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Wong ECN, Zhang Y, Yang T, Liu Y, Abtahi M, Chen X, Ajayi AJ, Li X, Majonis D, Winnik MA. Optimizing the Structure of a Pt Metal-Chelating Polymer to Reduce Nonspecific Binding for Mass Cytometry. Biomacromolecules 2024. [PMID: 39325685 DOI: 10.1021/acs.biomac.4c00937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2024]
Abstract
Mass cytometry is a bioanalytic tool based on atomic mass spectrometry for detecting biomarker expression on individual cells. Current reagents employ metal-chelating polymers binding isotopes of hard metal ions. Polymers bearing chelators for soft metal ions offer the promise for a large increase in multiplexing capabilities, but examples reported so far often have unacceptably high levels of nonspecific binding (NSB). We recently reported a new class of metal-chelating polymers with dipicolylamine (DPA) chelators that could bind Re and Pt. They also showed significant levels of NSB. Here, to reduce the NSB of the Pt-DPA polymer, we grafted water-soluble oligomers to the distal end of the dipicolylamine pendant group. Methoxy(polyethylene glycol) (DP = 24) was effective as was poly(sulfobetaine methacrylate) (DP = 29). Reacting the Pt-Cl bond of the metalated polymer with glutathione was remarkably effective at suppressing NSB. These results open the door to Pt-isotope-based metal-chelating polymers as new mass tags for mass cytometry.
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Affiliation(s)
- Edmond C N Wong
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Yefeng Zhang
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Tianjia Yang
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Yang Liu
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Mahtab Abtahi
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Xu Chen
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Ayonitemi J Ajayi
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Xiaochong Li
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | | | - Mitchell A Winnik
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
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2
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Víšová I, Houska M, Vaisocherová-Lísalová H. Biorecognition antifouling coatings in complex biological fluids: a review of functionalization aspects. Analyst 2022; 147:2597-2614. [PMID: 35621143 DOI: 10.1039/d2an00436d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent progress in biointerface research has highlighted the role of antifouling functionalizable coatings in the development of advanced biosensors for point-of-care bioanalytical and biomedical applications dealing with real-world complex samples. The resistance to nonspecific adsorption promotes the biorecognition performance and overall increases the reliability and specificity of the analysis. However, the process of modification with biorecognition elements (so-called functionalization) may influence the resulting antifouling properties. The extent of these effects concerning both functionalization procedures potentially changing the surface architecture and properties, and the physicochemical properties of anchored biorecognition elements, remains unclear and has not been summarized in the literature yet. This critical review summarizes these key functionalization aspects with respect to diverse antifouling architectures showing low or ultra-low fouling quantitative characteristics in complex biological media such as bodily fluids or raw food samples. The subsequent discussion focuses on the impact of functionalization on fouling resistance. Furthermore, this review discusses some of the drawbacks of available surface sensitive characterization methods and highlights the importance of suitable assessment of the resistance to fouling.
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Affiliation(s)
- Ivana Víšová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague 8, Czech Republic.
| | - Milan Houska
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague 8, Czech Republic.
| | - Hana Vaisocherová-Lísalová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague 8, Czech Republic.
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3
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Aptamer-modified biosensors to visualize neurotransmitter flux. J Neurosci Methods 2022; 365:109386. [PMID: 34653500 DOI: 10.1016/j.jneumeth.2021.109386] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/23/2021] [Accepted: 10/07/2021] [Indexed: 12/14/2022]
Abstract
Chemical biosensors with the capacity to continuously monitor various neurotransmitter dynamics can be powerful tools to understand complex signaling pathways in the brain. However, in vivo detection of neurochemicals is challenging for many reasons such as the rapid release and clearance of neurotransmitters in the extracellular space, or the low target analyte concentrations in a sea of interfering biomolecules. Biosensing platforms with adequate spatiotemporal resolution coupled to specific and selective receptors termed aptamers, demonstrate high potential to tackle such challenges. Herein, we review existing literature in this field. We first discuss nanoparticle-based systems, which have a simple in vitro implementation and easily interpretable results. We then examine methods employing near-infrared detection for deeper tissue imaging, hence easier translation to in vivo implementation. We conclude by reviewing live cell imaging of neurotransmitter release via aptamer-modified platforms. For each of these sensors, we discuss the associated challenges for translation to real-time in vivo neurochemical imaging. Realization of in vivo biosensors for neurotransmitters will drive future development of early prevention strategies, treatments, and therapeutics for psychiatric and neurodegenerative diseases.
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4
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Maeno H, Wong PF, AbuBakar S, Yang M, Sam SS, Jamil-Abd J, Shunmugarajoo A, Mustafa M, Said RM, Mageswaren E, Azmel A, Mat Jelani A. A 3D Microfluidic ELISA for the Detection of Severe Dengue: Sensitivity Improvement and Vroman Effect Amelioration by EDC-NHS Surface Modification. MICROMACHINES 2021; 12:mi12121503. [PMID: 34945351 PMCID: PMC8715748 DOI: 10.3390/mi12121503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/20/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022]
Abstract
Serum is commonly used as a specimen in immunoassays but the presence of heterophilic antibodies can potentially interfere with the test results. Previously, we have developed a microfluidic device called: 3D Stack for enzyme-linked immunosorbent assay (ELISA). However, its evaluation was limited to detection from a single protein solution. Here, we investigated the sensitivity of the 3D Stack in detecting a severe dengue biomarker—soluble CD163 (sCD163)—within the serum matrix. To determine potential interactions with serum matrix, a spike-and-recovery assay was performed, using 3D Stacks with and without surface modification by an EDC–NHS (N-ethyl-N′-(3-(dimethylamino)propyl)carbodiimide/N-hydroxysuccinimide) coupling. Without surface modification, a reduced analyte recovery in proportion to serum concentration was observed because of the Vroman effect, which resulted in competitive displacement of coated capture antibodies by serum proteins with stronger binding affinities. However, EDC–NHS coupling prevented antibody desorption and improved the sensitivity. Subsequent comparison of sCD163 detection using a 3D Stack with EDC–NHS coupling and conventional ELISA in dengue patients’ sera revealed a high correlation (R = 0.9298, p < 0.0001) between the two detection platforms. Bland–Altman analysis further revealed insignificant systematic error between the mean differences of the two methods. These data suggest the potentials of the 3D Stack for further development as a detection platform.
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Affiliation(s)
- Hinata Maeno
- Department of System Design, Tokyo Metropolitan University, Tokyo 191-0065, Japan;
| | - Pooi-Fong Wong
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Sazaly AbuBakar
- Tropical Infectious Diseases Research and Educational Centre (TIDREC), University of Malaya, Kuala Lumpur 50603, Malaysia; (S.A.); (S.-S.S.); (J.J.-A.)
- WHO Collaborating Centre for Arbovirus Reference and Research (Dengue and Severe Dengue) MAA-12, University of Malaya, Kuala Lumpur 50603, Malaysia
- Medical Department, Tengku Ampuan Rahimah Hospital, Klang 41200, Malaysia; (A.S.); (E.M.); (A.A.)
| | - Ming Yang
- Department of System Design, Tokyo Metropolitan University, Tokyo 191-0065, Japan;
- Correspondence:
| | - Sing-Sin Sam
- Tropical Infectious Diseases Research and Educational Centre (TIDREC), University of Malaya, Kuala Lumpur 50603, Malaysia; (S.A.); (S.-S.S.); (J.J.-A.)
- WHO Collaborating Centre for Arbovirus Reference and Research (Dengue and Severe Dengue) MAA-12, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Juraina Jamil-Abd
- Tropical Infectious Diseases Research and Educational Centre (TIDREC), University of Malaya, Kuala Lumpur 50603, Malaysia; (S.A.); (S.-S.S.); (J.J.-A.)
- WHO Collaborating Centre for Arbovirus Reference and Research (Dengue and Severe Dengue) MAA-12, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Anusha Shunmugarajoo
- Medical Department, Tengku Ampuan Rahimah Hospital, Klang 41200, Malaysia; (A.S.); (E.M.); (A.A.)
| | - Mahiran Mustafa
- Medical Department, Raja Perempuan Zainab II Hospital, Kota Bharu 15200, Malaysia; (M.M.); (A.M.J.)
| | - Rosaida Md Said
- Medical Department, Ampang Hospital, Ampang 68000, Malaysia;
| | - Eashwary Mageswaren
- Medical Department, Tengku Ampuan Rahimah Hospital, Klang 41200, Malaysia; (A.S.); (E.M.); (A.A.)
| | - Azureen Azmel
- Medical Department, Tengku Ampuan Rahimah Hospital, Klang 41200, Malaysia; (A.S.); (E.M.); (A.A.)
| | - Anilawati Mat Jelani
- Medical Department, Raja Perempuan Zainab II Hospital, Kota Bharu 15200, Malaysia; (M.M.); (A.M.J.)
