1
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Amiri A, Faridbod F, Zoughi S. Selective and Rapid Optical Detection of Citalopram Using a Fluorescent Probe Based on Carbon Quantum Dots Embedded in Silica Molecularly Imprinted Polymer. J Fluoresc 2024; 34:1171-1181. [PMID: 37493859 DOI: 10.1007/s10895-023-03323-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: 05/15/2023] [Accepted: 06/20/2023] [Indexed: 07/27/2023]
Abstract
In this study, a citalopram optical nano-sensor was developed. Citalopram is a well-known antidepressant drug that reduces the reuptake of serotonin in neurons as a result, serotonin neurotransmission, the primary response to antidepressant treatments, increases in many parts of the brain. This study introduces a carbon quantum dots (CQDs)-based optical nanosensor for rapid detection of citalopram. This fluorescent nanosensor was made through the polymerization of tetraethyl orthosilicate in the presence of CQDs as the fluorescent materials and citalopram as the template molecule. Following the polymerization, the templated molecules were washed and removed from the structure, and the matrix of the polymer was left with some cavities that resembled citalopram in terms of size and shape. The final structure which is used as a chemical nanosensor, is named carbon quantum dots embedded silica molecularly imprinted polymer (CQDs-SMIP). The materials used in designing nano-sensors were characterized using FTIR, UV/Vis, and fluorescence spectroscopy, as well as high-resolution transmission electron microscopy (HR-TEM), and field emission scanning electron microscopy (FESEM). CQDs-SMIP showed a strong fluorescence emission at 420 nm in the absence of the template molecule. The fluorescence intensity of the nanosensor decreased in the presence of citalopram. The correlation between the extent of the fluorescence quenching and the concentration of citalopram provided the nano-sensor signal. The nano-sensor was used to measure citalopram in complex matrices such as human plasma and urine samples with remarkable selectivity and sensitivity. The detection limit of 10.3 µg.L-1 over a linear range of 100 to 700 µg.L-1, and RSD of 3.15% was obtained. This nano-sensor was applied to analyze of citalopram in plasma and human urine samples with remarkable results.
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Affiliation(s)
- Amir Amiri
- Analytical Chemistry Department, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Farnoush Faridbod
- Analytical Chemistry Department, School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
| | - Sheida Zoughi
- Analytical Chemistry Department, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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2
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Mostafa AM, Barton SJ, Wren SP, Barker J. Development of Highly Sensitive Fluorescent Sensors for Separation-Free Detection and Quantitation Systems of Pepsin Enzyme Applying a Structure-Guided Approach. BIOSENSORS 2024; 14:151. [PMID: 38534258 DOI: 10.3390/bios14030151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/13/2024] [Accepted: 03/18/2024] [Indexed: 03/28/2024]
Abstract
Two fluorescent molecularly imprinted polymers (MIPs) were developed for pepsin enzyme utilising fluorescein and rhodamine b. The main difference between both dyes is the presence of two (diethylamino) groups in the structure of rhodamine b. Consequently, we wanted to investigate the effect of these functional groups on the selectivity and sensitivity of the resulting MIPs. Therefore, two silica-based MIPs for pepsin enzyme were developed using 3-aminopropyltriethoxysilane as a functional monomer and tetraethyl orthosilicate as a crosslinker to achieve a one-pot synthesis. Results of our study revealed that rhodamine b dyed MIPs (RMIPs) showed stronger binding, indicated by a higher binding capacity value of 256 mg g-1 compared to 217 mg g-1 for fluorescein dyed MIPs (FMIPs). Moreover, RMIPs showed superior sensitivity in the detection and quantitation of pepsin with a linear range from 0.28 to 42.85 µmol L-1 and a limit of detection (LOD) as low as 0.11 µmol L-1. In contrast, FMIPs covered a narrower range from 0.71 to 35.71 µmol L-1, and the LOD value reached 0.34 µmol L-1, which is three times less sensitive than RMIPs. Finally, the developed FMIPs and RMIPs were applied to a separation-free quantification system for pepsin in saliva samples without interference from any cross-reactors.
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Affiliation(s)
- Aya M Mostafa
- School of Life Sciences, Pharmacy and Chemistry, Kingston University, Kingston upon Thames, London KT1 2EE, UK
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Stephen J Barton
- School of Life Sciences, Pharmacy and Chemistry, Kingston University, Kingston upon Thames, London KT1 2EE, UK
| | - Stephen P Wren
- School of Life Sciences, Pharmacy and Chemistry, Kingston University, Kingston upon Thames, London KT1 2EE, UK
| | - James Barker
- School of Life Sciences, Pharmacy and Chemistry, Kingston University, Kingston upon Thames, London KT1 2EE, UK
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3
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Kim J, Kim J, Jin Y, Cho SW. In situbiosensing technologies for an organ-on-a-chip. Biofabrication 2023; 15:042002. [PMID: 37587753 DOI: 10.1088/1758-5090/aceaae] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 07/25/2023] [Indexed: 08/18/2023]
Abstract
Thein vitrosimulation of organs resolves the accuracy, ethical, and cost challenges accompanyingin vivoexperiments. Organoids and organs-on-chips have been developed to model thein vitro, real-time biological and physiological features of organs. Numerous studies have deployed these systems to assess thein vitro, real-time responses of an organ to external stimuli. Particularly, organs-on-chips can be most efficiently employed in pharmaceutical drug development to predict the responses of organs before approving such drugs. Furthermore, multi-organ-on-a-chip systems facilitate the close representations of thein vivoenvironment. In this review, we discuss the biosensing technology that facilitates thein situ, real-time measurements of organ responses as readouts on organ-on-a-chip systems, including multi-organ models. Notably, a human-on-a-chip system integrated with automated multi-sensing will be established by further advancing the development of chips, as well as their assessment techniques.
