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Tukur F, Mabe T, Liu M, Tukur P, Wei J. A Plasmonic Nanoledge Array Sensor for Selective Detection of Cardiovascular Disease Biomarkers in Human Whole Blood. ACS APPLIED NANO MATERIALS 2024; 7:20024-20033. [PMID: 39296866 PMCID: PMC11406491 DOI: 10.1021/acsanm.4c02524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 08/05/2024] [Accepted: 08/05/2024] [Indexed: 09/21/2024]
Abstract
Optical sensors face challenges when detecting ultralow amounts of analytes in whole blood, including signal quenching due to optical absorption and false positives due to nonspecific binding. This study introduces gold nanoscale array features termed nanoledges (NLs), which interact with incident white light to produce a transmitted surface plasmon resonance (tSPR) signal. This extraordinary optical transmission (EOT) spectrum occurs in the near-infrared (NIR) region, thereby minimizing signal quenching caused by visible-light absorption from blood proteins and pigments. To develop a sensitive, selective, and label-free optical biosensor for detecting various levels of cardiac troponin I (cTnI) in very small volumes of whole blood samples, DNA aptamers are tethered to the NL surface, specifically binding to the cTnI biomarker. This biological binding activity alters the refractive index at the NL surface, causing a peak shift in the EOT spectrum and enabling quantification of cTnI levels. The NL array chip demonstrated high sensitivity for cTnI detection in buffer, human serum (HS), and human whole blood (HB), with detection limits of 0.079, 0.084, and 0.097 ng/mL, respectively. Control measurements using blank target mediums and those containing up to 125 ng/mL of other proteins, such as myoglobin, creatine kinase, and heparin, showed minimal interference and high specificity. The NL plasmonic array's performance in biosensing underscores its promise for clinical analysis and its potential development as a point-of-care platform for early cardiovascular disease (CVD) diagnostics.
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Affiliation(s)
- Frank Tukur
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, North Carolina 27401, United States
| | - Taylor Mabe
- 3i Nanotech, Inc., 2901 E. Gate City Blvd, Greensboro, North Carolina 27401, United States
| | - Mengxin Liu
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, North Carolina 27401, United States
| | - Panesun Tukur
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, North Carolina 27401, United States
| | - Jianjun Wei
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, North Carolina 27401, United States
- 3i Nanotech, Inc., 2901 E. Gate City Blvd, Greensboro, North Carolina 27401, United States
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2
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Sestaioni D, Giurlani W, Ciacci G, Camagni V, Palladino P, Barucci A, Scarano S. Sustainable and effective reconditioning of SPR gold chips functionalized with molecularly imprinted polynorepinephrine. Anal Chim Acta 2024; 1321:343037. [PMID: 39155096 DOI: 10.1016/j.aca.2024.343037] [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: 04/30/2024] [Revised: 07/09/2024] [Accepted: 07/28/2024] [Indexed: 08/20/2024]
Abstract
Surface Plasmon Resonance (SPR) technology has revolutionized the study of affinity-based biomolecular interactions, offering label-free and real-time analysis capabilities. However, traditional SPR gold chips have been viewed as disposable due to challenges in post-use reconditioning, leading to significant resource wastage and increased costs. To address this issue, we propose a novel approach utilizing polynorepinephrine-based (PNE) Molecularly Imprinted Bio-Polymers (MIBPs) as alternative receptors to conventional antibodies. Self-adhesive MIBPs do not require covalent immobilization. This enables efficient and rapid chip functionalization and post-use removal, facilitating multiple reuses of the plasmon source without compromising analytical performance. We conducted a thorough characterization and data analysis, confirming the robustness and repeatability of a single MIBP-functionalized chip for human IgG detection. 10 cycles of reconditioning and reuse, assayed by 60 kinetic calibrations, were performed. Our findings demonstrate the potential indefinite reuse of SPR chips facilitated by PNE MIBPs, with implications for streamlining test development and routine implementation in SPR biosensing applications. Therefore, they represent a sustainable solution to the longstanding challenge of disposable SPR gold chips also by reducing the reliance on animal-derived Abs for bioanalytic testing. Being also extremely low-cost and green, PNE-based MIBPs minimize the ecological footprint associated with traditional SPR assays. Overall, our work represents a significant advancement towards the development of reusable SPR biosensors. It promises a more sustainable and cost-effective future for biomedical research and diagnostic applications, with application on other transducers and bioanalytical platforms.
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Affiliation(s)
- Davide Sestaioni
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3-13, 50019, Sesto Fiorentino, Florence, Italy
| | - Walter Giurlani
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3-13, 50019, Sesto Fiorentino, Florence, Italy
| | - Giulia Ciacci
- Institute of Applied Physics "Nello Carrara", National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Florence, Italy
| | - Valentina Camagni
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Francesco Selmi, 2, 40126, Bologna, Italy; Department of Sciences of Antiquity, "La Sapienza" University of Rome, Piazzale Aldo Moro 5, 00185, Roma, RM, Italy
| | - Pasquale Palladino
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3-13, 50019, Sesto Fiorentino, Florence, Italy
| | - Andrea Barucci
- Institute of Applied Physics "Nello Carrara", National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Florence, Italy
| | - Simona Scarano
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3-13, 50019, Sesto Fiorentino, Florence, Italy.
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3
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Wang X, Xue J, Ma J, Wang H, Jia Q. Preparation of dual-functional epitope imprinted polymers for the enrichment of transferrin. J Chromatogr A 2024; 1730:465111. [PMID: 38936164 DOI: 10.1016/j.chroma.2024.465111] [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: 05/06/2024] [Revised: 06/11/2024] [Accepted: 06/20/2024] [Indexed: 06/29/2024]
Abstract
Transferrin (TRF), a glycoprotein involved in cellular iron uptake, is a potential target for the diagnosis and treatment of several diseases and cancers. Therefore, the identification and isolation of TRF is clinically important. In this work, we prepared magnetic molecularly imprinted polymers (EMIP) based on metal chelation using norepinephrine and 3-aminophenylboronic acid as functional monomers. The obtained EMIP shows excellent recognition of TRF with the adsorption capacity of 94.2 mg/g and imprinting factor of 3.50. In addition, EMIP was characterized by high specificity, good adsorption performance and stability, and was successfully used for the analysis of TRF in human serum. The present study provides a reliable scheme for targeted epitope imprinting of polymers with metal chelating and dual-functional monomers, showing great potential for biosample analysis.
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Affiliation(s)
- Xindi Wang
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Jiangshan Xue
- China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Jiutong Ma
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Hai Wang
- China-Japan Union Hospital of Jilin University, Changchun, 130033, China.
| | - Qiong Jia
- College of Chemistry, Jilin University, Changchun 130012, China.
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4
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Ranjbari F, Nosrat A, Fathi F, Mohammadzadeh A. Surface plasmon resonance biosensors for early troponin detection. Clin Chim Acta 2024; 558:118670. [PMID: 38582245 DOI: 10.1016/j.cca.2024.118670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Acute myocardial infarction (AMI) is one of the life-threatening causes that decrease blood flow to the heart, leading to increased mortality and related complications. Recently, the measure of blood concentration of cardiac biomarkers has been suggested to overcome the limitations of electrocardiography (ECG) analyses for early diagnosis of this disease. Troponins, especially cardiac troponin I and cardiac troponin T, with high sensitivity and specificity, are considered the gold standards in myocardial diagnosis. Recently, the use of new biosensors such as surface plasmon resonance (SPR) for early detection of these biomarkers has been greatly appreciated. Due to the rapid, sensitive, real-time, and label-free detection of SPR-based biosensors, they can be applied for selective and nonspecific absorption that is intended to be used as an in situ cardiac biosensor. Here, we exclusively discussed the updated developments of these valuable predictors for the possible occurrence of AMI detected by SPR.
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Affiliation(s)
- Faride Ranjbari
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Ali Nosrat
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Farzaneh Fathi
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Alireza Mohammadzadeh
- Department of Surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
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5
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Zhang X, Yarman A, Kovács N, Bognár Z, Gyurcsányi RE, Bier FF, Scheller FW. Specific features of epitope-MIPs and whole-protein MIPs as illustrated for AFP and RBD of SARS-CoV-2. Mikrochim Acta 2024; 191:242. [PMID: 38573524 DOI: 10.1007/s00604-024-06325-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 03/22/2024] [Indexed: 04/05/2024]
Abstract
Molecularly imprinted polymer (MIP) nanofilms for alpha-fetoprotein (AFP) and the receptor binding domain (RBD) of the spike protein of SARS-CoV-2 using either a peptide (epitope-MIP) or the whole protein (protein-MIP) as the template were prepared by electropolymerization of scopoletin. Conducting atomic force microscopy revealed after template removal and electrochemical deposition of gold a larger surface density of imprinted cavities for the epitope-imprinted polymers than when using the whole protein as template. However, comparable affinities towards the respective target protein (AFP and RBD) were obtained for both types of MIPs as expressed by the KD values in the lower nanomolar range. On the other hand, while the cross reactivity of both protein-MIPs towards human serum albumin (HSA) amounts to around 50% in the saturation region, the nonspecific binding to the respective epitope-MIPs is as low as that for the non-imprinted polymer (NIP). This effect might be caused by the different sizes of the imprinted cavities. Thus, in addition to the lower costs the reduced nonspecific binding is an advantage of epitope-imprinted polymers for the recognition of proteins.
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Affiliation(s)
- Xiaorong Zhang
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476, Potsdam, Germany.
| | - Aysu Yarman
- Molecular Biotechnology, Faculty of Science, Turkish-German University, Sahinkaya Cad. Beykoz, Istanbul, 34820, Turkey
| | - Norbert Kovács
- BME "Lendület" Chemical Nanosensors Research Group, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary
| | - Zsófia Bognár
- BME "Lendület" Chemical Nanosensors Research Group, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary
| | - Róbert E Gyurcsányi
- BME "Lendület" Chemical Nanosensors Research Group, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary
- HUN-REN-BME Computation Driven Chemistry Research Group, Műegyetem rkp. 3, 1111, Budapest, Hungary
| | - Frank F Bier
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476, Potsdam, Germany
| | - Frieder W Scheller
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476, Potsdam, Germany
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6
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Lim HJ, Saha T, Ooi CW. Site-specific imprinting of dengue virus non-structural 1 antigen on a polydopamine-based sensing film for early detection and prognosis of dengue. Talanta 2024; 268:125376. [PMID: 37951180 DOI: 10.1016/j.talanta.2023.125376] [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: 07/13/2023] [Revised: 10/06/2023] [Accepted: 10/30/2023] [Indexed: 11/13/2023]
Abstract
Serum levels of dengue virus (DENV) non-structural 1 (NS1) antigen can serve as a valuable prognostic indicator of severe dengue infections. A quartz crystal microbalance (QCM)-based biosensor with a biomimetic recognition element was designed to quantitatively detect DENV NS1 as an early disease biomarker. To mitigate the reliance on costly viral antigens during the molecular imprinting process, a synthetic peptide mimicking a DENV NS1 epitope was used as a surrogate template for the synthesis of an epitope-imprinted polydopamine (EMIPDA) sensing film on the biosensor surface. The maximal frequency shift for DENV NS1 was obtained with an EMIPDA film synthesised using 5 mg mL-1 of dopamine monomer and 0.5 mg mL-1 of peptide template. The EMIPDA-QCM biosensor achieved low detection and quantitation limits of 0.091 μg mL-1 and 0.436 μg mL-1, respectively, allowing acute-phase detection of dengue and prognosis of the disease progression. The EMIPDA-QCM biosensor exhibited remarkable selectivity with up to 68-fold larger frequency responses towards DENV NS1 compared to a major serum protein. The site-specific imprinting approach not only enhanced the biosensing performance but also enabled a 26-fold cost reduction for biosensor functionalisation, providing a cost-effective strategy for label-free biosensing of the dengue biomarker via the biopolymer film.