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Enhanced Plasmonic Biosensor Utilizing Paired Antibody and Label-Free Fe 3O 4 Nanoparticles for Highly Sensitive and Selective Detection of Parkinson's α-Synuclein in Serum. BIOSENSORS-BASEL 2021; 11:bios11100402. [PMID: 34677358 PMCID: PMC8534275 DOI: 10.3390/bios11100402] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/09/2021] [Accepted: 10/14/2021] [Indexed: 12/12/2022]
Abstract
Parkinson’s disease (PD) is an acute and progressive neurodegenerative disorder, and diagnosis of the disease at its earliest stage is of paramount importance to improve the life expectancy of patients. α-Synuclein (α-syn) is a potential biomarker for the early diagnosis of PD, and there is a great need to develop a biosensing platform that precisely detects α-syn in human body fluids. Herein, we developed a surface plasmon resonance (SPR) biosensor based on the label-free iron oxide nanoparticles (Fe3O4 NPs) and paired antibody for the highly sensitive and selective detection of α-syn in serum samples. The sensitivity of the SPR platform is enhanced significantly by directly depositing Fe3O4 NPs on the Au surface at a high density to increase the decay length of the evanescent field on the Au film. Moreover, the utilization of rabbit-type monoclonal antibody (α-syn-RmAb) immobilized on Au films allows the SPR platform to have a high affinity-selectivity binding performance compared to mouse-type monoclonal antibodies as a common bioreceptor for capturing α-syn molecules. As a result, the current platform has a detection limit of 5.6 fg/mL, which is 20,000-fold lower than that of commercial ELISA. The improved sensor chip can also be easily regenerated to repeat the α-syn measurement with the same sensitivity. Furthermore, the SPR sensor was applied to the direct analysis of α-syn in serum samples. By using a format of paired α-syn-RmAb, the SPR sensor provides a recovery rate in the range from 94.5% to 104.3% to detect the α-syn in diluted serum samples precisely. This work demonstrates a highly sensitive and selective quantification approach to detect α-syn in human biofluids and paves the way for the future development in the early diagnosis of PD.
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6
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Smith PM, Sutradhar I, Telmer M, Magar R, Farimani AB, Reeja-Jayan B. Isolating Specific vs. Non-Specific Binding Responses in Conducting Polymer Biosensors for Bio-Fingerprinting. SENSORS 2021; 21:s21196335. [PMID: 34640658 PMCID: PMC8512428 DOI: 10.3390/s21196335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/14/2021] [Accepted: 09/14/2021] [Indexed: 11/16/2022]
Abstract
A longstanding challenge for accurate sensing of biomolecules such as proteins concerns specifically detecting a target analyte in a complex sample (e.g., food) without suffering from nonspecific binding or interactions from the target itself or other analytes present in the sample. Every sensor suffers from this fundamental drawback, which limits its sensitivity, specificity, and longevity. Existing efforts to improve signal-to-noise ratio involve introducing additional steps to reduce nonspecific binding, which increases the cost of the sensor. Conducting polymer-based chemiresistive biosensors can be mechanically flexible, are inexpensive, label-free, and capable of detecting specific biomolecules in complex samples without purification steps, making them very versatile. In this paper, a poly (3,4-ethylenedioxyphene) (PEDOT) and poly (3-thiopheneethanol) (3TE) interpenetrating network on polypropylene–cellulose fabric is used as a platform for a chemiresistive biosensor, and the specific and nonspecific binding events are studied using the Biotin/Avidin and Gliadin/G12-specific complementary binding pairs. We observed that specific binding between these pairs results in a negative ΔR with the addition of the analyte and this response increases with increasing analyte concentration. Nonspecific binding was found to have the opposite response, a positive ΔR upon the addition of analyte was seen in nonspecific binding cases. We further demonstrate the ability of the sensor to detect a targeted protein in a dual-protein analyte solution. The machine-learning classifier, random forest, predicted the presence of Biotin with 75% accuracy in dual-analyte solutions. This capability of distinguishing between specific and nonspecific binding can be a step towards solving the problem of false positives or false negatives to which all biosensors are susceptible.
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Affiliation(s)
- Phil M. Smith
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA; (P.M.S.); (M.T.); (R.M.); (A.B.F.)
| | - Indorica Sutradhar
- Department of Materials Science & Engineering & Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA;
| | - Maxwell Telmer
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA; (P.M.S.); (M.T.); (R.M.); (A.B.F.)
| | - Rishikesh Magar
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA; (P.M.S.); (M.T.); (R.M.); (A.B.F.)
| | - Amir Barati Farimani
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA; (P.M.S.); (M.T.); (R.M.); (A.B.F.)
| | - B. Reeja-Jayan
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA; (P.M.S.); (M.T.); (R.M.); (A.B.F.)
- Correspondence: ; Tel.: +1-(412)-268-4343
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7
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Garrido-Jareño M, Puchades-Carrasco L, Orti-Pérez L, Sahuquillo-Arce JM, Del Carmen Meyer-García M, Mollar-Maseres J, Lloret-Sos C, Gil-Brusola A, López-Hontangas JL, Beltrán-Garrido JM, Pemán-García J, Pineda-Lucena A. A surface plasmon resonance based approach for measuring response to pneumococcal vaccine. Sci Rep 2021; 11:6502. [PMID: 33753824 PMCID: PMC7985148 DOI: 10.1038/s41598-021-85958-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 03/08/2021] [Indexed: 02/06/2023] Open
Abstract
Incidence of pneumococcal disease has increased worldwide in recent years. Response to pneumococcal vaccine is usually measured using the multiserotype enzyme-linked immunosorbent assay (ELISA) pneumococcal test. However, this approach presents several limitations. Therefore, the introduction of new and more robust analytical approaches able to provide information on the efficacy of the pneumococcal vaccine would be very beneficial for the clinical management of patients. Surface plasmon resonance (SPR) has been shown to offer a valuable understanding of vaccines' properties over the last years. The aim of this study is to evaluate the reliability of SPR for the anti-pneumococcal capsular polysaccharides (anti-PnPs) IgGs quantification in vaccinated. Fast protein liquid chromatography (FPLC) was used for the isolation of total IgGs from serum samples of vaccinated patients. Binding-SPR assays were performed to study the interaction between anti-PnPs IgGs and PCV13. A robust correlation was found between serum levels of anti-PnPs IgGs, measured by ELISA, and the SPR signal. Moreover, it was possible to correctly classify patients into "non-responder", "responder" and "high-responder" groups according to their specific SPR PCV13 response profiles. SPR technology provides a valuable tool for reliably characterize the interaction between anti-PnPs IgGs and PCV13 in a very short experimental time.
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Affiliation(s)
- Marta Garrido-Jareño
- Drug Discovery Unit, Health Research Institute La Fe, Valencia, Spain.,Microbiology Department, University and Polytechnic Hospital La Fe, Valencia, Spain
| | | | | | | | | | - Joan Mollar-Maseres
- Preventive Medicine Department, University and Polytechnic Hospital La Fe, Valencia, Spain
| | - Carmina Lloret-Sos
- Microbiology Department, University and Polytechnic Hospital La Fe, Valencia, Spain
| | - Ana Gil-Brusola
- Microbiology Department, University and Polytechnic Hospital La Fe, Valencia, Spain.,Severe Infection Group, Health Research Institute Hospital La Fe, Valencia, Spain
| | | | | | - Javier Pemán-García
- Microbiology Department, University and Polytechnic Hospital La Fe, Valencia, Spain. .,Severe Infection Group, Health Research Institute Hospital La Fe, Valencia, Spain.
| | - Antonio Pineda-Lucena
- Drug Discovery Unit, Health Research Institute La Fe, Valencia, Spain. .,Molecular Therapeutics Program, Center for Applied Medical Research, University of Navarra, Pamplona, Spain.
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8
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Farshchi F, Hasanzadeh M. Microfluidic biosensing of circulating tumor cells (CTCs): Recent progress and challenges in efficient diagnosis of cancer. Biomed Pharmacother 2020; 134:111153. [PMID: 33360045 DOI: 10.1016/j.biopha.2020.111153] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 10/22/2022] Open
Abstract
Cancer metastasis is one of the foremost causes of cancer incidence and fatality in the whole of the world. Circulating tumor cells (CTC) have been confirmed to be among the most significant stimuli of metastasis in recent years and presently are the subject of extensive research aiming to be accurately identified by using biological and physical properties. Among the various studies conducted for isolation, identification, and characterization of CTCs, microfluidic systems have aroused great attention owing to their unique advantages such as low-cost, simplicity, reduction in reagent consumption, miniaturization, fast and precise control. The purpose of this review is to provide an overview of current state of the microfluidic biosensors for the screening of CTCs. Additionally, given the recent progress in this field, future outlook for the development of the microfluidics biosensing is briefly discussed.
