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Li M, Wei J, Song Y, Chen F. Gold nanocrystals: optical properties, fine-tuning of the shape, and biomedical applications. RSC Adv 2022; 12:23057-23073. [PMID: 36090439 PMCID: PMC9380198 DOI: 10.1039/d2ra04242h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 07/29/2022] [Indexed: 02/06/2023] Open
Abstract
Noble metal nanomaterials with special physical and chemical properties have attracted considerable attention in the past decades. In particular, Au nanocrystals (NCs), which possess high chemical inertness and unique surface plasmon resonance (SPR), have attracted extensive research interest. In this study, we review the properties and preparation of Au NCs with different morphologies as well as their important applications in biological detection. The preparation of Au NCs with different shapes by many methods such as seed-mediated growth method, seedless synthesis, polyol process, ultrasonic method, and hydrothermal treatment has already been introduced. In the seed-mediated growth method, the influence factors in determining the final shape of Au NCs are discussed. Au NCs, which show significant size-dependent color differences are proposed for preparing biological probes to detect biomacromolecules such as DNA and protein, while probe conjugate molecules serves as unique coupling agents with a target. Particularly, Au nanorods (NRs) have some unique advantages in the application of biological probes and photothermal cancer therapy compared to Au nanoparticles (NPs).
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Affiliation(s)
- Meng Li
- Resources and Environment Innovation Institute, Shandong Jianzhu University Jinan 250101 P. R. China
| | - Jianlu Wei
- Department of Orthopaedic Surgery, Qilu Hospital Shandong University 107 Wenhua Xi Road Jinan 250012 P. R. China
| | - Yang Song
- Resources and Environment Innovation Institute, Shandong Jianzhu University Jinan 250101 P. R. China
| | - Feiyong Chen
- Resources and Environment Innovation Institute, Shandong Jianzhu University Jinan 250101 P. R. China
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2
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Gradient SERS Substrates with Multiple Resonances for Analyte Screening: Fabrication and SERS Applications. Molecules 2022; 27:molecules27165097. [PMID: 36014328 PMCID: PMC9414786 DOI: 10.3390/molecules27165097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
Surface-enhanced Raman spectroscopy (SERS) provides a strong enhancement to an inherently weak Raman signal, which strongly depends on the material, design, and fabrication of the substrate. Here, we present a facile method of fabricating a non-uniform SERS substrate based on an annealed thin gold (Au) film that offers multiple resonances and gap sizes within the same sample. It is not only chemically stable, but also shows reproducible trends in terms of geometry and plasmonic response. Scanning electron microscopy (SEM) reveals particle-like and island-like morphology with different gap sizes at different lateral positions of the substrate. Extinction spectra show that the plasmonic resonance of the nanoparticles/metal islands can be continuously tuned across the substrate. We observed that for the analytes 1,2-bis(4-pyridyl) ethylene (BPE) and methylene blue (MB), the maximum SERS enhancement is achieved at different lateral positions, and the shape of the extinction spectra allows for the correlation of SERS enhancement with surface morphology. Such non-uniform SERS substrates with multiple nanoparticle sizes, shapes, and interparticle distances can be used for fast screening of analytes due to the lateral variation of the resonances within the same sample.
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3
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Ul Haq T, Ullah R. Green thesis and characterization of gold nanoparticles (Au-NPs) using stem extract of Euphorbia neriifolia L. and evaluation of their antibacterial and antifungal potential. INTERNATIONAL JOURNAL OF NANOSCIENCE 2022. [DOI: 10.1142/s0219581x22500089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Bhatia A, Nandhakumar P, Kim G, Lee NS, Yoon YH, Yang H. Simple and fast Ag deposition method using a redox enzyme label and quinone substrate for the sensitive electrochemical detection of thyroid-stimulating hormone. Biosens Bioelectron 2022; 197:113773. [PMID: 34763152 DOI: 10.1016/j.bios.2021.113773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 11/01/2021] [Accepted: 11/04/2021] [Indexed: 11/25/2022]
Abstract
Enzyme-induced seedless Ag deposition is useful for selective Ag deposition and subsequent electrochemical Ag oxidation; however, a washing step is required after the deposition and before the electrochemical oxidation as the enzyme substrate can be oxidized during the electrochemical oxidation. Here, we report a fast Ag deposition method using a redox enzyme and quinone substrate that does not require a washing step. We found that the quinone substrate is reduced by a redox enzyme label, which is later oxidized to its original form via the reduction of Ag+ to Ag. Moreover, the quinone substrate is not electrochemically oxidized during the electrochemical Ag oxidation. We selected one diaphorase and 1,4-naphthoquinone from among seven redox enzymes (four diaphorases and three glucose-oxidizing enzymes) and six quinones, respectively. We applied this Ag deposition method for the detection of thyroid-stimulating hormone (TSH) over a dynamic range from 100 fg/mL to 100 ng/mL and found that TSH could be detected at concentrations as low as approximately 100 fg/mL in artificial serum. Therefore, the Ag deposition strategy developed in this study exhibits promising potential for ultrasensitive clinical applications.
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Affiliation(s)
- Aman Bhatia
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 46241, South Korea
| | - Ponnusamy Nandhakumar
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 46241, South Korea
| | - Gyeongho Kim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 46241, South Korea
| | | | | | - Haesik Yang
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 46241, South Korea.
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Panferov VG, Safenkova IV, Zherdev AV, Dzantiev BB. Methods for Increasing Sensitivity of Immunochromatographic Test Systems with Colorimetric Detection (Review). APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821020113] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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6
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Shirshahi V, Liu G. Enhancing the analytical performance of paper lateral flow assays: From chemistry to engineering. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116200] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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7
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Zhang L, Li X, Li Y, Yu HZ. A colorimetric immuno-microarray for the quantitation and direct visualization of illicit drugs in body fluids. Analyst 2020; 146:538-546. [PMID: 33165458 DOI: 10.1039/d0an01933j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The design and testing of integrated colorimetric microarray immunochips (immuno-microarrays) are reported for the quantitation and direct visual determination of multiple illicit drugs (e.g., morphine, cocaine and amphetamine) in body fluids. Such an immuno-microarray platform utilizes a competitive immunoassay format, which is based on silver staining for quantitative detection and multicolor staining for direct visualization (i.e., qualitative identification) of analytes present in the sample. Under optimized conditions, the dynamic response ranges of 3.7-1000, 1.1-300 and 1.5-300 ng mL-1 were achieved for amphetamine, cocaine, and morphine, respectively, which are wider towards low concentrations than those of standard enzyme-linked immunosorbent assay (ELISA) tests. The limits of detection (LODs) for morphine, cocaine, and amphetamine were determined to be 1.5 ± 0.1, 1.1 ± 0.1 and 3.7 ± 0.2 ng mL-1, respectively in oral fluids, which meet government regulations for law enforcement. The obvious advantages of multiplexing, simultaneous visual recognition, and accurate quantitation make the on-site detection feasible, confirming that such a colorimetric immuno-microarray holds promise for practical applications.
