1
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Terraschke H, Franzreb M, Wickleder C. Magnetism and Afterglow United: Synthesis of Novel Double Core-Shell Eu 2+ -Doped Bifunctional Nanoparticles. Chemistry 2020; 26:6833-6838. [PMID: 31922631 PMCID: PMC7318628 DOI: 10.1002/chem.201904551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/14/2019] [Indexed: 01/16/2023]
Abstract
Afterglow-magnetic nanoparticles (NPs) offer enormous potential for bioimaging applications, as they can be manipulated by a magnetic field, as well as emitting light after irradiation with an excitation source, thus distinguishing themselves from fluorescent living cells. In this work, a novel double core-shell strategy is presented, uniting co-precipitation with combustion synthesis routes to combine an Fe3 O4 magnetic core (≈15 nm) with an afterglow SrAl2 O4 :Eu2+ ,Dy3+ outer coat (≈10 nm), and applying a SiO2 protective middle layer (≈16 nm) to reduce the luminescence quenching caused by the Fe core ions. The resulting Fe3 O4 @SiO2 @SrAl2 O4 :Eu2+ ,Dy3+ NPs emit green light attributed to the 4f6 5d1 →4f7 (8 S7/2 ) transition of Eu2+ under UV radiation and for a few seconds afterwards. This bifunctional nanocomposite can potentially be applied for the detection and separation of cells or diagnostically relevant molecules.
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Affiliation(s)
- Huayna Terraschke
- Inorganic ChemistryCμ—Center for Micro- and NanochemistryEngineering, Science and Technology FacultyUniversity of SiegenAdolf-Reichwein-Str. 257068SiegenGermany
- Current affiliation: Institut für Anorganische ChemieChristian-Albrechts-Universität zu KielMax-Eyth-Str. 224118KielGermany
| | - Matthias Franzreb
- Institute of Functional InterfacesKarlsruhe Institute of TechnologyHermann-von Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Claudia Wickleder
- Inorganic ChemistryCμ—Center for Micro- and NanochemistryEngineering, Science and Technology FacultyUniversity of SiegenAdolf-Reichwein-Str. 257068SiegenGermany
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2
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He Q, Li D, He Y, Guan T, Zhang Y, Shen Z, Chen X, Liu S, Lu B, Ji Y. Optical demodulation system for digitally encoded suspension array in fluoroimmunoassay. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:1-7. [PMID: 28936825 DOI: 10.1117/1.jbo.22.9.097003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 09/05/2017] [Indexed: 06/07/2023]
Abstract
A laser-induced breakdown spectroscopy and fluorescence spectroscopy-coupled optical system is reported to demodulate digitally encoded suspension array in fluoroimmunoassay. It takes advantage of the plasma emissions of assembled elemental materials to digitally decode the suspension array, providing a more stable and accurate recognition to target biomolecules. By separating the decoding procedure of suspension array and adsorption quantity calculation of biomolecules into two independent channels, the cross talk between decoding and label signals in traditional methods had been successfully avoided, which promoted the accuracy of both processes and realized more sensitive quantitative detection of target biomolecules. We carried a multiplexed detection of several types of anti-IgG to verify the quantitative analysis performance of the system. A limit of detection of 1.48×10-10 M was achieved, demonstrating the detection sensitivity of the optical demodulation system.
