, Yong Y, Li Y, Li Y. Overexpression of the Mas1 gene mitigated LPS-induced inflammatory injury in mammary epithelial cells by inhibiting the NF-κB/MAPKs signaling pathways. Front Vet Sci 2024; 11:1446366. [PMID: 39071779 PMCID: PMC11274334 DOI: 10.3389/fvets.2024.1446366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024] Open
Abstract
Breast infection is the primary etiology of mastitis in dairy cows, leading to a reduction in the quality of dairy products and resulting in substantial economic losses for animal husbandry. Although antibiotic treatment can eliminate the pathogenic microorganisms that induce mastitis, it cannot repair the inflammatory damage of mammary epithelial cells and blood milk barrier. Mas1 is a G protein-coupled receptor, and its role in lipopolysaccharide (LPS) -induced inflammatory injury to mammary epithelial cells has not been studied. LPS treatment of EpH4 EV cells led to a significant downregulation of Mas1 transcript levels, which attracted our great interest, suggesting that Mas1 may be an important target for the treatment of mastitis. Therefore, this study intends to verify the role of Mas1 in the inflammatory injury of EpH4 EV cells by gene overexpression technology and gene silencing technology. The findings demonstrated that the overexpression of the Mas1 gene effectively reversed the activation of the nuclear factor-κB/mitogen-activated protein kinase (NF-κB/MAPK) signaling pathways induced by LPS, while also suppressing the upregulation of pro-inflammatory mediators. Furthermore, overexpression of the Mas1 gene reversed the downregulation of zonula occludens 1 (ZO-1), Occludin, and Claudin-3 caused by LPS, suggesting that Mas1 could promote to repair the blood-milk barrier. However, the silencing of the Mas1 gene using siRNA resulted in a contrasting effect. These results indicated that Mas1 alleviated the inflammatory injury of mammary epithelial cells induced by LPS.
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Affiliation(s)
- Shuping Yan
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Xianghong Ju
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
- Marine Medical Research and Development Centre, Shenzheng Institute of Guangdong Ocean University, Shenzheng, China
| | - Jianlong Lao
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Zhaohai Wen
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Yanhong Yong
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Yin Li
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Youquan Li
- Department of Veterinary Medicine, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
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Zhang J, Qi H, Wu JJ, Mao X, Zhang H, Amin N, Xu F, Dong C, Wang C, Wang P, Zheng L. Disposable Peptidoglycan-Specific Biosensor for Noninvasive Real-Time Detection of Broad-Spectrum Gram-Positive Bacteria in Exhaled Breath Condensates. Anal Chem 2024; 96:9817-9825. [PMID: 38730304 DOI: 10.1021/acs.analchem.4c00059] [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: 05/12/2024]
Abstract
Rapidly identifying and quantifying Gram-positive bacteria are crucial to diagnosing and treating bacterial lower respiratory tract infections (LRTIs). This work presents a field-deployable biosensor for detecting Gram-positive bacteria from exhaled breath condensates (EBCs) based on peptidoglycan recognition using an aptamer. Dielectrophoretic force is employed to enrich the bacteria in 10 s without additional equipment or steps. Concurrently, the measurement of the sensor's interfacial capacitance is coupled to quantify the bacteria during the enrichment process. By incorporation of a semiconductor condenser, the whole detection process, including EBC collection, takes about 3 min. This biosensor has a detection limit of 10 CFU/mL, a linear range of up to 105 CFU/mL and a selectivity of 1479:1. It is cost-effective and disposable due to its low cost. The sensor provides a nonstaining, culture-free and PCR-independent solution for noninvasive and real-time diagnosis of Gram-positive bacterial LRTIs.
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Affiliation(s)
- Jian Zhang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Haochen Qi
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
- Department of Electrical Engineering and Computer Science, the University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Jie Jayne Wu
- Department of Electrical Engineering and Computer Science, the University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Xuanjiao Mao
- Clinical Laboratory, The People's Hospital of Pingyang, Wenzhou 325400, China
| | - Hailin Zhang
- Department of Children's Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Niloufar Amin
- Department of Electrical Engineering and Computer Science, the University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Feng Xu
- Department of Gastroenterology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
| | - Changkun Dong
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
| | - Chunchang Wang
- Laboratory of Dielectric Functional Materials, School of Materials Science & Engineering, Anhui University, Hefei 230601, China
| | - Pengjun Wang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
| | - Lei Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
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7
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Shao X, Cao L, Lu L. Ultrasensitive detection of glucose oxidase and alkaline phosphatase in milk based on valence regulated upconversion nanoprobes. Food Chem 2024; 432:137212. [PMID: 37634343 DOI: 10.1016/j.foodchem.2023.137212] [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: 02/18/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 08/29/2023]
Abstract
Fresh milk should undergo sterilization before consumption to eliminate bacteria that can cause foodborne illnesses. Additional antimicrobial measures are beneficial to extend its shelf life. The nanoprobe developed herein can not only inspect the activity of alkaline phosphatase (ALP) for evaluating the degree of pasteurization, but also detect the activity of glucose oxidase (GOD), which is added as a chemical preservative. The facile preparation of the nanoprobe involved introducing gallic acid-Fe complex (GA-Fe) into lanthanide doped upconversion nanomaterials (UCNPs). Based on the alteration of iron's valence state in the complex through a straightforward redox reaction, both enzyme activities could be determined through colorimetric and luminometric dual-signal readouts. With detection limits of 1.669 × 10-5 for GOD and 9.81 × 10-6 U/mL for ALP respectively, this nanoprobe shows merits of easy operation and high sensitivity. Successful application in milk samples demonstrates its potential as an innovative and cost-effective approach to food safety inspection.
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Affiliation(s)
- Xinyu Shao
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan 250014, PR China
| | - Lulu Cao
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan 250014, PR China
| | - Lixia Lu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan 250014, PR China.
