101
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Yang L, Fan D, Zhang Y, Ding C, Wu D, Wei Q, Ju H. Ferritin-Based Electrochemiluminescence Nanosurface Energy Transfer System for Procalcitonin Detection Using HWRGWVC Heptapeptide for Site-Oriented Antibody Immobilization. Anal Chem 2019; 91:7145-7152. [DOI: 10.1021/acs.analchem.9b00325] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lei Yang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Dawei Fan
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Yong Zhang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Caifeng Ding
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Dan Wu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Huangxian Ju
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
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102
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Abstract
Crosslinking of proteins for their irreversible immobilization on surfaces is a proven and popular method. However, many protocols lead to random orientation and the formation of undefined or even inactive by-products. Most concepts to obtain a more targeted conjugation or immobilization requires the recombinant modification of at least one binding partner, which is often impractical or prohibitively expensive. Here a novel method is presented, which is based on the chemical preactivation of Protein A or G with selected conventional crosslinkers. In a second step, the antibody is added, which is subsequently crosslinked in the Fc part. This leads to an oriented and covalent immobilization of the immunoglobulin with a very high yield. Protocols for Protein A and Protein G with murine and human IgG are presented. This method may be useful for the preparation of columns for affinity chromatography, immunoprecipitation, antibodies conjugated to magnetic particles, permanent and oriented immobilization of antibodies in biosensor systems, microarrays, microtitration plates or any other system, where the loss of antibodies needs to be avoided, and maximum binding capacity is desired. This method is directly applicable even to antibodies in crude cell culture supernatants, raw sera or protein-stabilized antibody preparations without any purification nor enrichment of the IgG. This new method delivered much higher signals as a traditional method and, hence, seems to be preferable in many applications.
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103
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Site-specific immobilization of lysozyme upon affinity chromatography resin by forecasting lysine activity and controlling pH and epoxy group density. J Chromatogr A 2019; 1592:192-196. [DOI: 10.1016/j.chroma.2019.02.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 02/25/2019] [Accepted: 02/27/2019] [Indexed: 12/13/2022]
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104
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Duran B, Castañeda E, Armijo F. Development of an electrochemical impedimetric immunosensor for Corticotropin Releasing Hormone (CRH) using half-antibody fragments as elements of biorecognition. Biosens Bioelectron 2019; 131:171-177. [DOI: 10.1016/j.bios.2019.02.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/05/2019] [Accepted: 02/12/2019] [Indexed: 12/31/2022]
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105
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An impedimetric biosensor for E. coli O157:H7 based on the use of self-assembled gold nanoparticles and protein G. Mikrochim Acta 2019; 186:169. [DOI: 10.1007/s00604-019-3282-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 01/23/2019] [Indexed: 10/27/2022]
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106
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Charnley M, Ludford-Menting M, Pham K, Russell SM. A new role for Notch in the control of polarity and asymmetric cell division of developing T cells. J Cell Sci 2019; 133:jcs.235358. [DOI: 10.1242/jcs.235358] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/20/2019] [Indexed: 12/28/2022] Open
Abstract
A fundamental question in biology is how single cells can reliably produce progeny of different cell types. Notch signalling frequently facilitates fate determination. Asymmetric cell division (ACD) often controls segregation of Notch signalling by imposing unequal inheritance of regulators of Notch. Here, we assessed the functional relationship between Notch and ACD in mouse T cell development. To attain immunological specificity, developing T cells must pass through a pivotal stage termed β-selection, which involves Notch signalling and ACD. We assessed functional interactions between Notch1 and ACD during β-selection using direct presentation of Notch ligands, DL1 and DL4, and pharmacological inhibition of Notch signalling. Contrary to prevailing models, we demonstrate that Notch controls the distribution of Notch1 itself and cell fate determinants, α-Adaptin and Numb. Further, Notch and CXCR4 signalling cooperated to drive polarity during division. Thus, Notch signalling directly orchestrates ACD, and Notch1 is differentially inherited by sibling cells.
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Affiliation(s)
- Mirren Charnley
- Centre for Micro-Photonics, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- Biointerface Engineering, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, Parkville, Victoria 3000, Australia
| | - Mandy Ludford-Menting
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, Parkville, Victoria 3000, Australia
| | - Kim Pham
- Centre for Micro-Photonics, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, Parkville, Victoria 3000, Australia
- Department of Pathology, The University of Melbourne, Parkville, Victoria 3010, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Sarah M. Russell
- Centre for Micro-Photonics, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, Parkville, Victoria 3000, Australia
- Department of Pathology, The University of Melbourne, Parkville, Victoria 3010, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Victoria 3010, Australia
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107
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Amine functional magnetic nanoparticles via waterborne thiol-ene suspension photopolymerization for antibody immobilization. Colloids Surf B Biointerfaces 2018; 170:122-128. [PMID: 29894832 DOI: 10.1016/j.colsurfb.2018.05.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 05/07/2018] [Accepted: 05/26/2018] [Indexed: 12/27/2022]
Abstract
The modification of magnetic nanoparticles (MNPs) via different routes for biomolecule binding is an attractive area of research. Waterborne thiol-ene suspension photopolymerization (TESP) can be a useful method for preparing functional MNPs. In this study, for the very first time waterborne TESP was performed in the presence of MNPs. Neat MNPs were coated and in situ functionalized with amine groups by using thiol-ene chemistry. Engrailed-2 (EN2) protein, a potential biomarker for various cancers such as prostate cancer, bladder cancer, breast cancer and ovarian cancer, is known to be a strong binder to a specific DNA sequence (50-TAATTA-30) to regulate transcription. Anti-EN2 antibodies were immobilized onto these MNPs by physical adsorption and covalent bonding methods, respectively. The amount of the physically immobilized antibodies (0.54 mg/g) were found to be lower than the loading of the covalently bonded antibodies (1.775 mg/g). The biomarker level in the artificial solutions prepared was determined by enzyme-linked immunosorbent assay. Coated MNPs were characterized by FTIR, TGA, SEM and STEM. After TESP, the average diameter of the neat magnetite nanoparticles increased from ∼15 nm to ∼32 nm.
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108
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Bonaiuto E, Magro M, Fasolato L, Novelli E, Shams S, Piccirillo A, Bakhshi B, Moghadam TT, Baratella D, Vianello F. Versatile nano-platform for tailored immuno-magnetic carriers. Anal Bioanal Chem 2018; 410:7575-7589. [PMID: 30267275 DOI: 10.1007/s00216-018-1382-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 09/05/2018] [Accepted: 09/14/2018] [Indexed: 12/19/2022]
Abstract
Custom immuno-magnetic devices are desirable tools for biomedical and biotechnological applications. Herein, surface active maghemite nanoparticles (SAMNs) are proposed as a versatile platform for developing tailored immuno-magnetic nano-carriers by simple wet reactions. Two examples for conjugating native and biotinylated antibodies were presented along with their successful applications in the recognition of specific foodborne pathogens. Nanoparticles were functionalized with rhodamine B isothiocyanate (RITC), leading to a fluorescent nano-conjugate, and used for binding anti-Campylobacter fetus antibodies (SAMN@RITC@Anti-Cf). The microorganism was selectively captured in the presence of two other Campylobacter species (C. jejuni and C. coli), as verified by PCR. Alternatively, SAMNs were modified with avidin, forming a biotin-specific magnetic nano-carrier and used for the immobilization of biotinylated anti-Listeria monocytogenes antibodies (SAMN@avidin@Anti-Lm). This immuno-magnetic carrier was integrated in piezoelectric quartz crystal microbalance (QCM) sensor for the detection of L. monocytogenes in milk, showing a detection limit of 3 bacterial cells. The present work presents a new category of customized immuno-magnetic nano-carriers as a competitive option for suiting specific applications. Graphical abstract ᅟ.