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Affiliation(s)
- Lingling Zhang
- College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
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Cid-Barrio L, Ruiz Encinar J, Costa-Fernández JM. Catalytic Gold Deposition for Ultrasensitive Optical Immunosensing of Prostate Specific Antigen. SENSORS 2020; 20:s20185287. [PMID: 32947809 PMCID: PMC7571086 DOI: 10.3390/s20185287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 11/30/2022]
Abstract
A major challenge in the development of bioanalytical methods is to achieve a rapid and robust quantification of disease biomarkers present at very low concentration levels in complex biological samples. An immunoassay platform is presented herein for ultrasensitive and fast detection of the prostate-specific antigen (PSA), a well-recognized cancer biomarker. A sandwich type immunosensor has been developed employing a detection antibody labeled with inorganic nanoparticles acting as tags for further indirect quantification of the analyte. The required high sensitivity is then achieved through a controlled gold deposition on the nanoparticle surface, carried out after completing the recognition step of the immunoassay, thus effectively amplifying the size of the nanoparticles from nm to µm range. Due to such an amplification procedure, quantification of the biomolecule could be carried out directly on the immunoassay plates using confocal microscopy for measurement of the reflected light produced by gold-enlarged nanostructures. The high specificity of the immunoassay was demonstrated with the addition of a major abundant protein in serum (albumin) at much higher concentrations. An extremely low detection limit for PSA quantification (LOD of 1.1 fg·mL−1 PSA) has been achieved. Such excellent LOD is 2–3 orders of magnitude lower than the clinically relevant PSA levels present in biological samples (4–10 ng·mL−1) and even to monitor eventual recurrence after clinical treatment of a prostate tumor (0.1 ng·mL−1). In fact, the broad dynamic range obtained (4 orders of magnitude) would allow the PSA quantification of diverse samples at very different relevant levels.
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Miranda A, Martínez L, De Beule PAA. Facile synthesis of an aminopropylsilane layer on Si/SiO 2 substrates using ethanol as APTES solvent. MethodsX 2020; 7:100931. [PMID: 32528863 PMCID: PMC7276439 DOI: 10.1016/j.mex.2020.100931] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 05/06/2020] [Accepted: 05/15/2020] [Indexed: 12/29/2022] Open
Abstract
(3-aminopropyl)triethoxysilane (APTES) is a commonly used organosilane on surface functionalization of silicon oxide surfaces. However, its deposition process from solution-phase usually involves the use of toluene, which has often been identified as crucial for the formation of an aminopropylsilane monolayer. Toluene is ranked as a problematic solvent in the guide developed by a group referred to as the solvent sub-team of CHEM21. In this work, we propose a facile synthetic route for functionalizing a silicon substrate with APTES via solution-phase approach using only solvents that are classified as recommended. The influence of the APTES concentration, reaction times and different post-deposition conditions using acetic acid and methanol were studied in order to evaluate the quality and thickness of the organosilane layers.The method uses ethanol as APTES solvent for functionalizing silicon dioxide surfaces and only uses solvents classified as recommended. The method uses a solution phase approach, does not require complicated equipment and can be prepared at room temperature.
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Affiliation(s)
- Adelaide Miranda
- International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga s/n, 4715-330 Braga, Portugal
| | - Lidia Martínez
- Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), Materials Science Factory, c/ Sor Juana Inés de la Cruz, 3, Madrid, 28049, Spain
| | - Pieter A A De Beule
- International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga s/n, 4715-330 Braga, Portugal
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Khoris IM, Chowdhury AD, Li TC, Suzuki T, Park EY. Advancement of capture immunoassay for real-time monitoring of hepatitis E virus-infected monkey. Anal Chim Acta 2020; 1110:64-71. [PMID: 32278401 DOI: 10.1016/j.aca.2020.02.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 02/07/2020] [Accepted: 02/08/2020] [Indexed: 12/30/2022]
Abstract
Rapid increasing outbreak of Hepatitis E virus (HEV) shows an urgent need of HEV detection. Instead of time consuming and expensive RT-qPCR, an efficient and quick monitoring system is in utmost demand which can be comparable with the RT-qPCR in term of reliability and detection limit. An advanced platform for immunoassay has been constructed in this study by a nanozyme that constitutes anti-HEV IgG antibody-conjugated gold nanoparticles (Ab-AuNPs) as core and in situ silver deposition on the surface of Ab-AuNPs as outer shell. The virus has been entrapped on the nanocomposites while the silver-shell has decomposed back to the silver ions (Ag+) by adding a tetramethylbenzidine (TMBZ) and hydrogen peroxide (H2O2) which indirectly quantifies the target virus concentration. Counterpart to only applying nanozyme, by incorporation of the enhanced effect of Ag shell on the AuNP-based nanozyme, the advance deposition has been confirmed to prove the signal amplification mechanism in the proposed immunoassay. Most importantly, the sensor performances have examined on the HEV, collected from the HEV-infected monkey over a period of 45 days. It was successfully correlated with the standard RT-qPCR data, showing the applicability of this immunoassay as a real-time monitoring on the HEV infection. The in situ formation of AuNPs@Ag as nanozyme in this capture immunoassay leads to a promising advancement over the conventional methods and nanozyme-based immunoassay in real application which can be a good substitute of RT-qPCR in near future.
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Affiliation(s)
- Indra Memdi Khoris
- Department of Applied Biological Chemistry, College of Agriculture, Graduate School of Integrated Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
| | - Ankan Dutta Chowdhury
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
| | - Tian-Cheng Li
- Department of Virology 2, National Institute of Infectious Diseases, 4-7-1 Gakuen, Musashimurayam-shi, Tokyo, 208-0011, Japan.
| | - Tetsuro Suzuki
- Department of Infectious Disease, Hamamatsu University School of Medicine, Handayama, Hamamatsu, 431-3125, Japan.
| | - Enoch Y Park
- Department of Applied Biological Chemistry, College of Agriculture, Graduate School of Integrated Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan; Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
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11
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Kwak J, Lee SS. Highly sensitive piezoelectric immunosensors employing signal amplification with gold nanoparticles. NANOTECHNOLOGY 2019; 30:445502. [PMID: 31362281 DOI: 10.1088/1361-6528/ab36c9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We present a quartz crystal microbalance (QCM) immunosensor for highly sensitive detection of prostate-specific antigen (PSA) in a human serum immunoassay. In particular, in this study, we employed signal amplification using and enlarging gold nanoparticles. Because QCM measures the change of resonance frequency according to the mass change occurring on the sensor surface, we could quantitatively analyze PSA based on a tremendous increase in mass by sandwich immunoassay using AuNP-conjugated anti-PSA-detecting antibody enhanced with subsequent gold staining. The limit of detection of the PSA immunoassay in human serum without gold staining enhancement was 687 pg ml-1 but was 48 pg ml-1 with the gold staining-mediated signal amplification. That is, amplifying the signal resulted in increased sensitivity and reproducibility of immunoassay in a human serum.