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Bao L, Sun H, Zhao Y, Feng L, Wu K, Shang S, Xu J, Shan R, Duan S, Qiu M, Zhang N, Hu X, Zhao C, Fu Y. Hexadecanamide alleviates Staphylococcus aureus-induced mastitis in mice by inhibiting inflammatory responses and restoring blood-milk barrier integrity. PLoS Pathog 2023; 19:e1011764. [PMID: 37948460 PMCID: PMC10664928 DOI: 10.1371/journal.ppat.1011764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/22/2023] [Accepted: 10/18/2023] [Indexed: 11/12/2023] Open
Abstract
Subacute ruminal acidosis (SARA) has been demonstrated to promote the development of mastitis, one of the most serious diseases in dairy farming worldwide, but the underlying mechanism is unclear. Using untargeted metabolomics, we found hexadecanamide (HEX) was significantly reduced in rumen fluid and milk from cows with SARA-associated mastitis. Herein, we aimed to assess the protective role of HEX in Staphylococcus aureus (S. aureus)- and SARA-induced mastitis and the underlying mechanism. We showed that HEX ameliorated S. aureus-induced mastitis in mice, which was related to the suppression of mammary inflammatory responses and repair of the blood-milk barrier. In vitro, HEX depressed S. aureus-induced activation of the NF-κB pathway and improved barrier integrity in mouse mammary epithelial cells (MMECs). In detail, HEX activated PPARα, which upregulated SIRT1 and subsequently inhibited NF-κB activation and inflammatory responses. In addition, ruminal microbiota transplantation from SARA cows (S-RMT) caused mastitis and aggravated S. aureus-induced mastitis, while these changes were reversed by HEX. Our findings indicate that HEX effectively attenuates S. aureus- and SARA-induced mastitis by limiting inflammation and repairing barrier integrity, ultimately highlighting the important role of host or microbiota metabolism in the pathogenesis of mastitis and providing a potential strategy for mastitis prevention.
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Affiliation(s)
- Lijuan Bao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Hao Sun
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Yihong Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Lianjun Feng
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Keyi Wu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Shan Shang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Jiawen Xu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Ruping Shan
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Shiyu Duan
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Min Qiu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Naisheng Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Xiaoyu Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Caijun Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Yunhe Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
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9
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Wang Y, Cheng X, Wang C, Zhang D, Liu A, Wang Z, Wei W, Liu S. Ag +-gated peroxidase activity of gold nanoparticles for sensitive detection of Escherichia coli. Talanta 2023; 264:124779. [PMID: 37311328 DOI: 10.1016/j.talanta.2023.124779] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/15/2023]
Abstract
Escherichia coli (E. coli) is one of the most ubiquitous foodborne pathogens that can cause infections and threaten human health. Herein, a colorimetric method for sensitive detection of E. coli was established by using enzyme-nanozyme cascade reaction for signal amplification. Gold nanoparticles (AuNPs) are well-known nanozymes due to their high peroxidase-like activity. When the dense cetyltrimethylammonium bromide (CTAB) membrane on the surfaces of AuNPs kept the substrate away from AuNPs, the peroxidase activity of AuNPs was inhibited. However, the CTAB membrane could be disrupted by Ag+, resulting in enhanced peroxidase activity of AuNPs. When E. coli was present, the enzyme-nanozyme cascade reaction was initiated. The substrate p-aminophenyl β-D-galactopyranoside (PAPG) was hydrolyzed to the reductive p-aminophenol (PAP) by beta-galactosidase (β-gal) in E. coli, reducing Ag+ to Ag. Consequently, CTAB-AuNPs remained weak peroxidase activity and could not catalyze the H2O2-mediated oxidation of TMB. As the amount of E. coli increased, the absorbance of TMB decreased along with a color change from deep blue to pink. The absorbance intensity displayed a linear dependence on E. coli from 1.0 × 102 to 1.0 × 109 CFU mL-1. Therefore, the proposed method holds good prospects in foodborne pathogenic bacteria detection.
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Affiliation(s)
- Yong Wang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Key Laboratory of Environmental Medicine Engineering, Ministry of Education, State Key Laboratory of Bioelectronics, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Xiao Cheng
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Key Laboratory of Environmental Medicine Engineering, Ministry of Education, State Key Laboratory of Bioelectronics, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Chenchen Wang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Key Laboratory of Environmental Medicine Engineering, Ministry of Education, State Key Laboratory of Bioelectronics, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Duoduo Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Key Laboratory of Environmental Medicine Engineering, Ministry of Education, State Key Laboratory of Bioelectronics, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Anran Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Key Laboratory of Environmental Medicine Engineering, Ministry of Education, State Key Laboratory of Bioelectronics, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Zhi Wang
- Wuxi Institute of Inspection, Testing and Certification, Wuxi, 214125, China
| | - Wei Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Key Laboratory of Environmental Medicine Engineering, Ministry of Education, State Key Laboratory of Bioelectronics, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Key Laboratory of Environmental Medicine Engineering, Ministry of Education, State Key Laboratory of Bioelectronics, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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Xiong Y, Zeng X, Yan L, Wang Y, Lin Y, Ao K, Feng P, Xie Y, Chen P. Target Enzyme-Triggered Click Chemistry and Hybridization Chain Reaction for Fluorescence Nonculture Homogeneous Analysis of E. coli in Bloodstream Infections. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37262009 DOI: 10.1021/acsami.3c04065] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Escherichia coli is the major pathogen that causes bloodstream infections (BSI). It is critical to develop nonculture identification methods which can meet the urgent need of clinical diagnosis and treatment. In this study, we reported a homogeneous fluorescence E. coli analysis system using β-galactosidase (β-Gal) as the biomarker and double-stranded DNA-templated copper nanoparticles (dsDNA-Cu NPs) as the signal output. The product of the enzymatic hydrolysis reaction, p-aminophenol (PAP), could reduce Cu2+ to Cu+, triggering the alkyne-azido cycloaddition reaction (CuAAC). Subsequently, the hybrid chain reaction (HCR) was initiated, producing the dsDNA template used to generate Cu NPs in situ. The system achieved a wide linear range for β-Gal and E. coli 1-104 mU/L and 10-2-10 colony-forming unit (CFU)/mL, and a detection limit of 0.3 mU/L and 0.003 CFU/mL, respectively. 65 samples (45 blood and 20 urine) were collected to evaluate the clinical practicality. The results demonstrated remarkable area under the curve (AUC) values of 0.95 and 0.916 from uncultured urine and blood, respectively. It had 100% specificity and 83.3% sensitivity. The whole duration of the strategy was 3.5 h, which significantly reduced the turnaround time (TAT) and facilitated early BSI diagnosis to improve patients' prognosis. Our work had the potential to be an alternative to culture-based methods in clinics.
