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Xu Y, Jia X, Yang S, Cao M, He B, Ren W, Suo Z. Simultaneous Determination of Aflatoxin B1 and Ochratoxin A in Cereals by a Novel Electrochemical Aptasensor Using Metal-Organic Framework as Signal Carrier. Foods 2024; 13:2177. [PMID: 39063260 PMCID: PMC11276064 DOI: 10.3390/foods13142177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 07/05/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
A novel electrochemical aptasensor was prepared for the simultaneous determination of aflatoxin B1 (AFB1) and ochratoxin A (OTA). Composites of Au nanoparticles and polyethyleneimine-reduced graphene oxide (AuNPs/PEI-RGO) with good electrical conductivity and high specific surface area were employed as the supporting substrate, demonstrating the ability to provide more binding sites for aptamers and accelerate the electron transfer. Aptamers were immobilized on a AuNPs/PEI-RGO surface to specifically recognize AFB1 and OTA. A metal-organic framework of UiO-66-NH2 served as the signal carrier to load metal ions of Cu2+ and Pb2+, which facilitated the generation of independent current peaks and effectively improved the electrochemical signals. The prepared aptasensor exhibited sensitive current responses for AFB1 and OTA with a linear range of 0.01 to 1000 ng/mL, with detection limits of 6.2 ng/L for AFB1 and 3.7 ng/L for OTA, respectively. The aptasensor was applied to detect AFB1 and OTA in cereal samples, achieving results comparable with HPLC-MS, with recovery results from 92.5% to 104.1%. With these merits of high sensitivity and good selectivity and stability, the prepared aptasensor proved to be a powerful tool for evaluating contaminated cereals.
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Affiliation(s)
- Yiwei Xu
- School of Food Science and Technology, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; (X.J.); (M.C.); (W.R.); (Z.S.)
| | - Xupeng Jia
- School of Food Science and Technology, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; (X.J.); (M.C.); (W.R.); (Z.S.)
| | - Sennan Yang
- Henan Institute of Food and Salt Industry Inspection Technology, Zhengzhou 450003, China
| | - Mengrui Cao
- School of Food Science and Technology, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; (X.J.); (M.C.); (W.R.); (Z.S.)
| | - Baoshan He
- School of Food Science and Technology, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; (X.J.); (M.C.); (W.R.); (Z.S.)
| | - Wenjie Ren
- School of Food Science and Technology, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; (X.J.); (M.C.); (W.R.); (Z.S.)
| | - Zhiguang Suo
- School of Food Science and Technology, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; (X.J.); (M.C.); (W.R.); (Z.S.)
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Çiçek Özkul SL, Kaba İ, Ozdemir Olgun FA. Unravelling the potential of magnetic nanoparticles: a comprehensive review of design and applications in analytical chemistry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3620-3640. [PMID: 38814019 DOI: 10.1039/d4ay00206g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
The study of nanoparticles has emerged as a prominent research field, offering a wide range of applications across various disciplines. With their unique physical and chemical properties within the size range of 1-100 nm, nanoparticles have garnered significant attention. Among them, magnetic nanoparticles (MNPs) exemplify promising super-magnetic characteristics, especially in the 10-20 nm size range, making them ideal for swift responses to applied magnetic fields. In this comprehensive review, we focus on MNPs suitable for analytical purposes. We investigate and classify them based on their analytical applications, synthesis routes, and overall utility, providing a detailed literature summary. By exploring a diverse range of MNPs, this review offers valuable insights into their potential application in various analytical scenarios.
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Affiliation(s)
- Serra Lale Çiçek Özkul
- Istanbul Technical University, Faculty of Science and Letters, Department of Chemistry, Maslak Campus, Sariyer, Istanbul, Turkey
| | - İbrahim Kaba
- Marmara University, Faculty of Engineering, Department of Chemical Engineering, Maltepe, Istanbul, Turkey
| | - Fatos Ayca Ozdemir Olgun
- Istanbul Health and Technology University, Faculty of Engineering and Natural Sciences, Department of Chemical Engineering, Sutluce, Beyoglu, Istanbul, Turkey.
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Shafiei N, Mahmoodzadeh Hosseini H, Amani J, Mirhosseini SA, Jafary H. Screening and identification of DNA nucleic acid aptamers against F1 protein of Yersinia pestis using SELEX method. Mol Biol Rep 2024; 51:722. [PMID: 38829419 DOI: 10.1007/s11033-024-09561-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 04/16/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND Yersinia pestis is a bacterium that causes the disease plague. It has caused the deaths of many people throughout history. The bacterium possesses several virulence factors (pPla, pFra, and PYV). PFra plasmid encodes fraction 1 (F1) capsular antigen. F1 protein protects the bacterium against host immune cells through phagocytosis process. This protein is specific for Y. pestis. Many diagnostic techniques are based on molecular and serological detection and quantification of F1 protein in different food and clinical samples. Aptamers are small nucleic acid sequences that can act as specific ligands for many targets.This study, aimed to isolate the high-affinity ssDNA aptamers against F1 protein. METHODS AND RESULTS In this study, SELEX was used as the main strategy in screening aptamers. Moreover, enzyme-linked aptamer sorbent assay (ELASA) and surface plasmon resonance (SPR) were used to determine the affinity and specificity of obtained aptamers to F1 protein. The analysis showed that among the obtained aptamers, the three aptamers of Yer 21, Yer 24, and Yer 25 were selected with a KD value of 1.344E - 7, 2.004E - 8, and 1.68E - 8 M, respectively. The limit of detection (LoD) was found to be 0.05, 0.076, and 0.033 μg/ml for Yer 21, Yer 24, and Yer 25, respectively. CONCLUSION This study demonstrated that the synthesized aptamers could serve as effective tools for detecting and analyzing the F1 protein, indicating their potential value in future diagnostic applications.