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Affiliation(s)
- Qinghua He
- Tsinghua University, Department of Physics, Beijing, China
- Tsinghua University, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of, China
| | - Dongmei Li
- Tsinghua University, Department of Physics, Beijing, China
- Tsinghua University, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of, China
| | - Yonghong He
- Tsinghua University, Department of Physics, Beijing, China
- Tsinghua University, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of, China
| | - Tian Guan
- Tsinghua University, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of, China
| | - Yilong Zhang
- Tsinghua University, Department of Physics, Beijing, China
- Tsinghua University, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of, China
| | - Zhiyuan Shen
- Tsinghua University, Department of Physics, Beijing, China
- Tsinghua University, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of, China
| | - Xuejing Chen
- Tsinghua University, Department of Physics, Beijing, China
- Tsinghua University, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of, China
| | - Siyu Liu
- Tsinghua University, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of, China
| | - Bangrong Lu
- South China Normal University, School of Physics and Telecommunication Engineering, Guangzhou, China
| | - Yanhong Ji
- South China Normal University, School of Physics and Telecommunication Engineering, Guangzhou, China
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Kozitsina A, Svalova T, Malysheva N, Glazyrina Y, Matern A. A New Enzyme-Free Electrochemical Immunoassay forEscherichia coliDetection using Magnetic Nanoparticles. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1072824] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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4
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Buchegger P, Preininger C. Four assay designs and on-chip calibration: gadgets for a sepsis protein array. Anal Chem 2014; 86:3174-80. [PMID: 24552299 DOI: 10.1021/ac5000784] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A protein microarray for the early stage diagnosis of sepsis that allows the simultaneous detection of C-reactive protein (CRP) (2-200 μg/mL), procalcitonin (PCT) (0.2-50 ng/mL), and interleukin 6 (IL-6) (2-2000 pg/mL) has been developed. To enable the parallel detection of the differently abundant analytes, the low binding affinity between CRP and phosphocholine is exploited in a "low-sensitive" sandwich assay for CRP. The calibration is integrated directly on the chip resulting in a "one patient-one array" format, to provide a user-friendly and rapid diagnostic tool. Four different assay designs are introduced: (I) the classical assay that works with biotin-streptavidin chemistry, (II) the rapid assay that is performed in a single detection step, and two ultrasensitive assay designs accomplished either by (III) an enzymatic or (IV) an antibody mediated amplification resulting in high density labeling. The assay designs were evaluated by the repetitive measurement of low, medium, and high concentration levels of commercially available certified control sera. The precision was similar across all assay designs (coefficient of variation (CV), CVintra: 8-14%; CVinter: 18-34%), while the sensitivity (limits of detection (LODs)) increased by 1 order of magnitude for the ultrasensitive assays (III, IV) and the accuracy was analyte dependent but best for the classical (I) and the antibody amplified (IV) assays.
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Affiliation(s)
- Patricia Buchegger
- Austrian Institute of Technology , Department of Health & Environment, Bioresources, Konrad Lorenz Straße 24, 3430 Tulln, Austria
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5
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Sun HL, Xu MM, Guo QH, Yuan YX, Shen LM, Gu RA, Yao JL. Surface enhanced Raman spectroscopic studies on magnetic Fe3O4@AuAg alloy core-shell nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 114:579-585. [PMID: 23800776 DOI: 10.1016/j.saa.2013.05.098] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 05/23/2013] [Accepted: 05/24/2013] [Indexed: 06/02/2023]
Abstract
A facile approach has been developed to fabricate multifunctional Fe3O4@AuAg alloy core-shell nanoparticles, owning the magnetism of the core and the surface enhanced Raman spectroscopy (SERS) activities of the alloy shell. By changing the amount of HAuCl4 and AgNO3, Fe3O4@AuAg alloy nanoparticles with different component ratios of Au and Ag were successfully prepared. The surface plasmon resonance of the composition was linearly tuned in a wide range by varying the molar fraction of Ag and Au, suggesting the formation of AuAg alloy shell. SERS and magnetic enrichment effects were investigated by using thiophenol (TP) as the probe molecule. The SERS intensity was strongly dependent on the molar ratios of Au and Ag and the excitation line. Enrichment for the molecules with low concentration and on line SERS monitoring experiments were performed through combining the magnetism of the core and the SERS effect of the alloy shell. The results revealed that the magnetic enrichment efficiency was dramatically increased due to the strong magnetism of Fe3O4 core. In addition, the Fe3O4@AuAg nanoparticles were also used in the microfluidic chip to continuously detect different flowing solution in the channel. The detection time and amount of analyte were successfully decreased.
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Affiliation(s)
- Hai-Long Sun
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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Charlermroj R, Himananto O, Seepiban C, Kumpoosiri M, Warin N, Oplatowska M, Gajanandana O, Grant IR, Karoonuthaisiri N, Elliott CT. Multiplex detection of plant pathogens using a microsphere immunoassay technology. PLoS One 2013; 8:e62344. [PMID: 23638044 PMCID: PMC3637204 DOI: 10.1371/journal.pone.0062344] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 03/20/2013] [Indexed: 11/19/2022] Open
Abstract
Plant pathogens are a serious problem for seed export, plant disease control and plant quarantine. Rapid and accurate screening tests are urgently required to protect and prevent plant diseases spreading worldwide. A novel multiplex detection method was developed based on microsphere immunoassays to simultaneously detect four important plant pathogens: a fruit blotch bacterium Acidovorax avenae subsp. citrulli (Aac), chilli vein-banding mottle virus (CVbMV, potyvirus), watermelon silver mottle virus (WSMoV, tospovirus serogroup IV) and melon yellow spot virus (MYSV, tospovirus). An antibody for each plant pathogen was linked on a fluorescence-coded magnetic microsphere set which was used to capture corresponding pathogen. The presence of pathogens was detected by R-phycoerythrin (RPE)-labeled antibodies specific to the pathogens. The assay conditions were optimized by identifying appropriate antibody pairs, blocking buffer, concentration of RPE-labeled antibodies and assay time. Once conditions were optimized, the assay was able to detect all four plant pathogens precisely and accurately with substantially higher sensitivity than enzyme-linked immunosorbent assay (ELISA) when spiked in buffer and in healthy watermelon leaf extract. The assay time of the microsphere immunoassay (1 hour) was much shorter than that of ELISA (4 hours). This system was also shown to be capable of detecting the pathogens in naturally infected plant samples and is a major advancement in plant pathogen detection.