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Affiliation(s)
- Hui Jean Lim
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Tridib Saha
- Department of Electrical and Robotics Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Chien Wei Ooi
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia; Advanced Engineering Platform, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia; Tropical Medicine and Biology Platform, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia.
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7
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Zhang X, Yarman A, Bagheri M, El-Sherbiny IM, Hassan RYA, Kurbanoglu S, Waffo AFT, Zebger I, Karabulut TC, Bier FF, Lieberzeit P, Scheller FW. Imprinted Polymers on the Route to Plastibodies for Biomacromolecules (MIPs), Viruses (VIPs), and Cells (CIPs). ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2024; 187:107-148. [PMID: 37884758 DOI: 10.1007/10_2023_234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Around 30% of the scientific papers published on imprinted polymers describe the recognition of proteins, nucleic acids, viruses, and cells. The straightforward synthesis from only one up to six functional monomers and the simple integration into a sensor are significant advantages as compared with enzymes or antibodies. Furthermore, they can be synthesized against toxic substances and structures of low immunogenicity and allow multi-analyte measurements via multi-template synthesis. The affinity is sufficiently high for protein biomarkers, DNA, viruses, and cells. However, the cross-reactivity of highly abundant proteins is still a challenge.
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Affiliation(s)
- Xiaorong Zhang
- Institute for Biochemistry and Biology, Universität Potsdam, Potsdam, Germany
| | - Aysu Yarman
- Molecular Biotechnology, Faculty of Science, Turkish-German University, Istanbul, Turkey
| | - Mahdien Bagheri
- Department of Physical Chemistry, Faculty for Chemistry, University of Vienna, Vienna, Austria
| | - Ibrahim M El-Sherbiny
- Nanoscience Program, University of Science and Technology (UST), Zewail City of Science and Technology, Giza, Egypt
- Center for Materials Science (CMS), Zewail City of Science and Technology, Giza, Egypt
| | - Rabeay Y A Hassan
- Nanoscience Program, University of Science and Technology (UST), Zewail City of Science and Technology, Giza, Egypt
- Center for Materials Science (CMS), Zewail City of Science and Technology, Giza, Egypt
| | - Sevinc Kurbanoglu
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | | | - Ingo Zebger
- Institut für Chemie, PC 14 Technische Universität Berlin, Berlin, Germany
| | | | - Frank F Bier
- Institute for Biochemistry and Biology, Universität Potsdam, Potsdam, Germany
| | - Peter Lieberzeit
- Department of Physical Chemistry, Faculty for Chemistry, University of Vienna, Vienna, Austria.
| | - Frieder W Scheller
- Institute for Biochemistry and Biology, Universität Potsdam, Potsdam, Germany.
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8
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Battaglia F, Torrini F, Palladino P, Scarano S, Minunni M. Serotonin: A new super effective functional monomer for molecular imprinting. The case of TNF-α detection in real matrix by Surface Plasmon Resonance. Biosens Bioelectron 2023; 242:115713. [PMID: 37801835 DOI: 10.1016/j.bios.2023.115713] [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: 07/03/2023] [Revised: 09/07/2023] [Accepted: 09/26/2023] [Indexed: 10/08/2023]
Abstract
Molecular imprinting and related technologies are becoming increasingly appreciated in bioanalysis and diagnostic applications. Among the imprinted polymers, we have already demonstrated that the endogenous neurotransmitters (NTs) dopamine (DA) and norepinephrine (NE) can be efficiently used as natural and sustainable monomers to straightforwardly design and synthesize a new generation of green and "soft" Molecularly Imprinted BioPolymers (MIBPs). Here, we demonstrated for the first time the ability of a further NT, i.e., serotonin (SE), in forming adhesive imprinted nanofilms coupled to label-free optical biosensing. Its imprinting efficiency is compared with those obtained with PDA and PNE. As a model study, tumor necrosis factor-alpha (TNF-α) was selected as a biomolecular target of interest in clinical diagnostics. The biomimetic receptor was coupled to Surface Plasmon Resonance (SPR), and TNF-α detection was performed in label-free and real-time manner both in buffer and biological matrices, i.e. synovial fluid and human serum. The results indicate that, under the same imprinting and binding conditions, the analytical performances of PSE are impressively superior to those of PDA and PNE. The PSE-based MIBP was able to detect TNF-α in human matrices with a good sensitivity, selectivity, and repeatability.
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Affiliation(s)
- Federica Battaglia
- Department of Chemistry "Ugo Schiff', University of Florence, 50019, Sesto Fiorentino, FI, Italy.
| | - Francesca Torrini
- Department of Chemistry and Applied Biosciences, ETH Zurich, Ramistrasse 101, 8092, Zurich, Switzerland.
| | - Pasquale Palladino
- Department of Chemistry "Ugo Schiff', University of Florence, 50019, Sesto Fiorentino, FI, Italy.
| | - Simona Scarano
- Department of Chemistry "Ugo Schiff', University of Florence, 50019, Sesto Fiorentino, FI, Italy.
| | - Maria Minunni
- Department of Chemistry "Ugo Schiff', University of Florence, 50019, Sesto Fiorentino, FI, Italy.
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Gurukandure A, Somasundaram S, Kurian ASN, Khuda N, Easley CJ. Building a Nucleic Acid Nanostructure with DNA-Epitope Conjugates for a Versatile Approach to Electrochemical Protein Detection. Anal Chem 2023; 95:18122-18129. [PMID: 38032341 PMCID: PMC10720615 DOI: 10.1021/acs.analchem.3c03512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 12/01/2023]
Abstract
The recent surge of effort in nucleic-acid-based electrochemical (EC) sensors has been fruitful, yet there remains a need for more generalizable EC platforms for sensing multiple classes of clinically relevant targets. We recently reported a nucleic acid nanostructure for simple, economical, and more generalizable EC readout of a range of analytes, including small molecules, peptides, proteins, and antibodies. The nanostructure is built through on-electrode enzymatic ligation of three oligonucleotides for attachment, binding, and signaling. However, the generalizable detection of larger proteins remains a challenge. Here, we adapted the sensor to quantify larger proteins in a more generic manner through conjugating the protein's minimized antibody-binding epitope to the central DNA strand. This concept was verified using creatine kinase (CK-MM), a biomarker of muscle damage and several disorders for which rapid clinical sensing is important. DNA-epitope conjugates permitted a competitive immunoassay for the CK protein at the electrode via square-wave voltammetry (SWV). Sensing through a signal-off mechanism, the anti-CK antibody limit of detection (LOD) was 5 nM with a response time as low as 3 min. Antibody displacement by native protein analytes gave a signal-on response with the CK sensing range from the LOD of 14 nM up to 100 nM, overlapping with the normal (nonelevated) human clinical range (3-37 nM), and the sensor was validated in 98% human serum. While a need for improved DNA-epitope conjugate purification was identified, overall, this approach allows the quantification of a generic protein- or peptide-binding antibody and should facilitate future quantitative EC readouts of clinically relevant proteins that were previously inaccessible to EC techniques.
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Affiliation(s)
- Asanka Gurukandure
- Department of Chemistry and
Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Subramaniam Somasundaram
- Department of Chemistry and
Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Amanda S. N. Kurian
- Department of Chemistry and
Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Niamat Khuda
- Department of Chemistry and
Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Christopher J. Easley
- Department of Chemistry and
Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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Nejati-Koshki K, Fathi F, Arabzadeh A, Mohammadzadeh A. Biomarkers and optical based biosensors in cardiac disease detection: early and accurate diagnosis. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:5441-5458. [PMID: 37814547 DOI: 10.1039/d3ay01414b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Rapid and precise detection methods for the early-stage detection of cardiovascular irregularities are crucial to stopping and reducing their development. Cardiovascular diseases (CVDs) are the leading cause of death in the world. Hence, cardiac-related biomarkers are essential for monitoring and managing of process. The necessity for biomarker detection has significantly widened the field of biosensor development. Bio-sensing methods offer rapid detection, low cost, sensitivity, portability, and selectivity in the development of devices for biomarker detection. For the prediction of cardiovascular diseases, some biomarkers can be used, like C-reactive protein (CRP), troponin I or T, creatine kinase (CK-MB), B-type natriuretic peptide (BNP), myoglobin (Mb), suppression of tumorigenicity 2 protein (ST2) and galectin-3 (Gal3). In this review, recent research studies were covered for gaining insight into utilizing optical-based biosensors, including surface plasmon resonance (SPR), photonic crystals (PCs), fluorescence-based techniques, fiber optics, and also Raman spectroscopy biosensors for the ultrasensitive detection of cardiac biomarkers. The main goal of this review is to focus on the improvement of optical biosensors in the future for the diagnosis of heart diseases and to discuss how to enhance their properties for use in medicine. Some main data from each study reviewed are emphasized, including the CVD biomarkers and the response range of the optical-based devices and biosensors.
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Affiliation(s)
- Kazem Nejati-Koshki
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Farzaneh Fathi
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - AmirAhmad Arabzadeh
- Department of Surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
| | - Alireza Mohammadzadeh
- Department of Surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
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11
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Cabaleiro-Lago C, Hasterok S, Gjörloff Wingren A, Tassidis H. Recent Advances in Molecularly Imprinted Polymers and Their Disease-Related Applications. Polymers (Basel) 2023; 15:4199. [PMID: 37959879 PMCID: PMC10649583 DOI: 10.3390/polym15214199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023] Open
Abstract
Molecularly imprinted polymers (MIPs) and the imprinting technique provide polymeric material with recognition elements similar to natural antibodies. The template of choice (i.e., the antigen) can be almost any type of smaller or larger molecule, protein, or even tissue. There are various formats of MIPs developed for different medical purposes, such as targeting, imaging, assay diagnostics, and biomarker detection. Biologically applied MIPs are widely used and currently developed for medical applications, and targeting the antigen with MIPs can also help in personalized medicine. The synthetic recognition sites of the MIPs can be tailor-made to function as analytics, diagnostics, and drug delivery systems. This review will cover the promising clinical applications of different MIP systems recently developed for disease diagnosis and treatment.
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Affiliation(s)
- Celia Cabaleiro-Lago
- Department of Bioanalysis, Faculty of Natural Sciences, Kristianstad University, 291 39 Kristianstad, Sweden; (C.C.-L.); (H.T.)
| | - Sylwia Hasterok
- Department of Biomedical Sciences, Faculty of Health and Society, Malmö University, 205 06 Malmö, Sweden;
- Biofilms-Research Center for Biointerfaces, Malmö University, 205 06 Malmö, Sweden
| | - Anette Gjörloff Wingren
- Department of Bioanalysis, Faculty of Natural Sciences, Kristianstad University, 291 39 Kristianstad, Sweden; (C.C.-L.); (H.T.)
- Department of Biomedical Sciences, Faculty of Health and Society, Malmö University, 205 06 Malmö, Sweden;
- Biofilms-Research Center for Biointerfaces, Malmö University, 205 06 Malmö, Sweden
| | - Helena Tassidis
- Department of Bioanalysis, Faculty of Natural Sciences, Kristianstad University, 291 39 Kristianstad, Sweden; (C.C.-L.); (H.T.)