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Affiliation(s)
- Emanuela Bonaiuto
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020, Legnaro, PD, Italy
| | - Massimiliano Magro
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020, Legnaro, PD, Italy.,Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Luca Fasolato
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020, Legnaro, PD, Italy
| | - Enrico Novelli
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020, Legnaro, PD, Italy
| | - Saeed Shams
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020, Legnaro, PD, Italy.,Cellular and Molecular Research Center, Qom University of Medical Sciences, No. 83, 4th Alley, 1.1th Alley, Safashahr St., Qom, Iran
| | - Alessandra Piccirillo
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020, Legnaro, PD, Italy
| | - Bita Bakhshi
- Department of Medical Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Al Ahmad Street, No. 7, Jalal, P.O. Box: 14115-111, Tehran, Iran
| | - Tahereh Tohidi Moghadam
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Jalal AleAhmad, Nasr, P.O.Box: 14115-111, Tehran, Iran
| | - Davide Baratella
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020, Legnaro, PD, Italy
| | - Fabio Vianello
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020, Legnaro, PD, Italy.
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109
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Paloni JM, Miller EA, Sikes HD, Olsen BD. Improved Ordering in Low Molecular Weight Protein-Polymer Conjugates Through Oligomerization of the Protein Block. Biomacromolecules 2018; 19:3814-3824. [PMID: 30132651 DOI: 10.1021/acs.biomac.8b00928] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The self-assembly of protein-polymer conjugates incorporating oligomers of a small, engineered high-affinity binding protein, rcSso7d.SA, is studied to determine the effect of protein oligomerization on nanoscale ordering. Oligomerization enables a systematic increase in the protein molar mass without changing its overall folded structure, leading to a higher driving force for self-assembly into well-ordered structures. Though conjugates of monomeric rcSso7d.SA are found to only exist in disordered states, oligomers of this protein linked to a poly( N-isopropylacrylamide) (PNIPAM) block self-assemble into lamellar nanostructures. Conjugates of trimeric and tetrameric rcSso7d.SA are observed to produce the strongest ordering in concentrated solution, displaying birefringent lamellae at concentrations as low as 40 wt %. In highly concentrated solution, the oligomeric rcSso7d.SA-PNIPAM block copolymers exhibit ordering and domain spacing trends atypical from that of most block copolymers. Fluorescent binding assays indicate that oligomerized protein blocks retain binding functionality and exhibit limits of detection up to three times lower than that of surface-immobilized protein sensors. Therefore, oligomerization of the protein block in these block copolymers serves as an effective method to improve both nanoscale ordering and biosensing capabilities.
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Affiliation(s)
- Justin M Paloni
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Eric A Miller
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Hadley D Sikes
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Bradley D Olsen
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
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110
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Feng C, Liu Y, Ren CL. Temperature-regulated protein adsorption on a PNIPAm layer. SOFT MATTER 2018; 14:6521-6529. [PMID: 30051118 DOI: 10.1039/c8sm01024b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In immunosensors, antibody orientation is a key factor that determines the sensitivity of a device. To date much effort has been devoted to exploring strategies for the direct control of the orientation of antibodies immobilized on a bioactive surface, but less attention has been paid to controlling the orientation of intermediate proteins (though usually used when immobilizing antibodies), which may greatly limit the sensitivity of immunological activities. Therefore, it is of great significance to seek novel methods for controlling protein orientation. Here, we design a new strategy for controlling protein orientation. The main idea is to bind proteins to a ligand-functionalized poly(N-isopropylacrylamide) (PNIPAm) layer, and then the protein orientation can be mediated by environmental temperature. The theory predicts that the protein orientation can show unexpected triple-thermo-responsive behavior. Based on the fraction of ligand adsorbed by the protein, the reponsive behavior can be either complete adsorption or partial adsorption, which is determind by the polymer's surface coverage and the protein's properties. We expect that the present strategy can enrich the methods for controlling intermediate protein orientation and can guide the design of novel immunosensors with superior sensitivity.
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Affiliation(s)
- Chao Feng
- State Key Laboratory of Metastable Materials Science & Technology and Hebei Key Laboratory of Microstructural Material Physics, School of Science, Yanshan University, Qinhuangdao, 066004, China.
| | - Yong Liu
- State Key Laboratory of Metastable Materials Science & Technology and Hebei Key Laboratory of Microstructural Material Physics, School of Science, Yanshan University, Qinhuangdao, 066004, China.
| | - Chun-Lai Ren
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, China. and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
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111
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Shoute LCT, Anwar A, MacKay S, Abdelrasoul GN, Lin D, Yan Z, Nguyen AH, McDermott MT, Shah MA, Yang J, Chen J, Li XS. Immuno-impedimetric Biosensor for Onsite Monitoring of Ascospores and Forecasting of Sclerotinia Stem Rot of Canola. Sci Rep 2018; 8:12396. [PMID: 30120328 PMCID: PMC6098051 DOI: 10.1038/s41598-018-30167-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 07/01/2018] [Indexed: 12/01/2022] Open
Abstract
Sclerotinia stem rot, caused by the fungal pathogen Sclerotinia sclerotiorum, is a destructive disease of canola and many other broadleaf crops. The primary inoculum responsible for initiating Sclerotinia epidemics is airborne ascospores released from the apothecia of sclerotia. Timely detection of the presence of airborne ascospores can serve as an early-warning system for forecasting and management of the disease. A major challenge is to develop a portable and automated device which can be deployed onsite to detect and quantify the presence of minute quantities of ascospores in the air and serves as a unit in a network of systems for forecasting of the epidemic. In this communication, we present the development of an impedimetric non-Faradaic biosensor based on anti-S. sclerotiorum polyclonal antibodies as probes to selectively capture the ascospores and sense their binding by an impedance based interdigitated electrode which was found to directly and unambiguously correlate the number of ascospores on sensor surface with the impedance response.
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Affiliation(s)
- Lian C T Shoute
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Afreen Anwar
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
- Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India
| | - Scott MacKay
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Gaser N Abdelrasoul
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Donghai Lin
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Zhimin Yan
- National Institute for Nanotechnology, National Research Council, Edmonton, AB, T6G 2M9, Canada
| | - Anh H Nguyen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Mark T McDermott
- National Institute for Nanotechnology, National Research Council, Edmonton, AB, T6G 2M9, Canada
- Department of Chemistry, University of Alberta, Edmonton, AB, T6G 2E9, Canada
| | - Manzoor A Shah
- Department of Botany, University of Kashmir, Srinagar, 190006, J&K, India
| | - Jian Yang
- InnoTech Alberta, Vegreville, AB, T9C 1T4, Canada
| | - Jie Chen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
- Department of Biomedical Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
- National Institute for Nanotechnology, National Research Council, Edmonton, AB, T6G 2M9, Canada
| | - Xiujie S Li
- InnoTech Alberta, Vegreville, AB, T9C 1T4, Canada.
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112
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Gulati P, Kaur P, Rajam MV, Srivastava T, Mishra P, Islam SS. Single-wall carbon nanotube based electrochemical immunoassay for leukemia detection. Anal Biochem 2018; 557:111-119. [PMID: 30048629 DOI: 10.1016/j.ab.2018.07.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 07/02/2018] [Accepted: 07/22/2018] [Indexed: 01/09/2023]
Abstract
A label-free electrochemical immunosensor is fabricated using high quality single-walled carbon nanotube for early detection of leukemia cells. It is based on P-glycoprotein (P-gp) expression level detection; by effective surface immune-complex formation with the monoclonal anti-P-glycoprotein antibodies bound to an epoxy modified nanotube surface. The expression level of P-gp on the leukemia cell surface detected by cyclic voltammetry is in good agreement with immunofluorescence microscopy studies. The proposed biosensor could be used for the detection of P-gp expressing cells within a linear range of 1.5 × 103 cells/mL - 1.5 × 107 cells/mL where lowest detection limit is found to be 19 cells/mL. A calibration plot of peak current v/s the logarithm of concentration of leukemia K562 cells is found linear with a regression coefficient of 0.935. This strategy promises high sensitivity, low-cost, fast, and repeatable recognition of cancer cells. The immunosensor was stable for three weeks and showed good precision with the relative standard deviation (RSD) of 3.57% and 2.12% assayed at the cell concentrations of 1.5 × 103 and 1.5 × 105 cells mL-1 respectively. The proposed single-wall carbon nanotube based immunosensor showed better analytical performance in comparison to similar leukemia electrochemical sensors reported.