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Affiliation(s)
- Jiwon Kwak
- Department of Pharmaceutical Engineering, Soonchunhyang University, Asan, Republic of Korea
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12
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Abstract
Botulinum is a deadly bacterial toxin that causes neuroparalytic disease. However, appropriate tools to detect trace toxic proteins are scarce. This study presents a bead-based diffusometric technique for the rapid, simple, and quantitative detection of biological toxins. Functionalized particles called nano-immunosensors were fabricated by forming sandwiched immunocomplexes comprising Au nanoparticles (AuNPs), toxic proteins, and antibodies on fluorescent probe particles. Particle diffusivity tended to decline with increasing concentration of the target proteins. Calibration curves of purified botulinum toxins (0.01-500 ng/mL) were obtained from whole milk and bovine serum, and results suggested that measurement was independent of the background matrix. The activity of botulinum toxin was evaluated by coating synaptosomal-associated protein 25 (SNAP-25) on fluorescent probe particles. AuNP-conjugated antibodies attached to the probe particles when SNAP-25 proteins were cleaved by active botulinum. Thus, toxicity could be detected from slight changes in diffusivity. A short measurement time of 2 min and a limit of detection of 10 pg/mL were achieved. The nano-immunosensors demonstrated rapid biosensing capability and met the demands of onsite screening for food safety, medical instrument hygiene, and cosmetic surgery products.
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13
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Plasmonic biosensors for bacterial endotoxin detection on biomimetic C-18 supported fiber optic probes. Biosens Bioelectron 2019; 129:79-86. [DOI: 10.1016/j.bios.2018.12.045] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/18/2018] [Accepted: 12/21/2018] [Indexed: 01/14/2023]
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14
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Enhanced colorimetric detection of norovirus using in-situ growth of Ag shell on Au NPs. Biosens Bioelectron 2019; 126:425-432. [DOI: 10.1016/j.bios.2018.10.067] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 10/21/2018] [Accepted: 10/30/2018] [Indexed: 11/20/2022]
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Gahlaut SK, Kalyani N, Sharan C, Mishra P, Singh J. Smartphone based dual mode in situ detection of viability of bacteria using Ag nanorods array. Biosens Bioelectron 2019; 126:478-484. [DOI: 10.1016/j.bios.2018.11.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 11/05/2018] [Accepted: 11/15/2018] [Indexed: 01/01/2023]
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16
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Razo SC, Panferova NA, Panferov VG, Safenkova IV, Drenova NV, Varitsev YA, Zherdev AV, Pakina EN, Dzantiev BB. Enlargement of Gold Nanoparticles for Sensitive Immunochromatographic Diagnostics of Potato Brown Rot. SENSORS (BASEL, SWITZERLAND) 2019; 19:E153. [PMID: 30621133 PMCID: PMC6338966 DOI: 10.3390/s19010153] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 12/19/2018] [Accepted: 12/28/2018] [Indexed: 12/14/2022]
Abstract
Lateral flow immunoassay (LFIA) is a convenient tool for rapid field-based control of various bacterial targets. However, for many applications, the detection limits obtained by LFIA are not sufficient. In this paper, we propose enlarging gold nanoparticles' (GNPs) size to develop a sensitive lateral flow immunoassay to detect Ralstonia solanacearum. This bacterium is a quarantine organism that causes potato brown rot. We fabricated lateral flow test strips using gold nanoparticles (17.4 ± 1.0 nm) as a label and their conjugates with antibodies specific to R. solanacearum. We proposed a signal enhancement in the test strips' test zone due to the tetrachloroauric (III) anion reduction on the GNP surface, and the increase in size of the gold nanoparticles on the test strips was approximately up to 100 nm, as confirmed by scanning electron microscopy. Overall, the gold enhancement approach decreased the detection limit of R. solanacearum by 33 times, to as low as 3 × 10⁴ cells∙mL⁻1 in the potato tuber extract. The achieved detection limit allows the diagnosis of latent infection in potato tubers. The developed approach based on gold enhancement does not complicate analyses and requires only 3 min. The developed assay together with the sample preparation and gold enlargement requires 15 min. Thus, the developed approach is promising for the development of lateral flow test strips and their subsequent introduction into diagnostic practice.
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Affiliation(s)
- Shyatesa C Razo
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
- Agricultural-Technological Institute, RUDN University, Miklukho-Maklaya Street 8/2, 117198 Moscow, Russia.
| | - Natalia A Panferova
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
| | - Vasily G Panferov
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
| | - Irina V Safenkova
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
| | - Natalia V Drenova
- All-Russian Plant Quarantine Centre, Pogranichnaya Street 32, Bykovo-2, Moscow Region, 140150 Moscow, Russia.
| | - Yuri A Varitsev
- A.G. Lorch All-Russian Potato Research Institute, Lorch Street 23, Kraskovo, Moscow Region, 140051 Moscow, Russia.
| | - Anatoly V Zherdev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
| | - Elena N Pakina
- Agricultural-Technological Institute, RUDN University, Miklukho-Maklaya Street 8/2, 117198 Moscow, Russia.
| | - Boris B Dzantiev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
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Huang R, Zhang K, Zhu G, Sun Z, He S, Chen W. Blocking-Free ELISA Using a Gold Nanoparticle Layer Coated Commercial Microwell Plate. SENSORS (BASEL, SWITZERLAND) 2018; 18:E3537. [PMID: 30347684 PMCID: PMC6210089 DOI: 10.3390/s18103537] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 10/12/2018] [Accepted: 10/16/2018] [Indexed: 12/28/2022]
Abstract
Enzyme-linked immunosorbent assays (ELISA) show extensive application in immunoassays, to detect and monitor protein biomarkers in clinical diagnosis. Nevertheless, the time required and its multiple steps limit its application. We take advantage of a polyethyleneimine (PEI) gold nanoparticle (GNP) coated microwell plate to perform blocking-free ELISA, in which no nonspecific protein adsorption appears on the GNP layer. If the PEI-GNP coated microwell plate and immobilization of captured antibodies on the plate are prepared in advance, such as using an ELISA kit, the whole ELISA process can be finished in less than 2 h. Meanwhile, we have ensured that the GNP layer can preserve the precision and good linearity of ELISA without causing negative effects on the plate.
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Affiliation(s)
- Ruijia Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Ke Zhang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Guoshuai Zhu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Zhencheng Sun
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Songliang He
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
| | - Wenwen Chen
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.