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12
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Wei H, Wang Z, Wang Y, Ma J, Chen Y, Guo M, Li Y, Du Y, Hu F. Detection of depression marker ASS1 in urine by gold nanoparticles based dual epitope-peptides imprinted sensor. Anal Chim Acta 2023; 1273:341479. [PMID: 37423651 DOI: 10.1016/j.aca.2023.341479] [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: 02/21/2023] [Revised: 05/03/2023] [Accepted: 06/02/2023] [Indexed: 07/11/2023]
Abstract
Trace detection of argininosuccinate synthetase 1 (ASS1), a depression marker, in urine samples is difficult to achieve. In this work, a dual-epitope-peptides imprinted sensor for ASS1 detection in urine was constructed based on the high selectivity and sensitivity of the "epitope imprinting approach". First, two cysteine-modified epitope-peptides were immobilized onto gold nanoparticles (AuNPs) deposited on a flexible electrode (ITO-PET) by gold-sulfur bonds (Au-S), then a controlled electropolymerization of dopamine was carried out to imprint the epitope peptides. After removing epitope-peptides, the dual-epitope-peptides imprinted sensor (MIP/AuNPs/ITO-PET) which with multiple binding sites for ASS1 was obtained. Compared with single epitope-peptide, dual-epitope-peptides imprinted sensor had higher sensitivity, which presented a linear range from 0.15 to 6000 pg ml-1 with a low limit of detection (LOD = 0.106 pg mL-1, S/N = 3). It had good reproducibility (RSD = 1.74%), repeatability (RSD = 3.60%), stability (RSD = 2.98%), and good selectivity, and the sensor had good recovery (92.4%-99.0%) in urine samples. This is the first highly sensitive and selective electrochemical assay for the depression marker ASS1 in urine, which is expected to provide help for the non-invasive and objective diagnosis of depression.
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Affiliation(s)
- Hong Wei
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Zixia Wang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China; Codonopsis Radix Industrial Technology Engineering Research Center, Gansu Province, Lanzhou, Gansu, 730000, China
| | - Yanping Wang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China; State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, China; Codonopsis Radix Industrial Technology Engineering Research Center, Gansu Province, Lanzhou, Gansu, 730000, China
| | - Jing Ma
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Yan Chen
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Min Guo
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China; Codonopsis Radix Industrial Technology Engineering Research Center, Gansu Province, Lanzhou, Gansu, 730000, China
| | - Yuanyuan Li
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Yongling Du
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Fangdi Hu
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China; State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, China; Codonopsis Radix Industrial Technology Engineering Research Center, Gansu Province, Lanzhou, Gansu, 730000, China.
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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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14
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He JY, Xu HX, Li Q, Zheng QY, Wang CZ, Zhou LD, Luo L, Zhang QH, Yuan CS. Specific capture and determination of glycoprotein using a hybrid epitopes and monomers-mediated molecular-imprinted polymer enzyme-free electrochemical biosensor. Mikrochim Acta 2023; 190:118. [PMID: 36884097 DOI: 10.1007/s00604-023-05651-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 01/05/2023] [Indexed: 03/09/2023]
Abstract
A novel molecular-imprinted polymer (MIP)-based enzyme-free biosensor was created for the selective detection of glycoprotein transferrin (Trf). For this purpose, MIP-based biosensor for Trf was prepared by electrochemical co-polymerization of novel hybrid monomers 3-aminophenylboronic acid (M-APBA) and pyrrole on a glassy carbon electrode (GCE) modified with carboxylated multi-walled carbon nanotubes (cMWCNTs). Hybrid epitopes of Trf (C-terminal fragment and glycan) have been selected as templates. The produced sensor exhibited great selective recognition ability toward Trf under optimal preparation conditions, offering good analytical range (0.125-1.25 μM) with a detection limit of 0.024 μM. The proposed hybrid epitope in combination with hybrid monomer-mediated imprinting strategy was successfully applied to detect Trf in spiked human serum samples, with recoveries and relative standard deviations ranging from 94.7 to 106.0% and 2.64 to 5.32%, respectively. This study provided a reliable protocol for preparing hybrid epitopes and monomers-mediated MIP for the synergistic and effective determination of glycoprotein in complicated biological samples.
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Affiliation(s)
- Jia-Yuan He
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Hui-Xian Xu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Qin Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Qin-Yue Zheng
- Chongqing Institute for Food and Drug Control, Chongqing, 401121, China
| | - Chong-Zhi Wang
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL, 60637, USA
| | - Lian-Di Zhou
- Basic Medical College, Chongqing Medical University, Chongqing, 400016, China.
| | - Ling Luo
- Chongqing Cancer Institute, Chongqing University Cancer Hospital, Chongqing, 400030, China.
| | - Qi-Hui Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China. .,Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL, 60637, USA.
| | - Chun-Su Yuan
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL, 60637, USA
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15
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A LysLysLys-tag as trigger in polynorepinephrine epitope imprinting: The case study of soluble PD-L1 detection in serum by optical-based sensing. Biosens Bioelectron 2023; 220:114806. [DOI: 10.1016/j.bios.2022.114806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 09/27/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022]
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16
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Battaglia F, Bonelli F, Sgorbini M, Intorre L, Minunni M, Scarano S, Meucci V. Molecularly imprinted polymers as effective capturing receptors in a pseudo-ELISA immunoassay for procalcitonin detection in veterinary species. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 15:27-35. [PMID: 36484203 DOI: 10.1039/d2ay01175a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In this study, a new sandwich-type immunoenzymatic assay, based on a molecularly imprinted polymer (MIP) as an artificial antibody (pseudo-ELISA), was developed for the determination of procalcitonin (PCT) in veterinary species. The quantification of PCT in human medicine represents the state of the art for the diagnosis of sepsis; instead the clinical studies on the relevance of PCT as a sepsis predictor in veterinary patients are few, likely due to the total absence of validated assays. MIPs have been widely used as antibody mimics for important applications, and MIP-based sandwich assays have emerged as promising analytical tools for the detection of disease biomarkers. Herein, a polynorepinephrine (PNE)-based imprinted film was directly synthesized on the well surface of a 96-well plate. Subsequently, based on a commercial ELISA kit, the PCT quantification was accomplished via a colorimetric sandwich assay by replacing the capture antibody of the kit with the PNE-based MIP. This method was performed to detect canine and equine PCT in buffer and in plasma samples. Under optimal conditions, the results obtained in plasma samples showed a limit of detection (LOD) of 5.87 ng mL-1 and a reproducibility (CVav%) of 10.0% for canine samples, while a LOD = 4.46 ng mL-1 and CVav% = 7.61% were obtained for equine samples.
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Affiliation(s)
- Federica Battaglia
- Department of Chemistry "Ugo Schiff", University of Florence, 50019 Sesto Fiorentino, FI, Italy.
- Department of Veterinary Science, University of Pisa, 56122 Via Livornese, PI, Italy.
| | - Francesca Bonelli
- Department of Veterinary Science, University of Pisa, 56122 Via Livornese, PI, Italy.
| | - Micaela Sgorbini
- Department of Veterinary Science, University of Pisa, 56122 Via Livornese, PI, Italy.
| | - Luigi Intorre
- Department of Veterinary Science, University of Pisa, 56122 Via Livornese, PI, Italy.
| | - Maria Minunni
- Department of Chemistry "Ugo Schiff", University of Florence, 50019 Sesto Fiorentino, FI, Italy.
| | - Simona Scarano
- Department of Chemistry "Ugo Schiff", University of Florence, 50019 Sesto Fiorentino, FI, Italy.
| | - Valentina Meucci
- Department of Veterinary Science, University of Pisa, 56122 Via Livornese, PI, Italy.
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17
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Zhang X, Waffo AT, Yarman A, Kovács N, Bognár Z, Wollenberger U, El-Sherbiny IM, Hassan RYA, Bier FF, Gyurcsányi RE, Zebger I, Scheller FW. How an ACE2 mimicking epitope-MIP nanofilm recognizes template-related peptides and the receptor binding domain of SARS-CoV-2. NANOSCALE 2022; 14:18106-18114. [PMID: 36448745 DOI: 10.1039/d2nr03898f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Here we aim to gain a mechanistic understanding of the formation of epitope-imprinted polymer nanofilms using a non-terminal peptide sequence, i.e. the peptide GFNCYFP (G485 to P491) of the SARS-CoV-2 receptor binding domain (RBD). This epitope is chemisorbed on the gold surface through the central cysteine 488 followed by the electrosynthesis of a ∼5 nm thick polyscopoletin film around the surface confined templates. The interaction of peptides and the parent RBD and spike protein with the imprinted polyscopoletin nanofilm was followed by electrochemical redox marker gating, surface enhanced infrared absorption spectroscopy and conductive AFM. Because the use of non-terminal epitopes is especially intricate, here we characterize the binding pockets through their interaction with 5 peptides rationally derived from the template sequence, i.e. implementing central single amino acid mismatch as well as elongations and truncations at its C- and N- termini. Already a single amino acid mismatch, i.e. the central Cys488 substituted by a serine, results in ca. 15-fold lower affinity. Further truncation of the peptides to tetrapeptide (EGFN) and hexapeptide (YFPLQS) results also in a significantly lower affinity. We concluded that the affinity towards the different peptides is mainly determined by the four amino acid motif CYFP present in the sequence of the template peptide. A higher affinity than that for the peptides is found for the parent proteins RBD and spike protein, which seems to be due to out of cavity effects caused by their larger footprint on the nanofilm surface.
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Affiliation(s)
- Xiaorong Zhang
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476 Potsdam, Germany.
| | - Armel T Waffo
- Institut für Chemie, PC 14 Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Aysu Yarman
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476 Potsdam, Germany.
- Molecular Biotechnology, Faculty of Science, Turkish-German University, Sahinkaya Cad, 86, Beykoz, Istanbul 34820, Turkey
| | - Norbert Kovács
- Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary.
| | - Zsófia Bognár
- Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary.
- ELKH-BME Computation Driven Chemistry Research Group, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Ulla Wollenberger
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476 Potsdam, Germany.
| | - Ibrahim M El-Sherbiny
- Nanoscience Program, University of Science and Technology (UST) & Center for Materials Science (CMS), Zewail City of Science and Technology, Giza 12578, Egypt
| | - Rabeay Y A Hassan
- Nanoscience Program, University of Science and Technology (UST) & Center for Materials Science (CMS), Zewail City of Science and Technology, Giza 12578, Egypt
| | - Frank F Bier
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476 Potsdam, Germany.
| | - Róbert E Gyurcsányi
- Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary.
- ELKH-BME Computation Driven Chemistry Research Group, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Ingo Zebger
- Institut für Chemie, PC 14 Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Frieder W Scheller
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476 Potsdam, Germany.