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Affiliation(s)
- Payal Gulati
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Prabhjot Kaur
- Department of Genetics, Delhi University, New Delhi, India
| | - M V Rajam
- Department of Genetics, Delhi University, New Delhi, India
| | | | - Prabhash Mishra
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia (A Central University), New Delhi, India
| | - S S Islam
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia (A Central University), New Delhi, India.
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113
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A rapid magnetic particle-based enzyme immunoassay for human cytomegalovirus glycoprotein B quantification. J Pharm Biomed Anal 2018; 156:372-378. [DOI: 10.1016/j.jpba.2018.04.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 04/11/2018] [Accepted: 04/13/2018] [Indexed: 11/23/2022]
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114
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Lin MJ, Liu YF, Wu CC. An impedimetric bioaffinity sensing chip integrated with the long-range DC-biased AC electrokinetic centripetal vortex produced in a high conductivity solution. BIOMICROFLUIDICS 2018; 12:044102. [PMID: 30034565 PMCID: PMC6035051 DOI: 10.1063/1.5040231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/25/2018] [Indexed: 06/02/2023]
Abstract
Immunoreaction of specific antibodies to antigens is widely used in numerous immunoanalysis applications. However, diffusion-dominated transport in stationary solutions limits the rate and binding density of immunoreaction. This research describes the construction of chip-type concentric multi-double ring electrodes and single central disk electrode. A +1 V-biased 6 Vpp voltage was applied to the multi-double ring electrodes to induce a long-range DC-biased AC electrokinetic flow (ACEKF). The immunoreaction was quantified by electrochemical impedance spectrum (EIS). Fluorescence-labeled secondary antibody (FLSA) and protein A were exemplified as an immunoreacting model to demonstrate the effect of ACEKF on immunoreaction efficiency. The results showed that FLSA binding can reach a plateau in 8 min with the DC-biased ACEKF vortex, and the increment of electron transfer resistance is 2.26 times larger than that obtained in the unstirred solution. The sensitivity of the calibration curves obtained by EIS detection with the aid of DC-biased ACEKF vortex is 1.51 times larger than that obtained in an unstirred solution. The label-free EIS-based sensing chip integrated with the long-range DC-biased ACEKF vortex promises to facilitate immunoreaction efficiency, which is beneficial for the development of a miniature and fast-detection in vitro diagnostic device.
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Affiliation(s)
- Ming-Jie Lin
- Department of Bio-industrial Mechatronics Engineering, National Chung Hsing University, No. 145, Xingda Rd., South Dist., Taichung City 402, Taiwan
| | - Yen-Fu Liu
- Department of Bio-industrial Mechatronics Engineering, National Chung Hsing University, No. 145, Xingda Rd., South Dist., Taichung City 402, Taiwan
| | - Ching-Chou Wu
- Author to whom correspondence should be addressed: , Tel.: +886-4-2285-1268, Fax: +886-4-2287-9351
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115
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Wuethrich A, Sina AAI, Ahmed M, Lin TY, Carrascosa LG, Trau M. Interfacial nano-mixing in a miniaturised platform enables signal enhancement and in situ detection of cancer biomarkers. NANOSCALE 2018; 10:10884-10890. [PMID: 29565425 DOI: 10.1039/c7nr09496e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Interfacial biosensing performs the detection of biomolecules at the bare-metal interface for disease diagnosis by comparing how biological species derived from patients and healthy individuals interact with bare metal surfaces. This technique retrieves clinicopathological information without complex surface functionalisation which is a major limitation of conventional techniques. However, it is still challenging to detect subtle molecular changes by interfacial biosensing, and the detection often requires prolonged sensing times due to the slow diffusion process of the biomolecules towards the sensor surface. Herein, we report on a novel strategy for interfacial biosensing which involves in situ electrochemical detection under the action of an electric field-induced nanoscopic flow at nanometre distance to the sensing surface. This nanomixing significantly increases target adsorption, reduces sensing time, and enables the detection of small molecular changes with enhanced sensitivity. Using a multiplex electrochemical microdevice that enables nanomixing and in situ label-free electrochemical detection, we demonstrate the detection of multiple cancer biomarkers on the same device. We present data for the detection of aberrant phosphorylation in the EGFR protein and hypermethylation in the EN1 gene region. Our method significantly shortens the assay period (from 40 min and 20 min to 3 minutes for protein and DNA, respectively), increases the sensitivity by up to two orders of magnitude, and improves detection specificity.
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Affiliation(s)
- Alain Wuethrich
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), Corner College and Cooper Roads (Bldg 75), The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Abu Ali Ibn Sina
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), Corner College and Cooper Roads (Bldg 75), The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Mostak Ahmed
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), Corner College and Cooper Roads (Bldg 75), The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Ting-Yun Lin
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), Corner College and Cooper Roads (Bldg 75), The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Laura G Carrascosa
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), Corner College and Cooper Roads (Bldg 75), The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Matt Trau
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), Corner College and Cooper Roads (Bldg 75), The University of Queensland, Brisbane, QLD 4072, Australia. and School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia
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116
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Wang R, Chen Y, Fan K, Ji F, Wu J, Yu YH. Nominal effective immunoreaction volume of magnetic beads at single bead level. J Zhejiang Univ Sci B 2018; 18:845-853. [PMID: 28990375 DOI: 10.1631/jzus.b1600358] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Immunomagnetic bead (IMB)-based enzyme-linked immunosorbent assay (ELISA) has been the tool frequently used for protein detection in research and clinical laboratories. For most ELISA reactions the recommended dosage of IMBs is usually according to their weight (mg) or mass fraction (w/v) instead of the bead number. Consequently, the processes occurring in the immediate vicinity of the IMBs have always been ignored by researchers and they cannot be revealed in detail during the ELISA reaction. In this paper, we established the relationship between number of IMBs and colorimetric results, and further proposed a new concept of "nominal effective immunoreaction volume (NEIV)" to characterize a single IMB during ELISA reaction. Results showed that the NEIV of a single IMB has a constant value, which is unrelated to the amount of beads and the concentration of antigen. Optimal results of the colorimetric ELISA are achieved when the incubation volume meets each IMB's NEIV and is no longer enhanced by increasing the incubation volume. Thus, the reliable and relatively precise number of IMBs for ELISA detection during practical application could be determined. Most importantly, a study using IMB's NEIV would lay the foundation for a kinetics analysis of IMBs and antigens for future study.
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Affiliation(s)
- Rui Wang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Yuan Chen
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Kai Fan
- College of Life Information Science and Instrument Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Feng Ji
- The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jian Wu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Yong-Hua Yu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
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117
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Chang Y, Li M, Wu Z, Zhuo Y, Chai Y, Xiao Q, Yuan R. Homogeneous Entropy Catalytic-Driven DNA Hydrogel as Strong Signal Blocker for Highly Sensitive Electrochemical Detection of Platelet-Derived Growth Factor. Anal Chem 2018; 90:8241-8247. [DOI: 10.1021/acs.analchem.8b01766] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Yuanyuan Chang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Mengyao Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Zhongyu Wu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Ying Zhuo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Yaqin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Qi Xiao
- College of Chemistry and Materials Science, Guangxi Teachers Education University, Nanning 530001, P. R. China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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118
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Annio G, Jennings TL, Tagit O, Hildebrandt N. Sensitivity Enhancement of Förster Resonance Energy Transfer Immunoassays by Multiple Antibody Conjugation on Quantum Dots. Bioconjug Chem 2018; 29:2082-2089. [DOI: 10.1021/acs.bioconjchem.8b00296] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giacomo Annio
- NanoBioPhotonics, Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, CEA, 91400 Orsay, France
- Department of Medical Physics and Biomedical Engineering, University College London, WC1E 6BT London, United Kingdom
| | - Travis L. Jennings
- Thermo Fisher Scientific, 5781 Van Allen Way, Carlsbad, California 92008, United States
| | - Oya Tagit
- NanoBioPhotonics, Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, CEA, 91400 Orsay, France
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Niko Hildebrandt
- NanoBioPhotonics, Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, CEA, 91400 Orsay, France
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119
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Lou D, Fan L, Cui Y, Zhu Y, Gu N, Zhang Y. Fluorescent Nanoprobes with Oriented Modified Antibodies to Improve Lateral Flow Immunoassay of Cardiac Troponin I. Anal Chem 2018; 90:6502-6508. [PMID: 29697255 DOI: 10.1021/acs.analchem.7b05410] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Performance of nanoprobes can often determine the detection level of Lateral immunochromatography. Traditional probes were limited by the quantity and orientation of antibodies, immune activity of the Fab region or binding strength between protein and substrate. This study developed a new efficient and robust technology to construct fluorescent nanoprobes with oriented modified antibodies, based on specific binding of the Fc region of antibody with streptococcal protein G (SPG) on the surface of polystyrene microspheres (MS) and subsequent covalent cross-linking at binding sites to firm them. Lateral flow immunoassay using these probes was applied for the detection of cardiac troponin I (cTnI). The significantly improved detection sensitivity demonstrated that antibody orientation on MS surfaces effectively enhanced immunological activities of probes compared with random immobilizing methods. Furthermore, performance evaluation results of lateral flow test strips met clinical requirements perfectly, including limit of detection (0.032 ng/mL), linearity ( R > 0.99), repeatability (CV < 10%), correlation ( R > 0.99), and heat aging stability. This research also employed heterophilic blocking reagent (HBR) to actively block redundant binding sites of SPG for the first time in order to eliminate false positive interferences, improving the sensitivity and precision of test results further.