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Affiliation(s)
- Jinyoung Kim
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Junghoon Kim
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Yoonhee Jin
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
- Institute for Basic Science (IBS), Center for Nanomedicine, Seoul 03722, Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, Seoul 03722, Republic of Korea
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4
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Ostrovidov S, Ramalingam M, Bae H, Orive G, Fujie T, Hori T, Nashimoto Y, Shi X, Kaji H. Molecularly Imprinted Polymer-Based Sensors for the Detection of Skeletal- and Cardiac-Muscle-Related Analytes. SENSORS (BASEL, SWITZERLAND) 2023; 23:5625. [PMID: 37420790 DOI: 10.3390/s23125625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 07/09/2023]
Abstract
Molecularly imprinted polymers (MIPs) are synthetic polymers with specific binding sites that present high affinity and spatial and chemical complementarities to a targeted analyte. They mimic the molecular recognition seen naturally in the antibody/antigen complementarity. Because of their specificity, MIPs can be included in sensors as a recognition element coupled to a transducer part that converts the interaction of MIP/analyte into a quantifiable signal. Such sensors have important applications in the biomedical field in diagnosis and drug discovery, and are a necessary complement of tissue engineering for analyzing the functionalities of the engineered tissues. Therefore, in this review, we provide an overview of MIP sensors that have been used for the detection of skeletal- and cardiac-muscle-related analytes. We organized this review by targeted analytes in alphabetical order. Thus, after an introduction to the fabrication of MIPs, we highlight different types of MIP sensors with an emphasis on recent works and show their great diversity, their fabrication, their linear range for a given analyte, their limit of detection (LOD), specificity, and reproducibility. We conclude the review with future developments and perspectives.
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Affiliation(s)
- Serge Ostrovidov
- Department of Diagnostic and Therapeutic Systems Engineering, Institute of Biomaterials and Bioengineering (IBB), Tokyo Medical and Dental University (TMDU), Tokyo 101-0062, Japan
| | - Murugan Ramalingam
- Institute of Tissue Regeneration Engineering, Dankook University, Cheonan 31116, Republic of Korea
- Department of Nanobiomedical Science, BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
- Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan 31116, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Center, Dankook University, Cheonan 31116, Republic of Korea
- School of Basic Medical Science, Institute for Advanced Study, Affiliated Hospital of Chengdu University, Chengdu University, Chengdu 610106, China
- Department of Metallurgical and Materials Engineering, Atilim University, 06830 Ankara, Turkey
- School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China
- Institute of Precision Medicine, Medical and Life Sciences Faculty, Furtwangen University, 78054 Villingen-Schwennigen, Germany
| | - Hojae Bae
- KU Convergence Science and Technology Institute, Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Hwayang-dong, Kwangjin-gu, Seoul 05029, Republic of Korea
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Research Group, 01009 Vitoria-Gasteiz, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 01006 Vitoria-Gasteiz, Spain
| | - Toshinori Fujie
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
- Living System Materialogy (LiSM) Research Group, International Research Frontiers Initiative (IRFI), Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Takeshi Hori
- Department of Diagnostic and Therapeutic Systems Engineering, Institute of Biomaterials and Bioengineering (IBB), Tokyo Medical and Dental University (TMDU), Tokyo 101-0062, Japan
| | - Yuji Nashimoto
- Department of Diagnostic and Therapeutic Systems Engineering, Institute of Biomaterials and Bioengineering (IBB), Tokyo Medical and Dental University (TMDU), Tokyo 101-0062, Japan
| | - Xuetao Shi
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Hirokazu Kaji
- Department of Diagnostic and Therapeutic Systems Engineering, Institute of Biomaterials and Bioengineering (IBB), Tokyo Medical and Dental University (TMDU), Tokyo 101-0062, Japan
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5
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Wang P, Zhou M, Wei Z, Liu L, Cheng T, Tian X, Pan J. Preparation of bowl-shaped polydopamine surface imprinted polymer composite adsorbent for specific separation of 2′-deoxyadenosine. Chin J Chem Eng 2023. [DOI: 10.1016/j.cjche.2023.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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6
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Cardoso AR, Alves JF, Frasco MF, Piloto AM, Serrano V, Mateus D, Sebastião AI, Matos AM, Carmo A, Cruz T, Fortunato E, Sales MGF. An ultra-sensitive electrochemical biosensor using the Spike protein for capturing antibodies against SARS-CoV-2 in point-of-care. Mater Today Bio 2022; 16:100354. [PMID: 35847374 PMCID: PMC9270181 DOI: 10.1016/j.mtbio.2022.100354] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/02/2022] [Accepted: 07/05/2022] [Indexed: 11/30/2022] Open
Abstract
This work presents an innovative ultra-sensitive biosensor having the Spike protein on carbon-based screen-printed electrodes (SPEs), for monitoring in point-of-care antibodies against SARS-CoV-2, a very important tool for epidemiological monitoring of COVID-19 infection and establishing vaccination schemes. In an innovative and simple approach, a highly conductive support is combined with the direct adsorption of Spike protein to enable an extensive antibody capture. The high conductivity was ensured by using carboxylated carbon nanotubes on the carbon electrode, by means of a simple and quick approach, which also increased the surface area. These were then modified with EDC/NHS chemistry to produce an amine layer and undergo Spike protein adsorption, to generate a stable layer capable of capturing the antibodies against SARS-CoV-2 in serum with great sensitivity. Electrochemical impedance spectroscopy was used to evaluate the analytical performance of this biosensor in serum. It displayed a linear response between 1.0 pg/mL and 10 ng/mL, with a detection limit of ∼0.7 pg/mL. The analysis of human positive sera containing antibody in a wide range of concentrations yielded accurate data, correlating well with the reference method. It also offered the unique ability of discriminating antibody concentrations in sera below 2.3 μg/mL, the lowest value detected by the commercial method. In addition, a proof-of-concept study was performed by labelling anti-IgG antibodies with quantum dots to explore a new electrochemical readout based on the signal generated upon binding to the anti-S protein antibodies recognised on the surface of the biosensor. Overall, the alternative serologic assay presented is a promising tool for assessing protective immunity to SARS-CoV-2 and a potential guide for revaccination. An ultra-sensitive biosensor for detection of low levels of antibodies against SARS-CoV-2. Highly conductive substrate with adsorbed protein S and point-of-care capability. Application to human sera samples and good correlation with commercial method. Electrochemical impedance readings with an iron-based redox probe. Alternative electrochemical impedance readings with anti-IgG labelled with quantum dots.