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18
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Torrini F, Battaglia F, Palladino P, Scarano S, Minunni M. Imprinted biopolymers as green abiotic route in immunoglobulin affinity plasmonic sensing. Biosens Bioelectron 2022; 217:114706. [PMID: 36116223 DOI: 10.1016/j.bios.2022.114706] [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: 08/03/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/27/2022]
Abstract
The relentless research in material science is pushing towards sustainable building blocks, which may be exploited in the molecularly imprinting technology, a potentially ground-breaking tool for producing affinity mimetic receptors. In this scenario, we report and characterize a novel polynorepinephrine (PNE)-based mimetic for IgG detection, biomolecules of utmost clinical interest, coupled to a label-free and real-time sensing based on Surface Plasmon Resonance (SPR). A "molecular walk" around the Y-shaped IgG structure is performed to select small peptide portions to be used as templates during the epitope imprinting process. For real-time diagnosis, the mimetic receptor is integrated into SPR sensing platform, to directly target the IgG both in standard solutions and human serum specimens using the standard addition method. The designed platform is characterized in terms of binding kinetic/affinity parameters and analytical figures of merit, (selectivity, repeatability, limit of detection and quantification, namely 0.90 ± 0.02 μg mL-1 and 3.01 ± 0.07 μg mL-1, respectively), displaying excellent promising outcomes also when the material is subjected to thermal stress. Comprehensively, the excellent analytical performances of the MIP-based SPR sensing and the well-known versatility of such biopolymer encourage the further development of serological point-of-care testing for IgG antibodies detection.
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Affiliation(s)
- Francesca Torrini
- Department of Chemistry "Ugo Schiff', University of Florence, 50019 Sesto Fiorentino (FI), Italy.
| | - Federica Battaglia
- Department of Chemistry "Ugo Schiff', University of Florence, 50019 Sesto Fiorentino (FI), Italy
| | - Pasquale Palladino
- Department of Chemistry "Ugo Schiff', University of Florence, 50019 Sesto Fiorentino (FI), Italy
| | - Simona Scarano
- Department of Chemistry "Ugo Schiff', University of Florence, 50019 Sesto Fiorentino (FI), Italy
| | - Maria Minunni
- Department of Chemistry "Ugo Schiff', University of Florence, 50019 Sesto Fiorentino (FI), Italy.
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Ishino K, Nishitani S, Man Y, Saito A, Sakata T. Surface Characteristics and Formation of Polyserotonin Thin Films for Bioelectrical and Biocompatible Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8633-8642. [PMID: 35776885 DOI: 10.1021/acs.langmuir.2c01045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this study, we examined the fundamental surface characteristics of a polyserotonin (pST) film, which is attractive as a bioelectrical and biocompatible interface of biosensors. The pST film can easily be modified on electrode materials such as Au by self-polymerization and electropolymerization. By a simple cytotoxicity test using nonadhesive living cells, we found that the pST film is biocompatible for culturing cells on it. This finding is also supported by the fact that the surface tension of the pST film is moderate for protein adsorptions. The pST film is thinner and smoother than a poly-dopamine film, the chemical structure of which is similar to that of the pST film, depending on the polymerization time, cycle, and temperature; thus, ST as the main monomer can facilitate the precise control of the thickness and roughness of functional polymer membranes on the nanometer order. In addition, the pST film is useful as a relatively insulative interface for preventing interfering species from approaching electrode surfaces without their nonspecific adsorption, depending on the surface charges of the pST film in solutions of different pHs. The formation of the pST film self-polymerized on electrode materials is derived from the adsorption of pST nanoparticles formed by oxidative polymerization under basic conditions; therefore, the process of pST film formation should be considered in the functionalization of the pST film as a bioelectrical interface that allows biomolecular recognition (e.g., molecularly imprinted polymer membrane) for its application to wearable and biocompatible biosensors.
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Affiliation(s)
- Kanako Ishino
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shoichi Nishitani
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Youyuan Man
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Akiko Saito
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Toshiya Sakata
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Campu A, Muresan I, Craciun AM, Cainap S, Astilean S, Focsan M. Cardiac Troponin Biosensor Designs: Current Developments and Remaining Challenges. Int J Mol Sci 2022; 23:ijms23147728. [PMID: 35887073 PMCID: PMC9318943 DOI: 10.3390/ijms23147728] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/09/2022] [Accepted: 07/12/2022] [Indexed: 01/27/2023] Open
Abstract
Acute myocardial infarction (AMI) is considered as one of the main causes of death, threating human lives for decades. Currently, its diagnosis relies on electrocardiography (ECG), which has been proven to be insufficient. In this context, the efficient detection of cardiac biomarkers was proposed to overcome the limitations of ECG. In particular, the measurement of troponins, specifically cardiac troponin I (cTnI) and cardiac troponin T (cTnT), has proven to be superior in terms of sensitivity and specificity in the diagnosis of myocardial damage. As one of the most life-threatening conditions, specific and sensitive investigation methods that are fast, universally available, and cost-efficient to allow for early initiation of evidence-based, living-saving treatment are desired. In this review, we aim to present and discuss the major breakthroughs made in the development of cTnI and cTnT specific biosensor designs and analytical tools, highlighting the achieved progress as well as the remaining challenges to reach the technological goal of simple, specific, cheap, and portable testing chips for the rapid and efficient on-site detection of cardiac cTnI/cTnT biomarkers in order to diagnose and treat cardiovascular diseases at an incipient stage.
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Affiliation(s)
- Andreea Campu
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania; (A.C.); (I.M.); (A.-M.C.); (S.A.)
| | - Ilinca Muresan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania; (A.C.); (I.M.); (A.-M.C.); (S.A.)
| | - Ana-Maria Craciun
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania; (A.C.); (I.M.); (A.-M.C.); (S.A.)
| | - Simona Cainap
- Department of Pediatric Cardiology, Pediatric Clinic 2, Emergency County Hospital for Children, Crisan No. 3-5, 400124 Cluj-Napoca, Romania;
- Department of Mother & Child, Iuliu Hatieganu University of Medicine and Pharmacology, Louis Pasteur No. 4, 400349 Cluj-Napoca, Romania
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania; (A.C.); (I.M.); (A.-M.C.); (S.A.)
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, Mihail Kogalniceanu No. 1, 400084 Cluj-Napoca, Romania
| | - Monica Focsan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, 400271 Cluj-Napoca, Romania; (A.C.); (I.M.); (A.-M.C.); (S.A.)
- Correspondence: ; Tel.: +40-264-454-554 (ext. 116)
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21
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Torrini F, Caponi L, Bertolini A, Palladino P, Cipolli F, Saba A, Paolicchi A, Scarano S, Minunni M. A biomimetic enzyme-linked immunosorbent assay (BELISA) for the analysis of gonadorelin by using molecularly imprinted polymer-coated microplates. Anal Bioanal Chem 2022; 414:5423-5434. [PMID: 35028691 PMCID: PMC9242967 DOI: 10.1007/s00216-021-03867-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/30/2021] [Accepted: 12/23/2021] [Indexed: 12/20/2022]
Abstract
An original biomimetic enzyme-linked immunoassay (BELISA) to target the small peptide hormone gonadorelin is presented. This peptide has been recently listed among the substances banned in sports by the World Antidoping Agency (WADA) since its misuse by male athletes triggers testosterone increase. Hence, in response to this emerging issue in anti-doping controls, we proposed BELISA which involves the growth of a polynorepinephrine (PNE)-based molecularly imprinted polymer (MIP) directly on microwells. PNE, a polydopamine (PDA) analog, has recently displayed impressive performances when it was exploited for MIP preparation, giving even better results than PDA. Gonadorelin quantification was accomplished via a colorimetric indirect competitive bioassay involving the competition between biotinylated gonadorelin linked to the signal reporter and the unlabeled analyte. These compete for the same MIP binding sites resulting in an inverse correlation between gonadorelin concentration and the output color signal (λ = 450 nm). A detection limit of 277 pmol L-1 was achieved with very good reproducibility in standard solutions (avCV% = 4.07%) and in urine samples (avCV% = 5.24%). The selectivity of the assay resulted adequate for biological specimens and non-specific control peptides. In addition, the analytical figures of merit were successfully validated by mass spectrometry, the reference anti-doping benchtop platform for the analyte. BELISA was aimed to open real perspectives for PNE-based MIPs as alternatives to antibodies, especially when the target analyte is a poorly or non-immunogenic small molecule, such as gonadorelin. Biomimetic enzyme-linked immunosorbent assay (BELISA).
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Affiliation(s)
- Francesca Torrini
- Department of Chemistry 'Ugo Schiff', University of Florence, Sesto Fiorentino (FI), Italy
| | - Laura Caponi
- Laboratory of Clinical Pathology, University Hospital of Pisa, Pisa, Italy
| | - Andrea Bertolini
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Pasquale Palladino
- Department of Chemistry 'Ugo Schiff', University of Florence, Sesto Fiorentino (FI), Italy
| | - Francesca Cipolli
- Laboratory of Clinical Pathology, University Hospital of Pisa, Pisa, Italy
| | - Alessandro Saba
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Aldo Paolicchi
- Laboratory of Clinical Pathology, University Hospital of Pisa, Pisa, Italy
| | - Simona Scarano
- Department of Chemistry 'Ugo Schiff', University of Florence, Sesto Fiorentino (FI), Italy.
| | - Maria Minunni
- Department of Chemistry 'Ugo Schiff', University of Florence, Sesto Fiorentino (FI), Italy.
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22
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Lim HJ, Saha T, Tey BT, Tan WS, Hassan SS, Ooi CW. Quartz crystal microbalance-based biosensing of hepatitis B antigen using a molecularly imprinted polydopamine film. Talanta 2022; 249:123659. [PMID: 35728452 DOI: 10.1016/j.talanta.2022.123659] [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: 03/23/2022] [Revised: 05/31/2022] [Accepted: 06/03/2022] [Indexed: 10/31/2022]
Abstract
Quartz crystal microbalance (QCM)-based biosensors are highly attractive as rapid diagnostic devices for detecting infectious diseases. However, the fabrication of QCM-based biosensors often involves tedious processes due to the poor stability of the biological recognition elements. In this work, the simple self-polymerisation of dopamine was used to functionalise the QCM crystal surface with a molecularly imprinted polydopamine (MIPDA) sensing film for detecting the hepatitis B core antigen (HBcAg), a serological biomarker of hepatitis B. Recognition cavities that complemented the size and shape of HBcAg were observed on the QCM crystal surface after functionalisation with the MIPDA film. The MIPDA-QCM biosensor showed a selective affinity for HBcAg, recording frequency responses up to 7.8 folds larger towards HBcAg compared to human serum albumin at the same analyte concentrations. The biosensor response was enhanced by using the optimal concentrations of 10 mg mL-1 of dopamine and 1 mg mL-1 of template for MIPDA film formation, resulting in a low detection limit (0.88 μg mL-1) that enables the detection of clinically relevant titres of HBcAg. The detection process could be completed within 10 min after sample loading without additional steps for signal amplification, highlighting the practical advantages of the MIPDA-QCM biosensor for point-of-care detection of hepatitis B.
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Affiliation(s)
- Hui Jean Lim
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
| | - Tridib Saha
- Electrical and Computer Systems Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
| | - Beng Ti Tey
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia; Advanced Engineering Platform, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
| | - Wen Siang Tan
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Laboratory of Vaccine and Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Sharifah Syed Hassan
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia; Tropical Medicine and Biology Platform, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
| | - Chien Wei Ooi
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia; Advanced Engineering Platform, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia; Tropical Medicine and Biology Platform, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia.