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Affiliation(s)
- Nafiseh Shafiei
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hamideh Mahmoodzadeh Hosseini
- Applied Microbiology Research Center, Biomedicine Technologies Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Jafar Amani
- Applied Microbiology Research Center, Biomedicine Technologies Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Seyed Ali Mirhosseini
- Applied Microbiology Research Center, Biomedicine Technologies Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hanieh Jafary
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Wang L, Yao L, Ma Q, Mao Y, Qu H, Zheng L. Investigation on small molecule-aptamer dissociation equilibria based on antisense displacement probe. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Shafiei N, Mahmoodzadeh Hosseini H, Amani J, Mirhosseini SA, Jafary H. Screening and Identification of DNA Nanostructure Aptamer Using the SELEX Method for Detection of Epsilon Toxin. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2023; 22:e140505. [PMID: 38444705 PMCID: PMC10912870 DOI: 10.5812/ijpr-140505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 03/07/2024]
Abstract
Background Epsilon toxin (ETX), produced by Clostridium perfringens, is one of the most potent toxins known, with a lethal potency approaching that of botulinum neurotoxins. Epsilon toxin is responsible for enteritis. Therefore, the development of rapid and simple methods to detect ETX is imperative. Aptamers are single-stranded oligonucleotides that can bind tightly to specific target molecules with an affinity comparable to that of monoclonal antibodies (mAbs). DNA aptamers can serve as tools for the molecular identification of organisms, such as pathogen subspecies. Objectives This study aimed to isolate high-affinity single-stranded DNA (ssDNA) aptamers against ETX. Methods This study identified aptamers using the Systematic Evolution of Ligands by Exponential Enrichment (SELEX) method, enzyme-linked apta-sorbent assay (ELASA), and surface plasmon resonance (SPR) to determine the affinity and specificity of the newly obtained aptamers targeting ETX. Results Several aptamers obtained through the SELEX process were studied. Among them, 2 aptamers, ETX clone 3 (ETX3; dissociation constant (Kd = 8.4 ± 2.4E-9M) and ETX11 (Kd = 6.3 ± 1.3E-9M) had favorable specificity for ETX. The limits of detection were 0.21 and 0.08 μg/mL for ETX3 and ETX11, respectively.. Conclusions The discovered aptamers can be used in various aptamer-based rapid diagnostic tests for the detection of ETX.
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Affiliation(s)
- Nafiseh Shafiei
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hamideh Mahmoodzadeh Hosseini
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Seyed Ali Mirhosseini
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hanieh Jafary
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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He K, Yang J, Shi Q, Guan L, Sun L, Chen Z, Feng J, Dong S. Fluorescent aptamer-modified mesoporous silica nanoparticles for quantitative acetamiprid detection. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:88182-88192. [PMID: 35831655 DOI: 10.1007/s11356-022-21970-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Acetamiprid (ACE) is widely used to control aphids, brown planthoppers, and other pests in agricultural production. However, ACE is difficult to degrade in the environment, resulting in excessive residue, which causes acute and chronic toxicity to human beings and non-target organisms. Therefore, the development of a rapid, convenient, and highly sensitive method to quantify ACE is essential. In this study, aminated mesoporous silica nanoparticles (MSNs-NH2) were synthesized by one-pot method, and 6-carboxyl fluorescein modified aptamers (FAM-Apt) of ACE were adsorbed on the surface of MSNs-NH2 by electrostatic interaction. Finally, a simple and sensitive fluorescence analysis method for the rapid detection of ACE was established. In the absence of ACE, the negatively charged FAM-Apt was electrostatically bound to the positively charged MSNs-NH2, followed by centrifugation to precipitate MSNs-NH2@FAM-Apt, and no fluorescent signal was detected in the supernatant. In the presence of ACE, the specific combination of FAM-Apt with ACE was greater than its electrostatic interaction with MSNs-NH2, so that FAM-Apt was separated from MSNs-NH2, and the supernatant had strong fluorescence signal after centrifugation. For ACE detection, the linear concentration range was 50-1100 ng/mL, and the detection limit (LOD) was 30.26 ng/mL. The method exhibited high sensitivity, selectivity and reproducibility, which is suitable for practical sample analysis and provides guidance for rapid detection of pesticide residues.
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Affiliation(s)
- Kangli He
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Jinghan Yang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Qiuyun Shi
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Lingjun Guan
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Li Sun
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Zhiyang Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Jianguo Feng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Sa Dong
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China.
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Xu L, El-Aty AA, Eun JB, Shim JH, Zhao J, Lei X, Gao S, She Y, Jin F, Wang J, Jin M, Hammock BD. Recent Advances in Rapid Detection Techniques for Pesticide Residue: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:13093-13117. [PMID: 36210513 PMCID: PMC10584040 DOI: 10.1021/acs.jafc.2c05284] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
As an important chemical pollutant affecting the safety of agricultural products, the on-site and efficient detection of pesticide residues has become a global trend and hotspot in research. These methodologies were developed for simplicity, high sensitivity, and multiresidue detection. This review introduces the currently available technologies based on electrochemistry, optical analysis, biotechnology, and some innovative and novel technologies for the rapid detection of pesticide residues, focusing on the characteristics, research status, and application of the most innovative and novel technologies in the past 10 years, and analyzes challenges and future development prospects. The current review could be a good reference for researchers to choose the appropriate research direction in pesticide residue detection.
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Affiliation(s)
- Lingyuan Xu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - A.M. Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum 25240, Turkey
| | - Jong-Bang Eun
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Jae-Han Shim
- Natural Products Chemistry Laboratory, Biotechnology Research Institute, Chonnam National University, Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Jing Zhao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xingmei Lei
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Song Gao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yongxin She
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Fen Jin
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Maojun Jin
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Bruce D. Hammock
- Department of Entomology & Nematology and the UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA
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Mohamad N, Azizan NI, Mokhtar NFK, Mustafa S, Mohd Desa MN, Hashim AM. Future perspectives on aptamer for application in food authentication. Anal Biochem 2022; 656:114861. [PMID: 35985482 DOI: 10.1016/j.ab.2022.114861] [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: 02/23/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/17/2022]
Abstract
Food fraudulence and food contamination are major concerns, particularly among consumers with specific dietary, cultural, lifestyle, and religious requirements. Current food authentication methods have several drawbacks and limitations, necessitating the development of a simpler, more sensitive, and rapid detection approach for food screening analysis, such as an aptamer-based biosensor system. Although the use of aptamer is growing in various fields, aptamer applications for food authentication are still lacking. In this review, we discuss the limitations of existing food authentication technologies and describe the applications of aptamer in food analyses. We also project several potential targets or marker molecules to be targeted in the SELEX process. Finally, this review highlights the drawbacks of current aptamer technologies and outlines the potential route of aptamer selection and applications for successful food authentication. This review provides an overview of the use of aptamer in food research and its potential application as a molecular reporter for rapid detection in food authentication process. Developing databases to store all biochemical profiles of food and applying machine learning algorithms against the biochemical profiles are urged to accelerate the identification of more reliable biomarker molecules as aptamer targets for food authentication.