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Affiliation(s)
- Ana R Cardoso
- BioMark@UC/CEB - LABBELS, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal.,BioMark@ISEP/ CEB - LABBELS, School of Engineering, Polytechnic Institute of Porto, Porto, Portugal.,CENIMAT
- i3N, Department of Materials Science, School of Science and Technology, NOVA University of Lisbon and CEMOP/UNINOVA, Campus de Caparica, 2829-516, Caparica, Portugal
| | - João Frederico Alves
- BioMark@UC/CEB - LABBELS, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
| | - Manuela F Frasco
- BioMark@UC/CEB - LABBELS, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
| | - Ana Margarida Piloto
- BioMark@ISEP/ CEB - LABBELS, School of Engineering, Polytechnic Institute of Porto, Porto, Portugal
| | - Verónica Serrano
- BioMark@UC/CEB - LABBELS, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
| | - Daniela Mateus
- BioMark@UC/CEB - LABBELS, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal.,Center for Neuroscience and Cell Biology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Ana Isabel Sebastião
- Center for Neuroscience and Cell Biology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Ana Miguel Matos
- Chemical Engineering Processes and Forest Products Research Center, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Anália Carmo
- Clinical Pathology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Teresa Cruz
- Center for Neuroscience and Cell Biology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Elvira Fortunato
- CENIMAT
- i3N, Department of Materials Science, School of Science and Technology, NOVA University of Lisbon and CEMOP/UNINOVA, Campus de Caparica, 2829-516, Caparica, Portugal
| | - M Goreti F Sales
- BioMark@UC/CEB - LABBELS, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal.,BioMark@ISEP/ CEB - LABBELS, School of Engineering, Polytechnic Institute of Porto, Porto, Portugal
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7
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Shah NS, Thotathil V, Zaidi SA, Sheikh H, Mohamed M, Qureshi A, Sadasivuni KK. Picomolar or beyond Limit of Detection Using Molecularly Imprinted Polymer-Based Electrochemical Sensors: A Review. BIOSENSORS 2022; 12:1107. [PMID: 36551073 PMCID: PMC9775238 DOI: 10.3390/bios12121107] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Over the last decades, molecularly imprinted polymers (MIPs) have emerged as selective synthetic receptors that have a selective binding site for specific analytes/target molecules. MIPs are synthetic analogues to the natural biological antigen-antibody system. Owing to the advantages they exhibit, such as high stability, simple synthetic procedure, and cost-effectiveness, MIPs have been widely used as receptors/sensors for the detection and monitoring of a variety of analytes. Moreover, integrating electrochemical sensors with MIPs offers a promising approach and demonstrates greater potential over traditional MIPs. In this review, we have compiled the methods and techniques for the production of MIP-based electrochemical sensors along with the applications of reported MIP sensors for a variety of analytes. A comprehensive in-depth analysis of recent trends reported on picomolar (pM/10-12 M)) and beyond picomolar concentration LOD (≥pM) achieved using MIPs sensors is reported. Finally, we discuss the challenges faced and put forward future perspectives along with our conclusion.
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Affiliation(s)
- Naheed Sidiq Shah
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha P.O. Box 2713, Qatar
| | - Vandana Thotathil
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha P.O. Box 2713, Qatar
| | - Shabi Abbas Zaidi
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha P.O. Box 2713, Qatar
| | - Hanan Sheikh
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha P.O. Box 2713, Qatar
| | - Maimoona Mohamed
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha P.O. Box 2713, Qatar
| | - Ahmadyar Qureshi
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha P.O. Box 2713, Qatar
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8
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Lima FMR, de Menezes AS, Maciel AP, Sinfrônio FSM, Kubota LT, Damos FS, Luz RCS. Zero-Biased Photoelectrochemical Detection of Cardiac Biomarker Myoglobin Based on CdSeS/ZnS Quantum Dots and Barium Titanate Perovskite. Molecules 2022; 27:molecules27154778. [PMID: 35897951 PMCID: PMC9330231 DOI: 10.3390/molecules27154778] [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: 05/19/2022] [Revised: 07/10/2022] [Accepted: 07/21/2022] [Indexed: 02/05/2023] Open
Abstract
Cardiovascular diseases are considered one of the leading causes of premature mortality of patients worldwide. Therefore, rapid diagnosis of these diseases is crucial to ensure the patient's survival. During a heart attack or severe muscle damage, myoglobin is rapidly released in the body to constitute itself as a precise biomarker of acute myocardial infarction. Thus, we described the photoelectrochemical immunosensor development to detect myoglobin. It was based on fluorine-doped tin oxide modified with CdSeS/ZnSe quantum dots and barium titanate (BTO), designated as CdSeS/ZnSQDS/BTO. It was characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDX), transmission electron microscopy (TEM), X-ray diffraction (XRD), electrochemical impedance spectroscopy (EIS), and amperometry. The anodic photocurrent at the potential of 0 V (vs. Ag/AgCl) and pH 7.4 was found linearly related to the myoglobin (Mb) concentration from 0.01 to 1000 ng mL-1. Furthermore, the immunosensor showed an average recovery rate of 95.7-110.7% for the determination of myoglobin.