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23
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Palladino P, Papi F, Minunni M, Nativi C, Scarano S. Structurally Constrained MUC1-Tn Mimetic Antigen as Template for Molecularly Imprinted Polymers (MIPs): A Promising Tool for Cancer Diagnostics. Chempluschem 2022; 87:e202200068. [PMID: 35502851 DOI: 10.1002/cplu.202200068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/18/2022] [Indexed: 12/24/2022]
Abstract
Abnormal glycoconjugates have distinctly been recognized as potential biomarkers for cancer diagnosis. A great deal of attention has been focused on Tn antigen, an oversimplified mucin-1 O-glycan, over-expressed in different cancers. Herein, we investigate the possibility to replace the use of anti-Tn monoclonal antibodies with an innovative class of catecholamine-based Molecularly Imprinted Polymers (MIPs), emerging in recent years as promising tools for bioanalytical applications. MIPs are synthetic receptors characterized by high sensitivity and specificity towards the imprinted target. Here, original polynorepinephrine-based MIPs coupled to Surface Plasmon Resonance biosensing for Tn antigen recognition are reported. We have verified the imprinting and binding capacity of these MIPs towards very small antigenic entities, represented by the natural Tn antigen and the TnThr mimetic 1 (conjugated to BSA or linked to a MUC1 hexapeptide analogue), and compared the biosensor performances with an anti-Tn monoclonal antibody. The results clearly display the effectiveness of the pursued imprinting strategies.
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Affiliation(s)
- Pasquale Palladino
- Department of Chemistry, DICUS, University of Florence, via della Lastruccia 3-13, 50019, Sesto F.no (FI), Italy
| | - Francesco Papi
- Department of Chemistry, DICUS, University of Florence, via della Lastruccia 3-13, 50019, Sesto F.no (FI), Italy
| | - Maria Minunni
- Department of Chemistry, DICUS, University of Florence, via della Lastruccia 3-13, 50019, Sesto F.no (FI), Italy
| | - Cristina Nativi
- Department of Chemistry, DICUS, University of Florence, via della Lastruccia 3-13, 50019, Sesto F.no (FI), Italy
| | - Simona Scarano
- Department of Chemistry, DICUS, University of Florence, via della Lastruccia 3-13, 50019, Sesto F.no (FI), Italy
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24
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Park R, Jeon S, Jeong J, Park SY, Han DW, Hong SW. Recent Advances of Point-of-Care Devices Integrated with Molecularly Imprinted Polymers-Based Biosensors: From Biomolecule Sensing Design to Intraoral Fluid Testing. BIOSENSORS 2022; 12:136. [PMID: 35323406 PMCID: PMC8946830 DOI: 10.3390/bios12030136] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/16/2022] [Accepted: 02/21/2022] [Indexed: 05/11/2023]
Abstract
Recent developments of point-of-care testing (POCT) and in vitro diagnostic medical devices have provided analytical capabilities and reliable diagnostic results for rapid access at or near the patient's location. Nevertheless, the challenges of reliable diagnosis still remain an important factor in actual clinical trials before on-site medical treatment and making clinical decisions. New classes of POCT devices depict precise diagnostic technologies that can detect biomarkers in biofluids such as sweat, tears, saliva or urine. The introduction of a novel molecularly imprinted polymer (MIP) system as an artificial bioreceptor for the POCT devices could be one of the emerging candidates to improve the analytical performance along with physicochemical stability when used in harsh environments. Here, we review the potential availability of MIP-based biorecognition systems as custom artificial receptors with high selectivity and chemical affinity for specific molecules. Further developments to the progress of advanced MIP technology for biomolecule recognition are introduced. Finally, to improve the POCT-based diagnostic system, we summarized the perspectives for high expandability to MIP-based periodontal diagnosis and the future directions of MIP-based biosensors as a wearable format.
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Affiliation(s)
- Rowoon Park
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea; (R.P.); (S.J.); (J.J.); (D.-W.H.)
| | - Sangheon Jeon
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea; (R.P.); (S.J.); (J.J.); (D.-W.H.)
| | - Jeonghwa Jeong
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea; (R.P.); (S.J.); (J.J.); (D.-W.H.)
| | - Shin-Young Park
- Department of Dental Education and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 03080, Korea;
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea; (R.P.); (S.J.); (J.J.); (D.-W.H.)
- Department of Optics and Mechatronics Engineering, Pusan National University, Busan 46241, Korea
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea; (R.P.); (S.J.); (J.J.); (D.-W.H.)
- Department of Optics and Mechatronics Engineering, Pusan National University, Busan 46241, Korea
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25
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Lettieri M, Emanuele R, Scarano S, Palladino P, Minunni M. Melanochrome-based colorimetric assay for quantitative detection of levodopa in co-presence of carbidopa and its application to relevant anti-Parkinson drugs. Anal Bioanal Chem 2021; 414:1713-1722. [PMID: 34842945 DOI: 10.1007/s00216-021-03804-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/16/2021] [Accepted: 11/24/2021] [Indexed: 12/11/2022]
Abstract
In this paper is reported the selective detection and quantification of levodopa in co-presence of carbidopa. The method took advantage of the spontaneous oxidation and color development of levodopa at basic pH here driven by alkaline earth cations and co-solvent in solution. We have shown for the first time the generation and stabilization of the purple melanochrome from levodopa, by using magnesium acetate and dimethyl sulfoxide, which was here exploited for the development of a quantitative colorimetric assay for the active principle ingredient in commercial drugs for the treatment of Parkinson's disease. The calibration curves of levodopa in the two tablet formulations, containing carbidopa as decarboxylase inhibitor, showed a common linear trend between 10 mg L-1 and 40 mg L-1 with levodopa alone or in combination with carbidopa in standard solutions, with very good reproducibility (CVav%, 3.3% for both brand and generic drug) and very good sensitivity, with limit of quantification about 0.6 mg L-1 in any case. The colorimetric method here developed is very simple and effective, appearing as a rapid and low-cost alternative to other methodologies, involving large and expensive instrumentations, for drug estimation and quality control of pharmaceutical formulations.
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Affiliation(s)
- Mariagrazia Lettieri
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
| | - Roberta Emanuele
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
| | - Simona Scarano
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
| | - Pasquale Palladino
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy.
| | - Maria Minunni
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
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26
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Du X, Su X, Zhang W, Yi S, Zhang G, Jiang S, Li H, Li S, Xia F. Progress, Opportunities, and Challenges of Troponin Analysis in the Early Diagnosis of Cardiovascular Diseases. Anal Chem 2021; 94:442-463. [PMID: 34843218 DOI: 10.1021/acs.analchem.1c04476] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xuewei Du
- State Key Laboratory of Biogeology Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xujie Su
- State Key Laboratory of Biogeology Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Wanxue Zhang
- State Key Laboratory of Biogeology Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Suyan Yi
- State Key Laboratory of Biogeology Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Ge Zhang
- State Key Laboratory of Biogeology Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Shan Jiang
- State Key Laboratory of Biogeology Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Hui Li
- State Key Laboratory of Biogeology Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Shaoguang Li
- State Key Laboratory of Biogeology Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Fan Xia
- State Key Laboratory of Biogeology Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
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27
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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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28
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Teixeira SPB, Reis RL, Peppas NA, Gomes ME, Domingues RMA. Epitope-imprinted polymers: Design principles of synthetic binding partners for natural biomacromolecules. SCIENCE ADVANCES 2021; 7:eabi9884. [PMID: 34714673 PMCID: PMC8555893 DOI: 10.1126/sciadv.abi9884] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 09/07/2021] [Indexed: 05/27/2023]
Abstract
Molecular imprinting (MI) has been explored as an increasingly viable tool for molecular recognition in various fields. However, imprinting of biologically relevant molecules like proteins is severely hampered by several problems. Inspired by natural antibodies, the use of epitopes as imprinting templates has been explored to circumvent those limitations, offering lower costs and greater versatility. Here, we review the latest innovations in this technology, as well as different applications where MI polymers (MIPs) have been used to target biomolecules of interest. We discuss the several steps in MI, from the choice of epitope and functional monomers to the different production methods and possible applications. We also critically explore how MIP performance can be assessed by various parameters. Last, we present perspectives on future breakthroughs and advances, offering insights into how MI techniques can be expanded to new fields such as tissue engineering.
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Affiliation(s)
- Simão P. B. Teixeira
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Rui L. Reis
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Nicholas A. Peppas
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX 78712-1801, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, University of Texas at Austin, Austin, TX 78712-1801, USA
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712-1801, USA
- Department of Pediatrics, Dell Medical School, University of Texas at Austin, Austin, TX 78712-1801, USA
- Department of Surgery and Perioperative Care, Dell Medical School, University of Texas at Austin, Austin, TX 78712-1801, USA
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, Austin, TX 78712-1801, USA
| | - Manuela E. Gomes
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Rui M. A. Domingues
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Guimarães, Portugal
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29
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Bereli N, Bakhshpour M, Topçu AA, Denizli A. Surface Plasmon Resonance-Based Immunosensor for Igm Detection with Gold Nanoparticles. MICROMACHINES 2021; 12:mi12091092. [PMID: 34577735 PMCID: PMC8468630 DOI: 10.3390/mi12091092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 01/02/2023]
Abstract
In this work, a surface plasmon resonance (SPR) based immunosensor was prepared by the immobilization of the amine-functionalized gold nanoparticles (N-AuNPs) on the sensing surface to sense immunoglobulin M (IgM) antibodies in the aqueous solution and artificial plasma. The characterization studies of SPR based immunosensor for IgM detection were performed with scanning electron microscope (SEM), contact angle measurements, and ellipsometry. Kinetic studies for the IgM immunosensor were carried out in the range of 1.0 to 200 ng/mL IgM concentrations in an aqueous solution. The total IgM analysis time including adsorption, desorption, and regeneration cycles was nearly 10 min for the prepared immunosensor. The limit of detection (LOD) and limit of quantification (LOQ) were found as 0.08 and 0.26 ng/mL, respectively. The reusability of the proposed immunosensor was tested with 6 consecutive adsorption-desorption, and regeneration cycles. Also, enzyme-linked immunosorbent assay (ELISA) method was utilized in the validation of the immunosensor.
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Affiliation(s)
- Nilay Bereli
- Chemistry Department, Hacettepe University, Beytepe, 06800 Ankara, Turkey; (N.B.); (M.B.)
| | - Monireh Bakhshpour
- Chemistry Department, Hacettepe University, Beytepe, 06800 Ankara, Turkey; (N.B.); (M.B.)
| | - Aykut Arif Topçu
- Medical Laboratory Program, Vocational School of Health Services, Aksaray University, 68100 Aksaray, Turkey;
| | - Adil Denizli
- Chemistry Department, Hacettepe University, Beytepe, 06800 Ankara, Turkey; (N.B.); (M.B.)
- Correspondence: ; Tel.: +90-31-297-7983; Fax: +90-312-299-2163
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30
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Giarola JDF, Souto DEP, Kubota LT. Evaluation of PAMAM Dendrimers (G3, G4, and G5) in the Construction of a SPR-based Immunosensor for Cardiac Troponin T. ANAL SCI 2021; 37:1007-1013. [PMID: 33431736 DOI: 10.2116/analsci.20p394] [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: 01/15/2023]
Abstract
An immunosensor was developed using a SAM of an alkanethiol associated with PAMAM(G4) dendrimers based on surface plasmon resonance (SPR) to enhance the sensitivity for troponin T detection in blood samples. The feasibility of using three-dimensional platforms based on dendrimers for the development of immunosensors was demonstrated by evaluating three different generations of these dendrimers (G3, G4, and G5) to detect troponin T. The results showed the efficiency of these 3D platforms in anchoring biomolecules, amplifying the detection of troponin T. The sandwich assay showed good performance for troponin T detection, using secondary monoclonal antibodies, in the concentration range of 5 - 300 ng mL-1 (0.14 - 8.67 nmol L-1), R2 = 0.991, with the LOD of 3.6 ng mL-1. The sandwich assay's applicability was demonstrated by evaluating a secondary polyclonal antibody's performance in the concentration range of 3 - 30 ng mL-1, R2 = 0.998, with the LOD of 0.98 ng mL-1. The immunosensor was applied to determine troponin T in blood plasma samples from healthy patients, with an average recovery of 88 to 104%. The performance of the SPR-based immunosensor indicates reliable results and is expected to contribute to the rapid diagnosis of heart attack, with reduced costs.
