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Chinchilla-Cárdenas DJ, Cruz-Méndez JS, Petano-Duque JM, García RO, Castro LR, Lobo-Castañón MJ, Cancino-Escalante GO. Current developments of SELEX technologies and prospects in the aptamer selection with clinical applications. J Genet Eng Biotechnol 2024; 22:100400. [PMID: 39179327 PMCID: PMC11338109 DOI: 10.1016/j.jgeb.2024.100400] [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: 04/17/2024] [Revised: 06/28/2024] [Accepted: 07/12/2024] [Indexed: 08/26/2024]
Abstract
Aptamers are single-stranded oligonucleotide sequences capable of binding to specific ligands with high affinity. In this manner, they are like antibodies but have advantages such as lower manufacturing costs, lower immunogenicity, fewer batch-to-batch differences, a longer shelf life, high tolerance to different molecular milieus, and a greater number of potential targets. Due to their special features, they have been used in drug delivery, biosensor technology, therapy, and diagnostics. The methodology that allowed its production was the "Systematic Evolution of Ligands by Exponential enrichment" (SELEX). Unfortunately, the traditional protocol is time-consuming and laborious. Therefore, numerous variants with considerable optimization steps have been developed, nonetheless, there are still challenges to achieving real applications in the clinical field. Among them, are control of in vivo activities, fast renal filtration, degradation by nucleases and toxicity testing. This review focuses on current technologies based on SELEX, the critical factors for successful aptamer selection, and its upcoming biomedical and biotechnological applications.
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Affiliation(s)
- Danny Jair Chinchilla-Cárdenas
- Laboratorio de Biología Molecular y Genética Animal Mascolab, Calle 49 Sur # 45ª-300, Oficina 1202, Centro Empresarial S48 Tower, Envigado 055422, Antioquia, Colombia.
| | - Juan Sebastian Cruz-Méndez
- Laboratorio de Biología Molecular y Genética Animal Mascolab, Calle 49 Sur # 45ª-300, Oficina 1202, Centro Empresarial S48 Tower, Envigado 055422, Antioquia, Colombia.
| | - Julieth Michel Petano-Duque
- Laboratorio de Biología Molecular y Genética Animal Mascolab, Calle 49 Sur # 45ª-300, Oficina 1202, Centro Empresarial S48 Tower, Envigado 055422, Antioquia, Colombia; Group of Biosocial Studies of the Body-EBSC, Faculty of Dentistry, Universidad de Antioquia, La Candelaria, Medellín 050010, Antioquia, Colombia.
| | | | - Lyda R Castro
- Grupo de investigación Evolución, Sistemática y Ecología Molecular (GIESEMOL), Universidad del Magdalena, Santa Marta, Colombia.
| | - María Jesús Lobo-Castañón
- Departamento de Química Física y Analítica, Universidad de Oviedo, Av. Julián Clavería 8, 33006 Oviedo, Spain.
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Yang Y, Yu L, Jiang X, Li Y, He X, Chen L, Zhang Y. Recent advances in photonic crystal-based chemical sensors. Chem Commun (Camb) 2024; 60:9177-9193. [PMID: 39099372 DOI: 10.1039/d4cc01503g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/06/2024]
Abstract
The increasing attention towards environmental quality, food safety, public security and medical diagnosis demands high requirements and standards for chemical sensors with merits of rapid response, high precision, long-term stability and reusability. In this case, a prominent innovation in sensory materials holds potential to realize new generations of chemical sensor technologies. Specifically, photonic crystals (PCs) as structured dielectric materials with spatially periodic ordered arrangements offer unique advantages in improving the sensing performance of chemical sensors. Consequently, the promising properties of PCs promote research on their implementation as an integral part of chemical sensors. This review highlights the integration of PCs into chemical sensors including a range of building blocks for the construction of PCs with versatile opal or opal inverse structural architectures and a delicate choice of surface functionality with associated sensing interfaces for target recognition and signal transduction. Subsequently, based on their synthesis and functionality, we focus on introducing the sensing principles of recent advances in PC-based chemical sensors, such as reflection spectra-based sensing, visual colorimetric sensing, fluorescence sensing, surface-enhanced Raman spectroscopy (SERS)-based sensing and other integrated sensing. Finally, the future prospects and challenges are discussed for the further improvement of PC-based chemical sensors.
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Affiliation(s)
- Yi Yang
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China.
| | - Licheng Yu
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China.
| | - Xiaowen Jiang
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China.
| | - Yijun Li
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China.
- National Demonstration Center for Experimental Chemistry Education (Nankai University), Tianjin 300071, China
| | - Xiwen He
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China.
| | - Langxing Chen
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China.
| | - Yukui Zhang
- College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin 300071, China.