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Affiliation(s)
- Ying Xiong
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-Patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xianghu Zeng
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-Patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Li Yan
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-Patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yue Wang
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-Patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yuling Lin
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-Patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Keping Ao
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-Patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Pan Feng
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-Patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yi Xie
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-Patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Piaopiao Chen
- Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-Patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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11
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Rodoplu Solovchuk D, Boyaci IH, Tamer U, Sahiner N, Cetin D. A simple gradient centrifugation method for bacteria detection in skim milk. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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12
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Podunavac I, Kukkar M, Léguillier V, Rizzotto F, Pavlovic Z, Janjušević L, Costache V, Radonic V, Vidic J. Low-cost goldleaf electrode as a platform for Escherichia coli immunodetection. Talanta 2023; 259:124557. [PMID: 37080072 DOI: 10.1016/j.talanta.2023.124557] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 04/22/2023]
Abstract
Gold electrodes are one of most prevalent substrates in electrochemical biosensors because they can be easily and highly efficiently functionalized with thiolated biomolecules. However, conventional methods to fabricate gold electrodes are costly, time-consuming and require onerous equipment. Here, an affordable method for rapid fabrication of an electrochemical immunosensor for Escherichia coli detection is presented. The gold electrode was generated using 24-karat gold leaves and lowcost polyvinyl chloride adhesive sheets covered with an insulating PTFE layer. The goldleaf electrode (GLE) was patterned using laser ablation and characterized by cyclic voltammetry, electrochemical impedance spectroscopy, scanning electronic microscopy, contact angle and 3D profiling. The GLEs were modified by a self-assembled mercaptopropionic monolayer, followed by surface activation to allow binding of the specific anti-E. coli antibody via carbodiimide linking. The biosensor showed a detection limit of 2 CFU/mL and a linear dynamic range of 10-107 CFU/mL for E. coli cells. No false positive signals were obtained from control bacteria. The obtained results demonstrated suitability of GLE for use in biosensors with high reliability and reproducibility. It is foreseeable that our work will inspire design of point-of-need biosensors broadly applicable in low-resource settings.
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Affiliation(s)
- Ivana Podunavac
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia
| | - Manil Kukkar
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia
| | - Vincent Léguillier
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France
| | - Francesco Rizzotto
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France
| | - Zoran Pavlovic
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia
| | | | - Vlad Costache
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France; MIMA2 Imaging Core Facility, Microscopie et Imagerie des Microorganismes, Animaux et Aliments, INRAE, 78350, Jouy-en-Josas, France
| | - Vasa Radonic
- University of Novi Sad, BioSense Institute, 21000 Novi Sad, Serbia.
| | - Jasmina Vidic
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, UMR 1319, 78350 Jouy-en-Josas, France.
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13
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Eshun GB, Crapo HA, Yazgan I, Cronmiller L, Sadik OA. Sugar-Lectin Interactions for Direct and Selective Detection of Escherichia coli Bacteria Using QCM Biosensor. BIOSENSORS 2023; 13:337. [PMID: 36979549 PMCID: PMC10046022 DOI: 10.3390/bios13030337] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/14/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Pathogenic Escherichia coli (E. coli) remains a safety concern in the preservation and quality of green leafy vegetables. Sugar-lectin interactions provide a reliable, specific, and effective sensing platform for the detection of bacteria as compared to the tedious conventional plate counting technique. Herein, we present the synthesis of 4-(N-mannosyl) benzoic acid (4-NMBA) and 4-thiophenyl-N-mannose (4-TNM) via a two-step reductive amination for the detection of E. coli using a quartz crystal microbalance (QCM) biosensor. The 4-NMBA was synthesized with mannose and para-aminobenzoic (4-PBA), while the 4-TNM was synthesized with mannose and 4-aminophenyl disulfide (4-AHP) using water and acetic acid in a 1:1 ratio. The resultant structure of mannose derivatives (4-NMBA and 4-TNM) was characterized and confirmed using analytical tools, such as Mass Spectrometer, SEM, and FTIR. The choice of ligands (mannose derivatives) is ascribed to the specific recognition of mannose to the FimH lectin of the type 1 pilus of E. coli. Furthermore, the 4-PBA and 4-AHP conjugated to mannose increase the ligand affinity to FimH lectins. The setup of the QCM biosensor was composed of modification of the crystal surface and the covalent attachment of ligands for the detection of E. coli. The piezoelectric effect (frequency shift of the quartz) was proportional to the change in mass added to the gold crystal surface. Both the 4-NMBA- and 4-TNM-coated QCM sensors had a limit of detection of 3.7 CFU/mL and 6.6 CFU/mL with a sensitivity of 2.56 × 103 ng/mL and 8.99 × 10-5 ng/mL, respectively, within the dynamic range of 103 to 106 CFU/mL. This study demonstrates the application of ligand-coated QCM biosensors as a cost-effective, simple, and label-free technology for monitoring pathogenic bacteria via molecular interactions on crystal surfaces.