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Affiliation(s)
- Ratthaphol Charlermroj
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom.
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7
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Cháfer-Pericás C, Balaguer Á, Maquieira Á, Puchades R. Dispersive solid-phase extraction and immunoassay with internal reference calibration using fatty acid-coated inorganic fluorescent nanoparticles. Anal Biochem 2013; 432:31-7. [DOI: 10.1016/j.ab.2012.09.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 09/12/2012] [Accepted: 09/16/2012] [Indexed: 11/24/2022]
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8
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Reddy LH, Arias JL, Nicolas J, Couvreur P. Magnetic nanoparticles: design and characterization, toxicity and biocompatibility, pharmaceutical and biomedical applications. Chem Rev 2012; 112:5818-78. [PMID: 23043508 DOI: 10.1021/cr300068p] [Citation(s) in RCA: 1121] [Impact Index Per Article: 93.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- L Harivardhan Reddy
- Laboratoire de Physico-Chimie, Pharmacotechnie et Biopharmacie, Université Paris-Sud XI, UMR CNRS, Faculté de Pharmacie, IFR, Châtenay-Malabry, France
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9
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Nge PN, Pagaduan JV, Yu M, Woolley AT. Microfluidic chips with reversed-phase monoliths for solid phase extraction and on-chip labeling. J Chromatogr A 2012; 1261:129-35. [PMID: 22995197 PMCID: PMC3463737 DOI: 10.1016/j.chroma.2012.08.095] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 08/28/2012] [Accepted: 08/29/2012] [Indexed: 01/13/2023]
Abstract
The integration of sample preparation methods into microfluidic devices provides automation necessary for achieving complete micro total analysis systems. We have developed a technique that combines on-chip sample enrichment with fluorescence labeling and purification. Polymer monoliths made from butyl methacrylate were fabricated in cyclic olefin copolymer microdevices and used for solid phase extraction. We studied the retention of fluorophores, amino acids and proteins on these columns. The retained samples were subsequently labeled with both Alexa Fluor 488 and Chromeo P503, and unreacted dye was rinsed off the column before sample elution. Additional purification was obtained from the differential retention of proteins and fluorescent labels. A linear relation between the eluted peak areas and concentrations of on-chip labeled heat shock protein 90 samples demonstrated the utility of this method for on-chip quantitation. Our fast and simple method of simultaneously concentrating and labeling samples on-chip is compatible with miniaturization and desirable for automated analysis.
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Affiliation(s)
- Pamela N. Nge
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602
| | - Jayson V. Pagaduan
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602
| | - Ming Yu
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602
| | - Adam T. Woolley
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602
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Abstract
Nanomaterials have been widely developed for their use in nanomedicine, especially for immunoassay-based diagnosis. In this review we focus on the use of nanomaterials as a nanoplatform for colloidal immunoassays. While conventional heterogeneous immunoassays suffer from mass transfer limitations and consequently long assay time, colloidal immunosupports allow target capture in the entire volume, thus speeding up reaction kinetics and shortening assay time. Owing to their wide range of chemical and physical properties, nanomaterials are an interesting candidate for immunoassay development. The most popular colloidal nanomaterials for colloidal immunoassays will be discussed, as well as their influence on immune reactions. Recent advances in nanomaterial applications for different formats of immunoassays will be reported, such as nanomaterial-based indirect immunoassays, optical-based agglutination immunoassays, resonance energy transfer-based immunoassays and magnetic relaxation-based immunoassays. Finally, the future of using nanomaterials for homogeneous immunoassays dedicated to clinical diagnosis will be discussed.