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Affiliation(s)
- Fatemeh Farshchi
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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9
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Ishihara K, Mitera K, Inoue Y, Fukazawa K. Effects of molecular interactions at various polymer brush surfaces on fibronectin adsorption induced cell adhesion. Colloids Surf B Biointerfaces 2020; 194:111205. [DOI: 10.1016/j.colsurfb.2020.111205] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/06/2020] [Accepted: 06/16/2020] [Indexed: 02/06/2023]
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10
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Ameri M, Shabaninejad Z, Movahedpour A, Sahebkar A, Mohammadi S, Hosseindoost S, Ebrahimi MS, Savardashtaki A, Karimipour M, Mirzaei H. Biosensors for detection of Tau protein as an Alzheimer's disease marker. Int J Biol Macromol 2020; 162:1100-1108. [PMID: 32603732 DOI: 10.1016/j.ijbiomac.2020.06.239] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/13/2020] [Accepted: 06/25/2020] [Indexed: 12/16/2022]
Abstract
Known as a main neural MAP (microtubule associated protein), tau protein contributes to stabilizing microtubules involved in cellular transmission. Tau dysfunction is mainly associated with neurodegenerative diseases, particularly Alzheimer's disease (AD). In these patients, all the six tau isoforms, which are in hyperphosphorylated form, are first aggregated and then polymerized into neurofibrillary tangles inside the brain. Tau protein detected in cerebrospinal fluid (CSF) is significantly correlated with AD and is well recognized as a hallmark of the disease. Served for detection of analytes of interest, biosensor device comprises a physical transducer and a keen biological recognition component. Qualitative and quantitative evaluations may be performed through analyzation of the data, which is gathered by measurable signals converted from biological reaction. Antibodies, receptors, microorganisms, nucleic acids, enzymes, cells and tissues, as well as some biomimetic structures, normally constitute the biosensor biological recognition part. Production of nanobiosensor, which was made possible through several accomplishments in nano- and fabrication technology, opens up new biotechnological horizons in diagnosis of multiple diseases. In recent years, many researches have been focused on developing novel and effective tau protein biosensors for rapid and accurate detection of AD. In this review, tau protein function and correlation with AD as well as the eminent research on developing nanobiosensor based on optical, electrochemical and piezoelectric approaches will be highlighted.
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Affiliation(s)
- Mehrdad Ameri
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences Shiraz, Iran; Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Shabaninejad
- Department of Nanobiotechnology, School of Basic Science, Tarbiat Modares University, Tehran, Iran; Pharmaceutical Science Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - Ahmad Movahedpour
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences Shiraz, Iran; Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Soheila Mohammadi
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Saereh Hosseindoost
- Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Amir Savardashtaki
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences Shiraz, Iran; Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Mohammad Karimipour
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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11
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Bourafai-Aziez A, Sebban M, Benabderrahmane M, Marekha B, Denis C, Paysant H, Weiswald LB, Carlier L, Bureau R, Coadou G, Ravault D, Voisin-Chiret AS, Sopková-de Oliveira Santos J, Oulyadi H. Binding mode of Pyridoclax to myeloid cell leukemia-1 (Mcl-1) revealed by nuclear magnetic resonance spectroscopy, docking and molecular dynamics approaches. J Biomol Struct Dyn 2019; 38:4162-4178. [PMID: 31612791 DOI: 10.1080/07391102.2019.1680434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Myeloid cell leukemia-1 (Mcl-1) is an anti-apoptotic member of the Bcl-2 family proteins. Its amplification is one of the most frequent genetic aberrations found in human cancers. Pyridoclax, a promising BH3 mimetic inhibitor, interacts directly with Mcl-1 and induces massive apoptosis at a concentration of 15 µM in combination with anti-Bcl-xL strategies in chemo-resistant ovarian cancer cell lines. In this study, a combined experimental and theoretical approach was used to investigate the binding mode of Pyridoclax to Mcl-1. The representative poses generated from dynamics simulations compared with NMR data revealed: (i) Pyridoclax bound to P1 and P2 pockets of Mcl-1 BH3 binding groove through its styryl and methyl groups establishing mainly hydrophobic contacts, (ii) one of the ending pyridines interacts through electrostatic interaction with K234 side chain, a negatively charged residue present only in this position in Mcl-1. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- A Bourafai-Aziez
- CNRS Laboratoire COBRA (UMR 6014 & FR 3038), Normandie Université, UNIROUEN, INSA de Rouen, Rouen, France.,Normandie Université, UniCaen, CERMN, F-14000 Caen, France
| | - M Sebban
- CNRS Laboratoire COBRA (UMR 6014 & FR 3038), Normandie Université, UNIROUEN, INSA de Rouen, Rouen, France
| | | | - B Marekha
- Normandie Université, UniCaen, CERMN, F-14000 Caen, France
| | - C Denis
- Normandie Université, UniCaen, CERMN, F-14000 Caen, France
| | - H Paysant
- Normandie Université, UNICAEN, Inserm U1086 ANTICIPE « Interdisciplinary Research Unit for Cancer Prevention and Treatment », Biologie et Thérapies Innovantes des Cancers de l'ovaire (BioTICLA), Caen, France.,Centre de Lutte Contre le Cancer F. Baclesse, Unicancer, Caen, France
| | - L B Weiswald
- Normandie Université, UNICAEN, Inserm U1086 ANTICIPE « Interdisciplinary Research Unit for Cancer Prevention and Treatment », Biologie et Thérapies Innovantes des Cancers de l'ovaire (BioTICLA), Caen, France.,Centre de Lutte Contre le Cancer F. Baclesse, Unicancer, Caen, France
| | - L Carlier
- Laboratoire Des Biomolécules, LBM, Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Paris, France
| | - R Bureau
- Normandie Université, UniCaen, CERMN, F-14000 Caen, France
| | - G Coadou
- CNRS Laboratoire COBRA (UMR 6014 & FR 3038), Normandie Université, UNIROUEN, INSA de Rouen, Rouen, France
| | - D Ravault
- Laboratoire Des Biomolécules, LBM, Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Paris, France
| | | | | | - H Oulyadi
- CNRS Laboratoire COBRA (UMR 6014 & FR 3038), Normandie Université, UNIROUEN, INSA de Rouen, Rouen, France
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12
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Hu X, Guiseppi-Elie A, Dinu CZ. Biomolecular interfaces based on self-assembly and self-recognition form biosensors capable of recording molecular binding and release. NANOSCALE 2019; 11:4987-4998. [PMID: 30839012 DOI: 10.1039/c8nr10090j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This research proposed to create the next generation of versatile electrochemical-based biosensors capable of monitoring target capture and release as dictated by molecular binding or unbinding. The biosensor integrates cellular machines (i.e., microtubules, structural elements of cells and kinesin molecular motors involved in cellular transport) as functional units; its assembly is based on molecular self-assembly and self-recognition. Our results demonstrate that the designed biosensor was capable of allowing detection of binding and unbinding events based on redox reactions at user-controlled electrode interfaces. The analysis also showed that the sensitivity of the designed biosensor or its ability to record such events could be user-controlled at any given time by adjusting the energy source that "fuels" the system.
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Affiliation(s)
- Xiao Hu
- Department of Chemical and Biomedical Engineering, West Virginia University, WV, USA.
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13
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Durous L, Julien T, Padey B, Traversier A, Rosa-Calatrava M, Blum LJ, Marquette CA, Petiot E. SPRi-based hemagglutinin quantitative assay for influenza vaccine production monitoring. Vaccine 2019; 37:1614-1621. [DOI: 10.1016/j.vaccine.2019.01.083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/15/2019] [Accepted: 01/28/2019] [Indexed: 12/19/2022]
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14
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Abstract
The detection limits of impedance biosensors are dictated by the presence of background nonspecific binding, yet almost all the detection limits reported in the literature are determined using a clean buffer solution without confronting this real challenge. In this work, the authors employed the simplest "differential" impedance biosensor, composed of poly-l-lysine-polyethylene glycol-biotin-coated gold electrodes for the detection of streptavidin in the presence of 0.1% fetal calf serum, and studied the effect of the nonspecific binding on the performance of the differential impedance biosensing. The lowest streptavidin concentration detected by the system (5 μg/ml) was 1 order of magnitude higher (worse) than that from a previously demonstrated impedance biosensor where avidin was detected in the absence of background proteins. Interestingly, the origin of the differential signal was not due to the electrochemical properties of streptavidin itself but was that of the serum, where the coverage of the electrode by streptavidin indirectly modulated the electrical signal by suppressing the accessibility of the serum to the electrode.