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Affiliation(s)
- Gaddi B. Eshun
- Chemistry and Environmental Science, New Jersey Institute of Technology, University Heights, Newark, NJ 07102, USA
| | - Heather A. Crapo
- Department of Chemistry, Center for Research in Advanced Sensing Technologies & Environmental Sustainability (CREATES), State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Idris Yazgan
- Department of Chemistry, Center for Research in Advanced Sensing Technologies & Environmental Sustainability (CREATES), State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Lauren Cronmiller
- Department of Chemistry, Center for Research in Advanced Sensing Technologies & Environmental Sustainability (CREATES), State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Omowunmi A. Sadik
- Chemistry and Environmental Science, New Jersey Institute of Technology, University Heights, Newark, NJ 07102, USA
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14
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Muthukumar D, Shtenberg G. SERS-based immunosensor for E. coli contaminants detection in milk using silver-coated nanoporous silicon substrates. Talanta 2023; 254:124132. [PMID: 36459872 DOI: 10.1016/j.talanta.2022.124132] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 11/24/2022]
Abstract
The dairy sector is frequently affected by contagious and environmental factors that spread between animals by numerous means and induce the inflammatory disease of bovine mastitis (BM). Herein, silver decorated porous silicon (Ag-pSi) SERS platform was designed for rapid and reliable Escherichia coli (predominant BM pathogen) detection in various milk origins. The inherent surface void and pore morphology were physically optimized to augment the SERS effect using 4-aminothiphenol (4ATP) while achieving an enhancement factor >4.6 × 107. An indirect immunoassay evaluated the residual unreacted antibodies using an optimized 4ATP/Ag-pSi SERS platform modified with secondary antibodies. Under optimized conditions, the porous substrate offered high sensitivity toward target bacteria detection of 3 CFU mL-1 and linear response of 101-105 CFU mL-1. Moreover, the selectivity and specificity of the designed sensing platform were cross-validated against other interfering bacteria without compromising its performance efficiencies. Finally, the applicability of the developed system for real-life conditions was elucidated in different milk samples (bovine, goat, sheep) with recovery values of 78-115% compared to the conventional culture technique. Considering the complex media analysis, the miniaturized SERS platform is highly reliable, rapid and accurate that could be applicable for routine on-site analysis of various emerging pathogens relevant to BM management.
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Affiliation(s)
- Divagar Muthukumar
- Institute of Agricultural Engineering, ARO, Volcani Institute, Rishon LeZion, Israel
| | - Giorgi Shtenberg
- Institute of Agricultural Engineering, ARO, Volcani Institute, Rishon LeZion, Israel.
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15
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Fernández I, Carinelli S, González-Mora JL, Villalonga R, Lecuona M, Salazar-Carballo PA. Electrochemical bioassay based on l-lysine-modified magnetic nanoparticles for Escherichia coli detection: Descriptive results and comparison with other commercial magnetic beads. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Canciu A, Cernat A, Tertis M, Botarca S, Bordea MA, Wang J, Cristea C. Proof of Concept for the Detection with Custom Printed Electrodes of Enterobactin as a Marker of Escherichia coli. Int J Mol Sci 2022; 23:ijms23179884. [PMID: 36077283 PMCID: PMC9456371 DOI: 10.3390/ijms23179884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/20/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022] Open
Abstract
The rapid and decentralized detection of bacteria from biomedical, environmental, and food samples has the capacity to improve the conventional protocols and to change a predictable outcome. Identifying new markers and analysis methods represents an attractive strategy for the indirect but simpler and safer detection of pathogens that could replace existing methods. Enterobactin (Ent), a siderophore produced by Escherichia coli or other Gram-negative bacteria, was studied on different electrode materials to reveal its electrochemical fingerprint—very useful information towards the detection of the bacteria based on this analyte. The molecule was successfully identified in culture media samples and a future goal is the development of a rapid antibiogram. The presence of Ent was also assessed in wastewater and treated water samples collected from the municipal sewage treatment plant, groundwater, and tap water. Moreover, a custom configuration printed on a medical glove was employed to detect the target in the presence of another bacterial marker, namely pyocyanin (PyoC), that being a metabolite specific of another pathogen bacterium, namely Pseudomonas aeruginosa. Such new mobile and wearable platforms offer considerable promise for rapid low-cost on-site screening of bacterial contamination.
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Affiliation(s)
- Alexandra Canciu
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
| | - Andreea Cernat
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
| | - Mihaela Tertis
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
| | - Silvia Botarca
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
| | - Madalina Adriana Bordea
- Microbiology Department, Faculty of Medicine, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
| | - Joseph Wang
- Department of Nanoengineering, University of California, La Jolla, San Diego, CA 92093, USA
| | - Cecilia Cristea
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
- Correspondence:
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17
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Zhang J, Wu JJ, Chen L. Editorial: Advanced Strategies for the Recognition, Enrichment, and Detection of Low Abundance Target Bioanalytes. Front Bioeng Biotechnol 2022; 10:957878. [PMID: 36061439 PMCID: PMC9428691 DOI: 10.3389/fbioe.2022.957878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jian Zhang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, China
- *Correspondence: Jian Zhang, ; Jie Jayne Wu,
| | - Jie Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, United States
- *Correspondence: Jian Zhang, ; Jie Jayne Wu,
| | - Li Chen
- College of Photoelectric Engineering, Chongqing University, Chongqing, China
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18
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Dkhar DS, Kumari R, Mahapatra S, Divya, Kumar R, Tripathi T, Chandra P. Antibody-receptor bioengineering and its implications in designing bioelectronic devices. Int J Biol Macromol 2022; 218:225-242. [PMID: 35870626 DOI: 10.1016/j.ijbiomac.2022.07.109] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 11/16/2022]
Abstract
Antibodies play a crucial role in the defense mechanism countering pathogens or foreign antigens in eukaryotes. Its potential as an analytical and diagnostic tool has been exploited for over a century. It forms immunocomplexes with a specific antigen, which is the basis of immunoassays and aids in developing potent biosensors. Antibody-based sensors allow for the quick and accurate detection of various analytes. Though classical antibodies have prolonged been used as bioreceptors in biosensors fabrication due to their increased fragility, they have been engineered into more stable fragments with increased exposure of their antigen-binding sites in the recent era. In biosensing, the formats constructed by antibody engineering can enhance the signal since the resistance offered by a conventional antibody is much more than these fragments. Hence, signal amplification can be observed when antibody fragments are utilized as bioreceptors instead of full-length antibodies. We present the first systematic review on engineered antibodies as bioreceptors with the description of their engineering methods. The detection of various target analytes, including small molecules, macromolecules, and cells using antibody-based biosensors, has been discussed. A comparison of the classical polyclonal, monoclonal, and engineered antibodies as bioreceptors to construct highly accurate, sensitive, and specific sensors is also discussed.