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18
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Lee J, Adegoke O, Park EY. High-Performance Biosensing Systems Based on Various Nanomaterials as Signal Transducers. Biotechnol J 2018; 14:e1800249. [PMID: 30117715 DOI: 10.1002/biot.201800249] [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: 05/14/2018] [Revised: 08/06/2018] [Indexed: 12/15/2022]
Abstract
Recently, highly sensitive and selective biosensors have become necessary for improving public health and well-being. To fulfill this need, high-performance biosensing systems based on various nanomaterials, such as nanoparticles, carbon nanomaterials, and hybrid nanomaterials, are developed. Numerous nanomaterials show excellent physical properties, including plasmonic, magnetic, catalytic, mechanical and fluorescence properties and high electrical conductivities, and these unique and beneficial properties have contributed to the fabrication of high-performance biosensors with various applications, including in optical, electrical, and electrochemical detection platforms. In addition, these properties can be transformed to signals for the detection of biomolecules. In this review, various types of nanomaterial-based biosensors are introduced, and they show high sensitivity and selectivity. In addition, the potential applications of these sensors on the biosensing of several types of biomolecules are also discussed. These nanomaterials-based biosensing systems provide a significant improvement on healthcare including rapid monitoring and early detection of infectious disease for public health.
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Affiliation(s)
- Jaewook Lee
- Laboratory of Biotechnology, Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
| | - Oluwasesan Adegoke
- Laboratory of Biotechnology, Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
| | - Enoch Y Park
- Laboratory of Biotechnology, Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan.,Laboratory of Biotechnology, Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan.,Laboratory of Biotechnology, College of Agriculture, Academic Institute, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
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19
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Woodard LE, Dennis CL, Borchers JA, Attaluri A, Velarde E, Dawidczyk C, Searson PC, Pomper MG, Ivkov R. Nanoparticle architecture preserves magnetic properties during coating to enable robust multi-modal functionality. Sci Rep 2018; 8:12706. [PMID: 30139940 PMCID: PMC6107675 DOI: 10.1038/s41598-018-29711-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/17/2018] [Indexed: 11/09/2022] Open
Abstract
Magnetic iron oxide nanoparticles (MIONs) have established a niche as a nanomedicine platform for diagnosis and therapy, but they present a challenging surface for ligand functionalization which limits their applications. On the other hand, coating MIONs with another material such as gold to enhance these attachments introduces other complications. Incomplete coating may expose portions of the iron oxide core, or the coating process may alter their magnetic properties. We describe synthesis and characterization of iron oxide/silica/gold core-shell nanoparticles to elucidate the effects of a silica-gold coating process and its impact on the resulting performance. In particular, small angle neutron scattering reveals silica intercalates between iron oxide crystallites that form the dense core, likely preserving the magnetic properties while enabling formation of a continuous gold shell. The synthesized silica-gold-coated MIONs demonstrate magnetic heating properties consistent with the original iron oxide core, with added x-ray contrast for imaging and laser heating.
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Affiliation(s)
- Lauren E Woodard
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Cindi L Dennis
- Material Measurement Laboratory, NIST, Gaithersburg, MD, 20899-8550, USA
| | - Julie A Borchers
- NIST Center for Neutron Research, NIST, Gaithersburg, MD, 20899-6102, USA
| | - Anilchandra Attaluri
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Mechanical Engineering, School of Science, Engineering, and Technology, Pennsylvania State University, Harrisburg,Middletown, PA, 17057, USA
| | - Esteban Velarde
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Charlene Dawidczyk
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Peter C Searson
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, 21218, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Martin G Pomper
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, 21218, USA
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
- Division of Cancer Imaging Research, Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Robert Ivkov
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, 21218, USA.
- NIST Center for Neutron Research, NIST, Gaithersburg, MD, 20899-6102, USA.
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.
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20
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Ye H, Xia X. Enhancing the sensitivity of colorimetric lateral flow assay (CLFA) through signal amplification techniques. J Mater Chem B 2018; 6:7102-7111. [PMID: 32254626 DOI: 10.1039/c8tb01603h] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Colorimetric lateral flow assay (CLFA) is one of a handful of diagnostic technologies that can be truly taken out of the laboratory for point-of-care testing without the need for any equipment and skilled personnel. Despite its simplicity and practicality, it remains a grand challenge to substantially enhance the detection sensitivity of CLFA without adding complexity. Such a limitation in sensitivity inhibits many critical applications such as early detection of significant cancers and severe infectious diseases. With the rapid development of materials science and nanotechnology, signal amplification techniques that hold great potential to break through the existing detection limit barrier of CLFA have been developed in recent years. This article specifically highlights these emerging techniques for CLFA development. The rationale behind and advantages and limitations of each technique are discussed. Perspectives on future research directions in this niche and important field are provided.
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Affiliation(s)
- Haihang Ye
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, USA.
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21
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Yu T, Wei Q. Plasmonic molecular assays: Recent advances and applications for mobile health. NANO RESEARCH 2018; 11:5439-5473. [PMID: 32218913 PMCID: PMC7091255 DOI: 10.1007/s12274-018-2094-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/08/2018] [Accepted: 05/09/2018] [Indexed: 05/15/2023]
Abstract
Plasmonics-based biosensing assays have been extensively employed for biomedical applications. Significant advancements in use of plasmonic assays for the construction of point-of-care (POC) diagnostic methods have been made to provide effective and urgent health care of patients, especially in resourcelimited settings. This rapidly progressive research area, centered on the unique surface plasmon resonance (SPR) properties of metallic nanostructures with exceptional absorption and scattering abilities, has greatly facilitated the development of cost-effective, sensitive, and rapid strategies for disease diagnostics and improving patient healthcare in both developed and developing worlds. This review highlights the recent advances and applications of plasmonic technologies for highly sensitive protein and nucleic acid biomarker detection. In particular, we focus on the implementation and penetration of various plasmonic technologies in conventional molecular diagnostic assays, and discuss how such modification has resulted in simpler, faster, and more sensitive alternatives that are suited for point-of-use. Finally, integration of plasmonic molecular assays with various portable POC platforms for mobile health applications are highlighted.