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Solin K, Orelma H, Borghei M, Vuoriluoto M, Koivunen R, Rojas OJ. Two-Dimensional Antifouling Fluidic Channels on Nanopapers for Biosensing. Biomacromolecules 2019; 20:1036-1044. [PMID: 30576124 DOI: 10.1021/acs.biomac.8b01656] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Two-dimensional (hydrophilic) channels were patterned on films prepared from cellulose nanofibrils (CNF) using photolithography and inkjet printing. Such processes included UV-activated thiol-yne click coupling and inkjet-printed designs with polystyrene. The microfluidic channels were characterized (SEM, wetting, and fluid flow) and applied as platforms for biosensing. Compared to results from the click method, a better feature fidelity and flow properties were achieved with the simpler inkjet-printed channels. Human immunoglobulin G (hIgG) was used as target protein after surface modification with either bovine serum albumin (BSA), fibrinogen, or block copolymers of poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) and poly(oligo(ethylene glycol) methyl ether methacrylate) (POEGMA) (PDMAEMA- block-POEGMA copolymers). Surface plasmon resonance (SPR) and AFM imaging were used to determine their antifouling effect to prevent nonspecific hIgG binding. Confocal laser scanning microscopy revealed diffusion and adsorption traces in the channels. The results confirm an effective surface passivation of the microfluidic channels (95% reduction of hIgG adsorption and binding). The inexpensive and disposable systems proposed here allow designs with space-resolved blocking efficiency that offer a great potential in biosensing.
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Affiliation(s)
- Katariina Solin
- Department of Bioproducts and Biosystems, School of Chemical Engineering , Aalto University , Vuorimiehentie 1 , FI-00076 , Espoo , Finland
| | - Hannes Orelma
- VTT Technical Research Centre of Finland , Tietotie 4 , FIN-02044 VTT , Finland
| | - Maryam Borghei
- Department of Bioproducts and Biosystems, School of Chemical Engineering , Aalto University , Vuorimiehentie 1 , FI-00076 , Espoo , Finland
| | - Maija Vuoriluoto
- Department of Bioproducts and Biosystems, School of Chemical Engineering , Aalto University , Vuorimiehentie 1 , FI-00076 , Espoo , Finland
| | - Risto Koivunen
- Department of Bioproducts and Biosystems, School of Chemical Engineering , Aalto University , Vuorimiehentie 1 , FI-00076 , Espoo , Finland
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering , Aalto University , Vuorimiehentie 1 , FI-00076 , Espoo , Finland
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16
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Balo AR, Lee J, Ernst OP. Stationary Phase EPR Spectroscopy for Monitoring Membrane Protein Refolding by Conformational Response. Anal Chem 2018; 91:1071-1079. [DOI: 10.1021/acs.analchem.8b04542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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17
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Coty JB, Noiray M, Vauthier C. Assessment of Complement Activation by Nanoparticles: Development of a SPR Based Method and Comparison with Current High Throughput Methods. Pharm Res 2018; 35:129. [DOI: 10.1007/s11095-018-2406-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 04/10/2018] [Indexed: 10/17/2022]
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Oliverio M, Perotto S, Messina GC, Lovato L, De Angelis F. Chemical Functionalization of Plasmonic Surface Biosensors: A Tutorial Review on Issues, Strategies, and Costs. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29394-29411. [PMID: 28796479 PMCID: PMC5593307 DOI: 10.1021/acsami.7b01583] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 08/10/2017] [Indexed: 05/21/2023]
Abstract
In an ideal plasmonic surface sensor, the bioactive area, where analytes are recognized by specific biomolecules, is surrounded by an area that is generally composed of a different material. The latter, often the surface of the supporting chip, is generally hard to be selectively functionalized, with respect to the active area. As a result, cross talks between the active area and the surrounding one may occur. In designing a plasmonic sensor, various issues must be addressed: the specificity of analyte recognition, the orientation of the immobilized biomolecule that acts as the analyte receptor, and the selectivity of surface coverage. The objective of this tutorial review is to introduce the main rational tools required for a correct and complete approach to chemically functionalize plasmonic surface biosensors. After a short introduction, the review discusses, in detail, the most common strategies for achieving effective surface functionalization. The most important issues, such as the orientation of active molecules and spatial and chemical selectivity, are considered. A list of well-defined protocols is suggested for the most common practical situations. Importantly, for the reported protocols, we also present direct comparisons in term of costs, labor demand, and risk vs benefit balance. In addition, a survey of the most used characterization techniques necessary to validate the chemical protocols is reported.
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Affiliation(s)
- Manuela Oliverio
- Department of Health
Science, University Magna Graecia of Catanzaro, Viale Europa−Loc. Germaneto, 88100 Catanzaro, Italy
- Italian Institute of Technology, Via Morego 30, 16163 Genova, Italy
| | - Sara Perotto
- Italian Institute of Technology, Via Morego 30, 16163 Genova, Italy
- Department of Informatics,
Bioengineering, Robotics and Systems Engineering (DIBRIS), Università degli Studi di Genova, Via Balbi 5, 16126 Genova, Italy
| | | | - Laura Lovato
- Italian Institute of Technology, Via Morego 30, 16163 Genova, Italy
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Wang B, Park B, Xu B, Kwon Y. Label-free biosensing of Salmonella enterica serovars at single-cell level. J Nanobiotechnology 2017; 15:40. [PMID: 28514955 PMCID: PMC5436416 DOI: 10.1186/s12951-017-0273-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 05/08/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The emerging nanotechnologies have greatly facilitated the development of label-free biosensors. The atomic force microscopy (AFM) has been used to study the molecular mechanism of the reactions for protein and aptamers. The surface plasmon resonance (SPR) have been used in fast detections of various pathogens such as bacteria. This study used both AFM and SPR to investigate the complex reactions between aptamers and outer membrane proteins (OMPs) on the surface of S. typhimurium. RESULTS Two DNA aptamers were used for the label-free detections of S. typhimurium by AFM and SPR. The aptamers have specific binding affinities to the OMPs of S. typhimurium. At single-molecule level, the high resolution AFM topography and recognition images distinguished the OMPs on the bacteria surface, which is the first time the location of individual outer membrane protein have been determined on Salmonella surface. E. coli in the control experiments didn't generate recognition signals, which proved the specificity of these two aptamers to S. typhimurium. The off-rate values for the interactions of these two aptamers to the OMPs were estimated as 5.2 × 10-3 and 7.4 × 10-3 s-1, respectively, by the AFM dynamic force microscopy (DFS). The force and extension values form DFS measurements were used to distinguish the two aptamers. The surface membrane model was proposed to explain the complex correlations among force and extension values. Next, these two aptamers were used in the bulk solution detections of S. typhimurium. The gold chips in SPR experiments were modified with carboxymethylated-dextran (CD), followed by aptamers immobilization, to reduce the non-specific binding signals. The limit of detection (LOD) was determined as 3 × 104 CFU mL-1. CONCLUSIONS The AFM single-molecule study revealed detailed information about the unbinding force and extension of the aptamer in complex biological reactions. The careful analysis of the experimental results provide better understanding of the molecular mechanism of OMPs reactions. The single-molecule measurements are helpful in evaluating the specificity of binding reagents, such as aptamers, in bulk solution detections. The protocols used in the SPR detections can be expanded into the label-free detections of other bacterial pathogens.
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Affiliation(s)
- Bin Wang
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia, Athens, GA 30602 USA
| | - Bosoon Park
- USDA-ARS, U.S. National Poultry Research Center, Athens, GA 30605 USA
| | - Bingqian Xu
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia, Athens, GA 30602 USA
| | - Yongkuk Kwon
- Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
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20
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Jaworska A, Fornasaro S, Sergo V, Bonifacio A. Potential of Surface Enhanced Raman Spectroscopy (SERS) in Therapeutic Drug Monitoring (TDM). A Critical Review. BIOSENSORS-BASEL 2016; 6:bios6030047. [PMID: 27657146 PMCID: PMC5039666 DOI: 10.3390/bios6030047] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/07/2016] [Accepted: 09/09/2016] [Indexed: 12/17/2022]
Abstract
Surface-Enhanced Raman Spectroscopy (SERS) is a label-free technique that enables quick monitoring of substances at low concentrations in biological matrices. These advantages make it an attractive tool for the development of point-of-care tests suitable for Therapeutic Drug Monitoring (TDM) of drugs with a narrow therapeutic window, such as chemotherapeutic drugs, immunosuppressants, and various anticonvulsants. In this article, the current applications of SERS in the field of TDM for cancer therapy are discussed in detail and illustrated according to the different strategies and substrates. In particular, future perspectives are provided and special concerns regarding the standardization of self-assembly methods and nanofabrication procedures, quality assurance, and technology readiness are critically evaluated.
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Affiliation(s)
- Aleksandra Jaworska
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6a, 34127 Trieste, Italy.
| | - Stefano Fornasaro
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6a, 34127 Trieste, Italy.
| | - Valter Sergo
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6a, 34127 Trieste, Italy.
| | - Alois Bonifacio
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6a, 34127 Trieste, Italy.