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Affiliation(s)
- Doudou Lou
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology , Southeast University , Nanjing , People's Republic of China
| | - Lin Fan
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology , Southeast University , Nanjing , People's Republic of China
| | - Yan Cui
- Nanjing Nanoeast Biotech Co., Ltd. , Nanjing , People's Republic of China
| | - Yefei Zhu
- Laboratory Medicine Center , The Second Affiliated Hospital of Nanjing Medical University , Nanjing , People's Republic of China
| | - Ning Gu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology , Southeast University , Nanjing , People's Republic of China
| | - Yu Zhang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology , Southeast University , Nanjing , People's Republic of China
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Honikel MM, Lin CE, Cardinell BA, LaBelle JT, Penman AD. Direct Measurement of a Biomarker's Native Optimal Frequency with Physical Adsorption Based Immobilization. ACS Sens 2018. [PMID: 29533605 DOI: 10.1021/acssensors.8b00064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The optimal frequency (OF) of a biomarker in electrochemical impedance spectroscopy (EIS) is the frequency at which the EIS response best reflects the binding of the biomarker to its molecular recognition element. Commonly, biosensors rely on complicated immobilization chemistry to attach biological molecules to the sensor surface, making the direct study of a biomarker's native OF a challenge. Physical adsorption presents a simple immobilization strategy to study the native biomarker's OF, but its utility is often discouraged due to a loss in biological activity. To directly study a biomarker's native OF and investigate the potential of OF to overcome the limitations of physical adsorption, a combination of EIS and glutaraldehyde-mediated physical adsorption was explored. The experimental sensing platform was prepared by immobilizing either anti-lactoferrin (Lfn) IgG or anti-immunoglobulin E (IgE) onto screen printed carbon electrodes. After characterizing the native OFs of both biomarkers, investigation of the platform's specificity, stability, and performance in complex medium was found to be sufficient. Finally, a paper-based tear sampling component was integrated to transform the testing platform into a prototypical point-of-care dry eye diagnostic. The investigation of native OFs revealed a correlation between the native OFs (57.44 and 371.1 Hz for Lfn and IgE, respectively) and the molecular weight of the antibody-antigen complex. Impedance responses at the native OFs have enabled detection limits of 0.05 mg/mL and 40 ng/mL for Lfn and IgE, respectively, covering the clinically relevant ranges. The native OFs were found to be robust across various testing mediums and conditions.
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Affiliation(s)
- Mackenzie M. Honikel
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona 85287, United States
| | - Chi-En Lin
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona 85287, United States
| | - Brittney A. Cardinell
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona 85287, United States
| | - Jeffrey T. LaBelle
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona 85287, United States
| | - Andrew D. Penman
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona 85287, United States
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121
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Li Z, Chen GY. Current Conjugation Methods for Immunosensors. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E278. [PMID: 29701654 PMCID: PMC5977292 DOI: 10.3390/nano8050278] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 04/20/2018] [Accepted: 04/23/2018] [Indexed: 12/18/2022]
Abstract
Recent advances in the development of immunosensors using polymeric nanomaterials and nanoparticles have enabled a wide range of new functions and applications in diagnostic and prognostic research. One fundamental challenge that all immunosensors must overcome is to provide the specificity of target molecular recognition by immobilizing antibodies, antibody fragments, and/or other peptides or oligonucleotide molecules that are capable of antigen recognition on a compact device surface. This review presents progress in the application of immobilization strategies including the classical adsorption process, affinity attachment, random cross-linking and specific covalent linking. The choice of immobilization methods and its impact on biosensor performance in terms of capture molecule loading, orientation, stability and capture efficiency are also discussed in this review.
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Affiliation(s)
- Zeyang Li
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Guan-Yu Chen
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan.
- Department of Biological Science and Technology, College of Biological Science and Technology, National Chiao Tung University, Hsinchu 30010, Taiwan.
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122
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Qin Z, Xu W, Chen S, Chen J, Qiu JF, Li CR. Electrochemical immunoassay for the carcinoembryonic antigen based on the use of a glassy carbon electrode modified with an octahedral Cu2O-gold nanocomposite and staphylococcal protein for signal amplification. Mikrochim Acta 2018; 185:266. [DOI: 10.1007/s00604-018-2747-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 02/22/2018] [Indexed: 12/14/2022]
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123
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Comparative study on antibody immobilization strategies for efficient circulating tumor cell capture. Biointerphases 2018; 13:021001. [PMID: 29571263 DOI: 10.1116/1.5023456] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Methods for isolation and quantification of circulating tumor cells (CTCs) are attracting more attention every day, as the data for their unprecedented clinical utility continue to grow. However, the challenge is that CTCs are extremely rare (as low as 1 in a billion of blood cells) and a highly sensitive and specific technology is required to isolate CTCs from blood cells. Methods utilizing microfluidic systems for immunoaffinity-based CTC capture are preferred, especially when purity is the prime requirement. However, antibody immobilization strategy significantly affects the efficiency of such systems. In this study, two covalent and two bioaffinity antibody immobilization methods were assessed with respect to their CTC capture efficiency and selectivity, using an anti-epithelial cell adhesion molecule (EpCAM) as the capture antibody. Surface functionalization was realized on plain SiO2 surfaces, as well as in microfluidic channels. Surfaces functionalized with different antibody immobilization methods are physically and chemically characterized at each step of functionalization. MCF-7 breast cancer and CCRF-CEM acute lymphoblastic leukemia cell lines were used as EpCAM positive and negative cell models, respectively, to assess CTC capture efficiency and selectivity. Comparisons reveal that bioaffinity based antibody immobilization involving streptavidin attachment with glutaraldehyde linker gave the highest cell capture efficiency. On the other hand, a covalent antibody immobilization method involving direct antibody binding by N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride (EDC)-N-hydroxysuccinimide (NHS) reaction was found to be more time and cost efficient with a similar cell capture efficiency. All methods provided very high selectivity for CTCs with EpCAM expression. It was also demonstrated that antibody immobilization via EDC-NHS reaction in a microfluidic channel leads to high capture efficiency and selectivity.
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124
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Säll A, Corbee D, Vikström S, Ottosson F, Persson H, Waldemarson S. Advancing the immunoaffinity platform AFFIRM to targeted measurements of proteins in serum in the pg/ml range. PLoS One 2018; 13:e0189116. [PMID: 29438379 PMCID: PMC5810979 DOI: 10.1371/journal.pone.0189116] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 11/20/2017] [Indexed: 02/02/2023] Open
Abstract
There is a great need for targeted protein assays with the capacity of sensitive measurements in complex samples such as plasma or serum, not the least for clinical purposes. Proteomics keeps generating hundreds of biomarker candidates that need to be transferred towards true clinical application through targeted verification studies and towards clinically applicable analysis formats. The immunoaffinity assay AFFIRM (AFFInity sRM) combines the sensitivity of recombinant single chain antibodies (scFv) for targeted protein enrichment with a specific mass spectrometry readout through selected reaction monitoring (SRM) in an automated workflow. Here we demonstrate a 100 times improved detection capacity of the assay down to pg/ml range through the use of oriented antibody immobilization to magnetic beads. This was achieved using biotin-tagged scFv coupled to streptavidin coated magnetic beads, or utilizing the FLAG tag for coupling to anti-FLAG antibody coated magnetic beads. An improved multiplexing capacity with an 11-plex setup was also demonstrated compared to a previous 3-plex setup, which is of great importance for the analysis of panels of biomarker targets.