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Affiliation(s)
- Nornazliya Mohamad
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Nur Inani Azizan
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Nur Fadhilah Khairil Mokhtar
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Shuhaimi Mustafa
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Mohd Nasir Mohd Desa
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Faculty of Medicine and Health Science, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
| | - Amalia Mohd Hashim
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
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Jinadasa KK, Peña-Vázquez E, Bermejo-Barrera P, Moreda-Piñeiro A. Smart materials for mercury and arsenic determination in food and beverages. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107472] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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10
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Banu K, Mondal B, Rai B, Monica N, Hanumegowda R. Prospects for the application of aptamer based assay platforms in pathogen detection. Biocybern Biomed Eng 2022. [DOI: 10.1016/j.bbe.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Liu M, Yue F, Kong Q, Liu Z, Guo Y, Sun X. Aptamers against Pathogenic Bacteria: Selection Strategies and Apta-assay/Aptasensor Application for Food Safety. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:5477-5498. [PMID: 35471004 DOI: 10.1021/acs.jafc.2c01547] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Pathogenic bacteria are primarily kinds of detrimental agents that cause mankind illness via contaminated food with traits of multiple types, universality, and low content. In view of the detection demands for rapidity, aptamer recognition factors emerged as a substitution for antibodies, which are short single strands of nucleic acid selected via in vitro. They display certain superiorities over antibodies, such as preferable stability, liable modification, and cost-efficiency. Taking advantage of the situation, numerous aptamers against pathogenic bacteria have been successfully selected and applied, yet there are still restrictions on commercial availability. In this review, the strategies/approaches to key sections in pathogen aptamers SELEX and post-SELEX are summarized and sorted out. Recently, optical, electrochemical, and piezoelectric aptamer-based assays or sensors dedicated to pathogen detection have been critically reviewed. Ultimately, the existing challenges and future trends in this field are proposed to further promote development prospects.
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Affiliation(s)
- Mengyue Liu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
| | - Fengling Yue
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
| | - Qianqian Kong
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
| | - Zhanli Liu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
| | - Yemin Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
| | - Xia Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
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Bruno JG. Syringe filter-based DNA aptamer-enzyme-linked colorimetric assay of Salmonella on lettuce. J Microbiol Methods 2022; 193:106406. [PMID: 34999147 DOI: 10.1016/j.mimet.2022.106406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/17/2021] [Accepted: 01/03/2022] [Indexed: 12/27/2022]
Abstract
A simpler visible colorimetric and less expensive syringe enzymatic filter-based assay (SEFA) utilizing proven anti-Salmonella DNA aptamers is described which is based on a similar previously published fluorometric version of SEFA with larger filter units. The colorimetric SEFA is applied to detection of Salmonella enterica on lettuce with detection limits of less than 1000 cfu per sample. The assay is facile, rapid, inexpensive and provides sensitive presumptive detection of S. enterica serovar Typhimurium from the surface of lettuce leaves proximal to agricultural fields.
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Affiliation(s)
- John G Bruno
- Nanohmics Inc., 6201 E. Oltorf Street, Suite 400, Austin, TX 78741, USA.
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Schilling-Loeffler K, Rodriguez R, Williams-Woods J. Target Affinity and Structural Analysis for a Selection of Norovirus Aptamers. Int J Mol Sci 2021; 22:ijms22168868. [PMID: 34445583 PMCID: PMC8396345 DOI: 10.3390/ijms22168868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/05/2021] [Accepted: 08/11/2021] [Indexed: 11/30/2022] Open
Abstract
Aptamers, single-stranded oligonucleotides that specifically bind a molecule with high affinity, are used as ligands in analytical and therapeutic applications. For the foodborne pathogen norovirus, multiple aptamers exist but have not been thoroughly characterized. Consequently, there is little research on aptamer-mediated assay development. This study characterized seven previously described norovirus aptamers for target affinity, structure, and potential use in extraction and detection assays. Norovirus-aptamer affinities were determined by filter retention assays using norovirus genotype (G) I.1, GI.7, GII.3, GII.4 New Orleans and GII.4 Sydney virus-like particles. Of the seven aptamers characterized, equilibrium dissociation constants for GI.7, GII.3, GII.4 New Orleans and GII.4 Sydney ranged from 71 ± 38 to 1777 ± 1021 nM. Four aptamers exhibited affinity to norovirus GII.4 strains; three aptamers additionally exhibited affinity toward GII.3 and GI.7. Aptamer affinity towards GI.1 was not observed. Aptamer structure analysis by circular dichroism (CD) spectroscopy showed that six aptamers exhibit B-DNA structure, and one aptamer displays parallel/antiparallel G-quadruplex hybrid structure. CD studies also showed that biotinylated aptamer structures were unchanged from non-biotinylated aptamers. Finally, norovirus aptamer assay feasibility was demonstrated in dot-blot and pull-down assays. This characterization of existing aptamers provides a knowledge base for future aptamer-based norovirus detection and extraction assay development and aptamer modification.
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Jing L, Qin M, Zhang X, Song Y, Zhang J, Xia X, Gao K, Han Q. A novel borax-specific ssDNA aptamer screened by high-throughput SELEX and its colorimetric assay with aggregation of AuNPs. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2021.103947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Niederlender S, Fontaine JJ, Karadjian G. Potential applications of aptamers in veterinary science. Vet Res 2021; 52:79. [PMID: 34078451 PMCID: PMC8172000 DOI: 10.1186/s13567-021-00948-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 04/23/2021] [Indexed: 02/07/2023] Open
Abstract
Aptamers are small nucleic acids that fold in a three-dimensional conformation allowing them to bind specifically to a target. This target can be an organic molecule, free or carried in cells or tissues, or inorganic components, such as metal ions. Analogous to monoclonal antibodies, aptamers however have certain advantages over the latter: e.g., high specificity for their target, no to low immunogenicity and easy in vitro selection. Since their discovery more than 30 years ago, aptamers have led to various applications, although mainly restricted to basic research. This work reviews the applications of aptamers in veterinary science to date. First, we present aptamers, how they are selected and their properties, then we give examples of applications in food and environmental safety, as well as in diagnosis and medical treatment in the field of veterinary medicine. Because examples of applications in veterinary medicine are scarce, we explore the potential avenues for future applications based on discoveries made in human medicine. Aptamers may offer new possibilities for veterinarians to diagnose certain diseases—particularly infectious diseases—more rapidly or “at the patient’s bedside”. All the examples highlight the growing interest in aptamers and the premises of a potential market. Aptamers may benefit animals as well as their owners, breeders and even public health in a “One Health” approach.
