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Li L, Li M, Qiu Y, Dong Y. A sensitive CRISPR/Cas12a-assisted fluorescent aptasensor for rapid detection of food allergens. Int J Biol Macromol 2024; 274:133444. [PMID: 38936584 DOI: 10.1016/j.ijbiomac.2024.133444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024]
Abstract
Food allergens elicit abnormal immune system responses among allergic individuals and sensitive detection for allergenic ingredient is greatly significant. To address this need, a novel fluorescent aptasensor, assisted by Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR), have been developed for food allergens. In this study, aptamer offers distinctive recognition capabilities in binding specific targets, while CRISPR-associated-12a protein (Cas12a) holds precise cis-cleavage for cutting fluorescent signal probes. Notably, the utilization of Cas12a cis-cleavage activity, rather than trans-cleavage, eliminates the necessity for additional fluorescent probes, thus reducing interference between substances and enhancing sensitivity. Throughout the process, complementary DNA (cDNA) plays a crucial dual role in target recognition conversion and signal presentation, representing a key challenge and innovative aspect of this study. To evaluate the performance of the aptasensor, lysozyme (LYS) is employed as a representative model target of food allergens. Under optimal conditions, the developed aptasensor could achieve an exceptional low limit of detection (LOD) of 6.10 pM with a dynamic detection range of 10 pM-320 pM. The aptasensor demonstrates high selectivity and great recovery rates. This strategy yields promising outcomes, holding the potential to serve as a valuable reference for various food allergens detection.
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Affiliation(s)
- Ling Li
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Menglei Li
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Yinghua Qiu
- Center for Molecular Diagnostics and Precision Medicine, Drexel University College of Medicine, Philadelphia 19102, USA
| | - Yiyang Dong
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China.
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Toma L, Mattarozzi M, Ronda L, Marassi V, Zattoni A, Fortunati S, Giannetto M, Careri M. Are Aptamers Really Promising as Receptors for Analytical Purposes? Insights into Anti-Lysozyme DNA Aptamers through a Multitechnique Study. Anal Chem 2024; 96:2719-2726. [PMID: 38294352 DOI: 10.1021/acs.analchem.3c05883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Aptamers are recognition elements increasingly used for the development of biosensing strategies, especially in the detection of proteins or small molecule targets. Lysozyme, which is recognized as an important biomarker for various diseases and a major allergenic protein found in egg whites, is one of the main analytical targets of aptamer-based biosensors. However, since aptamer-based strategies can be prone to artifacts and data misinterpretation, rigorous strategies for multifaceted characterization of the aptamer-target interaction are needed. In this work, a multitechnique approach has been devised to get further insights into the binding performance of the anti-lysozyme DNA aptamers commonly used in the literature. To study molecular interactions between lysozyme and different anti-lysozyme DNA aptamers, measurements based on a magneto-electrochemical apta-assay, circular dichroism spectroscopy, fluorescence spectroscopy, and asymmetrical flow field-flow fractionation were performed. The reliability and versatility of the approach were proved by investigating a SELEX-selected RNA aptamer reported in the literature, that acts as a positive control. The results confirmed that an interaction in the low micromolar range is present in the investigated binding buffers, and the binding is not associated with a conformational change of either the protein or the DNA aptamer. The similar behavior of the anti-lysozyme DNA aptamers compared to that of randomized sequences and polythymine, used as negative controls, showed nonsequence-specific interactions. This study demonstrates that severe testing of aptamers resulting from SELEX selection is the unique way to push these biorecognition elements toward reliable and reproducible results in the analytical field.