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Affiliation(s)
- Tao Yu
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Campus Box 7905, Raleigh, NC 27695 USA
| | - Qingshan Wei
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Campus Box 7905, Raleigh, NC 27695 USA
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22
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Guo Z, Jia Y, Song X, Lu J, Lu X, Liu B, Han J, Huang Y, Zhang J, Chen T. Giant Gold Nanowire Vesicle-Based Colorimetric and SERS Dual-Mode Immunosensor for Ultrasensitive Detection of Vibrio parahemolyticus. Anal Chem 2018; 90:6124-6130. [PMID: 29701459 DOI: 10.1021/acs.analchem.8b00292] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Conventional methods for the detection of Vibrio parahemolyticus (VP) usually need tedious, labor-intensive processes, and have low sensitivity, which further limits their practical applications. Herein, we developed a simple and efficient colorimetry and surface-enhanced Raman scattering (SERS) dual-mode immunosensor for sensitive detection of VP, by employing giant Au vesicles with anchored tiny gold nanowires (AuNW) as a smart probe. Due to the larger specific surface and special hollow structure of giant Au vesicles, silver staining would easily lead to vivid color change for colorimetric analysis and further amplify SERS signals. The t-test was further used to determine if two sets of data from colorimetry and SERS were significantly different from each other. The result shows that there was no significant difference between data from the two methods. Two sets of data can mutually validate each other and avoid false positive and negative detection. The designed colorimetry-SERS dual-mode sensor would be very promising in various applications such as food safety inspection, personal healthcare, and on-site environmental monitoring.
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Affiliation(s)
- Zhiyong Guo
- Faculty of Materials Science and Chemical Engineering , Ningbo University , Ningbo 315211 , P.R. China
| | - Yaru Jia
- Faculty of Materials Science and Chemical Engineering , Ningbo University , Ningbo 315211 , P.R. China.,Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Division of Polymer and Composite Materials , Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences , Ningbo 315201 , P. R. China
| | - Xinxin Song
- Faculty of Materials Science and Chemical Engineering , Ningbo University , Ningbo 315211 , P.R. China
| | - Jing Lu
- Faculty of Materials Science and Chemical Engineering , Ningbo University , Ningbo 315211 , P.R. China
| | - Xuefei Lu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Division of Polymer and Composite Materials , Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences , Ningbo 315201 , P. R. China
| | - Baoqing Liu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Division of Polymer and Composite Materials , Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences , Ningbo 315201 , P. R. China
| | - Jiaojiao Han
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Division of Polymer and Composite Materials , Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences , Ningbo 315201 , P. R. China
| | - Youju Huang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Division of Polymer and Composite Materials , Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences , Ningbo 315201 , P. R. China.,Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Jiawei Zhang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Division of Polymer and Composite Materials , Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences , Ningbo 315201 , P. R. China
| | - Tao Chen
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Division of Polymer and Composite Materials , Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences , Ningbo 315201 , P. R. China
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23
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Pham XH, Hahm E, Kim TH, Kim HM, Lee SH, Lee YS, Jeong DH, Jun BH. Enzyme-catalyzed Ag Growth on Au Nanoparticle-assembled Structure for Highly Sensitive Colorimetric Immunoassay. Sci Rep 2018; 8:6290. [PMID: 29674713 PMCID: PMC5908853 DOI: 10.1038/s41598-018-24664-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/03/2018] [Indexed: 12/22/2022] Open
Abstract
We have developed a sensitive colorimetric immunoassay with broad dynamic range using enzyme-catalyzed Ag growth on gold nanoparticle (NP)-assembled silica (SiO2@Au@Ag). To reduce Ag+ ion content and promote Ag growth on the assembled Au NPs, alkaline phosphatase (AP)-based enzymatic amplification was incorporated, which considerably increased the colorimetric read-out. As a model study, sandwich enzyme-linked immunosorbent assay (ELISA) was used to quantify target IgG. The immune complexes capture the Ab-IgG-AP-labeled detection Ab and trigger the enzyme-catalyzed reaction to convert 2-phospho-L-ascorbic acid to ascorbic acid in the presence of the target IgG. Ascorbic acid reduced Ag+ to Ag, which formed Ag shells on the surface of SiO2@Au and enhanced the absorbance of the SiO2@Au@Ag solution. Plasmonic immunoassay showed a significant linear relationship between absorbance and the logarithm of IgG concentration in the range of ca. 7 × 10-13 M to 7 × 10-11 M. The detection limit was at 1.4 × 10-13 M, which is several hundred folds higher than that of any conventional colorimetric immunoassay. Thus, our novel approach of signal-amplification can be used for highly sensitive in vitro diagnostics and detection of target proteins with the naked eye without using any sophisticated instrument.
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Affiliation(s)
- Xuan-Hung Pham
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Eunil Hahm
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Tae Han Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Hyung-Mo Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Sang Hun Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Yoon-Sik Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Dae Hong Jeong
- Department of Chemistry Education, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea.
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24
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Dias JT, Svedberg G, Nystrand M, Andersson-Svahn H, Gantelius J. Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis. J Vis Exp 2018:57297. [PMID: 29578517 PMCID: PMC5931481 DOI: 10.3791/57297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The use of nanoprobes such as gold, silver, silica or iron-oxide nanoparticles as detection reagents in bioanalytical assays can enable high sensitivity and convenient colorimetric readout. However, high densities of nanoparticles are typically needed for detection. The available synthesis-based enhancement protocols are either limited to gold and silver nanoparticles or rely on precise enzymatic control and optimization. Here, we present a protocol to enhance the colorimetric readout of gold, silver, silica, and iron oxide nanoprobes. It was observed that the colorimetric signal can be improved by up to a 10000-fold factor. The basis for such signal enhancement strategies is the chemical reduction of Au3+ to Au0. There are several chemical reactions that enable the reduction of Au3+ to Au0. In the protocol, Good's buffers and H2O2 are used and it is possible to favor the deposition of Au0 onto the surface of existing nanoprobes, in detriment of the formation of new gold nanoparticles. The protocol consists of the incubation of the microarray with a solution consisting of chloroauric acid and H2O2 in 2-(N-morpholino)ethanesulfonic acid pH 6 buffer following the nanoprobe-based detection assay. The enhancement solution can be applied to paper and glass-based sensors. Moreover, it can be used in commercially available immunoassays as demonstrated by the application of the method to a commercial allergen microarray. The signal development requires less than 5 min of incubation with the enhancement solution and the readout can be assessed by naked eye or low-end image acquisition devices such as a table-top scanner or a digital camera.
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Affiliation(s)
- Jorge T Dias
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology
| | - Gustav Svedberg
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology
| | - Mats Nystrand
- Global Research and Development, Thermo Fisher Scientific IDD
| | - Helene Andersson-Svahn
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology
| | - Jesper Gantelius
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology;
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25
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Choi B, Dou X, Fang Y, Phillips BM, Jiang P. Outstanding surface plasmon resonance performance enabled by templated oxide gratings. Phys Chem Chem Phys 2018; 18:26078-26087. [PMID: 27711494 DOI: 10.1039/c6cp04977j] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we report a simple and scalable soft-lithography-based templating technology for fabricating Au-covered oxide (titania and zirconia) gratings by using DVDs as a structural template. The resulting plasmonic gratings simultaneously exhibit very high surface plasmon resonance (SPR) sensitivity (up to ∼940 nm per refractive index unit, nm per RIU) and figure of merit (FOM, up to 62.5). The effects of thermal annealing of the templated oxide gratings on their final plasmonic properties have been systematically investigated by both experiments and finite-difference time-domain (FDTD) simulations. Higher SPR sensitivities and slightly reduced FOMs have been observed for the annealed gratings. Additionally, the amplitude of the SPR dips gradually decreases with increasing annealing temperatures. Scanning electron microscopy and X-ray diffraction show that the annealing process enlarges the crystal domain sizes of the oxides and smoothens the final plasmonic grating surface. Systematic FDTD simulations reveal that the SPR properties (e.g., dip amplitude) of Au-covered oxide gratings are significantly affected by the deformation of the track-pitch structure caused by thermal annealing, agreeing with the experimental results. The outstanding SPR performance combined with the high thermal stability of the crystalline oxides could make the templated plasmonic gratings a promising SPR platform for many important sensing applications, such as in situ probing heterogeneous catalytic reactions under realistic conditions.