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Affiliation(s)
- Bruno Teste
- Institut Curie/CNRS/UPMC UMR168, 26 Rue d’Ulm, 75005 Paris, France
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11
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Pan Y, Du X, Zhao F, Xu B. Magnetic nanoparticles for the manipulation of proteins and cells. Chem Soc Rev 2012; 41:2912-42. [PMID: 22318454 DOI: 10.1039/c2cs15315g] [Citation(s) in RCA: 252] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In the rapidly developing areas of nanobiotechnology, magnetic nanoparticles (MNPs) are one type of the most well-established nanomaterials because of their biocompatibility and the potential applications as alternative contrast enhancing agents for magnetic resonance imaging (MRI). While the development of MNPs as alternative contrast agents for MRI application has moved quickly to testing in animal models and clinical trials, other applications of biofunctional MNPs have been explored extensively at the stage of qualitative or conceptual demonstration. In this critical review, we summarize the development of two straightforward applications of biofunctional MNPs--manipulating proteins and manipulating cells--in the last five years or so and hope to provide a relatively comprehensive assessment that may help the future developments. Specifically, we start with the examination of the strategy for the surface functionalization of MNPs because the applications of MNPs essentially depend on the molecular interactions between the functional molecules on the MNPs and the intended biological targets. Then, we discuss the use of MNPs for manipulating proteins since protein interactions are critical for biological functions. Afterwards, we evaluate the development of the use of MNPs to manipulate cells because the response of MNPs to a magnetic field offers a unique way to modulate cellular behavior in a non-contact or "remote" mode (i.e. the magnet exerts force on the cells without direct contact). Finally, we provide a perspective on the future directions and challenges in the development of MNPs for these two applications. By reviewing the examples of the design and applications of biofunctional MNPs, we hope that this article will provide a reference point for the future development of MNPs that address the present challenges and lead to new opportunities in nanomedicine and nanobiotechnology (137 references).
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Affiliation(s)
- Yue Pan
- Department of Chemistry, Brandeis University, 415 South St, Waltham, MA 02454, USA
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12
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Buchegger P, Sauer U, Toth-Székély H, Preininger C. Miniaturized protein microarray with internal calibration as point-of-care device for diagnosis of neonatal sepsis. SENSORS 2012; 12:1494-508. [PMID: 22438722 PMCID: PMC3304124 DOI: 10.3390/s120201494] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 01/13/2012] [Accepted: 01/29/2012] [Indexed: 12/16/2022]
Abstract
Neonatal sepsis is still a leading cause of death among newborns. Therefore a protein-microarray for point-of-care testing that simultaneously quantifies the sepsis associated serum proteins IL-6, IL-8, IL-10, TNF alpha, S-100, PCT, E-Selectin, CRP and Neopterin has been developed. The chip works with only a 4 μL patient serum sample and hence minimizes excessive blood withdrawal from newborns. The 4 μL patient samples are diluted with 36 μL assay buffer and distributed to four slides for repetitive measurements. Streptavidin coated magnetic particles that act as distinct stirring detection components are added, not only to stir the sample, but also to detect antibody antigen binding events. We demonstrate that the test is complete within 2.5 h using a single step assay. S-100 conjugated to BSA is spotted in increasing concentrations to create an internal calibration. The presented low volume protein-chip fulfills the requirements of point-of-care testing for accurate and repeatable (CV < 14%) quantification of serum proteins for the diagnosis of neonatal sepsis.
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Affiliation(s)
- Patricia Buchegger
- Health & Environment Department, AIT Austrian Institute of Technology, Bioresources, Konrad Lorenz Strasse 24, 3430 Tulln, Austria.
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13
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Xie M, Hu J, Wen CY, Zhang ZL, Xie HY, Pang DW. Fluorescent-magnetic dual-encoded nanospheres: a promising tool for fast-simultaneous-addressable high-throughput analysis. NANOTECHNOLOGY 2012; 23:035602. [PMID: 22173487 DOI: 10.1088/0957-4484/23/3/035602] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Bead-based optical encoding or magnetic encoding techniques are promising in high-throughput multiplexed detection and separation of numerous species under complicated conditions. Therefore, a self-assembly strategy implemented in an organic solvent is put forward to fabricate fluorescent-magnetic dual-encoded nanospheres. Briefly, hydrophobic trioctylphosphine oxide-capped CdSe/ZnS quantum dots (QDs) and oleic acid-capped nano-γ-Fe2O3 magnetic particles are directly, selectively and controllably assembled on branched poly(ethylene imine)-coated nanospheres without any pretreatment, which is crucial to keep the high quantum yield of QDs and good dispersibility of γ-Fe2O3. Owing to the tunability of coating amounts of QDs and γ-Fe2O3 as well as controllable fluorescent emissions of deposited-QDs, dual-encoded nanospheres with different photoluminescent emissions and gradient magnetic susceptibility are constructed. Using this improved layer-by-layer self-assembly approach, deposition of hydrophobic nanoparticles onto hydrophilic carriers in organic media can be easily realized; meanwhile, fluorescent-magnetic dual-functional nanospheres can be further equipped with readable optical and magnetic addresses. The resultant fluorescent-magnetic dual-encoded nanospheres possess both the unique optical properties of QDs and the superparamagnetic properties of γ-Fe2O3, exhibiting good monodispersibility, huge encoding capacity and nanoscale particle size. Compared with the encoded microbeads reported by others, the nanometre scale of the dual-encoded nanospheres gives them minimum steric hindrance and higher flexibility.