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Affiliation(s)
- Daphika S Dkhar
- Laboratory of Bio-Physio Sensors and Nano-bioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Uttar Pradesh 221005, India
| | - Rohini Kumari
- Laboratory of Bio-Physio Sensors and Nano-bioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Uttar Pradesh 221005, India
| | - Supratim Mahapatra
- Laboratory of Bio-Physio Sensors and Nano-bioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Uttar Pradesh 221005, India
| | - Divya
- Laboratory of Bio-Physio Sensors and Nano-bioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Uttar Pradesh 221005, India
| | - Rahul Kumar
- Laboratory of Bio-Physio Sensors and Nano-bioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Uttar Pradesh 221005, India
| | - Timir Tripathi
- Molecular and Structural Biophysics Laboratory, Department of Biochemistry, North-Eastern Hill University, Shillong 793022, India; Regional Director's Office, Indira Gandhi National Open University (IGNOU), Regional Centre Kohima, Kenuozou, Kohima 797001, India.
| | - Pranjal Chandra
- Laboratory of Bio-Physio Sensors and Nano-bioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Uttar Pradesh 221005, India.
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19
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Kusumawati A, Mustopa AZ, Wibawan IWT, Setiyono A, Sudarwanto MB. A sequential toggle cell-SELEX DNA aptamer for targeting Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli bacteria. J Genet Eng Biotechnol 2022; 20:95. [PMID: 35776386 PMCID: PMC9249959 DOI: 10.1186/s43141-022-00374-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/02/2022] [Indexed: 12/26/2022]
Abstract
BACKGROUND Mastitis is an inflammation of the mammary glands caused by a microbial infection. The common bacteria causing this infection in dairy farms are Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli. The aptamer is a new biosensor platform for detecting pathogens; however, its use for simultaneous detection of S. aureus, S. agalactiae, and E. coli bacteria has not been reported. This study's objective is to isolate and characterize polyclonal DNA aptamer with broad reactivity to the mastitis bacteria S. aureus, S. agalactiae, and E. coli using a sequential toggle cell-SELEX. METHODS AND RESULTS The DNA aptamer pool from SELEX 15 was inserted into the pGEM-T easy plasmid. Furthermore, the transformant clones were selected by PCR colony, plasmid isolation, and sequencing. Six DNA aptamers, consisting of S15K3, S15K4, S15K6, S15K13, S15K15, and S15K20 with a constant region and the right size of 81 bp were derived from the sequencing analysis. The secondary structure of the DNA was predicted using Mfold software. The DNA was analyzed with binding characteristics, including binding capacity and affinity (Kd), using qPCR. The results indicated aptamer S15K15 has the highest binding ability into S. agalactiae, while S15K13 performed binding capacity most to E. coli EPEC 4, and S15K3 has the highest capacity of binding to S. aureus BPA-12. CONCLUSION Aptamer S15K3 has the best binding characteristics on all three bacterial targets.
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Affiliation(s)
- Arizah Kusumawati
- Study Program of Veterinary Public Health, IPB Graduate School, IPB University, Bogor, Indonesia
- Research Center for Biotechnology, National Research and Innovation Agency (BRIN), Cibinong, Bogor, 16911 Indonesia
| | - Apon Zaenal Mustopa
- Research Center for Biotechnology, National Research and Innovation Agency (BRIN), Cibinong, Bogor, 16911 Indonesia
| | - I. Wayan Teguh Wibawan
- Department of Animal Diseases and Veterinary Public Health, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
- Division of Medical Microbiology, Department of Animal Infectious Diseases and Veterinary Public Health, Faculty of Veterinary Medicine, IPB University, Agatis Street, Dramaga, Bogor, West Java 16680 Indonesia
| | - Agus Setiyono
- Department of Veterinary Clinic Reproduction and Pathology, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
| | - Mirnawati Bachrum Sudarwanto
- Department of Animal Diseases and Veterinary Public Health, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
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20
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Cossettini A, Vidic J, Maifreni M, Marino M, Pinamonti D, Manzano M. Rapid detection of Listeria monocytogenes, Salmonella, Campylobacter spp., and Escherichia coli in food using biosensors. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108962] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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Bai Z, Xu X, Wang C, Wang T, Sun C, Liu S, Li D. A Comprehensive Review of Detection Methods for Escherichia coli O157:H7. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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22
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Li P, Fu T, Cai A, Descovich K, Lian H, Gao T, Phillips CJC. Effect of Peanut Shell and Rice Husk Bedding for Dairy Cows: An Analysis of Material Properties and Colostrum Microbiota. Animals (Basel) 2022; 12:ani12050603. [PMID: 35268172 PMCID: PMC8909170 DOI: 10.3390/ani12050603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/23/2022] [Accepted: 02/24/2022] [Indexed: 12/04/2022] Open
Abstract
Simple Summary The provision of appropriate bedding is important for the welfare of dairy cows. Before bedding can be selected, it is critical to understand the properties of the bedding, including its impact on milk microbiota. The objective of this article was to evaluate the influence of three materials for use as bedding on physicochemical properties, bacterial counts and colostrum microbiota of cows. Our results demonstrate that peanut shells appear to be a suitable bedding material for cows. These experiments provide empirical support for the use of peanut shells and rice husks as bedding material for dairy cows and illustrates the effects of bedding types on the colostrum microbiota of dairy cows. Abstract The aim of this study was to evaluate peanut shells and rice husks as bedding for dairy cows. We analyzed material properties including dry matter, water holding capacity, pH level and bacterial counts. Bedding treatments were compared with a one-way ANOVA using twelve cows split into three groups. Colostrum microbiota was analyzed by sequencing of the V3–V4 region of the 16S rRNA gene. Dry matter content was higher in rice husks compared with peanut shells. No treatment effects were found for water holding capacity and pH level. Streptococcus agalactia counts in peanut shell bedding were lower than in rice husk bedding, and Pseudomonas aeruginosa counts were not different between beddings. A significant enrichment for Enhydrobacter and Pantoea were detected in the colostrum of cows that used peanut shells compared with other beddings. Colostrum of cows housed on a peanut–rice combination had a greater relative abundance of Pseudomonas and Corynebacterium than those housed on peanut shells or rice husks. Higher numbers of Bacteroides, Akkermansia, Alistipes, Ruminococcaceae_UCG-014, Coriobacteriaceae_UCG-002 and Intestinimona were found in the colostrum of cows housed on rice husk bedding over other bedding types. These results suggest that bedding types were associated with the growth and diversity of colostrum bacterial loads. In addition, dry matter in peanut shells was lower than found in rice husks, but there was also a lower risk of mastitis for peanut shell bedding than other beddings.