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Affiliation(s)
- Baeck Choi
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Xuan Dou
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Yin Fang
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Blayne M Phillips
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Peng Jiang
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
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26
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Kwak J, Park HJ, Lee SS. Gold Nanoparticle-based Novel Biosensors for Detecting Glycated Hemoglobin. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11360] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jiwon Kwak
- Department of Pharmaceutical Engineering; Soonchunhhyang University; Chungnam 31538 South Korea
| | - Hyeoun Ji Park
- Department of Pharmaceutical Engineering; Soonchunhhyang University; Chungnam 31538 South Korea
| | - Soo Suk Lee
- Department of Pharmaceutical Engineering; Soonchunhhyang University; Chungnam 31538 South Korea
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27
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Nandhakumar P, Kim B, Lee NS, Yoon YH, Lee K, Yang H. Nitrosoreductase-Like Nanocatalyst for Ultrasensitive and Stable Biosensing. Anal Chem 2017; 90:807-813. [DOI: 10.1021/acs.analchem.7b03364] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ponnusamy Nandhakumar
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Byeongyoon Kim
- Department
of Chemistry, Korea University, Seoul 02841, Korea
| | | | | | - Kwangyeol Lee
- Department
of Chemistry, Korea University, Seoul 02841, Korea
| | - Haesik Yang
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
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28
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Gahlaut SK, Yadav K, Sharan C, Singh JP. Quick and Selective Dual Mode Detection of H2S Gas by Mobile App Employing Silver Nanorods Array. Anal Chem 2017; 89:13582-13588. [DOI: 10.1021/acs.analchem.7b04064] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Shashank Kumar Gahlaut
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Kavita Yadav
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Chandrashekhar Sharan
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Jitendra Pratap Singh
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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29
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Panferov VG, Safenkova IV, Byzova NA, Varitsev YA, Zherdev AV, Dzantiev BB. Silver-enhanced lateral flow immunoassay for highly-sensitive detection of potato leafroll virus. FOOD AGR IMMUNOL 2017. [DOI: 10.1080/09540105.2017.1401044] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Vasily G. Panferov
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Irina V. Safenkova
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Nadezhda A. Byzova
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Yuri A. Varitsev
- A.G. Lorch All-Russian Potato Research Institute, Kraskovo, Moscow region, Russia
| | - Anatoly V. Zherdev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Boris B. Dzantiev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
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30
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Li X, Yang F, Wong JXH, Yu HZ. Integrated Smartphone-App-Chip System for On-Site Parts-Per-Billion-Level Colorimetric Quantitation of Aflatoxins. Anal Chem 2017; 89:8908-8916. [DOI: 10.1021/acs.analchem.7b01379] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Xiaochun Li
- Key
Laboratory of Advanced Transducers and Intelligent Control Systems
(Ministry of Education and Shanxi Province), College of Physics and
Optoelectronics, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P.R. China
| | - Fan Yang
- Key
Laboratory of Advanced Transducers and Intelligent Control Systems
(Ministry of Education and Shanxi Province), College of Physics and
Optoelectronics, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P.R. China
| | - Jessica X. H. Wong
- Department
of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Hua-Zhong Yu
- Key
Laboratory of Advanced Transducers and Intelligent Control Systems
(Ministry of Education and Shanxi Province), College of Physics and
Optoelectronics, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P.R. China
- Department
of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
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31
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Gong Y, Hu J, Choi JR, You M, Zheng Y, Xu B, Wen T, Xu F. Improved LFIAs for highly sensitive detection of BNP at point-of-care. Int J Nanomedicine 2017; 12:4455-4466. [PMID: 28670119 PMCID: PMC5479264 DOI: 10.2147/ijn.s135735] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Heart failure (HF) has become a major cause of morbidity and mortality with a significant global economic burden. Although well-established clinical tests could provide early diagnosis, access to these tests is limited in developing countries, where a relatively higher incidence of HF is present. This has prompted an urgent need for developing a cost-effective, rapid and robust diagnostic tool for point-of-care (POC) detection of HF. Lateral flow immunoassay (LFIA) has found widespread applications in POC diagnostics. However, the low sensitivity of LFIA limits its ability to detect important HF biomarkers (e.g., brain natriuretic peptide [BNP]) that are normally present in low concentration in blood. To address this issue, we developed an improved LFIA by optimizing the gold nanoparticle (GNP)–antibody conjugate conditions (e.g., the conjugate pH and the amount of added antibody), the diameter of GNP and the concentration of antibody embedded on the test line and modifying the structure of test strip. Through these improvements, the proposed test strip enabled the detection of BNP down to 0.1 ng/mL within 10–15 min, presenting ~15-fold sensitivity enhancement over conventional lateral flow assay. We also successfully applied our LFIA in the analysis of BNP in human serum samples, highlighting its potential use for clinical assessment of HF. The developed LFIA for BNP could rapidly rule out HF with the naked eye, offering tremendous potential for POC test and personalized medicine.
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Affiliation(s)
- Yan Gong
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University.,Xi'an Diandi Biotech Company
| | - Jie Hu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University
| | - Jane Ru Choi
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University
| | - Minli You
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University
| | - Yamin Zheng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University
| | - Bo Xu
- School of Finance and Economics, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | | | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University
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32
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Tsai TT, Huang TH, Chang CJ, Yi-Ju Ho N, Tseng YT, Chen CF. Antibacterial cellulose paper made with silver-coated gold nanoparticles. Sci Rep 2017; 7:3155. [PMID: 28600506 PMCID: PMC5466604 DOI: 10.1038/s41598-017-03357-w] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 04/26/2017] [Indexed: 12/17/2022] Open
Abstract
In this study, we investigated the antibacterial activity of silver-coated gold nanoparticles (Au-Ag NPs) immobilized on cellulose paper. Ag NPs are known to have strong antibacterial properties, while Au NPs are biocompatible and relatively simple to prepare. We made the Au-Ag NPs using a facile process called Ag enhancement, in which Au NPs serve as the nuclei for precipitation of a Ag coating, the thickness of which can be easily controlled by varying the ratio of the reactants. After synthesis, electron microscopy showed that the Au-Ag NPs displayed a core-shell structure, and that they could be successfully immobilized onto a cellulose membrane by heat treatment. We then investigated the antibacterial properties of this NP-coated cellulose paper against E. coli JM109. The inhibition rate, growth curve, and AATCC 100 activity test showed that cellulose paper coated with 15 nm Au-Ag NPs possessed excellent antibacterial activity against E. coli JM109. These results suggest that Au-Ag NPs immobilized on cellulose paper could be a valuable antibacterial technology for applications such as food packaging, clothing, wound dressings, and other personal care products.