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Affiliation(s)
- Juliana de F Giarola
- Institute of Chemistry, University of Campinas (UNICAMP).,National Institute of Science & Technology of Bioanalytics (INCTBio)
| | - Dênio E P Souto
- Department of Chemistry, Federal University of Paraná (UFPR)
| | - Lauro T Kubota
- Institute of Chemistry, University of Campinas (UNICAMP).,National Institute of Science & Technology of Bioanalytics (INCTBio)
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31
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Torrini F, Palladino P, Baldoneschi V, Scarano S, Minunni M. Sensitive 'two-steps' competitive assay for gonadotropin-releasing hormone detection via SPR biosensing and polynorepinephrine-based molecularly imprinted polymer. Anal Chim Acta 2021; 1161:338481. [PMID: 33896555 DOI: 10.1016/j.aca.2021.338481] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/25/2021] [Accepted: 04/03/2021] [Indexed: 12/12/2022]
Abstract
The work reports an innovative bioassay for the detection of gonadorelin in urine, a gonadotropin-releasing hormone agonist widely used in fertility medicine and to treat hormonal dysfunctions. Gonadorelin is also a synthetic hormone listed by the World Anti-Doping Agency (WADA) and of interest in anti-doping controls. The main novelty relies on the development of a biocompatible, stable, and low-cost biomimetic receptor alternative to classic antibodies. Starting from norepinephrine monomer, a highly selective and sensitive molecularly imprinted polymer (MIP) was developed and optimized for optical real-time and label-free SPR biosensing. The selectivity has been addressed by testing a series of peptides, from high to low similarity, both in terms of molecular weight and primary sequence. Due to the very low molecular weight of gonadorelin (1182 Da), a 'two-steps' competitive assay was developed. Particular attention has been paid to the design of the competitor and its binding affinity constant towards the MIP, being a key step for the success of the competitive strategy. The SPR assay was first optimized in standard conditions and finally applied to untreated urine samples, achieving the sensitivity required by WADA guidelines. The MIP, tested in parallel with a monoclonal antibody, gave comparable results in terms of affinity constants and selectivity towards possible interfering analytes. However, the biomimetic receptor appears clearly superior in terms of sensitivity and reproducibility. This, together with its preparation simplicity, the extremely low-cost of the monomer and its reusability for hundreds of measurements, make polynorepinephrine-based MIPs powerful rivals to immune-based approaches in the near future for similar applications.
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Affiliation(s)
- Francesca Torrini
- Department of Chemistry "Ugo Schiff", University of Florence, 50019, Sesto Fiorentino (FI), Italy.
| | - Pasquale Palladino
- Department of Chemistry "Ugo Schiff", University of Florence, 50019, Sesto Fiorentino (FI), Italy.
| | - Veronica Baldoneschi
- Department of Chemistry "Ugo Schiff", University of Florence, 50019, Sesto Fiorentino (FI), Italy.
| | - Simona Scarano
- Department of Chemistry "Ugo Schiff", University of Florence, 50019, Sesto Fiorentino (FI), Italy.
| | - Maria Minunni
- Department of Chemistry "Ugo Schiff", University of Florence, 50019, Sesto Fiorentino (FI), Italy.
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32
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Li J, Zhang S, Zhang L, Zhang Y, Zhang H, Zhang C, Xuan X, Wang M, Zhang J, Yuan Y. A Novel Graphene-Based Nanomaterial Modified Electrochemical Sensor for the Detection of Cardiac Troponin I. Front Chem 2021; 9:680593. [PMID: 34055747 PMCID: PMC8162784 DOI: 10.3389/fchem.2021.680593] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 04/26/2021] [Indexed: 12/12/2022] Open
Abstract
Acute myocardial infarction has a high clinical mortality rate. The initial exclusion or diagnosis is important for the timely treatment of patients with acute myocardial infarction. As a marker, cardiac troponin I (cTnI) has a high specificity, high sensitivity to myocardial injury and a long diagnostic window. Therefore, its diagnostic value is better than previous markers of myocardial injury. In this work, we propose a novel aptamer electrochemical sensor. This sensor consists of silver nanoparticles/MoS2/reduced graphene oxide. The combination of these three materials can provide a synergistic effect for the stable immobilization of aptamer. Our proposed aptamer electrochemical sensor can detect cTnl with high sensitivity. After optimizing the parameters, the sensor can provide linear detection of cTnl in the range of 0.3 pg/ml to 0.2 ng/ml. In addition, the sensor is resistant to multiple interferents including urea, glucose, myoglobin, dopamine and hemoglobin.
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Affiliation(s)
- Jing Li
- Department of Cardiology, The Seventh People's Hospital of Zhengzhou, Zhengzhou, China
| | - Shenwei Zhang
- Department of Cardiology, The Seventh People's Hospital of Zhengzhou, Zhengzhou, China
| | - Li Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yu Zhang
- Department of Cardiology, The Seventh People's Hospital of Zhengzhou, Zhengzhou, China
| | - Hua Zhang
- Department of Cardiology, The Seventh People's Hospital of Zhengzhou, Zhengzhou, China
| | - Chuanxi Zhang
- Department of Cardiology, The Seventh People's Hospital of Zhengzhou, Zhengzhou, China
| | - Xuexi Xuan
- Department of Cardiology, The Seventh People's Hospital of Zhengzhou, Zhengzhou, China
| | - Mingjie Wang
- Department of Cardiology, The Seventh People's Hospital of Zhengzhou, Zhengzhou, China
| | - Jinying Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yiqiang Yuan
- Department of Cardiology, Chest Hospital of Henan Provincial, Zhengzhou, China
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Wang W, Wang R, Liao M, Kidd MT, Li Y. Rapid detection of enrofloxacin using a localized surface plasmon resonance sensor based on polydopamine molecular imprinted recognition polymer. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-00913-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Epitope-imprinted polydopamine electrochemical sensor for ovalbumin detection. Bioelectrochemistry 2021; 140:107805. [PMID: 33838516 DOI: 10.1016/j.bioelechem.2021.107805] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/15/2021] [Accepted: 03/21/2021] [Indexed: 01/02/2023]
Abstract
A novel, sensitive and selective electrochemical sensor based on epitope-imprinted polydopamine (PDA) was developed for ovalbumin (OVA) detection. Molecularly imprinted polydopamine was synthesized on an AuNP-coated screen-printed carbon electrode (SPCE) via electropolymerization in the presence of OVA IgE-binding epitope as the template. Key process parameters including template concentration, electropolymerization cycle, pH, time required for template removal and rebinding were optimized. Electrochemical detection of OVA was performed by differential pulse voltammetry (DPV) in 5 mM K3Fe(CN)6 and 0.1 M KCl as the supporting electrolyte. Under optimized conditions, the sensor demonstrated excellent sensitivity toward OVA with linear range from 23.25 to 232.50 nM (1 to 10 ppm), limit of detection (LOD) of 10.76 nM (0.46 ppm), and limit of quantification (LOQ) of 35.87 nM (1.54 ppm). The sensor also exhibited good selectivity against other proteins such as human serum albumin (HSA), bovine serum albumin (BSA), and lysozyme (LYZ). OVA in wine samples was detected with RSD of 5.63-10.82%, and recovery percentage of 104.74-105.96%. The developed method can be easily adapted to detect other allergic proteins in the food supply chain.
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Battaglia F, Baldoneschi V, Meucci V, Intorre L, Minunni M, Scarano S. Detection of canine and equine procalcitonin for sepsis diagnosis in veterinary clinic by the development of novel MIP-based SPR biosensors. Talanta 2021; 230:122347. [PMID: 33934796 DOI: 10.1016/j.talanta.2021.122347] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 01/10/2023]
Abstract
Procalcitonin (PCT) has emerged as a promising biomarker for the rapid identification of sepsis both in human and veterinary medicine. Nevertheless, the only analytical method currently available for the detection of PCT in veterinary species, is represented by immunoassays, useful only for research purposes. In this work, we report the development of two biosensors which utilize molecularly imprinted polymers (MIPs) for the detection of canine and equine PCT. Dopamine (DA) and norepinephrine (NE) were used as monomers for the synthesis of the MIP films on surface plasmon resonance (SPR) gold chips and the imprinting efficiency of canine and equine PCT in terms of binding affinity toward the analyte, selectivity, and sensitivity were compared. After optimization in buffer conditions, PCTs calibration was successfully achieved also in animal plasma, with good specificity and reproducibility. More effective protein binding and imprinting was obtained with polynorepinephrine (PNE) for both PCTs, and the SPR biosensors were able to detect the biomarkers in plasma with a LOD of 15 ng mL-1 and 30 ng mL-1 respectively for equine and canine PCT.
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Affiliation(s)
- F Battaglia
- Department of Veterinary Science, University of Pisa, 56122, Via Livornese, (PI), Italy
| | - V Baldoneschi
- Department of Chemistry "Ugo Schiff", University of Florence, 50019, Sesto Fiorentino, (FI), Italy
| | - V Meucci
- Department of Veterinary Science, University of Pisa, 56122, Via Livornese, (PI), Italy.
| | - L Intorre
- Department of Veterinary Science, University of Pisa, 56122, Via Livornese, (PI), Italy
| | - M Minunni
- Department of Chemistry "Ugo Schiff", University of Florence, 50019, Sesto Fiorentino, (FI), Italy
| | - S Scarano
- Department of Chemistry "Ugo Schiff", University of Florence, 50019, Sesto Fiorentino, (FI), Italy.
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Khumsap T, Corpuz A, Nguyen LT. Epitope-imprinted polymers: applications in protein recognition and separation. RSC Adv 2021; 11:11403-11414. [PMID: 35423617 PMCID: PMC8695941 DOI: 10.1039/d0ra10742e] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/09/2021] [Indexed: 12/13/2022] Open
Abstract
Molecularly imprinted polymers (MIPs) have evolved as promising platforms for specific recognition of proteins. However, molecular imprinting of the whole protein molecule is complicated by its large size, conformational instability, and structural complexity. These inherent limitations can be overcome by using epitope imprinting. Significant breakthroughs in the synthesis and application of epitope-imprinted polymers (EIPs) have been achieved and reported. This review highlights recent advances in epitope imprinting, from the selection of epitope peptide sequences and functional monomers to the methods applied in polymerization and template removal. Technological innovations in detection and extraction of proteins by EIPs are also provided.