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116011, China
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Pan M, Luo Y, Ji L, Chai G, Huang Y, Chen S, Yu A, Fan W, Zhang Y, Zhang S, Ouyang G, Zhao W. Design of magnetic photonic crystal microdroplet for sensitive detection of cationic organic pollutants by the coupled resonance effect. Talanta 2024; 275:126169. [PMID: 38705017 DOI: 10.1016/j.talanta.2024.126169] [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: 02/19/2024] [Revised: 04/15/2024] [Accepted: 04/25/2024] [Indexed: 05/07/2024]
Abstract
Photonic crystals (PCs), periodically arranged nanoparticles, have emerged with extraordinary optical properties for light manipulation owing to their photonic band gaps (PBGs). Here, a novel strategy and method was developed for efficient enrichment and sensitive detection of cationic organic pollutants in water. Size-controlled Fe3O4@poly (4-styrenesulfonic acid-co-maleic acid) (Fe3O4@PSSMA) was prepared, and high surface charge were formed with the coating of PSSMA layer on the surface of Fe3O4, which could be used for adsorption and removal of cationic organic pollutants. The Fe3O4@PSSMA after adsorbing cationic organic pollutant were assembled to magnetic photonic crystal microdroplet (MPCM) structure in an external magnetic field, which was used as surface-enhanced Raman scattering (SERS) substrate. By coupling the magnetically tuned PBGs with Raman laser wavelength, the light utilization efficiency can be improved and the coupled resonance effect was greatly enhanced. The enhancement factor (EF) of MB was more than 800 attributing to the dual function of enrichment and coupled resonance effect of MPCM. The developed analytical strategy is the first time to use MPCM as a SERS substrate to realize the sensitive detection of 10 nmol L-1 MB in real water, which greatly improves the application of MPCM in the field of contaminant analysis and detection in water.
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Affiliation(s)
- Maogeng Pan
- College of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Yake Luo
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Lingbo Ji
- Zhengzhou University Flavour Science Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, PR China
| | - Guobi Chai
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China; Zhengzhou University Flavour Science Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, PR China
| | - Yunhuan Huang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Sheng Chen
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Ajuan Yu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Wu Fan
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China; Zhengzhou University Flavour Science Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, PR China
| | - Yanhao Zhang
- College of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Shusheng Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Gangfeng Ouyang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, PR China
| | - Wuduo Zhao
- College of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR China; College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China; Zhengzhou University Flavour Science Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, PR China.
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Su LH, Qian HL, Yang C, Wang C, Wang Z, Yan XP. Integrating molecular imprinting into flexible covalent organic frameworks for selective recognition and efficient extraction of aflatoxins. JOURNAL OF HAZARDOUS MATERIALS 2024; 467:133755. [PMID: 38359765 DOI: 10.1016/j.jhazmat.2024.133755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/31/2024] [Accepted: 02/06/2024] [Indexed: 02/17/2024]
Abstract
Covalent organic frameworks (COFs) are promising adsorbents for extraction, but their selectivity for molecular recognition remains a challenging issue due to the very limited structural design with rigid structure. Herein, we report an elegant strategy for the design and synthesis of molecularly imprinted flexible COFs (MI-FCOFs) via one-pot reaction between the flexible building block of 2,4,6-tris(4-formylphenoxy)- 1,3,5-triazine and linear 4-phenylenediamine for selective extraction of aflatoxins. The flexible chain structure enabled the developed MI-FCOF to adjust the shape and conformation of frameworks to suit the template molecule, giving high selectivity for aflatoxins recognition. Moreover, MI-FCOF with abundant imprinted sites and function groups exhibited an exceptional adsorption capacity of 258.4 mg g-1 for dummy template which is 3 times that of no-imprinted FCOF (NI-FCOF). Coupling MI-FCOF based solid-phase extraction with high-performance liquid chromatography gave low detection limits of 0.003-0.09 ng mL-1 and good precision with relative standard deviations ≤ 6.7% for the determination of aflatoxins. Recoveries for the spiked rice, corn, wheat and peanut samples were in the range of 85.4%- 105.4%. The high selectivity of the developed MI-FCOF allows matrix-free determination of AFTs in food samples. This work offers a new way to the design of MI-FCOF for selective molecular recognition.
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Affiliation(s)
- Li-Hong Su
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Hai-Long Qian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Cheng Yang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Chuanxi Wang
- Institute of Environmental Processes and Pollution control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Zhenyu Wang
- Institute of Environmental Processes and Pollution control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Xiu-Ping Yan
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi 214122, China.
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