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Soler M, Estevez MC, Villar-Vazquez R, Casal JI, Lechuga LM. Label-free nanoplasmonic sensing of tumor-associate autoantibodies for early diagnosis of colorectal cancer. Anal Chim Acta 2016; 930:31-8. [DOI: 10.1016/j.aca.2016.04.059] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 04/25/2016] [Accepted: 04/30/2016] [Indexed: 12/15/2022]
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22
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Kim S, Wark AW, Lee HJ. Femtomolar Detection of Tau Proteins in Undiluted Plasma Using Surface Plasmon Resonance. Anal Chem 2016; 88:7793-9. [PMID: 27399254 DOI: 10.1021/acs.analchem.6b01825] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The ability to directly detect Tau protein and other neurodegenerative biomarkers in human plasma at clinically relevant concentrations continues to be a significant hurdle for the establishment of diagnostic tests for Alzheimer's disease (AD). In this article, we introduce a new DNA aptamer/antibody sandwich assay pairing and apply it for the detection of human Tau 381 in undiluted plasma at concentrations as low as 10 fM. This was achieved on a multichannel surface plasmon resonance (SPR) platform with the challenge of working in plasma overcome through the development of a tailored mixed monolayer surface chemistry. In addition, a robust methodology was developed involving various same chip control measurements on reference channels to which the detection signal was normalized. Comparative measurements in plasma between SPR and enzyme-linked immunosorbent assay (ELISA) measurements were also performed to highlight both the 1000-fold performance enhancement of SPR and the ability to measure both spiked and native concentrations that are not achievable with ELISA.
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Affiliation(s)
- Suhee Kim
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University , 80 Daehakro, Buk-gu, Daegu-city, 41566, Republic of Korea
| | - Alastair W Wark
- WestCHEM, Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde , 99 George Street, Glasgow, G1 1RD, U.K
| | - Hye Jin Lee
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University , 80 Daehakro, Buk-gu, Daegu-city, 41566, Republic of Korea
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23
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Reynolds T, François A, Riesen N, Turvey ME, Nicholls SJ, Hoffmann P, Monro TM. Dynamic Self-Referencing Approach to Whispering Gallery Mode Biosensing and Its Application to Measurement within Undiluted Serum. Anal Chem 2016; 88:4036-40. [PMID: 26954108 DOI: 10.1021/acs.analchem.6b00365] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Biosensing within complex biological samples requires a sensor that can compensate for fluctuations in the signal due to changing environmental conditions and nonspecific binding events. To achieve this, we developed a novel self-referenced biosensor consisting of two almost identically sized dye-doped polystyrene microspheres placed on adjacent holes at the tip of a microstructured optical fiber (MOF). Here self-referenced biosensing is demonstrated with the detection of Neutravidin in undiluted, immunoglobulin-deprived human serum samples. The MOF allows remote excitation and collection of the whispering gallery modes (WGMs) of the microspheres while also providing a robust and easy to manipulate dip-sensing platform. By taking advantage of surface functionalization techniques, one microsphere acts as a dynamic reference, compensating for nonspecific binding events and changes in the environment (such as refractive index and temperature), while the other microsphere is functionalized to detect a specific interaction. The almost identical size allows the two spheres to have virtually identical refractive index sensitivity and surface area, while still having discernible WGM spectra. This ensures their responses to nonspecific binding and environmental changes are almost identical, whereby any specific changes, such as binding events, can be monitored via the relative movement between the two sets of WGM peaks.
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Affiliation(s)
| | | | | | | | - Stephen J Nicholls
- South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide , Adelaide SA 5000, Australia
| | | | - Tanya M Monro
- University of South Australia , Adelaide SA 5000, Australia
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24
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Du C, Zhang N, Ding S, Gao X, Guan P, Hu X. Preparation of highly cross-linked raspberry-like nano/microspheres and surface tailoring for controlled immunostimulating peptide adsorption. Polym Chem 2016. [DOI: 10.1039/c6py00747c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The surface functionalities of ionic liquid-functionalized nano/microspheres with a highly cross-linked raspberry-like structure could be well controlled by adjusting the functional chains appropriately.
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Affiliation(s)
- Chunbao Du
- Department of Applied Chemistry
- Key Laboratory of Space Applied Physics and Chemistry of Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Nan Zhang
- Department of Applied Chemistry
- Key Laboratory of Space Applied Physics and Chemistry of Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Shichao Ding
- Department of Applied Chemistry
- Key Laboratory of Space Applied Physics and Chemistry of Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Xumian Gao
- Department of Applied Chemistry
- Key Laboratory of Space Applied Physics and Chemistry of Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Ping Guan
- Department of Applied Chemistry
- Key Laboratory of Space Applied Physics and Chemistry of Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Xiaoling Hu
- Department of Applied Chemistry
- Key Laboratory of Space Applied Physics and Chemistry of Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi'an
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25
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Eletxigerra U, Martinez-Perdiguero J, Barderas R, Pingarrón JM, Campuzano S, Merino S. Surface plasmon resonance immunosensor for ErbB2 breast cancer biomarker determination in human serum and raw cancer cell lysates. Anal Chim Acta 2016; 905:156-62. [DOI: 10.1016/j.aca.2015.12.020] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/03/2015] [Accepted: 12/12/2015] [Indexed: 11/29/2022]
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26
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Wang B, Lou Z, Park B, Kwon Y, Zhang H, Xu B. Surface conformations of an anti-ricin aptamer and its affinity for ricin determined by atomic force microscopy and surface plasmon resonance. Phys Chem Chem Phys 2015; 17:307-14. [PMID: 25181753 DOI: 10.1039/c4cp03190c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
We used atomic force microscopy (AFM) and surface plasmon resonance (SPR) to study the surface conformations of an anti-ricin aptamer and its specific binding affinity for ricin molecules. The effect of surface modification of the Au(111) substrate on the aptamer affinity was also estimated. The AFM topography images had a resolution high enough to distinguish different aptamer conformations. The specific binding site on the aptamer molecule was clearly located by the AFM recognition images. The aptamer on a Au(111) surface modified with carboxymethylated-dextran (CD) showed both similarities to and differences from the one without CD modification. The influence of CD modification was evaluated using AFM images of various aptamer conformations on the Au(111) surface. The affinity between ricin and the anti-ricin aptamer was estimated using the off-rate values measured using AFM and SPR. The SPR measurements of the ricin sample were conducted in the range from 83.3 pM to 8.33 nM, and the limit of detection was estimated as 25 pM (1.5 ng mL(-1)). The off-rate values of the ricin-aptamer interactions were estimated using both single-molecule dynamic force spectroscopy (DFS) and SPR as (7.3 ± 0.4) × 10(-4) s(-1) and (1.82 ± 0.067) × 10(-2) s(-1), respectively. The results show that single-molecule measurements can obtain different reaction parameters from bulk solution measurements. In AFM single-molecule measurements, the various conformations of the aptamer immobilized on the gold surface determined the availability of each specific binding site to the ricin molecules. The SPR bulk solution measurements averaged the signals from specific and non-specific interactions. AFM images and DFS measurements provide more specific information on the interactions of individual aptamer and ricin molecules.
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Affiliation(s)
- B Wang
- Single Molecule Study Laboratory, Faculty of Engineering and Nanoscale Science and Engineering Center, University of Georgia, Athens, GA 30602, USA.
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27
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Zou Q, Kegel LL, Booksh KS. Electrografted Diazonium Salt Layers for Antifouling on the Surface of Surface Plasmon Resonance Biosensors. Anal Chem 2015; 87:2488-94. [DOI: 10.1021/ac504513a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qiongjing Zou
- Department of Chemistry and
Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Laurel L. Kegel
- Department of Chemistry and
Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Karl S. Booksh
- Department of Chemistry and
Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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28
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Lashkor M, Rawson FJ, Preece JA, Mendes PM. Switching specific biomolecular interactions on surfaces under complex biological conditions. Analyst 2014; 139:5400-8. [PMID: 25180245 PMCID: PMC4184031 DOI: 10.1039/c4an01225a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 08/21/2014] [Indexed: 01/11/2023]
Abstract
Herein, electrically switchable mixed self-assembled monolayers based on oligopeptides have been developed and investigated for their suitability in achieving control over biomolecular interactions in the presence of complex biological conditions. Our model system, a biotinylated oligopeptide tethered to gold within a background of tri(ethylene glycol) undecanethiol, is ubiquitous in both switching specific protein interactions in highly fouling media while still offering the non-specific protein-resistance to the surface. Furthermore, the work demonstrated that the performance of the switching on the electro-switchable oligopeptide is sensitive to the characteristics of the media, and in particular, its protein concentration and buffer composition, and thus such aspects should be considered and addressed to assure maximum switching performance. This study lays the foundation for developing more realistic dynamic extracellular matrix models and is certainly applicable in a wide variety of biological and medical applications.