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Affiliation(s)
- Pengtao Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (P.L.); (T.F.); (A.C.); (H.L.)
| | - Tong Fu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (P.L.); (T.F.); (A.C.); (H.L.)
| | - Amin Cai
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (P.L.); (T.F.); (A.C.); (H.L.)
| | - Kris Descovich
- Center for Animal Welfare and Ethics, School of Veterinary Science, The University of Queensland, Gatton, QLD 4343, Australia;
| | - Hongxia Lian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (P.L.); (T.F.); (A.C.); (H.L.)
| | - Tengyun Gao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (P.L.); (T.F.); (A.C.); (H.L.)
- Correspondence: (T.G.); (C.J.C.P.)
| | - Clive J. C. Phillips
- Center for Animal Welfare and Ethics, School of Veterinary Science, The University of Queensland, Gatton, QLD 4343, Australia;
- Sustainable Policy (CUSP) Institute, Curtin University, Bentley, WA 6102, Australia
- Correspondence: (T.G.); (C.J.C.P.)
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23
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Wang JP, Hu QC, Yang J, Luoreng ZM, Wang XP, Ma Y, Wei DW. Differential Expression Profiles of lncRNA Following LPS-Induced Inflammation in Bovine Mammary Epithelial Cells. Front Vet Sci 2021; 8:758488. [PMID: 34778437 PMCID: PMC8589037 DOI: 10.3389/fvets.2021.758488] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 10/04/2021] [Indexed: 12/29/2022] Open
Abstract
Bovine mastitis is an inflammatory response of mammary glands caused by pathogenic microorganisms such as Escherichia coli (E. coli). As a key virulence factor of E. coli, lipopolysaccharide (LPS) triggers innate immune responses via activation of the toll-like-receptor 4 (TLR4) signaling pathway. However, the molecular regulatory network of LPS-induced bovine mastitis has yet to be fully mapped. In this study, bovine mammary epithelial cell lines MAC-T were exposed to LPS for 0, 6 and 12 h to assess the expression profiles of long non-coding RNAs (lncRNAs) using RNA-seq. Differentially expressed lncRNAs (DElncRNAs) were filtered out of the raw data for subsequent analyses. A total of 2,257 lncRNAs, including 210 annotated and 2047 novel lncRNAs were detected in all samples. A large proportion of lncRNAs were present in a high abundance, and 112 DElncRNAs were screened out at different time points. Compared with 0 h, there were 22 up- and 25 down-regulated lncRNAs in the 6 h of post-infection (hpi) group, and 27 up- and 22 down-regulated lncRNAs in the 12 hpi group. Compared with the 6 hpi group, 32 lncRNAs were up-regulated and 25 lncRNAs were down-regulated in the 12 hpi group. These DElncRNAs are involved in the regulation of a variety of immune-related processes including inflammatory responses bMECs exposed to LPS. Furthermore, lncRNA TCONS_00039271 and TCONS_00139850 were respectively significance down- and up-regulated, and their target genes involve in regulating inflammation-related signaling pathways (i.e.,Notch, NF-κB, MAPK, PI3K-Akt and mTOR signaling pathway), thereby regulating the occurrence and development of E. coli mastitis. This study provides a resource for lncRNA research on the molecular regulation of bovine mastitis.
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Affiliation(s)
- Jin-Peng Wang
- School of Agriculture, Ningxia University, Yinchuan, China.,Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Qi-Chao Hu
- School of Agriculture, Ningxia University, Yinchuan, China.,Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Jian Yang
- School of Agriculture, Ningxia University, Yinchuan, China.,Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Zhuo-Ma Luoreng
- School of Agriculture, Ningxia University, Yinchuan, China.,Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Xing-Ping Wang
- School of Agriculture, Ningxia University, Yinchuan, China.,Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Yun Ma
- School of Agriculture, Ningxia University, Yinchuan, China.,Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
| | - Da-Wei Wei
- School of Agriculture, Ningxia University, Yinchuan, China.,Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan, China
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24
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Ren S, Zhang X, Li Z, Jian X, Zhao J, Song YY. Development of a pulse-induced electrochemical biosensor based on gluconamide for Gram-negative bacteria detection. Mikrochim Acta 2021; 188:399. [PMID: 34716816 DOI: 10.1007/s00604-021-05073-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/18/2021] [Indexed: 11/24/2022]
Abstract
Pathogenic bacteria can cause the outbreaks of disease and threaten human health, which stimulates the development of advanced detection techniques. Herein, a specific and sensitive electrochemical biosensor for Gram-negative bacteria was established based on the conductive polymer with artificial muscle properties. The effective recognition was achieved through the specific carbohydrate-carbohydrate interaction between gluconamide and lipopolysaccharide. The application of impulse voltage enhances the efficiency of recognition and shortens the detection time through the temporary deformation of the electrode surface, with a limit of detection (LOD) of 1 × 100 CFU/mL and a linear range of 1 × 100 - 1 × 106 CFU/mL for Escherichia coli (E. coli). In addition to the merits of low cost, high efficiency, and rapidity, the developed label-free electrochemical biosensor can also be applicable for other Gram-negative bacteria, owning promising potential in the application of portable devices and paving a potential way for the construction of electrochemical biosensors.