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Affiliation(s)
- Solène Niederlender
- École Nationale Vétérinaire d'Alfort, Université Paris-Est Sup, 7 avenue du Général de Gaulle, 94700, Maisons-Alfort, France
| | - Jean-Jacques Fontaine
- UMR BIPAR 956, ANSES, INRAE, École Nationale Vétérinaire d'Alfort, Université Paris-Est Sup, 7 avenue du Général de Gaulle, 94700, Maisons-Alfort, France
| | - Grégory Karadjian
- UMR BIPAR, Laboratoire de Santé Animale, ANSES, INRAE, École Nationale Vétérinaire d'Alfort, Université Paris-Est Sup, 94700, Maisons-Alfort, France.
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Akgönüllü S, Armutcu C, Denizli A. Molecularly imprinted polymer film based plasmonic sensors for detection of ochratoxin A in dried fig. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03699-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Modified aptamers as reagents to characterize recombinant human erythropoietin products. Sci Rep 2020; 10:18593. [PMID: 33122796 PMCID: PMC7596557 DOI: 10.1038/s41598-020-75713-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 10/14/2020] [Indexed: 11/08/2022] Open
Abstract
Reliable and reproducible monitoring of the conformational state of therapeutic protein products remains an unmet technological need. This need is amplified by the increasing number of biosimilars entering the drug development pipeline as many branded biologics are reaching the end of their market exclusivity period. Availability of methods to better characterize protein conformation may improve detection of counterfit and unlicensed therapeutic proteins. In this study, we report the use of a set of modified DNA aptamers with enhanced chemical diversity to probe the conformational state of 12 recombinant human erythropoietin (rHuEPO) therapeutic protein products; one FDA-licensed rHuEPO originator biological product, three rHuEPO products that are approved for marketing in the US or EU as biosimilars, and eight rHuEPO products that are not approved for marketing in the US or EU. We show that several of these modified aptamers are able to distinguish rHuEPO reference products or approved biosimilars from non-licensed rHuEPO products on the basis of differences in binding kinetics and equilibrium affinity constants. These reagents exhibit sensitivity to the conformational integrity of various forms of rHuEPO and as such represent powerful, simple-to-use analytical tools to monitor the conformational integrity of therapeutic-proteins during manufacture and to screen for and identify both substandard and counterfeit products.
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Schmitz FRW, Valério A, de Oliveira D, Hotza D. An overview and future prospects on aptamers for food safety. Appl Microbiol Biotechnol 2020; 104:6929-6939. [PMID: 32588103 PMCID: PMC7315907 DOI: 10.1007/s00253-020-10747-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/10/2020] [Accepted: 06/16/2020] [Indexed: 02/07/2023]
Abstract
Introduction Many bacteria are responsible for infections in humans and plants, being found in vegetables, water, and medical devices. Most bacterial detection methods are time-consuming and take days to give the result. Aptamers are a promising alternative for a quick and reliable measurement technique to detect bacteria present in food products. Selected aptamers are DNA or RNA oligonucleotides that can bind with bacteria or other molecules with affinity and specificity for the target cells by the SELEX or cell-SELEX technique. This method is based on some rounds to remove the non-ligand oligonucleotides, leaving the aptamers specific to bind to the selected bacteria. Compared with conventional methodologies, the detection approach using aptamers is a rapid, low-cost form of analysis. Objective This review summarizes obtention methods and applications of aptamers in the food industry and biotechnology. Besides, different techniques with aptamers are presented, which enable more effective target detection. Conclusion Applications of aptamers as biosensors, or the association of aptamers with nanomaterials, may be employed in analyses by colorimetric, fluorescence, or electrical devices. Additionally, more efficient ways of sample preparation are presented, which can support food safety to provide human health, with a low-cost method for contaminant detection.Key points • Aptamers are promising for detecting contaminants outbreaks. • Studies are needed to identify aptamers for different targets. |
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Affiliation(s)
- Fernanda Raquel Wust Schmitz
- Department of Chemical Engineering and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Alexsandra Valério
- Department of Chemical Engineering and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Débora de Oliveira
- Department of Chemical Engineering and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil.
| | - Dachamir Hotza
- Department of Chemical Engineering and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
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Huang Y, Wang C, Huo Q, Song Y, Du G, Wang L, Yang X, Chen X. A time-resolved luminescence aptasensor of ofloxacin based on rolling circle amplification and magnetic separation. Anal Bioanal Chem 2020; 412:4555-4563. [PMID: 32472145 DOI: 10.1007/s00216-020-02708-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 04/16/2020] [Accepted: 05/13/2020] [Indexed: 01/05/2023]
Abstract
A novel sensitive, competitive, and time-resolved luminescence sensor for the detection of ofloxacin (OFL) was developed in this study. The sensor used OFL-specific aptamer as a recognition molecule and rolling circle amplification (RCA) as a signal amplification tool. In this way, the time-resolved luminescence can not only avoid background noise from sample, but also provide robust luminescence for detection. Besides, the separation and enrichment of target veterinary drug can be conducted assisted by magnetic treatment. Under optimal conditions, the logarithmic correlation between the concentration of OFL and the luminescence intensity was found to be linear in the range of 5 × 10-11-5 × 10-8 mol L-1 (R2 = 0.9988), with a detection limit (LOD) of 32.1 pmol L-1. Furthermore, this method was applied to the determination of OFL in chicken and pork samples, exhibiting good recovery (72.5-100%) and repeatability (RSD < 10.0%). These results confirm that this novel established method has good application potential for the detection of OFL in food samples.