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Affiliation(s)
- Fernanda M. R. Lima
- Department of Chemistry, Federal University of Maranhão, São Luís 65080-805, Brazil; (F.M.R.L.); (A.P.M.)
| | - Alan S. de Menezes
- Department of Physics, Federal University of Maranhão, São Luís 65080-805, Brazil;
| | - Adeilton P. Maciel
- Department of Chemistry, Federal University of Maranhão, São Luís 65080-805, Brazil; (F.M.R.L.); (A.P.M.)
| | | | - Lauro T. Kubota
- Institute of Chemistry, State University of Campinas, Campinas 13083-970, Brazil;
| | - Flávio S. Damos
- Department of Chemistry, Federal University of Maranhão, São Luís 65080-805, Brazil; (F.M.R.L.); (A.P.M.)
- Correspondence: (F.S.D.); (R.C.S.L.)
| | - Rita C. S. Luz
- Department of Chemistry, Federal University of Maranhão, São Luís 65080-805, Brazil; (F.M.R.L.); (A.P.M.)
- Correspondence: (F.S.D.); (R.C.S.L.)
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9
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Dual selective sensor for exosomes in serum using magnetic imprinted polymer isolation sandwiched with aptamer/graphene oxide based FRET fluorescent ignition. Biosens Bioelectron 2022; 207:114112. [DOI: 10.1016/j.bios.2022.114112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 12/27/2022]
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10
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Asadian M, Ahadpour S, Mirmasoudi F. Quantum correlated heat engine in XY chain with Dzyaloshinskii-Moriya interactions. Sci Rep 2022; 12:7081. [PMID: 35490156 PMCID: PMC9056535 DOI: 10.1038/s41598-022-11146-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 04/06/2022] [Indexed: 11/21/2022] Open
Abstract
In this paper, we consider a heat engines composed of two interactional qubits with spin-orbit interaction (Dzyaloshinskii–Moriya (DM)) subject to an external magnetic field, so that each qubit is coupled with cold or hot source. One intention of this work is to investigate the following question: is it possible the effects of DM lead to improve basic thermodynamic quantities in this heat engine are coupled to local environments that are not necessarily at equilibrium? Moreover, we study whether or not quantum correlations can be helpful in the performance of quantum work engines. For this end, we investigate the effects of the temperature and the interaction rate of each qubit with its surrounding environment on quantum correlations such as quantum coherence and quantum discord and quantum entanglements, as well as the generated work. Finally we compare three quantum correlations (entanglement, discord, and coherence) with thermodynamic parameters and show that the output work is positive for what values of the magnetic field so that this cycle can be considered as a thermal machine.
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Affiliation(s)
- M Asadian
- Department of Physics, University of Mohaghegh Ardabili, 56199-11367, Ardabil, Iran
| | - S Ahadpour
- Department of Physics, University of Mohaghegh Ardabili, 56199-11367, Ardabil, Iran.
| | - F Mirmasoudi
- Department of Physics, University of Mohaghegh Ardabili, 56199-11367, Ardabil, Iran
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11
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Piloto AML, Ribeiro DSM, Rodrigues SSM, Santos JLM, Sampaio P, Sales MGF. Cellulose-based hydrogel on quantum dots with molecularly imprinted polymers for the detection of CA19-9 protein cancer biomarker. Mikrochim Acta 2022; 189:134. [PMID: 35247077 DOI: 10.1007/s00604-022-05230-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 02/14/2022] [Indexed: 01/08/2023]
Abstract
Molecularly imprinted polymers MIPs were successfully assembled around quantum dots (QDs), for the detection of the protein biomarker CA19-9 associated to pancreatic cancer (PC). These imprinted materials MIP@QDs were incorporated within the cellulose hydrogel with retention of its conformational structure inside the binding cavities. The concept is to use MIPs which function as the biorecognition elements, conjugated to cadmium telluride QDs as the sensing system. The excitation wavelength was set to 477 nm and the fluorescence signal was measured at its maximum intensity, with an emission range between 530 and 780 nm. The fluorescence quenching of the imprinted cellulose hydrogels occurred with increasing concentrations of CA19-9, showing linearity in the range 2.76 × 10 -2 - 5.23 × 10 2 U/ml, in a 1000-fold diluted human serum. Replicates of the imprinted hydrogel show a linear response below the cut-off values for pancreatic cancer diagnosis (< 23 U/ml), a limit of detection of 1.58 × 10 -3 U/ml and an imprinting factor (IF) of 1.76. In addition to the fact that the imprinted cellulose hydrogel displays good stability and selectivity towards CA19-9 when compared with the non-imprinted controls, the conjugation of MIPs to QDs increases the sensitivity of the system for an optical detection method towards ranges within clinical significance. This fact shows potential for the imprinted hydrogel to be applied as a sensitive, low-cost format for point-of-care tests (PoCTs).