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Affiliation(s)
- Sida Ren
- College of Science, Northeastern University, Shenyang, 110004, China
| | - Xi Zhang
- College of Science, Northeastern University, Shenyang, 110004, China
| | - Zhijie Li
- College of Science, Northeastern University, Shenyang, 110004, China
| | - Xiaoxia Jian
- College of Science, Northeastern University, Shenyang, 110004, China
| | - Junjian Zhao
- College of Science, Northeastern University, Shenyang, 110004, China
| | - Yan-Yan Song
- College of Science, Northeastern University, Shenyang, 110004, China.
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25
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Qi H, Huang X, Wu J, Zhang J, Wang F, Qu H, Zheng L. A disposable aptasensor based on a gold-plated coplanar electrode array for on-site and real-time determination of Cu 2. Anal Chim Acta 2021; 1183:338991. [PMID: 34627507 DOI: 10.1016/j.aca.2021.338991] [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: 04/12/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 11/25/2022]
Abstract
Copper ion (Cu2+) is an important cofactor for many enzymes in human body. Either excessive or deficient Cu2+ in the body may cause serious dysfunctions and diseases. So sensitive determination of Cu2+ in environmental samples is of more significance for evaluation and control of Cu2+ intake. Based on a low-cost gold-plated coplanar electrode array, a disposable aptasensor is developed with an ultra-sensitive indicator of interfacial capacitance. Modified with a specially isolated DNA aptamer for Cu2+, this sensor achieves a high selectivity of 1207: 1 against non-target ions. To realize real-time response, alternating-current electrothermal effect is integrated into the capacitance measuring process to efficiently enrich the trace Cu2+. This sensor reaches a limit of detection of 2.97 fM, with a linear range from 5.0 fM to 50 pM. The response time is only 15 s, which can meet the real-time detection requirement. On-site test of practical samples is also realized using the disposable sensor combined with a handheld inductance/capacitance/resistance meter. This sensor with its portable test system provides a cost-efficient solution for on-site, real-time and sensitive detection of Cu2+, showing great application value in environment monitoring.
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Affiliation(s)
- Haochen Qi
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, China; School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China
| | - Xiaofan Huang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, 37996, USA.
| | - Jian Zhang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, China; School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China.
| | - Fei Wang
- Beijing Smartchip Microelectronics Technology Company Limited, Beijing, 102200, China
| | - Hao Qu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Lei Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
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26
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Rose L, Mary XA, Johnson I, Srinivasan G, Priya L, Bhagavathsingh J. Polyaza functionalized graphene oxide nanomaterial based sensor for Escherichia coli detection in water matrices. Sci Rep 2021; 11:16872. [PMID: 34413450 PMCID: PMC8377045 DOI: 10.1038/s41598-021-96539-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 07/26/2021] [Indexed: 11/30/2022] Open
Abstract
Water quality is widely discussed owing to its significance in public health due to the inability to access clean water. Waterborne diseases account for the presence of pathogens like Escherichia coli (E. coli) in drinking water in the environmental community. Owing to the rapid increase of such bacterial microorganisms, a cost-effective sensor setup has been developed. Herein, we demonstrate the amine-functionalized graphene oxide (fGO) based 2D nanomaterial used to graft E. coli on its surface. The comparative analysis of the deposition of nanosheets on the glass substrate and PDMS was executed. The impedance variations of GO-based nanosensor at various concentrations of E. coli were performed and their potential difference was recorded. It was observed that the impedance changes inversely with the bacterial concentrations and was fed to the Arduino microcontroller. The experimental setup was standardized for the range of 0.01 Hz to 100 kHz. The obtained analog data was programmed with a microcontroller and the bacterial concentration in colony-forming units was displayed. The real-time analysis showsthe low-level detection of E. coli in aquatic environments. Experiments were conducted using the developed nanosensor to test the efficiency in complex water matrices and whose behavior changes with various physical, chemical, and environmental factors.
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Affiliation(s)
- Lina Rose
- Department of Biomedical Engineering, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, 641 114, India
| | - X Anitha Mary
- Department of Robotics Engineering, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, 641 114, India
| | - I Johnson
- Department of Millets, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, 641003, India
| | - Ganesh Srinivasan
- Department of Applied Chemistry, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, 641 114, India
| | - Lakshmi Priya
- Department of Applied Chemistry, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, 641 114, India
| | - Jebasingh Bhagavathsingh
- Department of Applied Chemistry, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, 641 114, India.
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Zhang J, Fang X, Mao Y, Qi H, Wu J, Liu X, You F, Zhao W, Chen Y, Zheng L. Real-time, selective, and low-cost detection of trace level SARS-CoV-2 spike-protein for cold-chain food quarantine. NPJ Sci Food 2021; 5:12. [PMID: 34075052 PMCID: PMC8357935 DOI: 10.1038/s41538-021-00094-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/06/2021] [Indexed: 02/08/2023] Open
Abstract
Due to the friendly temperature for virus survival, SARS-CoV-2 is frequently found in cold-chain foods, posing a serious threat to public health. Utilizing an interdigitated microelectrode chip modified with an antibody probe and integrating dielectrophoresis enrichment with interfacial capacitance sensing, a strategy is presented for the detection of trace level spike-protein from SARS-CoV-2. It achieves a limit of detection as low as 2.29 × 10-6 ng/mL in 20 s, with a wide linear range of 10-5-10-1 ng/mL and a selectivity of 234:1. The cost for a single test can be controlled to ~1 dollar. This strategy provides a competitive solution for real-time, sensitive, selective, and large-scale application in cold-chain food quarantine.
