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Wang Z, Cai R, Gao Z, Yuan Y, Yue T. Immunomagnetic separation: An effective pretreatment technology for isolation and enrichment in food microorganisms detection. Compr Rev Food Sci Food Saf 2020; 19:3802-3824. [PMID: 33337037 DOI: 10.1111/1541-4337.12656] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/17/2020] [Accepted: 09/24/2020] [Indexed: 12/24/2022]
Abstract
The high efficiency and accurate detection of foodborne pathogens and spoilage microorganisms in food are a task of great social, economic, and public health importance. However, the contamination levels of target bacteria in food samples are very low. Owing to the background interference of food ingredients and negative impact of nontarget flora, the establishment of efficient pretreatment techniques is very crucial for the detection of food microorganisms. With the significant advantages of high specificity and great separation efficiency, immunomagnetic separation (IMS) assay based on immunomagnetic particles (IMPs) has been considered as a powerful system for the separation and enrichment of target bacteria. This paper mainly focuses on the development of IMS as well as their application in food microorganisms detection. First, the basic principle of IMS in the concentration of food bacteria is presented. Second, the effect of different factors, including the sizes of magnetic particles (MPs), immobilization of antibody and operation parameters (the molar ratio of antibody to MPs, the amount of IMPs, incubation time, and bacteria concentration) on the immunocapture efficiency of IMPs are discussed. The performance of IMPs in different food samples is also evaluated. Finally, the combination of IMS and various kinds of detection methods (immunology-based methods, nucleic acid-based methods, fluorescence methods, and biosensors) to detect pathogenic and spoilage organisms is summarized. The challenges and future trends of IMS are also proposed. As an effective pretreatment technique, IMS can improve the detection sensitivity and shorten their testing time, thus exhibiting broad prospect in the field of food bacteria detection.
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Affiliation(s)
- Zhouli Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.,Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China.,National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi, China
| | - Rui Cai
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.,Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China.,National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi, China
| | - Zhenpeng Gao
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.,Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China.,National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.,Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China.,National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.,Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China.,National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling, Shaanxi, China
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Haghighi AH, Khorasani MT, Faghih Z, Farjadian F. Effects of different quantities of antibody conjugated with magnetic nanoparticles on cell separation efficiency. Heliyon 2020; 6:e03677. [PMID: 32280795 PMCID: PMC7136644 DOI: 10.1016/j.heliyon.2020.e03677] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 10/21/2019] [Accepted: 03/24/2020] [Indexed: 11/30/2022] Open
Abstract
Antibody-conjugated magnetic nanoparticles (Ab-MNPs) have received considerable attention in bioseparation and clinical diagnostics assays due to their unique ability to detect and isolate a variety of biomolecules and cells. Because antibodies can be expensive, a key challenge for bioconjugation is to determine the optimal amount of antibodies with reasonable antigen-capturing activity. We designed an approach to determine the minimum amounts of antibodies for efficient coating. Different quantities of Herceptin (anti-human epidermal growth factor receptor 2: HER2) antibody were applied and immobilized on the surface of MNPs. Antibody binding was then checked by using an anti-human antibody conjugated with fluorochrome and flow cytometry. When the ratio of MNPs to antibodies increased from 0.79 to 795.45, mean fluorescence intensity (MFI) of conjugated MNPs decreased markedly from 185.56 to 20.07, indicating lower surface antibody coverage. We then investigated the relation between antibody content and isolation efficiency. Three Ab-MNP samples with different MFI were used to isolate SK-BR-3, a HER2-positive breast cancer cell line, from mixtures of whole blood or mononuclear cells. After isolation in a magnetic field, separation efficiency was evaluated by fluorescence microscopy and flow cytometry-based techniques. Our results collectively showed that the amount of anti-HER2 antibodies for conjugation with MNPs could be decreased by as much as one-fifteenth without compromising isolation efficiency, which in turn can reduce the cost of immunoassay biosensors.
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Affiliation(s)
- Amir Hossein Haghighi
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Zahra Faghih
- Shiraz Institute for Cancer Research, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Farjadian
- Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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Abstract
The early detection of Legionella in water reservoirs, and the prevention of their often fatal diseases, requires the development of rapid and reliable detection processes. A method for the magnetic separation (MS) of Legionella pneumophila by superparamagnetic iron oxide nanoparticles is developed, which represents the basis for future bacteria detection kits. The focus lies on the separation process and the simplicity of using magnetic nanomaterials. Iron oxide nanoparticles are functionalized with epoxy groups and Legionella-specific antibodies are immobilized. The resulting complexes are characterized with infrared spectroscopy and tested for the specific separation and enrichment of the selected microorganisms. The cell-particle complexes can be isolated in a magnetic field and detected with conventional methods such as fluorescence detection. A nonspecific enrichment of bacteria is also possible by using bare iron oxide nanoparticles (BIONs), which we used as a reference to the nanoparticles with immobilized antibodies. Furthermore, the immunomagnetic separation can be applied for the detection of multiple other microorganisms and thus might pave the way for simpler bacterial diagnosis.