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Affiliation(s)
- Tabkrich Khumsap
- Department of Food, Agriculture and Bioresources, School of Environment, Resources and Development, Asian Institute of Technology 58 Moo 9, Km. 42, Paholyothin Highway Klong Luang Pathumthani 12120 Thailand
| | - Angelica Corpuz
- Department of Food, Agriculture and Bioresources, School of Environment, Resources and Development, Asian Institute of Technology 58 Moo 9, Km. 42, Paholyothin Highway Klong Luang Pathumthani 12120 Thailand
| | - Loc Thai Nguyen
- Department of Food, Agriculture and Bioresources, School of Environment, Resources and Development, Asian Institute of Technology 58 Moo 9, Km. 42, Paholyothin Highway Klong Luang Pathumthani 12120 Thailand
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Xu S, Wang L, Liu Z. Molecularly Imprinted Polymer Nanoparticles: An Emerging Versatile Platform for Cancer Therapy. Angew Chem Int Ed Engl 2021; 60:3858-3869. [PMID: 32789971 PMCID: PMC7894159 DOI: 10.1002/anie.202005309] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 07/08/2020] [Indexed: 12/29/2022]
Abstract
Molecularly imprinted polymers (MIPs) are chemically synthesized affinity materials with tailor-made binding cavities complementary to the template molecules in shape, size, and functionality. Recently, engineering MIP-based nanomedicines to improve cancer therapy has become a rapidly growing field and future research direction. Because of the unique properties and functions of MIPs, MIP-based nanoparticles (nanoMIPs) are not only alternatives to current nanomaterials for cancer therapy, but also hold the potential to fill gaps associated with biological ligand-based nanomedicines, such as immunogenicity, stability, applicability, and economic viability. Here, we survey recent advances in the design and fabrication of nanoMIPs for cancer therapy and highlight their distinct features. In addition, how to use these features to achieve desired performance, including extended circulation, active targeting, controlled drug release and anti-tumor efficacy, is discussed and summarized. We expect that this minireview will inspire more advanced studies in MIP-based nanomedicines for cancer therapy.
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Affiliation(s)
- Shuxin Xu
- State Key Laboratory of Analytical Chemistry for Life ScienceSchool of Chemistry and Chemical EngineeringNanjing University163 Xianlin AvenueNanjing210023China
| | - Lisheng Wang
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of Ottawa451 Smyth RoadOttawaOntarioK1H 8M5Canada
| | - Zhen Liu
- State Key Laboratory of Analytical Chemistry for Life ScienceSchool of Chemistry and Chemical EngineeringNanjing University163 Xianlin AvenueNanjing210023China
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Xu S, Wang L, Liu Z. Molecularly Imprinted Polymer Nanoparticles: An Emerging Versatile Platform for Cancer Therapy. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202005309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Shuxin Xu
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University 163 Xianlin Avenue Nanjing 210023 China
| | - Lisheng Wang
- Department of Biochemistry, Microbiology and Immunology Faculty of Medicine University of Ottawa 451 Smyth Road Ottawa Ontario K1H 8M5 Canada
| | - Zhen Liu
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University 163 Xianlin Avenue Nanjing 210023 China
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40
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Polydopamine-based quantitation of albuminuria for the assessment of kidney damage. Anal Bioanal Chem 2021; 413:2217-2224. [PMID: 33543313 DOI: 10.1007/s00216-021-03192-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/07/2021] [Accepted: 01/22/2021] [Indexed: 12/13/2022]
Abstract
Proteinuria is considered indicative of kidney damage that can be related to various adverse outcomes. Nowadays, there is a huge demand for routine urine screening methods to assess health risks in clinical setting without expensive procedures and long pretreatment of the sample. To address this issue, a polydopamine-based colorimetric assay to determine urinary albumin concentration in real samples is proposed here. The core of this approach relies on the established competitive adsorption of polydopamine film and human serum albumin onto the polystyrene surface of ELISA plates. Herein, we investigated the influence of temperature and the Tris-HCl buffer concentration on the polydopamine film growth. The absorbance of polydopamine film, after 24 h at 25 °C, decreases with the increase of HSA concentration, allowing the selective detection of HSA down to 0.036 ± 0.001 g L-1 in untreated urine. This simple and low-cost bioanalytical assay exhibited very good reproducibility, %CVmean = 2 in human urine, and was superior in terms of analytical performances to some standard methods available on the market, especially in comparison to the Bradford assay, for early screening and assessment of kidney damage.
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Lee MH, Thomas JL, Su ZL, Yeh WK, Monzel AS, Bolognin S, Schwamborn JC, Yang CH, Lin HY. Epitope imprinting of alpha-synuclein for sensing in Parkinson's brain organoid culture medium. Biosens Bioelectron 2020; 175:112852. [PMID: 33288425 DOI: 10.1016/j.bios.2020.112852] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/19/2020] [Accepted: 11/23/2020] [Indexed: 02/09/2023]
Abstract
Parkinson's disease (PD) is a progressive nervous system disorder that affects movement, whose early signs may be mild and unnoticed. α-Synuclein has been identified as the major component of Lewy bodies and Lewy neurites, which are the characteristic proteinaceous deposits that are the hallmarks of PD. In this work, three alpha-synuclein peptides were synthesized as templates for the molecular imprinting of conductive polymers to enable recognition of alpha-synuclein via ultrasensitive electrochemical measurements. The peptide sequences encompassed specific residues where mutations are known to accelerate PD (though the target sequences, in this study, were wild-type.) The different peptide targets were all successfully imprinted, but with differing imprinting effectiveness, probably owing to differences in target carboxylic acids (which can bind to the aniline (AN) m-aminobenzenesulfonic acid (MSAN) MIP polymers.) Composition of the imprinted polymer, (the mole proportions of AN and MSAN), and the concentrations and sequences of imprinted peptide templates were optimized by measuring the electrochemical responses to target peptides. The imprinted electrode can detect alpha-synuclein at fg/mL levels, and was therefore used to measure alpha-synuclein in the culture medium of human brain organoids generated from normal and idiopathic PD patients.
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Affiliation(s)
- Mei-Hwa Lee
- Department of Materials Science and Engineering, I-Shou University, Kaohsiung, 84001, Taiwan
| | - James L Thomas
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Zi-Lin Su
- Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung, 81148, Taiwan
| | - Wen-Kuan Yeh
- Department of Electrical Engineering, National University of Kaohsiung, Kaohsiung, 81148, Taiwan; Taiwan Semiconductor Research Institute, Hsinchu, 30009, Taiwan
| | - Anna S Monzel
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Belvaux, L-4367, Luxembourg
| | - Silvia Bolognin
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Belvaux, L-4367, Luxembourg
| | - Jens C Schwamborn
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Belvaux, L-4367, Luxembourg
| | - Chien-Hsin Yang
- Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung, 81148, Taiwan
| | - Hung-Yin Lin
- Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung, 81148, Taiwan.
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42
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Savonnet M, Rolland T, Cubizolles M, Roupioz Y, Buhot A. Recent advances in cardiac biomarkers detection: From commercial devices to emerging technologies. J Pharm Biomed Anal 2020; 194:113777. [PMID: 33293175 DOI: 10.1016/j.jpba.2020.113777] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 01/09/2023]
Abstract
Although cardiac pathologies are the major cause of death in the world, it remains difficult to provide a reliable diagnosis to prevent heart attacks. Rapid patient care and management in emergencies are critical to prevent dramatic consequences. Thus, relevant biomarkers such as cardiac troponin and natriuretic peptides are currently targeted by commercialized Point-Of-Care immunoassays. Key points still to be addressed concern cost, lack of standardization, and poor specificity, which could limit the reliability of the assays. Consequently, alternatives are emerging to address these issues. New probe molecules such as aptamers or molecularly imprinted polymers should allow a reduction in cost of the assays and an increase in reproducibility. In addition, the assay specificity and reliability could be improved by enabling multiplexing through the detection of several molecular targets in a single device.
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Affiliation(s)
- Maud Savonnet
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, F-38000, Grenoble, France; Univ. Grenoble Alpes, CEA, LETI, Technologies for Healthcare and Biology Division, Microfluidic Systems and Bioengineering Lab, F-38000, Grenoble, France
| | - Tristan Rolland
- Univ. Grenoble Alpes, CEA, LETI, Technologies for Healthcare and Biology Division, Microfluidic Systems and Bioengineering Lab, F-38000, Grenoble, France
| | - Myriam Cubizolles
- Univ. Grenoble Alpes, CEA, LETI, Technologies for Healthcare and Biology Division, Microfluidic Systems and Bioengineering Lab, F-38000, Grenoble, France
| | - Yoann Roupioz
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, F-38000, Grenoble, France
| | - Arnaud Buhot
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, F-38000, Grenoble, France.
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Khan S, Hasan A, Attar F, Sharifi M, Siddique R, Mraiche F, Falahati M. Gold Nanoparticle-Based Platforms for Diagnosis and Treatment of Myocardial Infarction. ACS Biomater Sci Eng 2020; 6:6460-6477. [PMID: 33320615 DOI: 10.1021/acsbiomaterials.0c00955] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In recent years, an increasing rate of mortality due to myocardial infarction (MI) has led to the development of nanobased platforms, especially gold nanoparticles (AuNPs), as promising nanomaterials for diagnosis and treatment of MI. These promising NPs have been used to develop different nanobiosensors, mainly optical sensors for early detection of biomarkers as well as biomimetic/bioinspired platforms for cardiac tissue engineering (CTE). Therefore, in this Review, we presented an overview on the potential application of AuNPs as optical (surface plasmon resonance, colorimetric, fluorescence, and chemiluminescence) nanobiosensors for early diagnosis and prognosis of MI. On the other hand, we discussed the potential application of AuNPs either alone or with other NPs/polymers as promising three-dimensional (3D) scaffolds to regulate the microenvironment and mimic the morphological and electrical features of cardiac cells for potential application in CTE. Furthermore, we presented the challenges and ongoing efforts associated with the application of AuNPs in the diagnosis and treatment of MI. In conclusion, this Review may provide outstanding information regarding the development of AuNP-based technology as a promising platform for current MI treatment approaches.
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Affiliation(s)
- Suliman Khan
- Department of Cerebrovascular Diseases, the Second Affiliated Hospital of Zhengzhou University, Jingba Road, NO.2, 450014 Zhengzhou, China
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha 2713, Qatar.,Biomedical Research Centre (BRC), Qatar University, Doha 2713, Qatar
| | - Farnoosh Attar
- Department of Food Toxicology, Research Center of Food Technology and Agricultural Products, Standard Research Institute (SRI), Karaj 14155-6139, Iran
| | - Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Rabeea Siddique
- Department of Cerebrovascular Diseases, the Second Affiliated Hospital of Zhengzhou University, Jingba Road, NO.2, 450014 Zhengzhou, China
| | | | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Lim HJ, Saha T, Tey BT, Tan WS, Ooi CW. Quartz crystal microbalance-based biosensors as rapid diagnostic devices for infectious diseases. Biosens Bioelectron 2020; 168:112513. [PMID: 32889395 PMCID: PMC7443316 DOI: 10.1016/j.bios.2020.112513] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/30/2020] [Accepted: 08/11/2020] [Indexed: 12/18/2022]
Abstract
Infectious diseases are the ever-present threats to public health and the global economy. Accurate and timely diagnosis is crucial to impede the progression of a disease and break the chain of transmission. Conventional diagnostic techniques are typically time-consuming and costly, making them inefficient for early diagnosis of infections and inconvenient for use at the point of care. Developments of sensitive, rapid, and affordable diagnostic methods are necessary to improve the clinical management of infectious diseases. Quartz crystal microbalance (QCM) systems have emerged as a robust biosensing platform due to their label-free mechanism, which allows the detection and quantification of a wide range of biomolecules. The high sensitivity and short detection time offered by QCM-based biosensors are attractive for the early detection of infections and the routine monitoring of disease progression. Herein, the strategies employed in QCM-based biosensors for the detection of infectious diseases are extensively reviewed, with a focus on prevalent diseases for which improved diagnostic techniques are in high demand. The challenges to the clinical application of QCM-based biosensors are highlighted, along with an outline of the future scope of research in QCM-based diagnostics.
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Affiliation(s)
- Hui Jean Lim
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Tridib Saha
- Electrical and Computer Systems Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Beng Ti Tey
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia; Advanced Engineering Platform, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Wen Siang Tan
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia; Laboratory of Vaccine and Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Chien Wei Ooi
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia; Tropical Medicine and Biology Platform, School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia.