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Affiliation(s)
- Min Xie
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform), State Key Laboratory of Virology, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, People's Republic of China
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Cháfer-Pericás C, Maquieira A, Puchades R. Functionalized inorganic nanoparticles used as labels in solid-phase immunoassays. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2011.07.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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15
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Peng H, Liu G, Dong X, Wang J, Yu W, Xu J. Magnetic, luminescent and core–shell structured Fe3O4@YF3:Ce3+,Tb3+ bifunctional nanocomposites. POWDER TECHNOL 2012. [DOI: 10.1016/j.powtec.2011.10.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Cao Z, Li H, Lau C, Zhang Y. Cross-talk-free simultaneous fluoroimmunoassay of two biomarkers based on dual-color quantum dots. Anal Chim Acta 2011; 698:44-50. [DOI: 10.1016/j.aca.2011.04.045] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2010] [Revised: 04/22/2011] [Accepted: 04/25/2011] [Indexed: 11/15/2022]
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17
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Xiang DS, Zeng GP, He ZK. Magnetic microparticle-based multiplexed DNA detection with biobarcoded quantum dot probes. Biosens Bioelectron 2011; 26:4405-10. [DOI: 10.1016/j.bios.2011.04.051] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 04/26/2011] [Accepted: 04/27/2011] [Indexed: 10/18/2022]
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18
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Lee J, Jung J, Park S, Chen J, Choi J, Hyun J. Microarray of stimuli-responsive microbeads for duplexed immunoassay. BIOCHIP JOURNAL 2011. [DOI: 10.1007/s13206-011-5209-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Ahn KC, Kim HJ, Mccoy MR, Gee SJ, Hammock BD. Immunoassays and biosensors for monitoring environmental and human exposure to pyrethroid insecticides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:2792-802. [PMID: 21105656 PMCID: PMC3070843 DOI: 10.1021/jf1033569] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
This paper describes some of the early work on pyrethroid insecticides in the Casida laboratory and briefly reviews the development and application of immunochemical approaches for the detection of pyrethroid insecticides and their metabolites for monitoring environmental and human exposure. Multiple technologies can be combined to enhance the sensitivity and speed of immunochemical analysis. The pyrethroid assays are used to illustrate the use of some of these immunoreagents such as antibodies, competitive mimics, and novel binding agents such as phage-displayed peptides. The paper also illustrates reporters such as fluorescent dyes, chemiluminescent compounds, and luminescent lanthanide nanoparticles, as well as the application of magnetic separation, and automatic instrumental systems, biosensors, and novel immunological technologies. These new technologies alone and in combination result in an improved ability to both determine if effective levels of pyrethroids are being used in the field and evaluate possible contamination.