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Affiliation(s)
- Minhaj Lashkor
- School of Chemical Engineering , University of Birmingham , Edgbaston , Birmingham , B15 2TT , UK .
| | - Frankie J. Rawson
- Laboratory of Biophysics and Surface Analysis , School of Pharmacy , University of Nottingham , University Park , Nottingham , NG 72RD , UK
| | - Jon A. Preece
- School of Chemistry , University of Birmingham , Edgbaston , Birmingham , B15 2TT , UK
| | - Paula M. Mendes
- School of Chemical Engineering , University of Birmingham , Edgbaston , Birmingham , B15 2TT , UK .
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29
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Nanostructuring of hierarchical 3D cystine flowers for high-performance electrochemical immunosensor. Biosens Bioelectron 2014; 61:328-35. [DOI: 10.1016/j.bios.2014.05.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 05/05/2014] [Accepted: 05/07/2014] [Indexed: 01/16/2023]
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30
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Lane JS, Richens JL, Vere KA, O'Shea P. Rational targeting of subclasses of intermolecular interactions: elimination of nonspecific binding for analyte sensing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:9457-9465. [PMID: 25046104 DOI: 10.1021/la5016548] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The ability to target and control intermolecular interactions is crucial in the development of several different technologies. Here we offer a tool to rationally design liquid media systems that can modulate specific intermolecular interactions. This has broad implications in deciphering the nature of intermolecular forces in complex solutions and offers insight into the forces that govern both specific and nonspecific binding in a given system. Nonspecific binding still continues to be a problem when dealing with analyte detection across a range of different detection technologies. Here, we exemplify the problem of nonspecific binding on model membrane systems and when dealing with low-abundance protein detection on commercially available SPR technology. A range of different soluble reagents that target specific subclasses of intermolecular interactions have been tested and optimized to virtually eliminate nonspecific binding while leaving specific interactions unperturbed. Thiocyanate ions are used to target nonpolar interactions, and small reagents such as glycylglycylglycine are used to modulate the dielectric constant, which targets charge-charge and dipole interactions. We show that with rational design and careful modulation these reagents offer a step forward in dissecting the intermolecular forces that govern binding, alongside offering nonspecific binding elimination in detection systems.
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Affiliation(s)
- Jordan S Lane
- Cell Biophysics Group, Institute of Biophysics, Imaging & Optical Science, School of Life Sciences, University of Nottingham , Nottingham, NG7 2RD United Kingdom
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31
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Label-free detection of endocrine disrupting chemicals by integrating a competitive binding assay with a piezoelectric ceramic resonator. Biosens Bioelectron 2014; 53:406-13. [DOI: 10.1016/j.bios.2013.09.068] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 09/26/2013] [Accepted: 09/27/2013] [Indexed: 11/30/2022]
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32
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Zhang B, Morales AW, Peterson R, Tang L, Ye JY. Label-free detection of cardiac troponin I with a photonic crystal biosensor. Biosens Bioelectron 2014; 58:107-13. [PMID: 24632136 DOI: 10.1016/j.bios.2014.02.057] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 02/20/2014] [Accepted: 02/22/2014] [Indexed: 10/25/2022]
Abstract
A biosensor has been developed with a photonic crystal structure used in a total-internal-reflection (PC-TIR) configuration for label-free detection of a cardiac biomarker: Troponin I (cTnI). In contrast to a conventional optical microcavity that has a closed structure with its cavity layer sandwiched between two high-reflection surfaces, the PC-TIR configuration creates a unique open microcavity, which allows its cavity layer (sensing layer) to be easily functionalized and directly exposed to analyte molecules for bioassays. In this study, a PC-TIR sensor has been used for the label-free measurements of cardiac biomarkers by monitoring the changes in the resonant condition of the cavity due to biomolecular binding processes. Antibodies against cTnI are immobilized on the sensor surface for specific detection of cTnI with a wide range of concentrations. Detection limit of cTnI with a concentration as low as 0.1ngmL(-1) has been achieved.
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Affiliation(s)
- Bailin Zhang
- Department of Biomedical Engineering, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Andres W Morales
- Department of Biomedical Engineering, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Ralph Peterson
- Department of Biomedical Engineering, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Liang Tang
- Department of Biomedical Engineering, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Jing Yong Ye
- Department of Biomedical Engineering, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA.
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33
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Jang HR, Wark AW, Baek SH, Chung BH, Lee HJ. Ultrasensitive and ultrawide range detection of a cardiac biomarker on a surface plasmon resonance platform. Anal Chem 2013; 86:814-9. [PMID: 24328254 DOI: 10.1021/ac4033565] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
One of the main challenges in the development of new analytical platforms for ultrasensitive bioaffinity detection is jointly achieving a wide dynamic range in target analyte concentration, especially for approaches that rely on multistep processes as a part of the signal amplification mechanism. In this paper, a new surface-based sandwich assay is introduced for the direct detection of B-type natriuretic peptide (BNP), an important biomarker for cardiac failure, at concentrations ranging from 1 aM to 500 nM. This was achieved using nanoparticle-enhanced surface plasmon resonance (SPR) where a DNA aptamer is immobilized on a chemically modified gold surface in conjunction with the specific adsorption of antiBNP coated gold nanocubes in the presence of the biomarker target. A concentration detection range greater than eleven orders of magnitude was achieved through dynamic control of only the secondary nanoparticle probe concentration. Furthermore, detection at low attomolar concentrations was also achieved in undiluted human serum.
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Affiliation(s)
- Hye Ri Jang
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University , 1370 Sankyuk-dong, Buk-gu, Daegu-city, 702-701, Republic of Korea
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Martinez-Perdiguero J, Retolaza A, Bujanda L, Merino S. Surface plasmon resonance immunoassay for the detection of the TNFα biomarker in human serum. Talanta 2013; 119:492-7. [PMID: 24401446 DOI: 10.1016/j.talanta.2013.11.063] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 11/20/2013] [Accepted: 11/23/2013] [Indexed: 11/15/2022]
Abstract
A simple method for the detection of TNF-alpha protein biomarker in human serum with great sensitivity has been developed using a surface plasmon resonance biosensor. Signal amplification based on a sandwich immunoassay including gold nanoparticles was used. Detection in serum proved to be challenging due to high undesirable non-specific binding to the sensor surface stemming from the matrix nature of the sample. After optimization of the assay parameters and, in the case of serum, of a sample dilution buffer to minimize the non-specific binding, very low limits of detection were achieved: 11.6 pg/mL (211 fM) and 54.4 pg/mL (989 fM) for spiked buffer and human serum respectively. The amplification steps with high affinity biotinylated antibodies and streptavidin-fuctionalized nanoparticles greatly enhanced the signal with the advantage of additional specificity. Due to its simplicity and sensitivity, the immunoassay has proved feasible to be used for detection of low concentration biomarkers in real samples.
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Affiliation(s)
| | - Aritz Retolaza
- CIC microGUNE, Arrasate-Mondragón, Spain; Micro-NanoFabrication Unit, IK4-Tekniker, Eibar, Spain
| | - Luis Bujanda
- Department of Gastroenterology, Hospital Donostia/Instituto Biodonostia, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universidad del País Vasco UPV/EHU, San Sebastián, Spain
| | - Santos Merino
- CIC microGUNE, Arrasate-Mondragón, Spain; Micro-NanoFabrication Unit, IK4-Tekniker, Eibar, Spain
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Hinterwirth H, Stübiger G, Lindner W, Lämmerhofer M. Gold Nanoparticle-Conjugated Anti-Oxidized Low-Density Lipoprotein Antibodies for Targeted Lipidomics of Oxidative Stress Biomarkers. Anal Chem 2013; 85:8376-84. [DOI: 10.1021/ac401778f] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Helmut Hinterwirth
- Department of Analytical Chemistry, University of Vienna, Währingerstrasse 38, 1090
Vienna, Austria
| | - Gerald Stübiger
- Center
of Physiology and Pharmacology, Medical University of Vienna, Schwarzspanierstraße
17, 1090 Vienna, Austria
| | - Wolfgang Lindner
- Department of Analytical Chemistry, University of Vienna, Währingerstrasse 38, 1090
Vienna, Austria
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences, University of Tübingen, Auf der Morgenstelle
8, 72076 Tübingen, Germany
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36
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Klaver AC, Coffey MP, Smith LM, Loeffler DA. Comparison of ELISA measurements of anti-Aβ concentrations and percentages of specific binding to Aβ between unfractionated intravenous immunoglobulin products and their purified anti-Aβ antibodies. Immunol Lett 2013; 154:7-11. [PMID: 23928186 DOI: 10.1016/j.imlet.2013.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 07/25/2013] [Indexed: 10/26/2022]
Abstract
Intravenous immunoglobulin (IVIG) products are being investigated as possible therapeutic agents for mild cognitive impairment and Alzheimer's disease (AD). Anti-Aβ antibodies have been measured by ELISA in unfractionated IVIG products and in affinity-purified antibodies from these products, but it is unclear if similar results are obtained with these two approaches. Measurements of anti-Aβ antibodies in unfractionated IVIG may be confounded by the presence of polyvalent antibodies which can bind to multiple antigens, including those on ELISA plates; whether this is an issue when measuring anti-Aβ antibodies in purified antibody eluates from IVIG is also unknown. The objective of this study was to clarify these issues. The concentrations of specific antibodies to Aβ1-42 monomer and the percentages of specific binding to it were compared via ELISA between three unfractionated IVIG products (Gamunex [Talecris], Gammagard [Baxter], and Flebogamma [Grifols]) and their affinity-purified anti-Aβ antibodies. The concentrations of anti-Aβ antibodies in unfractionated IVIG products were higher than in their respective purified anti-Aβ eluates, and the rank order of the IVIG products with respect to their anti-Aβ concentrations differed between the two types of samples. The percentages of specific binding to Aβ were lower for unfractionated IVIG than for purified anti-Aβ eluates. These findings indicate that ELISA measurements of specific anti-Aβ antibodies and percentages of specific binding to Aβ produce different results depending upon whether these measurements are made in unfractionated IVIG products or their purified anti-Aβ antibodies. Polyvalent binding occurs even with purified anti-Aβ antibodies eluated from IVIG products, but it is less extensive than with unfractionated IVIG.