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Affiliation(s)
- Tsung-Ting Tsai
- Department of Orthopaedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, 333, Taiwan
| | - Tse-Hao Huang
- Department of Orthopaedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, 333, Taiwan.,Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan
| | - Chih-Jung Chang
- Department of Orthopaedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, 333, Taiwan
| | - Natalie Yi-Ju Ho
- Department of Orthopaedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, 333, Taiwan
| | - Yu-Ting Tseng
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Chien-Fu Chen
- Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan.
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33
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Metal-enhanced luminescence: Current trend and future perspectives- A review. Anal Chim Acta 2017; 971:1-13. [DOI: 10.1016/j.aca.2017.03.051] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 03/22/2017] [Accepted: 03/23/2017] [Indexed: 01/06/2023]
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Emerging Cytokine Biosensors with Optical Detection Modalities and Nanomaterial-Enabled Signal Enhancement. SENSORS 2017; 17:s17020428. [PMID: 28241443 PMCID: PMC5335944 DOI: 10.3390/s17020428] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 02/12/2017] [Accepted: 02/18/2017] [Indexed: 12/17/2022]
Abstract
Protein biomarkers, especially cytokines, play a pivotal role in the diagnosis and treatment of a wide spectrum of diseases. Therefore, a critical need for advanced cytokine sensors has been rapidly growing and will continue to expand to promote clinical testing, new biomarker development, and disease studies. In particular, sensors employing transduction principles of various optical modalities have emerged as the most common means of detection. In typical cytokine assays which are based on the binding affinities between the analytes of cytokines and their specific antibodies, optical schemes represent the most widely used mechanisms, with some serving as the gold standard against which all existing and new sensors are benchmarked. With recent advancements in nanoscience and nanotechnology, many of the recently emerging technologies for cytokine detection exploit various forms of nanomaterials for improved sensing capabilities. Nanomaterials have been demonstrated to exhibit exceptional optical properties unique to their reduced dimensionality. Novel sensing approaches based on the newly identified properties of nanomaterials have shown drastically improved performances in both the qualitative and quantitative analyses of cytokines. This article brings together the fundamentals in the literature that are central to different optical modalities developed for cytokine detection. Recent advancements in the applications of novel technologies are also discussed in terms of those that enable highly sensitive and multiplexed cytokine quantification spanning a wide dynamic range. For each highlighted optical technique, its current detection capabilities as well as associated challenges are discussed. Lastly, an outlook for nanomaterial-based cytokine sensors is provided from the perspective of optimizing the technologies for sensitivity and multiplexity as well as promoting widespread adaptations of the emerging optical techniques by lowering high thresholds currently present in the new approaches.
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Xing Y, Gao Q, Zhang Y, Ma L, Loh KY, Peng M, Chen C, Cui Y. The improved sensitive detection of C-reactive protein based on the chemiluminescence immunoassay by employing monodispersed PAA-Au/Fe3O4 nanoparticles and zwitterionic glycerophosphoryl choline. J Mater Chem B 2017; 5:3919-3926. [DOI: 10.1039/c7tb00637c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Monodispersed PAA-Au/Fe3O4 NPs were engineered for highly sensitive CRP assay with zwitterionic glycerophosphoryl choline as the co-blocking agent.
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Affiliation(s)
- Yan Xing
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Qin Gao
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Yanmin Zhang
- Shaanxi Province Hospital of traditional Chinese medicine
- Xi'an
- P. R. China
| | - Le Ma
- National Engineering Research Center for Miniaturized Detection Systems
- Northwest University
- Xi'an
- P. R. China
| | - Kang Yong Loh
- Department of Chemistry
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Mingli Peng
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Chao Chen
- National Engineering Research Center for Miniaturized Detection Systems
- Northwest University
- Xi'an
- P. R. China
| | - Yali Cui
- National Engineering Research Center for Miniaturized Detection Systems
- Northwest University
- Xi'an
- P. R. China
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36
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Electrochemical biosensor for silver ions based on amplification of DNA–Au bio–bar codes and silver enhancement. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2016.12.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Li J, Gao Z, Ye H, Wan S, Pierce M, Tang D, Xia X. A non-enzyme cascade amplification strategy for colorimetric assay of disease biomarkers. Chem Commun (Camb) 2017; 53:9055-9058. [DOI: 10.1039/c7cc04521b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A non-enzyme cascade amplification strategy for colorimetric assay of disease biomarkers with substantially enhanced detection sensitivity has been developed.
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Affiliation(s)
- Jiuxing Li
- Department of Chemistry
- Michigan Technological University
- Houghton
- USA
| | - Zhuangqiang Gao
- Department of Chemistry
- Michigan Technological University
- Houghton
- USA
- Key Laboratory of Analysis and Detection for Food Safety (Fujian Province & Ministry of Education)
| | - Haihang Ye
- Department of Chemistry
- Michigan Technological University
- Houghton
- USA
| | - Shulin Wan
- Department of Chemistry
- Michigan Technological University
- Houghton
- USA
| | - Meghan Pierce
- Department of Chemical Engineering
- Michigan Technological University
- Houghton
- USA
| | - Dianping Tang
- Key Laboratory of Analysis and Detection for Food Safety (Fujian Province & Ministry of Education)
- Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province)
- Department of Chemistry
- Fuzhou University
- Fuzhou 350108
| | - Xiaohu Xia
- Department of Chemistry
- Michigan Technological University
- Houghton
- USA
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38
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Li F, Li J, Tang Y, Wang C, Li XF, Le XC. Targeted Enlargement of Aptamer Functionalized Gold Nanoparticles for Quantitative Protein Analysis. Proteomes 2016; 5:proteomes5010001. [PMID: 28248252 PMCID: PMC5372222 DOI: 10.3390/proteomes5010001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/12/2016] [Accepted: 12/18/2016] [Indexed: 11/17/2022] Open
Abstract
The ability to selectively amplify the detection signals for targets over interferences is crucial when analyzing proteins in a complicated sample matrix. Here, we describe a targeted enlargement strategy that can amplify the light-scattering signal from aptamer-functionalized gold nanoparticles (Apt-AuNP) with high specificity for quantitative protein analysis. This strategy is achieved by labeling target proteins with competitively protected Apt-AuNP probes and enlarging the probes with gold enhancement. This competitive protection strategy could effectively eliminate nonspecific protein adsorptions from a sample matrix, leading to a highly specific labeling of the target protein. As a result, the subsequent amplification of the light-scattering signal by gold enhancement only occurs in the presence of the target protein. This strategy was successfully demonstrated by analyzing human α-thrombin in human serum samples in a Western blot format.