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Affiliation(s)
- Anna Säll
- Department of Immunotechnology, Lund University, Lund, Sweden
| | - Daniel Corbee
- Department of Immunotechnology, Lund University, Lund, Sweden
| | - Sara Vikström
- Department of Immunotechnology, Lund University, Lund, Sweden
| | - Filip Ottosson
- Department of Immunotechnology, Lund University, Lund, Sweden
| | - Helena Persson
- Department of Immunotechnology, Lund University, Lund, Sweden
| | - Sofia Waldemarson
- Department of Immunotechnology, Lund University, Lund, Sweden
- * E-mail:
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125
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Icoz K, Soylu MC, Canikara Z, Unal E. Quartz-crystal Microbalance Measurements of CD19 Antibody Immobilization on Gold Surface and Capturing B Lymphoblast Cells: Effect of Surface Functionalization. ELECTROANAL 2018. [DOI: 10.1002/elan.201700789] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Kutay Icoz
- BioMINDS (Bio Micro/Nano Devices and Sensors) Lab, Department of Electrical and Electronics Engineering; Abdullah Gul University; 38080 Kayseri Turkey
| | - Mehmet Cagri Soylu
- Biomedical Engineering Department; Erciyes University; 38030 Kayseri Turkey
| | - Zeynep Canikara
- Biomedical Engineering Department; Erciyes University; 38030 Kayseri Turkey
| | - Ekrem Unal
- Division of Pediatric Hematology, Department of Pediatrics, Faculty of Medicine; Erciyes University; 38030 Kayseri Turkey
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126
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Svalova TS, Malysheva NN, Kozitsina AN. Structure of the receptor layer in electrochemical immunosensors. Modern trends and prospects of development. Russ Chem Bull 2018. [DOI: 10.1007/s11172-017-1951-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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127
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Centi S, Ratto F, Tatini F, Lai S, Pini R. Ready-to-use protein G-conjugated gold nanorods for biosensing and biomedical applications. J Nanobiotechnology 2018; 16:5. [PMID: 29351815 PMCID: PMC5775603 DOI: 10.1186/s12951-017-0329-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/16/2017] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Gold nanorods (GNRs) display unique capacity to absorb and scatter near infrared light, which arises from their peculiar composition of surface plasmon resonances. For this reason, GNRs have become an innovative material of great hope in nanomedicine, in particular for imaging and therapy of cancer, as well as in photonic sensing of biological agents and toxic compounds for e.g. biomedical diagnostics, forensic analysis and environmental monitoring. As the use of GNRs is becoming more and more popular, in all these contexts, there is emerging a latent need for simple and versatile protocols for their modification with targeting units that may convey high specificity for any analyte of interest of an end-user. RESULTS We introduce protein G-coated GNRs as a versatile solution for the oriented immobilization of antibodies in a single step of mixing. We assess this strategy against more standard covalent binding of antibodies, in terms of biocompatibility and efficiency of molecular recognition in buffer, serum and plasma, in the context of the development of a direct immunoenzymatic assay. In both cases, we estimate an average of around 30 events of molecular recognition per particle. In addition, we disclose a convenient protocol to store these particles for months in a freezer, without any detrimental effect. CONCLUSIONS The biocompatibility and efficiency of molecular recognition is similar in either case of GNRs that are modified with antibodies by covalent binding or oriented immobilization through protein G. However, protein G-coated GNRs are most attractive for an end-user, owing to their unique versatility and ease of bioconjugation with antibodies of her/his choice.
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Affiliation(s)
- S. Centi
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - F. Ratto
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - F. Tatini
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - S. Lai
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - R. Pini
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
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129
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Bakhmachuk A, Gorbatiuk O, Rachkov A, Dons'koi B, Khristosenko R, Ushenin I, Peshkova V, Soldatkin A. Surface Plasmon Resonance Investigations of Bioselective Element Based on the Recombinant Protein A for Immunoglobulin Detection. NANOSCALE RESEARCH LETTERS 2017; 12:112. [PMID: 28209032 PMCID: PMC5307396 DOI: 10.1186/s11671-017-1903-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 02/06/2017] [Indexed: 06/06/2023]
Abstract
The developed surface plasmon resonance (SPR) biosensor based on the recombinant Staphylococcal protein A with an additional cysteine residue (SPA-Cys) used as a biorecognition component showed a good selectivity and sensitivity for the immunoglobulin detection. The developed biosensor with SPA-Cys-based bioselective element can also be used as a first step of immunosensor creation. The successful immobilization of SPA-Cys on the nanolayer gold sensor surface of the SPR spectrometer was performed. The efficiency of blocking nonspecific sorption sites on the sensor surface with milk proteins, gelatin, BSA, and HSA was studied, and a rather high efficiency of using gelatin was confirmed. The SPR biosensor selectively interacted with IgG and did not interact with the control proteins. The linear dependence of the sensor response on the IgG concentration in the range from 2 to 10 μg/ml was shown. Using the calibration curve, the IgG concentration was measured in the model samples. The determined concentrations are in good agreement (r 2 = 0.97) with the given concentration of IgG.
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Affiliation(s)
- A Bakhmachuk
- Institute of Molecular Biology and Genetics of National Academy of Sciences of Ukraine, 150 Zabolotnogo Str., 03680, Kyiv, Ukraine.
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 2, korp.5, Pr. Akademika Hlushkova, Kyiv, 03022, Ukraine.
| | - O Gorbatiuk
- Institute of Molecular Biology and Genetics of National Academy of Sciences of Ukraine, 150 Zabolotnogo Str., 03680, Kyiv, Ukraine
- State Institute of Genetic and Regenerative Medicine, NAMS of Ukraine, 57/3, Velyka Vasyl'kivska Str., Kyiv, 03150, Ukraine
| | - A Rachkov
- Institute of Molecular Biology and Genetics of National Academy of Sciences of Ukraine, 150 Zabolotnogo Str., 03680, Kyiv, Ukraine
| | - B Dons'koi
- Institute of Pediatrics, Obstetrics and Gynecology, NAMS of Ukraine, 8, Maiborody Str., Kyiv, 04050, Ukraine
| | - R Khristosenko
- V.E. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 41, Prospect Nauki, Kyiv, 03028, Ukraine
| | - I Ushenin
- V.E. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 41, Prospect Nauki, Kyiv, 03028, Ukraine
| | - V Peshkova
- Institute of Molecular Biology and Genetics of National Academy of Sciences of Ukraine, 150 Zabolotnogo Str., 03680, Kyiv, Ukraine
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 2, korp.5, Pr. Akademika Hlushkova, Kyiv, 03022, Ukraine
| | - A Soldatkin
- Institute of Molecular Biology and Genetics of National Academy of Sciences of Ukraine, 150 Zabolotnogo Str., 03680, Kyiv, Ukraine
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 2, korp.5, Pr. Akademika Hlushkova, Kyiv, 03022, Ukraine
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130
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Huang Y, Xu J, Liu J, Wang X, Chen B. Disease-Related Detection with Electrochemical Biosensors: A Review. SENSORS (BASEL, SWITZERLAND) 2017; 17:E2375. [PMID: 29039742 PMCID: PMC5676665 DOI: 10.3390/s17102375] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 10/10/2017] [Accepted: 10/14/2017] [Indexed: 01/05/2023]
Abstract
Rapid diagnosis of diseases at their initial stage is critical for effective clinical outcomes and promotes general public health. Classical in vitro diagnostics require centralized laboratories, tedious work and large, expensive devices. In recent years, numerous electrochemical biosensors have been developed and proposed for detection of various diseases based on specific biomarkers taking advantage of their features, including sensitivity, selectivity, low cost and rapid response. This article reviews research trends in disease-related detection with electrochemical biosensors. Focus has been placed on the immobilization mechanism of electrochemical biosensors, and the techniques and materials used for the fabrication of biosensors are introduced in details. Various biomolecules used for different diseases have been listed. Besides, the advances and challenges of using electrochemical biosensors for disease-related applications are discussed.