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Affiliation(s)
- Andrea C Klaver
- Department of Neurology Research, Beaumont Health System, Royal Oak, MI, United States.
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Ratel M, Provencher-Girard A, Zhao SS, Breault-Turcot J, Labrecque-Carbonneau J, Branca M, Pelletier JN, Schmitzer AR, Masson JF. Imidazolium-based ionic liquid surfaces for biosensing. Anal Chem 2013; 85:5770-7. [PMID: 23706008 DOI: 10.1021/ac400386z] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ionic liquid self-assembled monolayers (SAM) were designed and applied for binding streptavidin, promoting affinity biosensing and enzyme activity on gold surfaces of sensors. The synthesis of 1-((+)-biotin)pentanamido)propyl)-3-(12-mercaptododecyl)-imidazolium bromide, a biotinylated ionic liquid (IL-biotin), which self-assembles on gold film, afforded streptavidin sensing with surface plasmon resonance (SPR). The IL-biotin-SAM efficiently formed a full streptavidin monolayer. The synthesis of 1-(carboxymethyl)-3-(mercaptododecyl)-imidazoliumbromide, a carboxylated IL (IL-COOH), was used to immobilize anti-IgG to create an affinity biosensor. The IL-COOH demonstrated efficient detection of IgG in the nanomolar concentration range, similar to the alkylthiols SAM and PEG. In addition, the IL-COOH demonstrated low fouling in crude serum, to a level equivalent to PEG. The IL-COOH was further modified with N,N'-bis (carboxymethyl)-l-lysine hydrate to bind copper ions and then, chelate histidine-tagged biomolecules. Human dihydrofolate reductase (hDHFR) was chelated to the modified IL-COOH. By monitoring enzyme activity in situ on the SPR sensor, it was revealed that the IL-COOH SAM improved the activity of hDHFR by 24% in comparison to classical SAM. Thereby, IL-SAM has been synthesized and successfully applied to three important biosensing schemes, demonstrating the advantages of this new class of monolayers.
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Affiliation(s)
- Mathieu Ratel
- Département de Chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montreal, Quebec, Canada H3C 3J7
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38
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Kegel LL, Menegazzo N, Booksh KS. Adsorbate–Metal Bond Effect on Empirical Determination of Surface Plasmon Penetration Depth. Anal Chem 2013; 85:4875-83. [DOI: 10.1021/ac400006j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Laurel L. Kegel
- Department of Chemistry and Biochemistry, University of Delaware, 002 Lammot Dupont Lab, Newark, Delaware 19716, United States
| | - Nicola Menegazzo
- Department of Chemistry and Biochemistry, University of Delaware, 002 Lammot Dupont Lab, Newark, Delaware 19716, United States
| | - Karl S. Booksh
- Department of Chemistry and Biochemistry, University of Delaware, 002 Lammot Dupont Lab, Newark, Delaware 19716, United States
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39
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Scholten A, Menges B, Juebner M, Rothschild MA, Bender K. A mixed alkanethiol based immunosensor for surface plasmon field-enhanced fluorescence spectroscopy in serum. Analyst 2013; 138:1705-12. [DOI: 10.1039/c3an35657d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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40
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Kurihara Y, Takama M, Sekiya T, Yoshihara Y, Ooya T, Takeuchi T. Fabrication of carboxylated silicon nitride sensor chips for detection of antigen-antibody reaction using microfluidic reflectometric interference spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:13609-13615. [PMID: 22966896 DOI: 10.1021/la302221y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this study, we report label-free detection of alpha-fetoprotein (AFP), which has been used as a biomarker for hepatocellular carcinoma, by a microfluidic reflectometric interference spectroscopy (RIfS) system adopting a simple halogen light source and an inexpensive silicon-based sensor chip. Introduction of carboxy groups on a silicon nitride sensor chip to immobilize anti-AFP monoclonal antibody (anti-AFP) was carried out simply by immersion in aqueous solution containing triethoxysilylpropylmaleamic acid bearing a carboxy group and a silanol group. The RIfS system with the anti-AFP-immobilized sensor chip was found to give a reversible response through 100 on/off cycles using a regeneration buffer with high reproducibility (coefficient of variation (CV) = 5.7%). The limit of detection (LOD) of AFP was 100 ng mL(-1), and the measurement range spanned 3 orders of magnitude. Furthermore, the sensor chip showed no cross-reactivity with human serum albumin, Immunoglobulin G, transferrin, or fibrinogen at 100 μg mL(-1) without the use of blocking reagents such as bovine serum albumin. Consequently, the proposed RIfS system is a potentially effective tool for biomarker detection and in vitro diagnostics.
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Affiliation(s)
- Yoshikazu Kurihara
- Graduate School of Engineering, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
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41
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Raz SR, Marchesini GR, Bremer MGEG, Colpo P, Garcia CP, Guidetti G, Norde W, Rossi F. Nanopatterned submicron pores as a shield for nonspecific binding in surface plasmon resonance-based sensing. Analyst 2012; 137:5251-9. [DOI: 10.1039/c2an35521c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Menegazzo N, Zou Q, Booksh KS. Characterization of electrografted 4-aminophenylalanine layers for low non-specific binding of proteins. NEW J CHEM 2012. [DOI: 10.1039/c2nj20930f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Choi S, Goryll M, Sin LYM, Wong PK, Chae J. Microfluidic-based biosensors toward point-of-care detection of nucleic acids and proteins. MICROFLUIDICS AND NANOFLUIDICS 2011; 10:231-247. [PMID: 32214951 PMCID: PMC7087901 DOI: 10.1007/s10404-010-0638-8] [Citation(s) in RCA: 133] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2010] [Accepted: 04/26/2010] [Indexed: 05/14/2023]
Abstract
This article reviews state-of-the-art microfluidic biosensors of nucleic acids and proteins for point-of-care (POC) diagnostics. Microfluidics is capable of analyzing small sample volumes (10-9-10-18 l) and minimizing costly reagent consumption as well as automating sample preparation and reducing processing time. The merger of microfluidics and advanced biosensor technologies offers new promises for POC diagnostics, including high-throughput analysis, portability and disposability. However, this merger also imposes technological challenges on biosensors, such as high sensitivity and selectivity requirements with sample volumes orders of magnitude smaller than those of conventional practices, false response errors due to non-specific adsorption, and integrability with other necessary modules. There have been many prior review articles on microfluidic-based biosensors, and this review focuses on the recent progress in last 5 years. Herein, we review general technologies of DNA and protein biosensors. Then, recent advances on the coupling of the biosensors to microfluidics are highlighted. Finally, we discuss the key challenges and potential solutions for transforming microfluidic biosensors into POC diagnostic applications.