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Affiliation(s)
- Jian Zhang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China.,School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Xin Fang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China
| | - Yu Mao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Haochen Qi
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China.
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, USA.
| | - Xiaoru Liu
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China
| | - Fangshuo You
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China
| | - Wenci Zhao
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, China
| | - Ying Chen
- Agro-product Safety Research Centre, Chinese Academy of Inspection and Quarantine, Beijing, China
| | - Lei Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.
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28
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Rapid and Sensitive Point of Care Detection of MRSA Genomic DNA by Nanoelectrokinetic Sensors. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9050097] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Biosensors have shown great potential in realizing rapid, low cost, and portable on-site detection for diseases. This work reports the development of a new bioelectronic sensor called AC electrokinetics-based capacitive (ABC) biosensor, for the detection of genomic DNA (gDNA) of methicillin-resistant Staphylococcus aureus (MRSA). The ABC sensor is based on interdigitated microelectrodes biofunctionalized with oligonucleotide probes. It uses a special AC signal for direct capacitive monitoring of topological change on nanostructured sensor surface, which simultaneously induces dielectrophoretic enrichment of target gDNAs. As a result, rapid and specific detection of gDNA/probe hybridization can be realized with high sensitivity. It requires no signal amplification such as labeling, hybridization chain reaction, or nucleic acid sequence-based amplification. This method involves only simple sample preparation. After optimization of nanostructured sensor surface and signal processing, the ABC sensor demonstrated fast turnaround of results (~10 s detection), excellent sensitivity (a detection limit of 4.7 DNA copies/µL MRSA gDNA), and high specificity, suitable for point of care diagnosis. As a bioelectronic sensor, the developed ABC sensors can be easily adapted for detections of other infectious agents.
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29
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Controllable design of a nano-bio aptasensing interface based on tetrahedral framework nucleic acids in an integrated microfluidic platform. Biosens Bioelectron 2021; 176:112943. [PMID: 33421762 DOI: 10.1016/j.bios.2020.112943] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/15/2020] [Accepted: 12/26/2020] [Indexed: 02/04/2023]
Abstract
The limited reaction time and sample volume in the confined space of microfluidic devices give considerable importance to the development of more effective biosensing interfaces. Herein, the self-assembling of tetrahedral framework nucleic acids (FNAs) with controllable size on the interface of the microfluidic microchannels is studied. Compared with macroscopic turbulence control on traditional micro-structured microfluidic surface, the novel FNA-engineered microfluidic interface successfully constructs a 3D reaction space at nanoscale by raising DNA probes away from the surface. This FNA interface dramatically improves the reaction kinetics during molecular recognition due to extremely ordered orientation, configuration and density of DNA probes on the surface. Finally, the FNA-engineered interface is applied in a novel multi-functional microfluidic platform, towards a "one-stop" assay of Escherichia coli O157: H7 (E. coli O157: H7), integrating capture, release, enrichment, cell culture and antimicrobial susceptibility testing (AST). With the FNA-aptamer probe, we achieved an enhanced bacterial detecting efficiency (10 CFU/mL) plus excellent selectivity and precision. The appicability was strongly demonstrated when the biosensor was successfully applied in real samples, including the analysis of antibiotic susceptibility and minimum inhibitory concentration (MIC) of E. coli O157: H7 among different antibiotics. The application of FNA interface will open a wide avenue for the development of microfluidic biosensors for other pathogenic microorganisms or circulating tumor cells (CTC) simply by changing the aptamers.
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30
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Li Y, Wang Y, Wan K, Wu M, Guo L, Liu X, Wei G. On the design, functions, and biomedical applications of high-throughput dielectrophoretic micro-/nanoplatforms: a review. NANOSCALE 2021; 13:4330-4358. [PMID: 33620368 DOI: 10.1039/d0nr08892g] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As an efficient, rapid and label-free micro-/nanoparticle separation technique, dielectrophoresis (DEP) has attracted widespread attention in recent years, especially in the field of biomedicine, which exhibits huge potential in biomedically relevant applications such as disease diagnosis, cancer cell screening, biosensing, and others. DEP technology has been greatly developed recently from the low-flux laboratory level to high-throughput practical applications. In this review, we summarize the recent progress of DEP technology in biomedical applications, including firstly the design of various types and materials of DEP electrode and flow channel, design of input signals, and other improved designs. Then, functional tailoring of DEP systems with endowed specific functions including separation, purification, capture, enrichment and connection of biosamples, as well as the integration of multifunctions, are demonstrated. After that, representative DEP biomedical application examples in aspects of disease detection, drug synthesis and screening, biosensing and cell positioning are presented. Finally, limitations of existing DEP platforms on biomedical application are discussed, in which emphasis is given to the impact of other electrodynamic effects such as electrophoresis (EP), electroosmosis (EO) and electrothermal (ET) effects on DEP efficiency. This article aims to provide new ideas for the design of novel DEP micro-/nanoplatforms with desirable high throughput toward application in the biomedical community.
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Affiliation(s)
- Yalin Li
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, PR China.
| | - Yan Wang
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, PR China.
| | - Keming Wan
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, PR China.
| | - Mingxue Wu
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, PR China.
| | - Lei Guo
- Research Center for High-Value Utilization of Waste Biomass, College of Life Science, College of Life Science, Qingdao University, 266071 Qingdao, PR China
| | - Xiaomin Liu
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, PR China.
| | - Gang Wei
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, PR China.
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