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Affiliation(s)
- Yukun Huang
- School of Food and Biological Engineering, Xihua University, Chengdu, 610039, China.
- Key Laboratory of Food Non-Thermal Processing, Engineering Technology Research Center of Food Non-Thermal Processing, Yibin Xihua University Research Institute, Yibin, 644004, China.
| | - Chong Wang
- School of Food and Biological Engineering, Xihua University, Chengdu, 610039, China
| | - Qiuyu Huo
- School of Food and Biological Engineering, Xihua University, Chengdu, 610039, China
| | - Yaning Song
- School of Food and Biological Engineering, Xihua University, Chengdu, 610039, China
| | - Gang Du
- Sichuan Institute for Food and Drug Control, Chengdu, 611731, China
| | - Lijun Wang
- School of Food and Biological Engineering, Xihua University, Chengdu, 610039, China
| | - Xiao Yang
- School of Food and Biological Engineering, Xihua University, Chengdu, 610039, China
| | - Xianggui Chen
- School of Food and Biological Engineering, Xihua University, Chengdu, 610039, China.
- Key Laboratory of Food Non-Thermal Processing, Engineering Technology Research Center of Food Non-Thermal Processing, Yibin Xihua University Research Institute, Yibin, 644004, China.
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Goud KY, Reddy KK, Satyanarayana M, Kummari S, Gobi KV. A review on recent developments in optical and electrochemical aptamer-based assays for mycotoxins using advanced nanomaterials. Mikrochim Acta 2019; 187:29. [PMID: 31813061 DOI: 10.1007/s00604-019-4034-0] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 11/15/2019] [Indexed: 12/12/2022]
Abstract
This review (with 163 refs) covers the recent developments of nanomaterial-based optical and electrochemical sensors for mycotoxins. The review starts with a brief discussion on occurrence, distribution, toxicity of mycotoxins and the legislations in monitoring their levels. It further outlines the research methods, various recognition matrices and the strategies involved in the development of highly sensitive and selective sensor systems. It also points out the salient features and importance of aptasensors in the detection of mycotoxins along with the different immobilization methods of aptamers. The review meticulously discusses the performance of different optical and electrochemical sensors fabricated using aptamers coupled with nanomaterials (CNT, graphene, metal nanoparticles and metal oxide nanoparticles). The review addresses the limitations in the current developments as well as the future challenges involved in the successful construction of aptasensors with the functionalized nanomaterials. Graphical abstract Recent developments in nanomaterial based aptasensors for mycotoxins are summarized. Specifically, the efficiency of the nanomaterial coupled aptasensors (such as CNT, graphene, metal nanoparticles and metal oxide nanoparticles) in optical and electrochemical methods are discussed.
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Affiliation(s)
- K Yugender Goud
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA.
| | - K Koteshwara Reddy
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, 506004, India
| | - M Satyanarayana
- Electrical and Computer Engineering, Iowa State University, Ames, IA, 50011, USA
| | - Shekher Kummari
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, 506004, India
| | - K Vengatajalabathy Gobi
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, 506004, India.
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21
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Faisal M, Vasiljevic T, Donkor ON. A review on methodologies for extraction, identification and quantification of allergenic proteins in prawns. Food Res Int 2019; 121:307-318. [PMID: 31108753 DOI: 10.1016/j.foodres.2019.03.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/13/2019] [Accepted: 03/17/2019] [Indexed: 12/26/2022]
Abstract
Prawn allergy is one of the most common food-borne allergies and current prevention is by avoidance. This review paper summarised different methodologies for the extraction, identification and quantification of prawn protein allergens, reported in various research studies. Following extraction, allergenic components have been analysed using well-established methodologies, such as SDS-PAGE, Immunoblotting, ELISA, CD Spectroscopy, HPLC, DBPCFC, SPT etc. Moreover, the preference towards Aptamer-based technique for allergenicity analysis has also been highlighted in this review paper. The summary of these methodologies will provide a reference platform for present and future research directions.
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Affiliation(s)
- M Faisal
- Advanced Food Systems Research Unit, Institute of Sustainable Industries & Liveable Cities and College of Health and Biomedicine, Victoria University, Werribee Campus, PO Box 14428, Melbourne, Victoria 8001, Australia.
| | - T Vasiljevic
- Advanced Food Systems Research Unit, Institute of Sustainable Industries & Liveable Cities and College of Health and Biomedicine, Victoria University, Werribee Campus, PO Box 14428, Melbourne, Victoria 8001, Australia.
| | - O N Donkor
- Advanced Food Systems Research Unit, Institute of Sustainable Industries & Liveable Cities and College of Health and Biomedicine, Victoria University, Werribee Campus, PO Box 14428, Melbourne, Victoria 8001, Australia.
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23
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Weng R, Lou S, Li L, Zhang Y, Qiu J, Su X, Qian Y, Walter NG. Single-Molecule Kinetic Fingerprinting for the Ultrasensitive Detection of Small Molecules with Aptasensors. Anal Chem 2019; 91:1424-1431. [PMID: 30562003 DOI: 10.1021/acs.analchem.8b04145] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Aptamers have emerged as promising molecular tools for small-molecule analyte sensing. However, the performance of such aptasensors is generally limited by leakage since it has been difficult to completely suppress signal in the absence of analyte, resulting in a compromise between sensitivity and specificity. Here, we describe a methodology for the ultrasensitive detection of analytes combining aptasensors with single-molecule kinetic fingerprinting. A short, fluorescently labeled DNA probe is utilized to detect the structural changes upon ligand binding to the designed hairpin-shaped aptasensor probe. The Poisson statistics of binding and dissociation events of the DNA probe to single surface-immobilized aptasensor molecules is monitored by total internal reflection fluorescence microscopy, permitting the high-accuracy discrimination of the ligand bound and ligand-free states, resulting in zero background. The programmable dynamics of the hairpin enables fine-tuning of the hybridization kinetics of the fluorescent probe, rendering the acquisition time sufficiently flexible to optimize discrimination. Remarkable detection limits are achieved for a diverse set of analytes when spiked into chicken meat extract: the nucleotide adenosine (0.3 pM), the insecticide acetamiprid (0.35 pM), and the dioxin-like toxin PCB-77 (0.72 pM), which is superior to recently reported aptasensors. Our generalizable method significantly improves the performance of aptasensors, with the potential to extend to other molecular biomarkers.