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Affiliation(s)
- Ki Chang Ahn
- Department of Entomology, University of California, Davis, Davis, CA 95616
| | - Hee-Joo Kim
- Department of Entomology, University of California, Davis, Davis, CA 95616
| | - Mark R. Mccoy
- Department of Entomology, University of California, Davis, Davis, CA 95616
| | - Shirley J. Gee
- Department of Entomology, University of California, Davis, Davis, CA 95616
| | - Bruce D. Hammock
- Department of Entomology, University of California, Davis, Davis, CA 95616
- Corresponding author [telephone (530) 752–7519; fax (530) 752–1537; ]
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Motte L, Benyettou F, de Beaucorps C, Lecouvey M, Milesovic I, Lalatonne Y. Multimodal superparamagnetic nanoplatform for clinical applications: immunoassays, imaging & therapy. Faraday Discuss 2011; 149:211-25; discussion 227-45. [DOI: 10.1039/c005286h] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Mistlberger G, Klimant I. Luminescent magnetic particles: structures, syntheses, multimodal imaging, and analytical applications. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/s12566-010-0017-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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22
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Soukka T, Härmä H. Lanthanide Nanoparticules as Photoluminescent Reporters. LANTHANIDE LUMINESCENCE 2010. [DOI: 10.1007/4243_2010_11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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23
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Prina-Mello A, Whelan AM, Atzberger A, McCarthy JE, Byrne F, Davies GL, Coey JMD, Volkov Y, Gun'ko YK. Comparative flow cytometric analysis of immunofunctionalized nanowire and nanoparticle signatures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2010; 6:247-255. [PMID: 19941303 DOI: 10.1002/smll.200901014] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Flow cytometry is one of the gold-standard techniques used in clinical medicine for quantitative immunoassaying. The continuous development of its probes, commonly fluorescent nanoparticles, is important. Lately, the introduction of quantitative multiplexed immunoassay has challenged the use of nanoparticles as probes. Functionalized fluorescent silica-based magnetic nanowires are investigated under flow cytometry as a novel probe category. The preparation and full characterization of these multimodal nanowires is reported and compared to those of silica-based magnetic nanoparticles by flow cytometry. Full characterization includes transmission electron microscopy and fluorescence microscopy imaging, flow cytometric assaying, superconducting quantum interference device (SQUID) magnetization, and Mössbauer spectroscopy measurements. This work shows that loaded silica nanowires have intrinsic geometrical advantages when compared to similar spherical particles due to their unique "flow cytometry fingerprint" when utilized as magnetic carriers for immunodetection applications. These advantages account for a 17% yield in detecting the functional binding between THP-1 and ICAM-1, by utilizing a much lower concentration than that required for the nanoparticles.
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Affiliation(s)
- Adriele Prina-Mello
- Centre for Research on Adaptive Nanostructures and Nanodevices, School of Physics, Trinity College Dublin, Dublin 2, Ireland.
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Ellington AA, Kullo IJ, Bailey KR, Klee GG. Antibody-based protein multiplex platforms: technical and operational challenges. Clin Chem 2009; 56:186-93. [PMID: 19959625 DOI: 10.1373/clinchem.2009.127514] [Citation(s) in RCA: 211] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND The measurement of multiple protein biomarkers may refine risk stratification in clinical settings. This concept has stimulated development of multiplexed immunoassay platforms that provide multiple, parallel protein measurements on the same specimen. CONTENT We provide an overview of antibody-based multiplexed immunoassay platforms and discuss technical and operational challenges. Multiplexed immunoassays use traditional immunoassay principles in which high-affinity capture ligands are immobilized in parallel arrays in either planar format or on microspheres in suspension. Development of multiplexed immunoassays requires rigorous validation of assay configuration and analytical performance to minimize assay imprecision and inaccuracy. Challenges associated with multiplex configuration include selection and immobilization of capture ligands, calibration, interference between antibodies and proteins and assay diluents, and compatibility of assay limits of quantification. We discuss potential solutions to these challenges. Criteria for assessing analytical multiplex assay performance include the range of linearity, analytical specificity, recovery, and comparison to a quality reference method. Quality control materials are not well developed for multiplexed protein immunoassays, and algorithms for interpreting multiplex quality control data are needed. SUMMARY Technical and operational challenges have hindered implementation of multiplexed assays in clinical settings. Formal procedures that guide multiplex assay configuration, analytical validation, and quality control are needed before broad application of multiplexed arrays can occur in the in vitro diagnostic market.