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Affiliation(s)
- Ana Margarida L Piloto
- BioMark/ISEP, School of Engineering of the Polytechnic Institute of Porto, Porto, Portugal. .,Centre of Biological Engineering, CEB, Minho University, Braga, Portugal.
| | - David S M Ribeiro
- LAQV, REQUIMTE, Faculty of Pharmacy, Laboratory of Applied Chemistry, Department of Chemical Sciences, University of Porto, Porto, Portugal
| | - S Sofia M Rodrigues
- LAQV, REQUIMTE, Faculty of Pharmacy, Laboratory of Applied Chemistry, Department of Chemical Sciences, University of Porto, Porto, Portugal
| | - João L M Santos
- LAQV, REQUIMTE, Faculty of Pharmacy, Laboratory of Applied Chemistry, Department of Chemical Sciences, University of Porto, Porto, Portugal
| | - Paula Sampaio
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade Do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Porto, Portugal
| | - Maria Goreti Ferreira Sales
- BioMark/ISEP, School of Engineering of the Polytechnic Institute of Porto, Porto, Portugal.,Centre of Biological Engineering, CEB, Minho University, Braga, Portugal.,BioMark/UC, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
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12
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Development of novel aptasensor for ultra-sensitive detection of myoglobin via electrochemical signal amplification of methylene blue using poly (styrene)-block-poly (acrylic acid) amphiphilic copolymer. Talanta 2022; 237:122950. [PMID: 34736676 DOI: 10.1016/j.talanta.2021.122950] [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: 07/17/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 01/25/2023]
Abstract
Amplification of electrochemical signal in order to betterment of limit of detection in determination of biomarkers has an important role in early detection of some dangerous diseases such as cancers. For this purpose, in this research, two types of poly (styrene)-block-poly (acrylic acid) amphiphilic copolymer (PS61-b-PAA596 and PS596-b-PAA61) were synthesized by controlled radical polymerization method via reversible addition-fragmentation chain transfer polymerization (RAFT) technique. Chemical structure of block copolymers was confirmed by FT-IR spectroscopy and their surface morphology was assessed by scanning electron microscopy (SEM). Self-assembly of these block copolymers into polymeric vesicles (polymersomes), loading and release efficiency of methylene blue as an electroactive indicator were investigated in DMF and THF solvents. On the basis of our findings PS61-b-PAA596 has better capability for loading and release of MB than PS596-b-PAA61. Then the obtained methylene blue-loaded polymersome successfully used for development of an aptasensor toward determination of trace amounts of myoglobin. The proposed aptasensor showed a wide linear range from 1.0 aM to 1.0 μM with an ultra-low detection limit of 0.73 aM. Applying this amplification strategy, determination of myoglobin in real samples was successfully performed.
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Mostafa AM, Barton SJ, Wren SP, Barker J. Review on molecularly imprinted polymers with a focus on their application to the analysis of protein biomarkers. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116431] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Yang L, Wei F, Liu JM, Wang S. Functional Hybrid Micro/Nanoentities Promote Agro-Food Safety Inspection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:12402-12417. [PMID: 34662114 DOI: 10.1021/acs.jafc.1c05185] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The rapid development of nanomaterials has provided a good theoretical basis and technical support to solve the problems of food safety inspection. The combination of functionalized composite nanomaterials and well-known detection methods is gradually applied to detect hazardous substances, such as chemical residues and toxins, in agricultural food products. This review concentrates on the latest agro-food safety inspection techniques and methodologies constructed with the assistance of new hybrid micro/nanoentities, such as molecular imprinting polymers integrated with quantum dots (MIPs@QDs), molecular imprinting polymers integrated with upconversion luminescent nanoparticles (MIPs@UCNPs), upconversion luminescent nanoparticles combined with metal-organic frameworks (UCNPs@MOFs), magnetic metal-organic frameworks (MOFs@Fe3O4), magnetic covalent-organic frameworks (Fe3O4@COFs), covalent-organic frameworks doped with quantum dots (COFs@QDs), nanobody-involved immunoassay for fast inspection, etc. The presented summary and discussion favor a relevant outlook for further integrating various disciplines, like material science, nanotechnology, and analytical methodology, for addressing new challenges that emerge in agro-food research fields.
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Affiliation(s)
- Lu Yang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Fan Wei
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Jing-Min Liu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Shuo Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
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Parisi OI, Dattilo M, Patitucci F, Malivindi R, Delbue S, Ferrante P, Parapini S, Galeazzi R, Cavarelli M, Cilurzo F, Franzè S, Perrotta I, Pezzi V, Selmin F, Ruffo M, Puoci F. Design and development of plastic antibodies against SARS-CoV-2 RBD based on molecularly imprinted polymers that inhibit in vitro virus infection. NANOSCALE 2021; 13:16885-16899. [PMID: 34528987 DOI: 10.1039/d1nr03727g] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The present research study reports the development of plastic antibodies based on Molecularly Imprinted Polymers (MIPs) capable of selectively binding a portion of the novel coronavirus SARS-CoV-2 spike protein. Indeed, molecular imprinting represents a very promising and attractive technology for the synthesis of MIPs characterized by specific recognition abilities for a target molecule. Given these characteristics, MIPs can be considered tailor-made synthetic antibodies obtained by a templating process. After in silico analysis, imprinted nanoparticles were synthesized by inverse microemulsion polymerization and their ability to prevent the interaction between ACE2 and the receptor-binding domain of SARS-CoV-2 was investigated. Of relevance, the developed synthetic antibodies are capable of significantly inhibiting virus replication in Vero cell culture, suggesting their potential application in the treatment, prevention and diagnosis of SARS-CoV-2 infection.
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Affiliation(s)
- Ortensia Ilaria Parisi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy.
- Macrofarm s.r.l., c/o Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy
| | - Marco Dattilo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy.
| | - Francesco Patitucci
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy.
| | - Rocco Malivindi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy.
- Macrofarm s.r.l., c/o Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy
| | - Serena Delbue
- Department of Biomedical, Surgical and Dental Sciences, Laboratory of Translational Research, University of Milan, 20133 Milano, Italy
| | - Pasquale Ferrante
- Department of Biomedical, Surgical and Dental Sciences, Laboratory of Translational Research, University of Milan, 20133 Milano, Italy
| | - Silvia Parapini
- Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy
| | - Roberta Galeazzi
- Department of Life and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy
| | - Mariangela Cavarelli
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Francesco Cilurzo
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy
| | - Silvia Franzè
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy
| | - Ida Perrotta
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, CS, Italy
| | - Vincenzo Pezzi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy.