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Affiliation(s)
- Lorenzo Toma
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma 43124, Italy
| | - Monica Mattarozzi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma 43124, Italy
- Interdepartmental Center SITEIA.PARMA, University of Parma, Parma 43124, Italy
| | - Luca Ronda
- Department of Medicine and Surgery, University of Parma, Parma 43124, Italy
- CNR, Institute of Biophysics, Pisa 56124, Italy
| | - Valentina Marassi
- Department of Chemistry, University of Bologna, Via Selmi 2, Bologna 40126, Italy
- byFlow srl, Bologna 40126, Italy
- INBB, National Institute for Biostructures and Biosystems, Rome 00136 , Italy
| | - Andrea Zattoni
- Department of Chemistry, University of Bologna, Via Selmi 2, Bologna 40126, Italy
- byFlow srl, Bologna 40126, Italy
- INBB, National Institute for Biostructures and Biosystems, Rome 00136 , Italy
| | - Simone Fortunati
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma 43124, Italy
- INBB, National Institute for Biostructures and Biosystems, Rome 00136 , Italy
| | - Marco Giannetto
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma 43124, Italy
- Interdepartmental Center SITEIA.PARMA, University of Parma, Parma 43124, Italy
- INBB, National Institute for Biostructures and Biosystems, Rome 00136 , Italy
| | - Maria Careri
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma 43124, Italy
- Interdepartmental Center SITEIA.PARMA, University of Parma, Parma 43124, Italy
- INBB, National Institute for Biostructures and Biosystems, Rome 00136 , Italy
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Sanjanwala D, Londhe V, Trivedi R, Bonde S, Sawarkar S, Kale V, Patravale V. Polysaccharide-based hydrogels for medical devices, implants and tissue engineering: A review. Int J Biol Macromol 2024; 256:128488. [PMID: 38043653 DOI: 10.1016/j.ijbiomac.2023.128488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 11/10/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
Hydrogels are highly biocompatible biomaterials composed of crosslinked three-dimensional networks of hydrophilic polymers. Owing to their natural origin, polysaccharide-based hydrogels (PBHs) possess low toxicity, high biocompatibility and demonstrate in vivo biodegradability, making them great candidates for use in various biomedical devices, implants, and tissue engineering. In addition, many polysaccharides also show additional biological activities such as antimicrobial, anticoagulant, antioxidant, immunomodulatory, hemostatic, and anti-inflammatory, which can provide additional therapeutic benefits. The porous nature of PBHs allows for the immobilization of antibodies, aptamers, enzymes and other molecules on their surface, or within their matrix, potentiating their use in biosensor devices. Specific polysaccharides can be used to produce transparent hydrogels, which have been used widely to fabricate ocular implants. The ability of PBHs to encapsulate drugs and other actives has been utilized for making neural implants and coatings for cardiovascular devices (stents, pacemakers and venous catheters) and urinary catheters. Their high water-absorption capacity has been exploited to make superabsorbent diapers and sanitary napkins. The barrier property and mechanical strength of PBHs has been used to develop gels and films as anti-adhesive formulations for the prevention of post-operative adhesion. Finally, by virtue of their ability to mimic various body tissues, they have been explored as scaffolds and bio-inks for tissue engineering of a wide variety of organs. These applications have been described in detail, in this review.
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Affiliation(s)
- Dhruv Sanjanwala
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga (E), Mumbai 400019, Maharashtra, India; Department of Pharmaceutical Sciences, College of Pharmacy, 428 Church Street, University of Michigan, Ann Arbor, MI 48109, United States.
| | - Vaishali Londhe
- SVKM's NMIMS, Shobhaben Pratapbhai College of Pharmacy and Technology Management, V.L. Mehta Road, Vile Parle (W), Mumbai 400056, Maharashtra, India
| | - Rashmi Trivedi
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur 441002, Maharashtra, India
| | - Smita Bonde
- SVKM's NMIMS, School of Pharmacy and Technology Management, Shirpur Campus, Maharashtra, India
| | - Sujata Sawarkar
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Mumbai 400056, Maharashtra, India
| | - Vinita Kale
- Department of Pharmaceutics, Gurunanak College of Pharmacy, Kamptee Road, Nagpur 440026, Maharashtra, India
| | - Vandana Patravale
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga (E), Mumbai 400019, Maharashtra, India.
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Yan F, Wang X, Wang Y, Yi C, Xu M, Xu J. Sensing performance and mechanism of carbon dots encapsulated into metal-organic frameworks. Mikrochim Acta 2022; 189:379. [PMID: 36087187 DOI: 10.1007/s00604-022-05481-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/27/2022] [Indexed: 01/28/2023]
Abstract
Metal-organic frameworks (MOFs) can be combined with nanomaterials and the combined composites have excellent optical properties. Carbon dots (CDs) with tiny particle size, non-toxic and rich surface functional groups are novel fluorescent materials. Carbon dots@metal-organic frameworks (CDs@MOFs) are synthesized by encapsulating CDs into MOFs. CDs@MOFs are promising composites for the preparation of a new generation of fluorescence sensors, which combine the hybrid properties of MOFs and the special optical properties of CDs. Urged as such, we are encouraged to categorize according to the sensing mechanisms. These include fluorescence resonance energy transfer (FRET), aggregation-caused quenching (ACQ), static quenching, dynamic quenching, photo-induced electron transfer (PET), inner filter effect (IFE) and so on. Based on the above mechanisms, CDs@MOFs can specifically interact with target analytes to generate fluorescence quenching. This review covers the research progress of CDs@MOFs in recent five years (with 103 refs), synthetic design of CDs@MOFs and introduces the sensing mechanism. The current challenges and future research directions are discussed briefly. The sensing mechanism and applications of CDs@MOFs.