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Affiliation(s)
- Allison A Ellington
- Division of Cardiovascular Diseases, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
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25
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Morais S, Tortajada-Genaro LA, Arnandis-Chover T, Puchades R, Maquieira A. Multiplexed Microimmunoassays on a Digital Versatile Disk. Anal Chem 2009; 81:5646-54. [DOI: 10.1021/ac900359d] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sergi Morais
- Instituto de Química Molecular Aplicada, Departamento de Química, Universidad Politécnica de Valencia, Camino de Vera s/n, 46071 Valencia, Spain
| | - Luis A. Tortajada-Genaro
- Instituto de Química Molecular Aplicada, Departamento de Química, Universidad Politécnica de Valencia, Camino de Vera s/n, 46071 Valencia, Spain
| | - Tania Arnandis-Chover
- Instituto de Química Molecular Aplicada, Departamento de Química, Universidad Politécnica de Valencia, Camino de Vera s/n, 46071 Valencia, Spain
| | - Rosa Puchades
- Instituto de Química Molecular Aplicada, Departamento de Química, Universidad Politécnica de Valencia, Camino de Vera s/n, 46071 Valencia, Spain
| | - Angel Maquieira
- Instituto de Química Molecular Aplicada, Departamento de Química, Universidad Politécnica de Valencia, Camino de Vera s/n, 46071 Valencia, Spain
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26
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Kuhn E, Addona T, Keshishian H, Burgess M, Mani DR, Lee RT, Sabatine MS, Gerszten RE, Carr SA. Developing multiplexed assays for troponin I and interleukin-33 in plasma by peptide immunoaffinity enrichment and targeted mass spectrometry. Clin Chem 2009; 55:1108-17. [PMID: 19372185 DOI: 10.1373/clinchem.2009.123935] [Citation(s) in RCA: 217] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Protein biomarker candidates from discovery proteomics must be quantitatively verified in patient samples before they can progress to clinical validation. Here we demonstrate that peptide immunoaffinity enrichment coupled with stable isotope dilution mass spectrometry (SISCAPA-MRM) can be used to configure assays with performance suitable for candidate biomarker verification. As proof of principle, we configured SISCAPA assays for troponin I (cTnI), an established biomarker of cardiac injury, and interleukin 33 (IL-33), an emerging immunological and cardiovascular marker for which robust immunoassays are currently not available. METHODS We configured individual and multiplexed assays in which peptides were enriched from digested human plasma using antipeptide antibodies. Assay performance was established using response curves for peptides and proteins spiked into normal plasma. We quantified proteins using labeled peptides as internal standards, and we measured levels of cTnI in patients who underwent a planned myocardial infarction for hypertrophic obstructive cardiomyopathy. RESULTS Measurement of cTnI and IL-33 proteins from trypsin-digested plasma was linear from 1.5 to 5000 microg/L, with imprecision <13% for both proteins, processed individually or multiplexed. Results correlated well (R = 0.89) with a commercial immunoassay. CONCLUSIONS We used an established biomarker of cardiac injury and an emerging biomarker to demonstrate how SISCAPA can detect and quantify changes in concentration of proteins present at 1-10 microg/L in plasma. Our results demonstrate that these assays can be multiplexed and retain the necessary precision, reproducibility, and sensitivity to be applied to new and uncharacterized candidate biomarkers for verification of low-abundance proteins in blood.
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Affiliation(s)
- Eric Kuhn
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
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27
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YAN H, LI T, GUO Y. Separation of Aminobenzoic Acids by Gold Nanoparticle- modified Capillary Electrophoresis. CHINESE J CHEM 2009. [DOI: 10.1002/cjoc.200990125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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Kim HJ, Ahn KC, González-Techera A, González-Sapienza GG, Gee SJ, Hammock BD. Magnetic bead-based phage anti-immunocomplex assay (PHAIA) for the detection of the urinary biomarker 3-phenoxybenzoic acid to assess human exposure to pyrethroid insecticides. Anal Biochem 2009; 386:45-52. [PMID: 19101498 DOI: 10.1016/j.ab.2008.12.003.magnetic] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Revised: 11/29/2008] [Accepted: 12/01/2008] [Indexed: 05/21/2023]
Abstract
Noncompetitive immunoassays are advantageous over competitive assays for the detection of small molecular weight compounds. We recently demonstrated that phage peptide libraries can be an excellent source of immunoreagents that facilitate the development of sandwich-type noncompetitive immunoassays for the detection of small analytes, avoiding the technical challenges of producing anti-immunocomplex antibody. In this work we explore a new format that may help to optimize the performance of the phage anti-immunocomplex assay (PHAIA) technology. As a model system we used a polyclonal antibody to 3-phenoxybenzoic acid (3-PBA) and an anti-immunocomplex phage clone bearing the cyclic peptide CFNGKDWLYC. The assay setup with the biotinylated antibody immobilized onto streptavidin-coated magnetic beads significantly reduced the amount of coating antibody giving identical sensitivity (50% saturation of the signal (SC(50))=0.2-0.4ng/ml) to the best result obtained with direct coating of the antibody on ELISA plates. The bead-based assay tolerated up to 10 and 5% of methanol and urine matrix, respectively. This assay system accurately determined the level of spiked 3-PBA in different urine samples prepared by direct dilution or clean-up with solid-phase extraction after acidic hydrolysis with overall recovery of 80-120%.