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Affiliation(s)
- Ying Huang
- Chongqing Key Laboratory of Non-linear Circuit and Intelligent Information Processing, College of Electronic and Information Engineering, Southwest University, Chongqing 400715, China.
| | - Jin Xu
- Chongqing Key Laboratory of Non-linear Circuit and Intelligent Information Processing, College of Electronic and Information Engineering, Southwest University, Chongqing 400715, China.
| | - Junjie Liu
- Chongqing Key Laboratory of Non-linear Circuit and Intelligent Information Processing, College of Electronic and Information Engineering, Southwest University, Chongqing 400715, China.
| | - Xiangyang Wang
- CET-College of Engineering and Technology, Southwest University, Chongqing 400715, China.
| | - Bin Chen
- Chongqing Key Laboratory of Non-linear Circuit and Intelligent Information Processing, College of Electronic and Information Engineering, Southwest University, Chongqing 400715, China.
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University) Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China.
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131
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Pacelli S, Basu S, Whitlow J, Chakravarti A, Acosta F, Varshney A, Modaresi S, Berkland C, Paul A. Strategies to develop endogenous stem cell-recruiting bioactive materials for tissue repair and regeneration. Adv Drug Deliv Rev 2017; 120:50-70. [PMID: 28734899 PMCID: PMC5705585 DOI: 10.1016/j.addr.2017.07.011] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 07/05/2017] [Accepted: 07/16/2017] [Indexed: 02/07/2023]
Abstract
A leading strategy in tissue engineering is the design of biomimetic scaffolds that stimulate the body's repair mechanisms through the recruitment of endogenous stem cells to sites of injury. Approaches that employ the use of chemoattractant gradients to guide tissue regeneration without external cell sources are favored over traditional cell-based therapies that have limited potential for clinical translation. Following this concept, bioactive scaffolds can be engineered to provide a temporally and spatially controlled release of biological cues, with the possibility to mimic the complex signaling patterns of endogenous tissue regeneration. Another effective way to regulate stem cell activity is to leverage the inherent chemotactic properties of extracellular matrix (ECM)-based materials to build versatile cell-instructive platforms. This review introduces the concept of endogenous stem cell recruitment, and provides a comprehensive overview of the strategies available to achieve effective cardiovascular and bone tissue regeneration.
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Affiliation(s)
- Settimio Pacelli
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Sayantani Basu
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Jonathan Whitlow
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Aparna Chakravarti
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Francisca Acosta
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Arushi Varshney
- Department of Human Genetics, University of Michigan, Ann Arbor, MI, USA.
| | - Saman Modaresi
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Cory Berkland
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA; Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, USA.
| | - Arghya Paul
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
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132
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Zhang S, Geryak R, Geldmeier J, Kim S, Tsukruk VV. Synthesis, Assembly, and Applications of Hybrid Nanostructures for Biosensing. Chem Rev 2017; 117:12942-13038. [DOI: 10.1021/acs.chemrev.7b00088] [Citation(s) in RCA: 206] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shuaidi Zhang
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Ren Geryak
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Jeffrey Geldmeier
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Sunghan Kim
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Vladimir V. Tsukruk
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
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133
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Park M, Pyun JC, Jose J. Orientation and density control of proteins on solid matters by outer membrane coating: Analytical and diagnostic applications. J Pharm Biomed Anal 2017; 147:174-184. [PMID: 28797956 DOI: 10.1016/j.jpba.2017.07.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 07/28/2017] [Accepted: 07/29/2017] [Indexed: 12/11/2022]
Abstract
Autodisplay is an expression system for the display of recombinant proteins on the outer membrane (OM) of gram negative bacteria and has been developed for translocation studies, whole cell biocatalysis, bioremediation, inhibitor screening, and enzyme refolding. Recently, affinity proteins such as IgG-binding Z-domains and biotin-binding streptavidin have been autodisplayed on the OM of Escherichia coli for analytical and biomedical applications. The secretion mechanism of the autodisplay system was used and orientation and density control of these affinity proteins were determined. Affinity protein-autodisplaying E. coli cells have been used to coat solid supports in immunoassays. For this purpose, the OM of autodisplayed E. coli cells was separated and isolated by the aid of detergents. The structure of the resulting OM liposomes as well as their physico-chemical parameters, were analyzed. OM liposomes were used subsequently for coating various solid matters including microplates and biosensor transducer surfaces and the formation of OM layers were monitored. OM layer formation on solid matters was shown to increase the sensitivity of immunoassays and biosensors. In this review, analytical and diagnostic applications are described in particular concerning orientation and density control of autodisplayed affinity proteins.
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Affiliation(s)
- Min Park
- Integrative Materials Research Institute, Hallym University, Chuncheon-si, Republic of Korea; Department of Materials Science and Engineering, Hallym University, Chuncheon-si, Republic of Korea
| | - Jae-Chul Pyun
- Department of Materials Science and Engineering, Yonsei University, Seoul, Republic of Korea
| | - Joachim Jose
- Institute of Pharmaceutical and Medicinal Chemistry, PharmaCampus, Westfälische Wilhelms-Universität, Münster, Germany.
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134
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Influence of antibody immobilization strategies on the analytical performance of a magneto-elastic immunosensor for Staphylococcus aureus detection. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:1232-1239. [DOI: 10.1016/j.msec.2017.03.107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 03/12/2017] [Indexed: 12/12/2022]
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135
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Immunosensor assembled on polymeric nanostructures for clinical diagnosis of C-reactive protein. Microchem J 2017. [DOI: 10.1016/j.microc.2017.04.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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136
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Orientation and characterization of immobilized antibodies for improved immunoassays (Review). Biointerphases 2017; 12:02D301. [DOI: 10.1116/1.4978435] [Citation(s) in RCA: 202] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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137
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On/off-switchable LSPR nano-immunoassay for troponin-T. Sci Rep 2017; 7:44027. [PMID: 28382946 PMCID: PMC5382532 DOI: 10.1038/srep44027] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 01/31/2017] [Indexed: 12/25/2022] Open
Abstract
Regeneration of immunosensors is a longstanding challenge. We have developed a re-usable troponin-T (TnT) immunoassay based on localised surface plasmon resonance (LSPR) at gold nanorods (GNR). Thermosensitive poly(N-isopropylacrylamide) (PNIPAAM) was functionalised with anti-TnT to control the affinity interaction with TnT. The LSPR was extremely sensitive to the dielectric constant of the surrounding medium as modulated by antigen binding after 20 min incubation at 37 °C. Computational modelling incorporating molecular docking, molecular dynamics and free energy calculations was used to elucidate the interactions between the various subsystems namely, IgG-antibody (c.f., anti-TnT), PNIPAAM and/or TnT. This study demonstrates a remarkable temperature dependent immuno-interaction due to changes in the PNIPAAM secondary structures, i.e., globular and coil, at above or below the lower critical solution temperature (LCST). A series of concentrations of TnT were measured by correlating the λLSPR shift with relative changes in extinction intensity at the distinct plasmonic maximum (i.e., 832 nm). The magnitude of the red shift in λLSPR was nearly linear with increasing concentration of TnT, over the range 7.6 × 10−15 to 9.1 × 10−4 g/mL. The LSPR based nano-immunoassay could be simply regenerated by switching the polymer conformation and creating a gradient of microenvironments between the two states with a modest change in temperature.
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138
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Shen M, Rusling J, Dixit CK. Site-selective orientated immobilization of antibodies and conjugates for immunodiagnostics development. Methods 2017; 116:95-111. [PMID: 27876681 PMCID: PMC5374010 DOI: 10.1016/j.ymeth.2016.11.010] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/16/2016] [Accepted: 11/17/2016] [Indexed: 01/11/2023] Open
Abstract
Immobilized antibody systems are the key to develop efficient diagnostics and separations tools. In the last decade, developments in the field of biomolecular engineering and crosslinker chemistry have greatly influenced the development of this field. With all these new approaches at our disposal, several new immobilization methods have been created to address the main challenges associated with immobilized antibodies. Few of these challenges that we have discussed in this review are mainly associated to the site-specific immobilization, appropriate orientation, and activity retention. We have discussed the effect of antibody immobilization approaches on the parameters on the performance of an immunoassay.