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Affiliation(s)
- Fanyong Yan
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China.
| | - Xiule Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Yao Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Chunhui Yi
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Ming Xu
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemistry, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Jinxia Xu
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research On Separation Membranes, School of Chemistry, Tiangong University, Tianjin, 300387, People's Republic of China
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Bayramoglu G, Kilic M, Yakup Arica M. Selective isolation and sensitive detection of lysozyme using aptamer based magnetic adsorbent and a new quartz crystal microbalance system. Food Chem 2022; 382:132353. [PMID: 35152024 DOI: 10.1016/j.foodchem.2022.132353] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 01/07/2022] [Accepted: 02/02/2022] [Indexed: 11/27/2022]
Abstract
Magnetic chitosan beads and quartz crystal microbalance chip were decorated with lysozyme specific aptamer for isolation and detection of lysozyme, respectively. The lysozyme specific aptamer was immobilized on poly (dopamine) coated magnetic chitosan beads and the chip via Schiff base reaction. The percentage of the removal efficiency and purity of the isolated lysozyme from egg white were 87.6% and 91.8%, respectively. Further, the sensor system was contacted with different concentrations of lysozyme and other test proteins. This sensor system provided a method for the label-free, concentration-dependent, and selective detection of lysozyme with an observed detection limit of 17.9 ± 0.6 ng/mL. The sensor system was very selective and not significantly responded to the other tested proteins such as ovalbumin, trypsin, cytochrome C, and glucose oxidase. The prepared new sensor system showed a good durability and a high sensitivity for determination of lysozyme from solutions and whole egg white.
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Affiliation(s)
- Gulay Bayramoglu
- Biochemical Processing and Biomaterial Research Laboratory, Gazi University, 06500 Teknikokullar, Ankara, Turkey; Department of Chemistry, Faculty of Sciences, Gazi University, 06500 Teknikokullar, Ankara, Turkey.
| | - Murat Kilic
- Department of Chemistry, Faculty of Sciences, Gazi University, 06500 Teknikokullar, Ankara, Turkey
| | - M Yakup Arica
- Department of Chemistry, Faculty of Sciences, Gazi University, 06500 Teknikokullar, Ankara, Turkey
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Liu R, Zhang F, Sang Y, Katouzian I, Jafari SM, Wang X, Li W, Wang J, Mohammadi Z. Screening, identification, and application of nucleic acid aptamers applied in food safety biosensing. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.03.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Zong C, Wang R, Jiang F, Zhang D, Yang H, Wang J, Lu X, Li F, Li P. Metal enhanced chemiluminescence nanosensor for ultrasensitive bioassay based on silver nanoparticles modified functional DNA dendrimer. Anal Chim Acta 2021; 1165:338541. [PMID: 33975696 DOI: 10.1016/j.aca.2021.338541] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/31/2021] [Accepted: 04/15/2021] [Indexed: 10/21/2022]
Abstract
A novel metal enhanced chemiluminescence (MEC) nanosensor was developed for ultrasensitive biosensing and imaging, based on functional DNA dendrimer (FDD), proximity-dependent DNAzyme and silver nanoparticles (AgNPs). The FDD containing two split G-quadruplex structures was prepared through an enzyme-free and step-by-step assembly strategy, and then reacted with AgNPs and hemin molecules to form the FDD/hemin/AgNPs facilely. Such a MEC nanosensor consisted of three modules: FDD (scaffold), the generated G-quadruplex/hemin DNAzyme (signal reporter) and AgNPs (chemiluminescence enhancer). The MEC effect was achieved by controlling the length of DNA sequences between AgNPs on the periphery of FDD and DNAzymes inside it. Such nanosensor exhibited 9-fold amplification and another 6.4-fold metal enhancement in chemiluminescence intensity, which can be easily applied into trace detection of multiple protein markers using a disposable protein immunoarray. The FDD/hemin/AgNPs-based multiplex MEC imaging assay showed wide linear ranges over 5 orders of magnitude and detection limits down to 5× 10-5 ng L-1 and 1.8 × 10-4 U mL-1 for cardiac troponin T and carcinoma antigen 125, demonstrating a promising potential in application to protein analysis and clinical diagnosis. Moreover, the MEC nanosensor can be effectively delivered into cells with excellent biocompatibility and outstanding stability, offering a new tool for detection of intracellular targets and suggesting wide applications in bioassay.
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Affiliation(s)
- Chen Zong
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Ruike Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Fan Jiang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Duoduo Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Hua Yang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Junhong Wang
- Jiangsu Province Hospital, Nanjing Medical University First Affiliated Hospital, Nanjing, 210029, PR China
| | - Xu Lu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Fei Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China.
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China.
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Morozova S, Sharsheeva A, Morozov M, Vinogradov A, Hey-Hawkins E. Bioresponsive metal–organic frameworks: Rational design and function. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213682] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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