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Affiliation(s)
- Hee-Joo Kim
- Department of Entomology and UCD Cancer Research Center, University of California, Davis, 95616, USA
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29
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Kim HJ, Ahn KC, González-Techera A, González-Sapienza GG, Gee SJ, Hammock BD. Magnetic bead-based phage anti-immunocomplex assay (PHAIA) for the detection of the urinary biomarker 3-phenoxybenzoic acid to assess human exposure to pyrethroid insecticides. Anal Biochem 2008; 386:45-52. [PMID: 19101498 DOI: 10.1016/j.ab.2008.12.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Revised: 11/29/2008] [Accepted: 12/01/2008] [Indexed: 11/25/2022]
Abstract
Noncompetitive immunoassays are advantageous over competitive assays for the detection of small molecular weight compounds. We recently demonstrated that phage peptide libraries can be an excellent source of immunoreagents that facilitate the development of sandwich-type noncompetitive immunoassays for the detection of small analytes, avoiding the technical challenges of producing anti-immunocomplex antibody. In this work we explore a new format that may help to optimize the performance of the phage anti-immunocomplex assay (PHAIA) technology. As a model system we used a polyclonal antibody to 3-phenoxybenzoic acid (3-PBA) and an anti-immunocomplex phage clone bearing the cyclic peptide CFNGKDWLYC. The assay setup with the biotinylated antibody immobilized onto streptavidin-coated magnetic beads significantly reduced the amount of coating antibody giving identical sensitivity (50% saturation of the signal (SC(50))=0.2-0.4ng/ml) to the best result obtained with direct coating of the antibody on ELISA plates. The bead-based assay tolerated up to 10 and 5% of methanol and urine matrix, respectively. This assay system accurately determined the level of spiked 3-PBA in different urine samples prepared by direct dilution or clean-up with solid-phase extraction after acidic hydrolysis with overall recovery of 80-120%.
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Affiliation(s)
- Hee-Joo Kim
- Department of Entomology and UCD Cancer Research Center, University of California, Davis, 95616, USA
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30
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Blais DR, Alvarez‐Puebla RA, Bravo‐Vasquez JP, Fenniri H, Pezacki JP. Multiplex pathogen detection based on spatially addressable microarrays of barcoded resins. Biotechnol J 2008; 3:948-53. [DOI: 10.1002/biot.200700236] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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31
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Park JY, Lee YS, Kim BH, Park SM. Label-free detection of antibody-antigen interactions on (R)-lipo-diaza-18-crown-6 self-assembled monolayer modified gold electrodes. Anal Chem 2008; 80:4986-93. [PMID: 18505271 DOI: 10.1021/ac8002374] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Novel (R)-diaza-18-crown-6 has been prepared by a simple two-step synthetic method and characterized for its ability to form a uniform self-assembled monolayer (SAM) on gold as well as to immobilize proteins using atomic force microscopy, quartz crystal microbalance, and electrochemical impedance spectroscopy (EIS) experiments. The (R)-lipo-diaza-18-crown-6 was shown to form a well-defined SAM on gold, which subsequently captures the antibody (Ab) molecules that in turn capture the antigen (Ag) molecules. The Ab molecules studied include antibody C-reactive protein (Ab-CRP) and antibody ferritin (Ab-ferritin) along with their Ag's, i.e., CRP and ferritin. Quantitative detection of the Ab-Ag interactions was accomplished by EIS experiments with a Fe(CN)6(3-/4-) redox probe present. The ratios of the charge-transfer resistances for the redox probe on the SAM-antibody-covered electrode to those with the antigen molecules attached show an excellent linearity for log[Ag] with lower detection limits than those of other SAMs for the electrochemical sensing of proteins.
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Affiliation(s)
- Jin-Young Park
- Department of Chemistry, Pohang University of Science and Technology, Pohang, Gyeongbuk 790-784, Korea
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Abstract
We critically evaluate the usefulness of different nanostructures described as labels, nanoscaffolds or separation media in immunoassays and nucleic-acid hybridization assays. Many of the great number of publications describe only theoretical aspects of using these nanostructures or nanoparticles, but do not verify their applicability in the presence of potential interferents that can be present in the sample matrix. We attempt a systematic study of the advantages and the limitations of using these new reagents in bioassays, the different assay formats for individual and multiplexed detection, and the capability of these assays in analyzing real samples.
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Affiliation(s)
- A. Gómez-Hens
- Department of Analytical Chemistry, “Marie Curie Annex” Building, Campus of Rabanales, University of Córdoba, E-14071 Córdoba, Spain
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33
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Rapid and quantitative DNA analysis of genetic mutations for polycystic kidney disease (PKD) using magnetic/luminescent nanoparticles. Anal Bioanal Chem 2008; 390:1829-35. [DOI: 10.1007/s00216-008-1892-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2007] [Revised: 01/11/2008] [Accepted: 01/17/2008] [Indexed: 12/16/2022]
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