- Macrofarm s.r.l., c/o Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy
| | - Francesca Selmin
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy
| | - Mariarosa Ruffo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy.
- Macrofarm s.r.l., c/o Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy
| | - Francesco Puoci
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy.
- Macrofarm s.r.l., c/o Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy
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16
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Regan B, O'Kennedy R, Collins D. Advances in point-of-care testing for cardiovascular diseases. Adv Clin Chem 2021; 104:1-70. [PMID: 34462053 DOI: 10.1016/bs.acc.2020.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Point-of-care testing (POCT) is a specific format of diagnostic testing that is conducted without accompanying infrastructure or sophisticated instrumentation. Traditionally, such rapid sample-to-answer assays provide inferior analytical performances to their laboratory counterparts when measuring cardiac biomarkers. Hence, their potentially broad applicability is somewhat bound by their inability to detect clinically relevant concentrations of cardiac troponin (cTn) in the early stages of myocardial injury. However, the continuous refinement of biorecognition elements, the optimization of detection techniques, and the fabrication of tailored fluid handling systems to manage the sensing process has stimulated the production of commercial assays that can support accelerated diagnostic pathways. This review will present the latest commercial POC assays and examine their impact on clinical decision-making. The individual elements that constitute POC assays will be explored, with an emphasis on aspects that contribute to economically feasible and highly sensitive assays. Furthermore, the prospect of POCT imparting a greater influence on early interventions for medium to high-risk individuals and the potential to re-shape the paradigm of cardiovascular risk assessments will be discussed.
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Affiliation(s)
- Brian Regan
- School of Biotechnology, Dublin City University, Dublin, Ireland.
| | - Richard O'Kennedy
- School of Biotechnology, Dublin City University, Dublin, Ireland; Research Complex, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - David Collins
- School of Biotechnology, Dublin City University, Dublin, Ireland
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17
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Mamipour Z, Nematollahzadeh A, Kompany-Zareh M. Molecularly imprinted polymer grafted on paper and flat sheet for selective sensing and diagnosis: a review. Mikrochim Acta 2021; 188:279. [PMID: 34331135 DOI: 10.1007/s00604-021-04930-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/05/2021] [Indexed: 12/14/2022]
Abstract
Molecularly imprinted polymers are efficient and selective adsorbents which act as artificial receptors for desired compounds with the ability to recognize the size, shape, and functional groups of the compounds simultaneously. A molecularly imprinted polymer is prepared by the polymerization of functional monomers around a template (analyte) molecule. Afterward, the removal of the template from the polymer matrix leaves a selective cavity behind. The fabrication and development of molecularly imprinted polymers grew rapidly, due to their low cost, simple preparation, selectivity, sensitivity, and stable physicochemical properties. Traditionally, molecularly imprinted polymers can be synthesized using two main methods, namely bulk and surface imprinting. For more efficient use of the latter method, researchers have developed molecularly imprinted polymers grafted on the solid-phase matrix (substrate). This grafting technique would be particularly useful for surface imprinting of macromolecules, such as proteins. Cellulose fibers of papers with unique properties such as being abundant, retaining a porous structure, having good adsorption properties, and possessing hydroxyl groups naturally have gained much attention as substrate. The goal of this review is to introduce molecularly imprinted polymer-grafted or molecularly imprinted polymer-coated paper, as an interesting, simple, and efficient method in the detection and separation of small and large molecules. Therefore, in the present paper, several recent preparation techniques and applications of molecularly imprinted polymer-grafted paper are reviewed and discussed in detail. Green, cost-effective, selective, and sensitive paper-based sensor prepared via grafting molecularly imprinted polymer on paper surface with the potential use for online detection trace of analytes in the point-of-care testing.
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Affiliation(s)
- Zahra Mamipour
- Department of Chemistry, Institute of Advanced Studies in Basic Sciences, Zanjan, Iran.,Chemical Engineering Department, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran
| | - Ali Nematollahzadeh
- Chemical Engineering Department, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran.
| | - Mohsen Kompany-Zareh
- Department of Chemistry, Institute of Advanced Studies in Basic Sciences, Zanjan, Iran. .,Department of Chemistry, Dalhousie University, PO Box 15000, Halifax, NS, B3H 4R2, Canada.
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18
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Piloto AML, Ribeiro DSM, Rodrigues SSM, Santos JLM, Sampaio P, Sales G. Imprinted Fluorescent Cellulose Membranes for the On-Site Detection of Myoglobin in Biological Media. ACS APPLIED BIO MATERIALS 2021; 4:4224-4235. [PMID: 35006835 DOI: 10.1021/acsabm.1c00039] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this work, the conjugation of molecularly imprinted polymers (MIPs) to quantum dots (QDs) was successfully applied in the assembly of an imprinted cellulose membrane [hydroxy ethyl cellulose (HEC)/MIP@QDs] for the specific recognition of the cardiac biomarker myoglobin (Myo) as a sensitive, user-friendly, and portable system with the potential for point-of-care (POC) applications. The concept is to use the MIPs as biorecognition elements, previously prepared on the surface of semiconductor cadmium telluride QDs as detection particles. The fluorescent quenching of the membrane occurred with increasing concentrations of Myo, showing linearity in the interval range of 7.39-291.3 pg/mL in a1000-fold diluted human serum. The best membrane showed a linear response below the cutoff values for myocardial infarction (23 ng/mL), a limit of detection of 3.08 pg/mL, and an imprinting factor of 1.65. The incorporation of the biorecognition element MIPs on the cellulose substrate brings an approach toward a portable and user-friendly device in a sustainable manner. Overall, the imprinted membranes display good stability and selectivity toward Myo when compared with the nonimprinted membranes (HEC/NIP@QDs) and have the potential to be applied as a sensitive system for Myo detection in the presence of other proteins. Moreover, the conjugation of MIPs to QDs increases the sensitivity of the system for an optical label-free detection method, reaching concentration levels with clinical significance.