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Zhang J, Lakshmipriya T, Gopinath SCB. Electroanalysis on an Interdigitated Electrode for High-Affinity Cardiac Troponin I Biomarker Detection by Aptamer-Gold Conjugates. ACS OMEGA 2020; 5:25899-25905. [PMID: 33073115 PMCID: PMC7558037 DOI: 10.1021/acsomega.0c03260] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/18/2020] [Indexed: 05/05/2023]
Abstract
The primary reasons for myocardial infarction (MI) are pericarditis, arrhythmia, and heart failure, causing predominant deaths worldwide. Patients need a potential diagnostic system and treatment before cardiomyocyte damage. Cardiac biomarkers are released from myocytes immediately after a heart attack. Troponin is an efficient biomarker released from dead cells within a few hours. Aptamers are artificial antibodies used effectively in the biosensor field for biomarker detection. Along with aptamers, the application of nanomaterials is also expected to enhance the detection limits of biosensors. In this investigation, selected aptamers against cardiac troponin I (cTnI) were conjugated with gold nanoparticles (GNPs) to diagnose MI and compared with an aptamer-only control group on an interdigitated electrode surface. Based on electroanalysis, cTnI was detected at concentrations as low as 1 fM, and the detection limit improved to 100 aM when the aptamer was conjugated with GNP. In addition, aptamer-GNP conjugates increased the current level at the tested concentrations of cTnI. Control experiments with noncomplementary aptamers and relevant proteins did not result in notable changes in the current, demonstrating the selective detection of cTnI.
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Affiliation(s)
- Jintao Zhang
- Department
of Children’s Heart Center, Fuwai Central China Cardiovascular
Hospital, Henan Provincial People’s
Hospital, Zhengzhou City, Henan Province 450000, China
| | - Thangavel Lakshmipriya
- Institute
of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis 01000, Malaysia
| | - Subash C. B. Gopinath
- Institute
of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis 01000, Malaysia
- Faculty
of Chemical Engineering Technology, Universiti
Malaysia Perlis, Arau, Perlis 02600, Malaysia
- Correspondence
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Luong JHT, Narayan T, Solanki S, Malhotra BD. Recent Advances of Conducting Polymers and Their Composites for Electrochemical Biosensing Applications. J Funct Biomater 2020; 11:E71. [PMID: 32992861 PMCID: PMC7712382 DOI: 10.3390/jfb11040071] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/17/2020] [Accepted: 09/20/2020] [Indexed: 02/01/2023] Open
Abstract
Conducting polymers (CPs) have been at the center of research owing to their metal-like electrochemical properties and polymer-like dispersion nature. CPs and their composites serve as ideal functional materials for diversified biomedical applications like drug delivery, tissue engineering, and diagnostics. There have also been numerous biosensing platforms based on polyaniline (PANI), polypyrrole (PPY), polythiophene (PTP), and their composites. Based on their unique properties and extensive use in biosensing matrices, updated information on novel CPs and their role is appealing. This review focuses on the properties and performance of biosensing matrices based on CPs reported in the last three years. The salient features of CPs like PANI, PPY, PTP, and their composites with nanoparticles, carbon materials, etc. are outlined along with respective examples. A description of mediator conjugated biosensor designs and enzymeless CPs based glucose sensing has also been included. The future research trends with required improvements to improve the analytical performance of CP-biosensing devices have also been addressed.
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Affiliation(s)
- John H. T. Luong
- School of Chemistry and the Analytical and Biological Chemistry Research Facility (ABCRF), University College Cork, College Road, T12 YN60 Cork, Ireland
| | - Tarun Narayan
- Department of Biotechnology, Delhi Technological University, Delhi 110042, India; (T.N.); (S.S.); (B.D.M.)
| | - Shipra Solanki
- Department of Biotechnology, Delhi Technological University, Delhi 110042, India; (T.N.); (S.S.); (B.D.M.)
- Applied Chemistry Department, Delhi Technological University, Delhi 110042, India
| | - Bansi D. Malhotra
- Department of Biotechnology, Delhi Technological University, Delhi 110042, India; (T.N.); (S.S.); (B.D.M.)
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D'Agata R, Bellassai N, Giuffrida MC, Aura AM, Petri C, Kögler P, Vecchio G, Jonas U, Spoto G. A new ultralow fouling surface for the analysis of human plasma samples with surface plasmon resonance. Talanta 2020; 221:121483. [PMID: 33076094 DOI: 10.1016/j.talanta.2020.121483] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 07/23/2020] [Accepted: 07/29/2020] [Indexed: 01/08/2023]
Abstract
Surface plasmon resonance (SPR) has been widely used to detect a variety of biomolecular systems, but only a small fraction of applications report on the analysis of patients' samples. A critical barrier to the full implementation of SPR technology in molecular diagnostics currently exists for its potential application to analyze blood plasma or serum samples. Such capability is mostly hindered by the non-specific adsorption of interfering species present in the biological sample at the functional interface of the biosensor, often referred to as fouling. Suitable polymeric layers having a thickness ranging from 15 and about 70 nm are usually deposited on the active surface of biosensors to introduce antifouling properties. A similar approach is not fully adequate for SPR detection where the exponential decay of the evanescent plasmonic field limits the thickness of the layer beyond the SPR metallic sensor surface for which a sensitive detection can be obtained. Here, a triethylene glycol (PEG(3))-pentrimer carboxybetaine system is proposed to fabricate a new surface coating bearing excellent antifouling properties with a thickness of less than 2 nm, thus compatible with sensitive SPR detection. The high variability of experimental conditions described in the literature for the quantitative assessment of the antifouling performances of surface layers moved us to compare the superior antifouling capacity of the new pentrimeric system with that of 4-aminophenylphosphorylcholine, PEG-carboxybetaine and sulfobetaine-modified surface layers, respectively, using undiluted and diluted pooled human plasma samples. The use of the new coating for the immunologic SPRI biosensing of human arginase 1 in plasma is also presented.
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Affiliation(s)
- Roberta D'Agata
- Dipartimento di Scienze Chimiche, Università Degli Studi di Catania, Viale Andrea Doria 6, Catania, Italy
| | - Noemi Bellassai
- Dipartimento di Scienze Chimiche, Università Degli Studi di Catania, Viale Andrea Doria 6, Catania, Italy
| | - Maria Chiara Giuffrida
- Consorzio Interuniversitario "Istituto Nazionale Biostrutture e Biosistemi", c/o Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, Catania, Italy
| | - Angela Margherita Aura
- Dipartimento di Scienze Chimiche, Università Degli Studi di Catania, Viale Andrea Doria 6, Catania, Italy
| | - Christian Petri
- Department Chemistry - Biology, University of Siegen, Adolf-Reichwein-Strasse 2, D-57076, Siegen, Germany
| | - Peter Kögler
- Department Chemistry - Biology, University of Siegen, Adolf-Reichwein-Strasse 2, D-57076, Siegen, Germany
| | - Graziella Vecchio
- Dipartimento di Scienze Chimiche, Università Degli Studi di Catania, Viale Andrea Doria 6, Catania, Italy
| | - Ulrich Jonas
- Department Chemistry - Biology, University of Siegen, Adolf-Reichwein-Strasse 2, D-57076, Siegen, Germany
| | - Giuseppe Spoto
- Dipartimento di Scienze Chimiche, Università Degli Studi di Catania, Viale Andrea Doria 6, Catania, Italy; Consorzio Interuniversitario "Istituto Nazionale Biostrutture e Biosistemi", c/o Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, Catania, Italy.
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Pirzada M, Sehit E, Altintas Z. Cancer biomarker detection in human serum samples using nanoparticle decorated epitope-mediated hybrid MIP. Biosens Bioelectron 2020; 166:112464. [PMID: 32771854 DOI: 10.1016/j.bios.2020.112464] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 07/07/2020] [Accepted: 07/17/2020] [Indexed: 01/22/2023]
Abstract
The determination of disease-associated molecules at trace amounts is a key factor for early and efficient diagnosis from human body fluids. Herein, an ultrasensitive electrochemical sensor based on hybrid epitope imprinting and nanomaterial amplification was developed. The hybrid epitope imprinting was achieved by electropolymerization in the presence of two computationally selected and cysteine modified epitopes of neuron specific enolase (NSE), as-synthesized gold nanoparticles (AuNPs), and functional monomer. The AuNPs decorated epitope-mediated hybrid MIPs, as well as the standard hybrid MIPs, were utilized for the preparation of electrochemical sensors to demonstrate the impact of nanomaterial's modification in the polymer network for biomarker sensing. The fabrication process of both sensor types was investigated by employing cyclic voltammetry, square wave voltammetry, atomic force microscopy, and scanning electron microscopy. The biomarker assay using the standard hybrid MIPs resulted in 2.5-fold higher sensitivity compared to single epitope imprints, whereas the AuNP-hybrid MIPs enhanced the sensitivity level to a great extent and allowed the recognition of NSE in human serum in a concentration range of 25-4000 pg/mL. Comparative selectivity studies with non-imprinted polymer resulted in an imprinting factor of 4.2, confirming the high target selectivity of AuNP-MIP cavities. Cross-reaction of the sensor with four reference molecules (dopamine, bovine serum albumin, glucose and elongated peptide) was negligible. As compared to current strategies for epitope imprinting which rely on single epitopes for the formation of molecular cavities, the hybrid epitope-MIPs, particularly with the inclusion of AuNPs have provided more desirable sensing platforms with high sensitivity, affinity and specificity.
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Affiliation(s)
- Muqsit Pirzada
- Technical University of Berlin, Straße des 17. Juni 124, Berlin, 10623, Germany
| | - Ekin Sehit
- Technical University of Berlin, Straße des 17. Juni 124, Berlin, 10623, Germany
| | - Zeynep Altintas
- Technical University of Berlin, Straße des 17. Juni 124, Berlin, 10623, Germany.
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Yarman A, Scheller FW. How Reliable Is the Electrochemical Readout of MIP Sensors? SENSORS (BASEL, SWITZERLAND) 2020; 20:E2677. [PMID: 32397160 PMCID: PMC7248831 DOI: 10.3390/s20092677] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/01/2020] [Accepted: 05/06/2020] [Indexed: 01/15/2023]
Abstract
Electrochemical methods offer the simple characterization of the synthesis of molecularly imprinted polymers (MIPs) and the readouts of target binding. The binding of electroinactive analytes can be detected indirectly by their modulating effect on the diffusional permeability of a redox marker through thin MIP films. However, this process generates an overall signal, which may include nonspecific interactions with the nonimprinted surface and adsorption at the electrode surface in addition to (specific) binding to the cavities. Redox-active low-molecular-weight targets and metalloproteins enable a more specific direct quantification of their binding to MIPs by measuring the faradaic current. The in situ characterization of enzymes, MIP-based mimics of redox enzymes or enzyme-labeled targets, is based on the indication of an electroactive product. This approach allows the determination of both the activity of the bio(mimetic) catalyst and of the substrate concentration.
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Affiliation(s)
- Aysu Yarman
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam, Germany
| | - Frieder W. Scheller
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam, Germany
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Polynorepinephrine: state-of-the-art and perspective applications in biosensing and molecular recognition. Anal Bioanal Chem 2020; 412:5945-5954. [DOI: 10.1007/s00216-020-02578-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/25/2020] [Accepted: 03/03/2020] [Indexed: 01/26/2023]
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