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Affiliation(s)
- Rui Weng
- Key Laboratory of Agro-food Safety and Quality of Ministry of Agriculture and Rural Affairs, Institute of Quality Standards and Testing Technology for Agro-Products , Chinese Academy of Agricultural Sciences , Beijing 100081 , China
| | - Shengting Lou
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Lidan Li
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Yi Zhang
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Jing Qiu
- Key Laboratory of Agro-food Safety and Quality of Ministry of Agriculture and Rural Affairs, Institute of Quality Standards and Testing Technology for Agro-Products , Chinese Academy of Agricultural Sciences , Beijing 100081 , China
| | - Xin Su
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Yongzhong Qian
- Key Laboratory of Agro-food Safety and Quality of Ministry of Agriculture and Rural Affairs, Institute of Quality Standards and Testing Technology for Agro-Products , Chinese Academy of Agricultural Sciences , Beijing 100081 , China
| | - Nils G Walter
- Single Molecule Analysis Group, Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48109 , United States
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24
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Capoferri D, Della Pelle F, Del Carlo M, Compagnone D. Affinity Sensing Strategies for the Detection of Pesticides in Food. Foods 2018; 7:E148. [PMID: 30189666 PMCID: PMC6165126 DOI: 10.3390/foods7090148] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/28/2018] [Accepted: 09/03/2018] [Indexed: 02/07/2023] Open
Abstract
This is a review of recent affinity-based approaches that detect pesticides in food. The importance of the quantification and monitoring of pesticides is firstly discussed, followed by a description of the different approaches reported in the literature. The different sensing approaches are reported according to the different recognition element used: antibodies, aptamers, or molecularly imprinted polymers. Schemes of detection and the main features of the assays are reported and commented upon. The large number of affinity sensors recently developed and tested on real samples demonstrate that this approach is ready to be validated to monitor the amount of pesticides used in food commodities.
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Affiliation(s)
- Denise Capoferri
- Faculty of Biosciences and Technologies for Food, Agriculture and Environment, University of Teramo, via R. Balzarini 1, 64100 Teramo, Italy.
| | - Flavio Della Pelle
- Faculty of Biosciences and Technologies for Food, Agriculture and Environment, University of Teramo, via R. Balzarini 1, 64100 Teramo, Italy.
| | - Michele Del Carlo
- Faculty of Biosciences and Technologies for Food, Agriculture and Environment, University of Teramo, via R. Balzarini 1, 64100 Teramo, Italy.
| | - Dario Compagnone
- Faculty of Biosciences and Technologies for Food, Agriculture and Environment, University of Teramo, via R. Balzarini 1, 64100 Teramo, Italy.
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Nagai H, Tomioka K, Okumura S. Optimal Conditions for the Asymmetric Polymerase Chain Reaction for Detecting Food Pathogenic Bacteria Using a Personal SPR Sensor. Appl Biochem Biotechnol 2018; 187:323-337. [PMID: 29943274 DOI: 10.1007/s12010-018-2819-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 06/10/2018] [Indexed: 12/16/2022]
Abstract
We have been developing quick and simple system for detecting food-poisoning bacteria using a combination of an asymmetric PCR and a portable surface plasmon resonance (SPR) sensor. The system would be suitable for point-of-care detection of food-poisoning bacteria in the field of food industry. In this study, we established a novel method for quantifying the amplified forward (F) and reverse (R) chains of Staphylococcus aureus separately by high-performance liquid chromatography (HPLC). The concentration of single-stranded DNA amplicon excessively amplified, which is crucial for the system, could be calculated as the difference between those of the F- and R-chains. For the R-chain, a correction based on the F-chain concentration in the sample was used to obtain a more accurate value, because the determination of the R-chain concentration was affected by that of the coexisting F-chain. The concentration values were also determined by fluorescence imaging for electrophoresis gels of amplicons with FITC- or Cy5-conjugated primers, and they were in good agreement with the values by the HPLC. The measured concentration of the single-strand F-chain correlated well with the value of the SPR response against the probe that was a complementary sequence of the F-chain, immobilized on the sensor chip of the SPR sensor.
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Affiliation(s)
- Haruka Nagai
- Department of Biochemistry and Applied Chemistry, National Institute of Technology, Kurume College, 1-1-1 Komorino, Kurume, Fukuoka, 830-8555, Japan
| | - Kanji Tomioka
- Department of Biochemistry and Applied Chemistry, National Institute of Technology, Kurume College, 1-1-1 Komorino, Kurume, Fukuoka, 830-8555, Japan
| | - Shiro Okumura
- Biotechnology and Food Research Institute, Fukuoka Industrial Technology Center, 1465-5 Aikawa, Kurume, Fukuoka, 839-0861, Japan.
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26
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Hasan MR, Pulingam T, Appaturi JN, Zifruddin AN, Teh SJ, Lim TW, Ibrahim F, Leo BF, Thong KL. Carbon nanotube-based aptasensor for sensitive electrochemical detection of whole-cell Salmonella. Anal Biochem 2018; 554:34-43. [PMID: 29870692 DOI: 10.1016/j.ab.2018.06.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/01/2018] [Accepted: 06/01/2018] [Indexed: 10/14/2022]
Abstract
In this study, an amino-modified aptasensor using multi-walled carbon nanotubes (MWCNTs)-deposited ITO electrode was prepared and evaluated for the detection of pathogenic Salmonella bacteria. An amino-modified aptamer (ssDNA) which binds selectively to whole-cell Salmonella was immobilised on the COOH-rich MWCNTs to produce the ssDNA/MWCNT/ITO electrode. The morphology of the MWCNT before and after interaction with the aptamers were observed using scanning electron microscopy (SEM). Cyclic voltammetry and electrochemical impedance spectroscopy techniques were used to investigate the electrochemical properties and conductivity of the aptasensor. The results showed that the impedance measured at the ssDNA/MWCNT/ITO electrode surface increased after exposure to Salmonella cells, which indicated successful binding of Salmonella on the aptamer-functionalised surface. The developed ssDNA/MWCNT/ITO aptasensor was stable and maintained linearity when the scan rate was increased from 10 mV s-1 to 90 mV s-1. The detection limit of the ssDNA/MWCNT/ITO aptasensor, determined from the sensitivity analysis, was found to be 5.5 × 101 cfu mL-1 and 6.7 × 101 cfu mL-1 for S. Enteritidis and S. Typhimurium, respectively. The specificity test demonstrated that Salmonella bound specifically to the ssDNA/MWCNT/ITO aptasensor surface, when compared with non-Salmonella spp. The prepared aptasensor was successfully applied for the detection of Salmonella in food samples.