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Affiliation(s)
- Ana Margarida L Piloto
- BioMark Sensor Research, School of Engineering of the Polytechnic Institute of Porto, 4249-015 Porto, Portugal.,CEB, Centre of Biological Engineering, Minho University, 4710-057 Braga, Portugal
| | - David S M Ribeiro
- Associated Laboratory for Green Chemistry LAQV-REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, Porto University, 4050-313 Porto, Portugal
| | - S Sofia M Rodrigues
- Associated Laboratory for Green Chemistry LAQV-REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, Porto University, 4050-313 Porto, Portugal
| | - João L M Santos
- Associated Laboratory for Green Chemistry LAQV-REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, Porto University, 4050-313 Porto, Portugal
| | - Paula Sampaio
- i3S-Institute for Research and Innovation in Health, Porto University, 4200-135 Porto, Portugal.,IBMC-Institute of Molecular and Cell Biology, Porto University, 4200-135 Porto, Portugal
| | - Goreti Sales
- BioMark Sensor Research, School of Engineering of the Polytechnic Institute of Porto, 4249-015 Porto, Portugal.,CEB, Centre of Biological Engineering, Minho University, 4710-057 Braga, Portugal.,BioMark/UC, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
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19
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Amiri A, Faridbod F, Zoughi S. An optical nanosensor fabricated by carbon dots embedded in silica molecularly imprinted polymer for sensitive detection of ceftazidime antibiotic. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113111] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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21
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Kazemifard N, Ensafi AA, Dehkordi ZS. A review of the incorporation of QDs and imprinting technology in optical sensors – imprinting methods and sensing responses. NEW J CHEM 2021. [DOI: 10.1039/d1nj01104a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review aims to cover the simultaneous method of using molecularly imprinted technology and quantum dots (QDs) as well as its application in the field of optical sensors.
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Affiliation(s)
- Nafiseh Kazemifard
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
| | - Ali A. Ensafi
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
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22
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The Recent Advances of Fluorescent Sensors Based on Molecularly Imprinted Fluorescent Nanoparticles for Pharmaceutical Analysis. Curr Med Sci 2020; 40:407-421. [PMID: 32681246 PMCID: PMC7366466 DOI: 10.1007/s11596-020-2195-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/22/2020] [Indexed: 12/16/2022]
Abstract
Fluorescent nanoparticles have good chemical stability and photostability, controllable optical properties and larger stokes shift. In light of their designability and functionability, the fluorescent nanoparticles are widely used as the fluorescent probes for diverse applications. To enhance the sensitivity and selectivity, the combination of the fluorescent nanoparticles with the molecularly imprinted polymer, i.e. molecularly imprinted fluorescent nanoparticles (MIFN), was an effective way. The sensor based on MIFN (the MIFN sensor) could be more compatible with the complex sample matrix, which was especially widely adopted in medical and biological analysis. In this mini-review, the construction method, detective mechanism and types of MIFN sensors are elaborated. The current applications of MIFN sensors in pharmaceutical analysis, including pesticides/herbicide, veterinary drugs/drugs residues and human related proteins, are highlighted based on the literature in the recent three years. Finally, the research prospect and development trend of the MIFN sensor are forecasted.
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23
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Zakery M, Ensafi AA, Rezaei B. Detection of theophylline using molecularly imprinted polymers based on thioglycolic acid-modified CdTe quantum dots. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-019-01798-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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24
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Singh N, Ali MA, Rai P, Ghori I, Sharma A, Malhotra BD, John R. Dual-modality microfluidic biosensor based on nanoengineered mesoporous graphene hydrogels. LAB ON A CHIP 2020; 20:760-777. [PMID: 31951241 DOI: 10.1039/c9lc00751b] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A dual-modality microfluidic biosensor is fabricated using a mesoporous nanostructured cysteine-graphene hydrogel for the quantification of human cardiac myoglobin (cMb). In this device, the nanoengineered mesoporous l-cysteine-graphene (Cys-RGO) hydrogel performs the role of a dual-modality sensing electrode for the measurements conducted using differential pulse voltammetry and surface plasmon resonance (SPR) techniques. High surface reactivity, mesoporous structure and fast electron transfer combined with good reaction kinetics of the graphene hydrogel in this device indicate excellent performance for the detection of human cardiac myoglobin in serum samples. In electrochemical modality, this microfluidic chip exhibits a high sensitivity of 196.66 μA ng-1 mL cm-2 for a linear range of concentrations (0.004-1000 ng mL-1) with a low limit of detection (LOD) of 4 pg mL-1 while the SPR technique shows a LOD of 10 pg mL-1 for cMb monitoring in the range 0.01-1000 ng mL-1. The intra-assay coefficient of variation was less than 8% for standard samples and 9% for real serum samples, respectively. This Cys-RGO hydrogel-based microfluidic SPR chip allows real-time dynamic tracking of cMb molecules with a high association constant of 4.93 ± 0.2 × 105 M-1 s-1 and a dissociation constant of 1.37 ± 0.08 × 10-4 s-1, self-verification, reduced false readout, and improved detection reliability.
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Affiliation(s)
- Nawab Singh
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, 502285 Telangana, India.
| | - Md Azahar Ali
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana-46556, USA
| | - Prabhakar Rai
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Inayathullah Ghori
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, 502285 Telangana, India. and Department of Cardiology, Kamineni Koti Hospital, Hyderabad-500001, Telangana, India
| | - Ashutosh Sharma
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - B D Malhotra
- Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Main Bawana Road, Delhi-110042, India
| | - Renu John
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, 502285 Telangana, India.