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Affiliation(s)
- Min Shen
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060
| | - James Rusling
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060
- Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136
- Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut 060
- School of Chemistry, National University of Ireland at Galway, Galway, Ireland
| | - Chandra K Dixit
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060
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139
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Scaffolds for oriented and close-packed immobilization of immunoglobulins. Biosens Bioelectron 2017; 89:810-821. [DOI: 10.1016/j.bios.2016.10.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/27/2016] [Accepted: 10/03/2016] [Indexed: 02/07/2023]
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140
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Jeong S, Park JY, Cha MG, Chang H, Kim YI, Kim HM, Jun BH, Lee DS, Lee YS, Jeong JM, Lee YS, Jeong DH. Highly robust and optimized conjugation of antibodies to nanoparticles using quantitatively validated protocols. NANOSCALE 2017; 9:2548-2555. [PMID: 28150822 DOI: 10.1039/c6nr04683e] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Antibody-conjugated nanoparticles (NPs) have attracted great attention in diagnostic and therapeutic applications due to their high sensitivity and specificity for biotargets, as well as their wide applicability. Unfortunately, these features are significantly affected by antibody conjugation methods in terms of conjugation efficiency, orientation of the target binding site in the antibody, and denaturation during chemical conjugation reactions. Furthermore, the number of conjugated antibodies on each NP and the overall targeting efficacy are critical factors for a quantitative bioassay with antibody-conjugated NPs. Herein, we report a versatile and oriented antibody conjugation method using copper-free click chemistry. Moreover, the number of conjugated antibodies and their binding capacity were quantitatively and experimentally evaluated using fluorescently-labeled antibodies and antigens. The strong binding capability of antibody-conjugated NPs prepared using the copper-free click chemistry-based conjugation strategy was 8 times superior to the binding capability seen following the use of the EDC/NHS-coupling method. Additionally, the versatility of the developed antibody conjugation method was also demonstrated by conjugation of the antibody to three kinds of silica-encapsulated NPs.
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Affiliation(s)
- Sinyoung Jeong
- Department of Chemistry Education, Seoul National University, Seoul 08826, Korea.
| | - Ji Yong Park
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul 03080, Korea. and Major in Biomedical Sciences, Department of Biomedical Sciences, Seoul National University Graduate School, Seoul 08826, Korea
| | - Myeong Geun Cha
- Department of Chemistry Education, Seoul National University, Seoul 08826, Korea.
| | - Hyejin Chang
- Department of Chemistry Education, Seoul National University, Seoul 08826, Korea.
| | - Yong-Il Kim
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul 03080, Korea.
| | - Hyung-Mo Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea
| | - Dong Soo Lee
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul 03080, Korea. and Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine or College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Yoon-Sik Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea
| | - Jae Min Jeong
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul 03080, Korea.
| | - Yun-Sang Lee
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul 03080, Korea. and Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine or College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Dae Hong Jeong
- Department of Chemistry Education, Seoul National University, Seoul 08826, Korea.
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141
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Development of biohybrid immuno-selective membranes for target antigen recognition. Biosens Bioelectron 2017; 92:54-60. [PMID: 28187299 DOI: 10.1016/j.bios.2017.02.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/01/2017] [Accepted: 02/02/2017] [Indexed: 02/01/2023]
Abstract
Membranes are gaining increasing interest in solid-phase analytical assay and biosensors applications, in particular as functional surface for bioreceptors immobilization and stabilization as well as for the concentration of target molecules in microsystems. In this work, regenerated cellulose immuno-affinity membranes were developed and they were used for the selective capture of interleukin-6 (IL-6) as targeted antigen. Protein G was covalently linked on the membrane surface and it was successfully used for the oriented site-specific antibody immobilization. The antibody binding capacity of the protein G-coupled membrane was evaluated. The specific anti IL-6 antibody was immobilized and a quantitative analysis of the amount of IL-6 captured by the immuno-affinity membrane was performed. The immobilization procedure was optimized to eliminate the non-specific binding of antigen on the membrane surface. Additionally, the interaction between anti IL-6 antibody and protein G was stabilized by chemical cross-linking with glutaraldehyde and the capture ability of immuno-affinity membranes, with and without the cross-linker, was compared. The maximum binding capacity of the protein G-coupled membrane was 43.8µg/cm2 and the binding efficiency was 88%. The immuno-affinity membranes showed a high IL-6 capture efficiency at very low antigen concentration, up to a maximum of 91%, the amount of captured IL-6 increased linearly as increasing the initial concentration. The cross-linked surface retained the antigen binding capacity demonstrating its robustness in being reused, without antibody leakage or reduction in antibody binding capacity. The overall results demonstrated the possibility of a reliable application of the immuno-affinity membrane developed for biosensors and bioassays also in multiple use.
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142
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Kim EJ, Jeon CS, Hwang I, Chung TD. Translocation Pathway-Dependent Assembly of Streptavidin- and Antibody-Binding Filamentous Virus-Like Particles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1601693. [PMID: 27762503 DOI: 10.1002/smll.201601693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 09/13/2016] [Indexed: 06/06/2023]
Abstract
Compared to well-tolerated p3 fusion, the display of fast-folding proteins fused to the minor capsid p7 and the major capsid p8, as well as in vivo biotinylation of biotin acceptor peptide (AP) fused to p7, are found to be markedly inefficient using the filamentous phage. Here, to overcome such limitations, the effect of translocation pathways, amber mutation, and phage and phagemid display systems on p7 and p8 display of antibody-binding domains are examined, while comparing the level of in vivo biotinylation of AP fused to p7 or p3. Interestingly, the in vivo biotinylation of AP occurs only in p3 fusion and the fast-folding antibody-binding scaffolds fused to p7 and p8 are best displayed via a twin-arginine translocation pathway in TG1 cells. The lower the expression level of the wild-type p8 and the smaller the size of the guest protein, the better the display of Z-domain fused to the recombinant p8. The in vivo biotinylated multifunctional filamentous virus-like particles can be vertically immobilized on streptavidin (SAV)-coated microspheres to resemble cellular microvilli-like structures, which reportedly enhance protein-protein interactions due to dramatically expanded flexible surface area.
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Affiliation(s)
- Eun Joong Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea
| | - Chang Su Jeon
- Samsung Electronics Co., Ltd, Samsungjeonja-ro 1, Hwaseong-si, Gyeonggi-do, 18448, Korea
| | - Inseong Hwang
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea
| | - Taek Dong Chung
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea
- Advanced Institutes of Convergence Technology, Suwon-si, Gyeonggi-do, 16229, Korea
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143
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Lai CH, Choon Lim S, Wu LC, Wang CF, Tsai WS, Wu HC, Chang YC. Site-specific antibody modification and immobilization on a microfluidic chip to promote the capture of circulating tumor cells and microemboli. Chem Commun (Camb) 2017; 53:4152-4155. [DOI: 10.1039/c7cc00247e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Antibody coating via Fc-domain site-specific immobilization improves capture efficiency of circulating tumor cells and microemboli in microfluidics.