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Affiliation(s)
- Seokheun Choi
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85287 USA
| | - Michael Goryll
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85287 USA
| | - Lai Yi Mandy Sin
- Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, AZ 85721 USA
| | - Pak Kin Wong
- Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, AZ 85721 USA
| | - Junseok Chae
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85287 USA
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44
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Bolduc OR, Pelletier JN, Masson JF. SPR Biosensing in Crude Serum Using Ultralow Fouling Binary Patterned Peptide SAM. Anal Chem 2010; 82:3699-706. [DOI: 10.1021/ac100035s] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Olivier R. Bolduc
- Département de Chimie, PROTEO Network for Protein Structure, Function and Engineering, Centre for Self-Assembled Chemical Structures (CSACS), and Centre for Biorecognition and Biosensors (CBB), Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada, H3C 3J7
| | - Joelle N. Pelletier
- Département de Chimie, PROTEO Network for Protein Structure, Function and Engineering, Centre for Self-Assembled Chemical Structures (CSACS), and Centre for Biorecognition and Biosensors (CBB), Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada, H3C 3J7
| | - Jean-François Masson
- Département de Chimie, PROTEO Network for Protein Structure, Function and Engineering, Centre for Self-Assembled Chemical Structures (CSACS), and Centre for Biorecognition and Biosensors (CBB), Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada, H3C 3J7
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45
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Wang Y, El-Boubbou K, Kouyoumdjian H, Sun B, Huang X, Zeng X. Lipoic acid glyco-conjugates, a new class of agents for controlling nonspecific adsorption of blood serum at biointerfaces for biosensor and biomedical applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:4119-25. [PMID: 19968241 PMCID: PMC3072268 DOI: 10.1021/la903261j] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The carbohydrate-derived lipoic acid derivatives were studied as protein and cell resistant biomaterials. Six types of carbohydrates were examined for their abilities to reduce nonspecific adsorption of human serum and Hela cell using quartz crystal microbalance. Our data suggested that the structures of carbohydrates play an important role in resisting nonspecific binding. Specifically, the resistance was found to increase in the order lipoic fucose < lipoic mannose < lipoic N-acetyl glucosamine < lipoic glucose < lipoic sialic acid < lipoic galactose, where lipoic galactose derivative resisted most nonspecific adsorption. Furthermore, the combination of lipoic galactose and BSA was the most effective in reducing the adsorption of even undiluted human serum and the attachment of Hela cells while allowing specific binding. Several control experiments have demonstrated that the resistant-ability of mixed lipoic galactose and BSA was comparable to the best known system for decreasing nonspecific adsorption.
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Affiliation(s)
- Yanyan Wang
- Chemistry Department, Oakland University, Rochester, Michigan 48309, USA
- The key Laboratory of Bioactive Materials Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | | | - Hovig Kouyoumdjian
- Chemistry Department, Michigan State University, East Lansing, Michigan, 48824 USA
| | - Bin Sun
- Chemistry Department, Michigan State University, East Lansing, Michigan, 48824 USA
| | - Xuefei Huang
- Chemistry Department, Michigan State University, East Lansing, Michigan, 48824 USA
| | - Xiangqun Zeng
- Chemistry Department, Oakland University, Rochester, Michigan 48309, USA
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46
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Miller AE, Hollars CW, Lane SM, Laurence TA. Fluorescence cross-correlation spectroscopy as a universal method for protein detection with low false positives. Anal Chem 2009; 81:5614-22. [PMID: 19522509 DOI: 10.1021/ac9001645] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Specific, quantitative, and sensitive protein detection with minimal sample preparation is an enduring need in biology and medicine. Protein detection assays ideally provide quick, definitive measurements that use only small amounts of material. Fluorescence cross-correlation spectroscopy (FCCS) has been proposed and developed as a protein detection assay for several years. Here, we combine several recent advances in FCCS apparatus and analysis to demonstrate it as an important method for sensitive, quantitative, information-rich protein detection with low false positives. The addition of alternating laser excitation (ALEX) to FCCS along with a method to exclude signals from occasional aggregates leads to a very low rate of false positives, allowing the detection and quantification of the concentrations of a wide variety of proteins. We detect human chorionic gonadotropin (hCG) using an antibody-based sandwich assay and quantitatively compare our results with calculations based on binding equilibrium equations. Furthermore, using our aggregate exclusion method, we detect smaller oligomers of the prion protein PrP by excluding bright signals from large aggregates.
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Affiliation(s)
- Abigail E Miller
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, USA
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47
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Bolduc OR, Clouthier CM, Pelletier JN, Masson JF. Peptide Self-Assembled Monolayers for Label-Free and Unamplified Surface Plasmon Resonance Biosensing in Crude Cell Lysate. Anal Chem 2009; 81:6779-88. [DOI: 10.1021/ac900956y] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Olivier R. Bolduc
- Département de Chimie, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada, H3C 3J7
| | - Christopher M. Clouthier
- Département de Chimie, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada, H3C 3J7
| | - Joelle N. Pelletier
- Département de Chimie, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada, H3C 3J7
| | - Jean-François Masson
- Département de Chimie, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada, H3C 3J7
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48
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Bolduc OR, Masson JF. Monolayers of 3-mercaptopropyl-amino acid to reduce the nonspecific adsorption of serum proteins on the surface of biosensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:12085-91. [PMID: 18823086 DOI: 10.1021/la801861q] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Monolayers prepared with polar or ionic amino acids with short side chains have a reduced nonspecific adsorption of serum proteins compared to that of hydrophobic amino acids and organic monolayers immobilized on the gold surface of surface plasmon resonance (SPR) biosensors. Proteins contained in biological samples adsorb on most surfaces, which in the case of biosensors causes a nonspecific response that hinders the quantification of biomarkers in these biological samples. To circumvent this problem, self-assembled monolayers (SAM) of N-3-mercaptopropyl-amino acids (3-MPA-amino acids) were prepared from 19 natural amino acids. These SAM were investigated to limit the nonspecific adsorption of proteins contained in biological fluids and to immobilize molecular receptors (i.e., antibodies) that are necessary in the construction of biosensors. SPR and Ge attenuated total reflection (GATR) FTIR spectroscopy were employed to characterize the formation of the amino acid SAMs. Monolayers of 3-MPA-amino acids densely packed on the surface of the SPR biosensors result in a surface concentration of approximately 10 (15) molecules/cm (2). SPR also quantifies the surface concentration of serum proteins nonspecifically adsorbed on 3-MPA-amino acids following the exposure of the biosensor to undiluted bovine serum. The concentration of nonspecifically bound proteins ranged from approximately 400 ng/cm (2) with polar and ionic amino acids to approximately 800 ng/cm (2) with amino acids of increased hydrophobicity. The nonspecific adsorption of serum proteins on the 3-MPA-amino acids increases in the following order: Asp < Asn < Ser < Met < Glu < Gln < Thr < Gly < His < Cys < Arg < Phe < Trp < Val < Pro < Ile < Leu < Ala < Tyr. The analysis of the adsorption and desorption curves for serum proteins on the SPR sensorgram has demonstrated the strong irreversibility of the protein adsorption on each surface. The effective hydrophilicity of the SAMs was measured from the contact angle with a saline buffer and has demonstrated that surfaces minimizing the contact angle with PBS performed better in serum. The antibody for beta-lactamase was immobilized on a 3-MPA-glycine SAM, and beta-lactamase was detected in the nanomolar range. The presence of beta-lactamase is an indicator of antibiotic resistance.
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Affiliation(s)
- Olivier R Bolduc
- Département de Chimie, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
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49
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Conductometric immunoassay for interleukin-6 in human serum based on organic/inorganic hybrid membrane-functionalized interface. Bioprocess Biosyst Eng 2008; 32:353-9. [DOI: 10.1007/s00449-008-0254-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2008] [Accepted: 07/23/2008] [Indexed: 12/29/2022]
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50
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Baldrich E, Laczka O, Del Campo FJ, Muñoz FX. Gold immuno-functionalisation via self-assembled monolayers: study of critical parameters and comparative performance for protein and bacteria detection. J Immunol Methods 2008; 336:203-12. [PMID: 18534611 DOI: 10.1016/j.jim.2008.04.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2007] [Revised: 04/22/2008] [Accepted: 04/23/2008] [Indexed: 11/26/2022]
Abstract
Surface functionalisation is of extreme importance in assay and biosensor development because it ensures the selective capture and detection of the targets of interest. In the present report, we compare the performance of several gold functionalisation strategies/chemistries, based on SAM self-assembly and Ab conjugation, for protein and bacteria detection. The first part of the work summarises the optimisation of the various protocols considered. Their efficiency was initially evaluated in terms of reduction of biomolecule non-specific adsorption and specific detection competence impairment, using as a model-target an enzyme-labelled protein. With this purpose, the effect of several parameters, such as thiomolecule length and concentration, self-assembly time and temperature, polymer incorporation, or Ab conjugation strategy was determined. The three best performing strategies consisted of antibody (Ab) conjugation to self-assembled monolayers (SAM) containing mercaptoundecanoic acid alone, or conjugated to either long-chain hydrophilic diamines or CM-dextran. In the three cases, results demonstrated that Abs had been successfully incorporated and remained functional for protein detection. Nevertheless, as showed in the second part of the work, we demonstrate for the first time that these chemistries can be inadequate for bacteria detection. The possible reasons and implications will be discussed. Ab physisorption is proposed as a cost-effective gold immuno-functionalisation strategy alternative to SAM-based Ab incorporation for bacteria detection.
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Affiliation(s)
- Eva Baldrich
- Instituto de Microelectrónica de Barcelona (IMB-CNM), CSIC, Esfera UAB, Campus Universitat Autónoma de Barcelona, Barcelona 08193, Spain.
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