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Regan B, Boyle F, O'Kennedy R, Collins D. Evaluation of Molecularly Imprinted Polymers for Point-of-Care Testing for Cardiovascular Disease. SENSORS (BASEL, SWITZERLAND) 2019; 19:E3485. [PMID: 31395843 PMCID: PMC6720456 DOI: 10.3390/s19163485] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 07/29/2019] [Accepted: 08/06/2019] [Indexed: 12/13/2022]
Abstract
Molecular imprinting is a rapidly growing area of interest involving the synthesis of artificial recognition elements that enable the separation of analyte from a sample matrix and its determination. Traditionally, this approach can be successfully applied to small analyte (<1.5 kDa) separation/ extraction, but, more recently it is finding utility in biomimetic sensors. These sensors consist of a recognition element and a transducer similar to their biosensor counterparts, however, the fundamental distinction is that biomimetic sensors employ an artificial recognition element. Molecularly imprinted polymers (MIPs) employed as the recognition elements in biomimetic sensors contain binding sites complementary in shape and functionality to their target analyte. Despite the growing interest in molecularly imprinting techniques, the commercial adoption of this technology is yet to be widely realised for blood sample analysis. This review aims to assess the applicability of this technology for the point-of-care testing (POCT) of cardiovascular disease-related biomarkers. More specifically, molecular imprinting is critically evaluated with respect to the detection of cardiac biomarkers indicative of acute coronary syndrome (ACS), such as the cardiac troponins (cTns). The challenges associated with the synthesis of MIPs for protein detection are outlined, in addition to enhancement techniques that ultimately improve the analytical performance of biomimetic sensors. The mechanism of detection employed to convert the analyte concentration into a measurable signal in biomimetic sensors will be discussed. Furthermore, the analytical performance of these sensors will be compared with biosensors and their potential implementation within clinical settings will be considered. In addition, the most suitable application of these sensors for cardiovascular assessment will be presented.
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Affiliation(s)
- Brian Regan
- School of Biotechnology, Dublin City University, Dublin 9, Ireland.
| | - Fiona Boyle
- School of Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Richard O'Kennedy
- School of Biotechnology, Dublin City University, Dublin 9, Ireland
- Research Complex, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - David Collins
- School of Biotechnology, Dublin City University, Dublin 9, Ireland
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26
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Liao Y, Cui X, Chen G, Wang Y, Qin G, Li M, Zhang X, Zhang Y, Zhang C, Du P, Yan F, El-Aty AMA, Wang J, Zhang C, Jin M. Simple and sensitive detection of triazophos pesticide by using quantum dots nanobeads based on immunoassay. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1597022] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Affiliation(s)
- Yun Liao
- College of Food Science and Technology, Hainan University, Haikou, People’s Republic of China
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
| | - Xueyan Cui
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
| | - Ge Chen
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
| | - Yuanshang Wang
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
| | - Guoxin Qin
- Agro-products Quality Safety and Testing Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, People’s Republic of China
| | - Mingjie Li
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
| | - Xiuyuan Zhang
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
| | - Yudan Zhang
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
| | - Chan Zhang
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
| | - Pengfei Du
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
| | - Feiyan Yan
- Agro-products Quality Safety and Testing Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, People’s Republic of China
| | - A. M. Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Jing Wang
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
| | - Chenghui Zhang
- College of Food Science and Technology, Hainan University, Haikou, People’s Republic of China
| | - Maojun Jin
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science, Beijing, People’s Republic of China
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Ahmad OS, Bedwell TS, Esen C, Garcia-Cruz A, Piletsky SA. Molecularly Imprinted Polymers in Electrochemical and Optical Sensors. Trends Biotechnol 2018; 37:294-309. [PMID: 30241923 DOI: 10.1016/j.tibtech.2018.08.009] [Citation(s) in RCA: 272] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/25/2018] [Accepted: 08/30/2018] [Indexed: 12/14/2022]
Abstract
Molecular imprinting is the process of template-induced formation of specific recognition sites in a polymer. Synthetic receptors prepared using molecular imprinting possess a unique combination of properties such as robustness, high affinity, specificity, and low-cost production, which makes them attractive alternatives to natural receptors. Improvements in polymer science and nanotechnology have contributed to enhanced performance of molecularly imprinted polymer (MIP) sensors. Encouragingly, recent years have seen an increase in high-quality publications describing MIP sensors for the determination of biomolecules, drugs of abuse, and explosives, driving toward applications of this technology in medical and forensic diagnostics. This review aims to provide a focused overview of the latest achievements made in MIP-based sensor technology, with emphasis on research toward real-life applications.
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Affiliation(s)
- Omar S Ahmad
- Department of Chemistry, College of Education for Pure Science, University of Mosul, Mosul, Iraq; Department of Chemistry, College of Science and Engineering, University of Leicester, Leicester LE1 7RH, UK.
| | - Thomas S Bedwell
- Department of Chemistry, College of Science and Engineering, University of Leicester, Leicester LE1 7RH, UK
| | - Cem Esen
- Department of Chemistry, College of Science and Engineering, University of Leicester, Leicester LE1 7RH, UK; Department of Chemistry, Faculty of Arts and Sciences, Aydın Adnan Menderes University, Aydın 09010, Turkey
| | - Alvaro Garcia-Cruz
- Department of Chemistry, College of Science and Engineering, University of Leicester, Leicester LE1 7RH, UK
| | - Sergey A Piletsky
- Department of Chemistry, College of Science and Engineering, University of Leicester, Leicester LE1 7RH, UK
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