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Affiliation(s)
- Chian-Hui Lai
- Genomics Research Center
- Academia Sinica
- Taipei
- Taiwan
- Department of Medicinal and Applied Chemistry
| | | | | | | | - Wen-Sy Tsai
- Graduate Institute of Clinical Medical Science
- Chang-Gung University
- Taoyuan
- Taiwan
- Division of Colon and Rectal Surgery
| | - Han-Chung Wu
- Institute of Cellular and Organismic Biology
- Academia Sinica
- Taipei
- Taiwan
| | - Ying-Chih Chang
- Genomics Research Center
- Academia Sinica
- Taipei
- Taiwan
- Department of Chemical Engineering
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144
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Khaniabadi YO, Goudarzi G, Daryanoosh SM, Borgini A, Tittarelli A, De Marco A. Exposure to PM 10, NO 2, and O 3 and impacts on human health. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:1-3. [PMID: 27837472 DOI: 10.1007/s11356-015-5582-4] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 10/07/2015] [Indexed: 05/23/2023]
Abstract
Air pollution is emerging as a risk factor for human health like cancer and other health outcomes in developing countries, especially Iran where air pollutant concentrations are elevated. Additionally, some of the crucial environmental problems are caused by air pollution. Nevertheless, the data on health effects of air pollution are limited. The main objective of this study was to assess the health impacts attributed to particulate matter less than 10 μg/m3 (PM10), nitrogen dioxide (NO2), and ozone (O3) in Kermanshah City (Iran). The diurnal averages of PM10 and NO2 levels and 1-h averages of O3 concentrations were applied to assess the cardiovascular mortality due to exposure to these pollutants during the years 2014 and 2015. The excess number of cardiovascular mortality was estimated by relative risk (RR) and baseline incidence (BI) defined by the World Health Organization (WHO). The excess in mortality risk for cardiovascular diseases is of 188 premature deaths related to PM10, 33 related to NO2, and 83 related to O3, respectively. The results indicate that a 10-μg/m3 change in PM10, NO2, and O3 generates a relative risk of 1.066, 1.012, and 1.020, respectively. The excess of relative risk is of 6.6, 1.2, and 2.0%, respectively. Immediate policies and actions are needed to reduce the various sources of these pollutants from transport and energy manufacture facilities in Kermanshah.
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Affiliation(s)
- Yusef Omidi Khaniabadi
- Health Care System of Karoon, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Gholamreza Goudarzi
- Environmental Technologies Research Center (ETRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Alessandro Borgini
- Cancer Registry and Environmental Epidemiology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, Milan, Italy
| | - Andrea Tittarelli
- Cancer Registry and Environmental Epidemiology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, Milan, Italy
| | - Alessandra De Marco
- Department of Territorial and Production Systems Sustainability, SSPT-MET-INAT, ENEA, CR Casaccia, Via Anguillarese 301, 00123, Rome, Italy.
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145
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Demey H, Tria SA, Soleri R, Guiseppi-Elie A, Bazin I. Sorption of his-tagged Protein G and Protein G onto chitosan/divalent metal ion sorbent used for detection of microcystin-LR. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:15-24. [PMID: 26667644 DOI: 10.1007/s11356-015-5758-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 11/03/2015] [Indexed: 06/05/2023]
Abstract
A highly sensitive, specific, simple, and rapid chemiluminescence enzyme immunoassay (CLEIA) was developed for the determination of microcystin-LR (MC-LR) by using strategies for oriented immobilization of functionally intact polyclonal antibodies on chitosan surface. Several physicochemical parameters such as metal ion adsorption, hexahistidine-tagged Protein G sorption, the dilution ratio polyclonal antibody concentration, and peroxidase-labeled MC-LR concentration were studied and optimized. The sorption in batch system of G-histidine and G-proteins was studied on a novel sorbent consisting of chitosan/divalent metal ions. Transition metals as Ni++ and Zn++ were immobilized through interaction with -NH2 groups of chitosan in order to supply a material capable to efficiently remove the proteins from aqueous solutions. The maximum uptake of divalent metals onto the chitosan material was found to be 230 mg g-1 for Zn++ and 62 mg g-1 for Ni++. Experimental data were evaluated using the Langmuir and Freundlich models; the results were well fitted with the Langmuir model; chitosan/Ni++ foam was found to be the best sorbent for G-protein, maximum sorption capacity obtained was 17 mg g-1, and chitosan/Zn++ was found to be the best for G-histidine with a maximum sorption capacity of 44 mg g-1. Kinetic data was evaluated with pseudo-first- and pseudo-second-order models; the sorption kinetics were in all cases better represented by a pseudo-second-order model. Under optimum conditions, the calibration curve obtained for MC-LR gave detection limits of 0.5 ± 0.06 μg L-1, the 50 % inhibition concentration (IC50) was 2.75 ± 0.03 μg L-1, and the quantitative detection range was 0.5-25 μg L-1. The limit of detection (LOD) attained from the calibration curves and the results obtained demonstrate the potential use of CLEIA with chitosan support as a screening tool for the analysis of pollutants in environmental samples.
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Affiliation(s)
- Hary Demey
- École des Mines d'Alès, Centre des Matériaux des Mines d'Alès, 6 Avenue de Clavières, 30319, Alès CEDEX, France
| | - Scherrine A Tria
- École des Mines d'Alès, Laboratoire de Génie de L'Environnement Industriel, 6 Avenue de Clavières, 30319, Alès CEDEX, France
| | - Romain Soleri
- École des Mines d'Alès, Laboratoire de Génie de L'Environnement Industriel, 6 Avenue de Clavières, 30319, Alès CEDEX, France
| | - Anthony Guiseppi-Elie
- Department of Biomedical Engineering, The Dwight Look College of Engineering, Texas A&M University, 5045 ETB, College Station, TX, 77843, USA
| | - Ingrid Bazin
- École des Mines d'Alès, Laboratoire de Génie de L'Environnement Industriel, 6 Avenue de Clavières, 30319, Alès CEDEX, France.
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146
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Filbrun SL, Filbrun AB, Lovato FL, Oh SH, Driskell EA, Driskell JD. Chemical modification of antibodies enables the formation of stable antibody–gold nanoparticle conjugates for biosensing. Analyst 2017; 142:4456-4467. [DOI: 10.1039/c7an01496a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Antibody-modified gold nanoparticles (AuNPs) are central to many novel and emerging biosensing technologies due to the specificity provided by antibody–antigen interactions and the unique properties of nanoparticles.
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Affiliation(s)
| | | | | | - Soon H. Oh
- Department of Pathobiology
- University of Illinois at Urbana-Champaign
- Urbana
- USA
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147
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Dong X, Obermeyer AC, Olsen BD. Three‐Dimensional Ordered Antibody Arrays Through Self‐Assembly of Antibody–Polymer Conjugates. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xue‐Hui Dong
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Allie C. Obermeyer
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Bradley D. Olsen
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
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148
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Dong X, Obermeyer AC, Olsen BD. Three‐Dimensional Ordered Antibody Arrays Through Self‐Assembly of Antibody–Polymer Conjugates. Angew Chem Int Ed Engl 2016; 56:1273-1277. [DOI: 10.1002/anie.201607085] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 11/02/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Xue‐Hui Dong
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Allie C. Obermeyer
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Bradley D. Olsen
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
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149
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Fc-Binding Ligands of Immunoglobulin G: An Overview of High Affinity Proteins and Peptides. MATERIALS 2016; 9:ma9120994. [PMID: 28774114 PMCID: PMC5456964 DOI: 10.3390/ma9120994] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 11/26/2016] [Accepted: 11/29/2016] [Indexed: 01/20/2023]
Abstract
The rapidly increasing application of antibodies has inspired the development of several novel methods to isolate and target antibodies using smart biomaterials that mimic the binding of Fc-receptors to antibodies. The Fc-binding domain of antibodies is the primary binding site for e.g., effector proteins and secondary antibodies, whereas antigens bind to the Fab region. Protein A, G, and L, surface proteins expressed by pathogenic bacteria, are well known to bind immunoglobulin and have been widely exploited in antibody purification strategies. Several difficulties are encountered when bacterial proteins are used in antibody research and application. One of the major obstacles hampering the use of bacterial proteins is sample contamination with trace amounts of these proteins, which can invoke an immune response in the host. Many research groups actively develop synthetic ligands that are able to selectively and strongly bind to antibodies. Among the reported ligands, peptides that bind to the Fc-domain of antibodies are attractive tools in antibody research. Besides their use as high affinity ligands in antibody purification chromatography, Fc-binding peptides are applied e.g., to localize antibodies on nanomaterials and to increase the half-life of proteins in serum. In this review, recent developments of Fc-binding peptides are presented and their binding characteristics and diverse applications are discussed.
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150
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Taheri RA, Rezayan AH, Rahimi F, Mohammadnejad J, Kamali M. Development of an immunosensor using oriented immobilized anti-OmpW for sensitive detection of Vibrio cholerae by surface plasmon resonance. Biosens Bioelectron 2016; 86:484-488. [DOI: 10.1016/j.bios.2016.07.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 07/03/2016] [Accepted: 07/04/2016] [Indexed: 10/21/2022]
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