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Affiliation(s)
- Md Rakibul Hasan
- Nanotechnology & Catalysis Research Centre (NANOCAT), Institute of Graduate Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Thiruchelvi Pulingam
- Nanotechnology & Catalysis Research Centre (NANOCAT), Institute of Graduate Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Jimmy Nelson Appaturi
- Nanotechnology & Catalysis Research Centre (NANOCAT), Institute of Graduate Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Anis Nadyra Zifruddin
- Institute of Biological Science, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Swe Jyan Teh
- Centre for Innovation in Medical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Teck Wei Lim
- Institute of Biological Science, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Fatimah Ibrahim
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Bey Fen Leo
- Centre for Innovation in Medical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia; Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Kwai Lin Thong
- Institute of Biological Science, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
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Wang Y, Li J, Qiao P, Jing L, Song Y, Zhang J, Chen Q, Han Q. Screening and Application of a New Aptamer for the Rapid Detection of Sudan Dye III. EUR J LIPID SCI TECH 2018. [DOI: 10.1002/ejlt.201700112] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ying Wang
- Faculty of Life Science and Technology; Engineering Research Center for Molecular Diagnosis; Kunming University of Science and Technology; Kunming 650500 Yunnan P.R. China
| | - Jie Li
- Faculty of Life Science and Technology; Engineering Research Center for Molecular Diagnosis; Kunming University of Science and Technology; Kunming 650500 Yunnan P.R. China
| | - Pu Qiao
- Faculty of Life Science and Technology; Engineering Research Center for Molecular Diagnosis; Kunming University of Science and Technology; Kunming 650500 Yunnan P.R. China
| | - Le Jing
- Faculty of Life Science and Technology; Engineering Research Center for Molecular Diagnosis; Kunming University of Science and Technology; Kunming 650500 Yunnan P.R. China
| | - Yuzhu Song
- Faculty of Life Science and Technology; Engineering Research Center for Molecular Diagnosis; Kunming University of Science and Technology; Kunming 650500 Yunnan P.R. China
| | - Jinyang Zhang
- Faculty of Life Science and Technology; Engineering Research Center for Molecular Diagnosis; Kunming University of Science and Technology; Kunming 650500 Yunnan P.R. China
| | - Qiang Chen
- Faculty of Life Science and Technology; Engineering Research Center for Molecular Diagnosis; Kunming University of Science and Technology; Kunming 650500 Yunnan P.R. China
| | - Qinqin Han
- Faculty of Life Science and Technology; Engineering Research Center for Molecular Diagnosis; Kunming University of Science and Technology; Kunming 650500 Yunnan P.R. China
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Jia J, Yan S, Lai X, Xu Y, Liu T, Xiang Y. Colorimetric Aptasensor for Detection of Malachite Green in Fish Sample Based on RNA and Gold Nanoparticles. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-017-1144-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Dai S, Wu S, Duan N, Chen J, Zheng Z, Wang Z. An ultrasensitive aptasensor for Ochratoxin A using hexagonal core/shell upconversion nanoparticles as luminophores. Biosens Bioelectron 2017; 91:538-544. [PMID: 28086124 DOI: 10.1016/j.bios.2017.01.009] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 01/01/2017] [Accepted: 01/04/2017] [Indexed: 12/19/2022]
Abstract
We developed an ultrasensitive luminescence resonance energy transfer (LRET) aptasensor for Ochratoxin A (OTA) detection, using core/shell upconversion nanoparticles (CS-UCNPs) as luminophores. The OTA aptamer was tagged to CS-UCNPs as energy donor and graphene oxide (GO) acted as energy acceptor. The π-π stacking interaction between the aptamer and GO brought CS-UCNPs and GO in close proximity hence initiated the LRET process resulting in quenching of CS-UCNPs luminescence. A linear calibration was obtained between the luminescence intensity and the logarithm of OTA concentration in the range from 0.001ngmL-1 to 250ngmL-1, with a detection limit of 0.001ngmL-1. The aptasensor showed good specificity towards OTA in beer samples. The ultrahigh sensitivity and pronounced robustness in beer sample matrix suggested promising prospect of the aptasensor inpractical applications.
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Affiliation(s)
- Shaoliang Dai
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Taicang Entry-Exit Inspection and Quarantine Bureau, Suzhou 215400, China
| | - Shijia Wu
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Nuo Duan
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jian Chen
- Taicang Entry-Exit Inspection and Quarantine Bureau, Suzhou 215400, China
| | - Zhigao Zheng
- Taicang Entry-Exit Inspection and Quarantine Bureau, Suzhou 215400, China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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Dai S, Wu S, Duan N, Wang Z. A near-infrared magnetic aptasensor for Ochratoxin A based on near-infrared upconversion nanoparticles and magnetic nanoparticles. Talanta 2016; 158:246-253. [DOI: 10.1016/j.talanta.2016.05.063] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 05/17/2016] [Accepted: 05/24/2016] [Indexed: 01/06/2023]
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Selection of RNA Aptamers Against Botulinum Neurotoxin Type A Light Chain Through a Non-Radioactive Approach. Appl Biochem Biotechnol 2016; 180:10-25. [PMID: 27085355 DOI: 10.1007/s12010-016-2081-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 04/07/2016] [Indexed: 12/15/2022]
Abstract
Botulinum neurotoxin (BoNT), a category A agent, is the most toxic molecule known to mankind. The endopeptidase activity of light chain domain of BoNT is the cause for the inhibition of the neurotransmitter release and the flaccid paralysis that leads to lethality in botulism. Currently, antidotes are not available to reverse the flaccid paralysis caused by BoNT. In the present study, a non-radioactive-based systematic evolution of ligands by exponential enrichment (SELEX) process is developed by utilizing surface plasmon resonance to monitor the binding enrichment. Two RNA aptamers have been identified as strong binders against light chain of botulinum neurotoxin type A. These two aptamers showed strong inhibition activity on LCA, with IC50 in nanomolar range. Inhibition kinetic studies reveal mid nanomolar KI and non-competitive nature of their inhibition, suggesting that they have strong potential as antidotes that can reverse the symptom caused by BoNT/A. More importantly, we observed that the 2'-fluorine-pyrimidine-modified RNA aptamers identified here do not change their binding and biological activities. This observation could lead to a cost-effective way for SELEX, by using regular nucleotide during SELEX, and 2'-fluorine-pyrimidine-modified nucleotide for final application to enhance their RNase-resistance.