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Chen H, Hu H, Tao C, Clauson RM, Moncion I, Luan X, Hwang S, Sough A, Sansanaphongpricha K, Liao J, Paholak HJ, Stevers NO, Wang G, Liu B, Sun D. Self-Assembled Au@Fe Core/Satellite Magnetic Nanoparticles for Versatile Biomolecule Functionalization. ACS APPLIED MATERIALS & INTERFACES 2019; 11:23858-23869. [PMID: 31245984 DOI: 10.1021/acsami.9b05544] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Although the functionalization of magnetic nanoparticles (MNPs) with biomolecules has been widely explored for various biological applications, achieving efficient bioconjugations with a wide range of biomolecules through a single, universal, and versatile platform remains a challenge, which may significantly impact their applications' outcomes. Here, we report a novel MNP platform composed of Au@Fe core/satellite nanoparticles (CSNPs) for versatile and efficient bioconjugations. The engineering of the CSNPs is facilely formed through the self-assembly of ultrasmall gold nanoparticles (AuNPs, 2-3 nm in diameter) around MNPs with a polysiloxane-containing polymer coating. The formation of the hybrid magnetic nanostructure is revealed by absorption spectroscopy, dynamic light scattering (DLS), transmission electron microscopy (TEM), element analysis using atomic absorption spectroscopy, and vibrating sample magnetometer. The versatility of biomolecule loading to the CSNP is revealed through the bioconjugation of a wide range of relevant biomolecules, including streptavidin, antibodies, peptides, and oligonucleotides. Characterizations including DLS, TEM, lateral flow strip assay, fluorescence assay, giant magnetoresistive nanosensor array, high-performance liquid chromatography, and absorption spectrum are performed to further confirm the efficiency of various bioconjugations to the CSNP. In conclusion, this study demonstrates that the CSNP is a novel MNP-based platform that offers versatile and efficient surface functionalization with various biomolecules.
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Affiliation(s)
- Hongwei Chen
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Hongxiang Hu
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Chun Tao
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Ryan M Clauson
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Ila Moncion
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Xin Luan
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Sangyeul Hwang
- IMRA America, Inc. , 1044 Woodridge Avenue , Ann Arbor , Michigan 48105 , United States
| | - Ashley Sough
- IMRA America, Inc. , 1044 Woodridge Avenue , Ann Arbor , Michigan 48105 , United States
| | - Kanokwan Sansanaphongpricha
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Jinhui Liao
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Hayley J Paholak
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Nicholas O Stevers
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Guoping Wang
- IMRA America, Inc. , 1044 Woodridge Avenue , Ann Arbor , Michigan 48105 , United States
| | - Bing Liu
- IMRA America, Inc. , 1044 Woodridge Avenue , Ann Arbor , Michigan 48105 , United States
| | - Duxin Sun
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Michigan , Ann Arbor , Michigan 48109 , United States
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Green synthesized nickel nanoparticles for targeted detection and killing of S. typhimurium. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 174:58-69. [DOI: 10.1016/j.jphotobiol.2017.07.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 07/07/2017] [Accepted: 07/14/2017] [Indexed: 01/15/2023]
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Liu CH, Tsao MH, Sahoo SL, Wu WC. Magnetic nanoparticles with fluorescence and affinity for DNA sensing and nucleus staining. RSC Adv 2017. [DOI: 10.1039/c6ra25610d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The fluorescence magnetic nanoparticles offer versatile platforms for nucleus imaging and DNA adsorption.
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Affiliation(s)
- Chi-Hsien Liu
- Graduate Institute of Biochemical and Biomedical Engineering
- Chang Gung University
- Tao-Yuan 333
- Taiwan
- Graduate Institute of Health Industry Technology
| | - Min-Han Tsao
- Graduate Institute of Biochemical and Biomedical Engineering
- Chang Gung University
- Tao-Yuan 333
- Taiwan
| | - Soubhagya Laxmi Sahoo
- Graduate Institute of Biochemical and Biomedical Engineering
- Chang Gung University
- Tao-Yuan 333
- Taiwan
| | - Wei-Chi Wu
- Department of Ophthalmology
- Chang Gung Memorial Hospital
- Taoyuan
- Taiwan
- College of Medicine
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Ansari L, Malaekeh-Nikouei B. Magnetic silica nanocomposites for magnetic hyperthermia applications. Int J Hyperthermia 2016; 33:354-363. [DOI: 10.1080/02656736.2016.1243736] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Legha Ansari
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bizhan Malaekeh-Nikouei
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Bloemen M, Vanpraet L, Ceulemans M, Parac-Vogt TN, Clays K, Geukens N, Gils A, Verbiest T. Selective protein purification by PEG–IDA-functionalized iron oxide nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra11614g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new heterobifunctional PEG ligand was developed for efficient magnetic purification of His-tagged proteins.
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Affiliation(s)
- M. Bloemen
- KU Leuven
- Department of Chemistry
- 3001 Heverlee
- Belgium
| | - L. Vanpraet
- KU Leuven
- Department of Chemistry
- 3001 Heverlee
- Belgium
| | - M. Ceulemans
- KU Leuven
- Department of Chemistry
- 3001 Heverlee
- Belgium
| | | | - K. Clays
- KU Leuven
- Department of Chemistry
- 3001 Heverlee
- Belgium
| | - N. Geukens
- PharmAbs
- The KU Leuven Antibody Center
- KU Leuven
- 3000 Leuven
- Belgium
| | - A. Gils
- KU Leuven
- Department of Pharmaceutical and Pharmacological Sciences
- 3000 Leuven
- Belgium
| | - T. Verbiest
- KU Leuven
- Department of Chemistry
- 3001 Heverlee
- Belgium
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