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Chang PL, Hsieh MM, Chiu TC. Recent Advances in the Determination of Pesticides in Environmental Samples by Capillary Electrophoresis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:409. [PMID: 27070634 PMCID: PMC4847071 DOI: 10.3390/ijerph13040409] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 03/31/2016] [Accepted: 03/31/2016] [Indexed: 01/10/2023]
Abstract
Nowadays, owing to the increasing population and the attempts to satisfy its needs, pesticides are widely applied to control the quantity and quality of agricultural products. However, the presence of pesticide residues and their metabolites in environmental samples is hazardous to the health of humans and all other living organisms. Thus, monitoring these compounds is extremely important to ensure that only permitted levels of pesticide are consumed. To this end, fast, reliable, and environmentally friendly methods that can accurately analyze dilute, complex samples containing both parent substances and their metabolites are required. Focusing primarily on research published since 2010, this review summarizes the use of various sample pretreatment techniques to extract pesticides from various matrices, combined with on-line preconcentration strategies for sensitivity improvement, and subsequent capillary electrophoresis analysis.
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Affiliation(s)
- Po-Ling Chang
- Department of Chemistry, Tunghai University, Taichung 40704, Taiwan.
| | - Ming-Mu Hsieh
- Department of Chemistry, National Kaohsiung Normal University, 62, Shenjhong Road, Yanchao District, Kaohsiung 82446, Taiwan.
| | - Tai-Chia Chiu
- Department of Applied Science, National Taitung University, 369, Section 2, University Road, Taitung 95092, Taiwan.
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Gijs M, Aerts A, Impens N, Baatout S, Luxen A. Aptamers as radiopharmaceuticals for nuclear imaging and therapy. Nucl Med Biol 2015; 43:253-71. [PMID: 26746572 DOI: 10.1016/j.nucmedbio.2015.09.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 08/24/2015] [Accepted: 09/10/2015] [Indexed: 12/27/2022]
Abstract
Today, radiopharmaceuticals belong to the standard instrumentation of nuclear medicine, both in the context of diagnosis and therapy. The majority of radiopharmaceuticals consist of targeting biomolecules which are designed to interact with a disease-related molecular target. A plethora of targeting biomolecules of radiopharmaceuticals exists, including antibodies, antibody fragments, proteins, peptides and nucleic acids. Nucleic acids have some significant advantages relative to proteinaceous biomolecules in terms of size, production, modifications, possible targets and immunogenicity. In particular, aptamers (non-coding, synthetic, single-stranded DNA or RNA oligonucleotides) are of interest because they can bind a molecular target with high affinity and specificity. At present, few aptamers have been investigated preclinically for imaging and therapeutic applications. In this review, we describe the use of aptamers as targeting biomolecules of radiopharmaceuticals. We also discuss the chemical modifications which are needed to turn aptamers into valuable (radio-)pharmaceuticals, as well as the different radiolabeling strategies that can be used to radiolabel oligonucleotides and, in particular, aptamers.
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Affiliation(s)
- Marlies Gijs
- Radiobiology Unit, Belgian Nuclear Research Centre (SCK·CEN), Mol, Belgium; Cyclotron Research Centre, University of Liège, Liège, Belgium
| | - An Aerts
- Radiobiology Unit, Belgian Nuclear Research Centre (SCK·CEN), Mol, Belgium
| | - Nathalie Impens
- Radiobiology Unit, Belgian Nuclear Research Centre (SCK·CEN), Mol, Belgium
| | - Sarah Baatout
- Radiobiology Unit, Belgian Nuclear Research Centre (SCK·CEN), Mol, Belgium
| | - André Luxen
- Cyclotron Research Centre, University of Liège, Liège, Belgium.
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Zhao J, Katsube S, Yamamoto J, Yamasaki K, Miyagishi M, Iwai S. Analysis of ATP and AMP binding to a DNA aptamer and its imidazole-tethered derivatives by surface plasmon resonance. Analyst 2015. [PMID: 26221631 DOI: 10.1039/c5an01347j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Imidazole was tethered to the C5 position of thymine in an ATP-binding DNA aptamer with two types of linkers, and the affinities of each aptamer for ATP and AMP were determined by surface plasmon resonance measurements. The imidazole-tethered aptamers exhibited higher affinity for ATP, almost independently of the linker structure or the modification site.
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Affiliation(s)
- Jing Zhao
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
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Predicting the Uncertain Future of Aptamer-Based Diagnostics and Therapeutics. Molecules 2015; 20:6866-87. [PMID: 25913927 PMCID: PMC6272696 DOI: 10.3390/molecules20046866] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 04/04/2015] [Accepted: 04/07/2015] [Indexed: 01/07/2023] Open
Abstract
Despite the great promise of nucleic acid aptamers in the areas of diagnostics and therapeutics for their facile in vitro development, lack of immunogenicity and other desirable properties, few truly successful aptamer-based products exist in the clinical or other markets. Core reasons for these commercial deficiencies probably stem from industrial commitment to antibodies including a huge financial investment in humanized monoclonal antibodies and a general ignorance about aptamers and their performance among the research and development community. Given the early failures of some strong commercial efforts to gain government approval and bring aptamer-based products to market, it may seem that aptamers are doomed to take a backseat to antibodies forever. However, the key advantages of aptamers over antibodies coupled with niche market needs that only aptamers can fill and more recent published data still point to a bright commercial future for aptamers in areas such as infectious disease and cancer diagnostics and therapeutics. As more researchers and entrepreneurs become familiar with aptamers, it seems inevitable that aptamers will at least be considered for expanded roles in diagnostics and therapeutics. This review also examines new aptamer modifications and attempts to predict new aptamer applications that could revolutionize biomedical technology in the future and lead to marketed products.
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