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Affiliation(s)
- Feng Li
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada.
| | - Jingjing Li
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada.
| | - Yanan Tang
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada.
| | - Chuan Wang
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada.
| | - Xing-Fang Li
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada.
| | - X Chris Le
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada.
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39
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Dzimitrowicz A, Jamroz P, Nyk M, Pohl P. Application of Direct Current Atmospheric Pressure Glow Microdischarge Generated in Contact with a Flowing Liquid Solution for Synthesis of Au-Ag Core-Shell Nanoparticles. MATERIALS 2016; 9:ma9040268. [PMID: 28773393 PMCID: PMC5502932 DOI: 10.3390/ma9040268] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 03/26/2016] [Accepted: 03/30/2016] [Indexed: 11/16/2022]
Abstract
A direct current atmospheric pressure glow microdischarge (dc-μAPGD) generated between an Ar nozzle microjet and a flowing liquid was applied to produce Au-Ag core-shell nanoparticles (Au@AgCSNPs) in a continuous flow system. Firstly, operating dc-μAPGD with the flowing solution of the Au(III) ions as the cathode, the Au nanoparticles (AuNPs) core was produced. Next, to produce the core-shell nanostructures, the collected AuNPs solution was immediately mixed with an AgNO₃ solution and passed through the system with the reversed polarity to fabricate the Ag nanoshell on the AuNPs core. The formation of Au@AgCSNPs was confirmed using ultraviolet-visible (UV-Vis) absorbance spectrophotometry, transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDS). Three localized surface plasmon resonance absorption bands with wavelengths centered at 372, 546, and 675 nm were observed in the UV-Vis spectrum of Au@AgCSNPs, confirming the reduction of both the Au(III) and Ag(I) ions. The right configuration of metals in Au@AgCSNPs was evidenced by TEM. The Au core diameter was 10.2 ± 2.0 nm, while the thickness of the Ag nanoshell was 5.8 ± 1.8 nm. The elemental composition of the bimetallic nanoparticles was also confirmed by EDS. It is possible to obtain 90 mL of a solution containing Au@AgCSNPs per hour using the applied microdischarge system.
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Affiliation(s)
- Anna Dzimitrowicz
- Department of Analytical Chemistry and Chemical Metallurgy, Faculty of Chemistry, Wroclaw University of Technology, Wybrzeze St. Wyspianskiego 27, 50-370 Wroclaw, Poland.
| | - Piotr Jamroz
- Department of Analytical Chemistry and Chemical Metallurgy, Faculty of Chemistry, Wroclaw University of Technology, Wybrzeze St. Wyspianskiego 27, 50-370 Wroclaw, Poland.
| | - Marcin Nyk
- Department of Advanced Materials Engineering and Modelling, Faculty of Chemistry, Wroclaw University of Technology, Wybrzeze Stanislawa Wyspianskiego 27, 50-370 Wroclaw, Poland.
| | - Pawel Pohl
- Department of Analytical Chemistry and Chemical Metallurgy, Faculty of Chemistry, Wroclaw University of Technology, Wybrzeze St. Wyspianskiego 27, 50-370 Wroclaw, Poland.
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40
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Panferov VG, Safenkova IV, Varitsev YA, Drenova NV, Kornev KP, Zherdev AV, Dzantiev BB. Development of the sensitive lateral flow immunoassay with silver enhancement for the detection of Ralstonia solanacearum in potato tubers. Talanta 2016; 152:521-30. [PMID: 26992550 DOI: 10.1016/j.talanta.2016.02.050] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 02/18/2016] [Accepted: 02/20/2016] [Indexed: 10/22/2022]
Abstract
Ralstonia solanacearum is a dangerous and economically important pathogen of potatoes and other agricultural crops. Therefore, rapid and sensitive methods for its routine diagnostics are necessary. The aim of this study was to develop a rapid control method for R. solanacearum with a low limit of detection (LOD) based on a lateral flow immunoassay (LFIA) with silver enhancement. To minimize the LOD, the membrane type, antibody amount for conjugation with gold nanoparticles, conjugate concentration and antibody concentration in the analytical zone were optimized. Silver enhancement was used to decrease the LOD of the LFIA. For silver enhancement, release fiberglass membranes with pre-absorbed silver lactate and hydroquinone were placed on the analytical zone, and a drop of silver lactate was added. The LFIA with silver enhancement was found to be 10-fold more sensitive (LOD 2×10(2) CFU/mL; 20 min) in comparison with the common analysis (LOD 2×10(3) CFU/mL; 10 min). The specificity of the developed LFIA was studied using different strains of R. solanacearum (54 samples) and other widespread bacterial pathogens (18 samples). The LFIA detected all tested strains, whereas non-specific reactions were not observed. The developed tests were used for the control of bacteria in extracts of infected and non-infected potato tubers, and the quantitative analysis results (based on the densitometry of line colouration) were confirmed by ELISA with a correlation coefficient equal to 0.965.
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Affiliation(s)
- Vasily G Panferov
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia
| | - Irina V Safenkova
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia
| | - Yury A Varitsev
- A.G. Lorch All-Russian Potato Research Institute, Kraskovo-1, Moscow region, 140051, Russia
| | - Natalia V Drenova
- All-Russian Plant Quarantine Centre, Bykovo-2, Moscow region, 140150, Russia
| | - Konstantin P Kornev
- All-Russian Plant Quarantine Centre, Bykovo-2, Moscow region, 140150, Russia
| | - Anatoly V Zherdev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia
| | - Boris B Dzantiev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia
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41
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Chandra S, Gäbler C, Schliebe C, Lang H, Bahadur D. Fabrication of a label-free electrochemical immunosensor using a redox active ferrocenyl dendrimer. NEW J CHEM 2016. [DOI: 10.1039/c6nj00830e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An amperometric immunosensor based on a redox active ferrocenyl end-grafted PAMAM dendrimer provides highly sensitive detection of immunoglobulin, down to 2 ng mL−1.
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Affiliation(s)
- Sudeshna Chandra
- Department of Chemistry
- Sunandan Divatia School of Science
- NMIMS University
- Vile Parle (West) Mumbai-400056
- India
| | - Christian Gäbler
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
| | - Christian Schliebe
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
| | - Heinrich Lang
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
| | - Dhirendra Bahadur
- Department of Metallurgical Engineering and Material Science
- Indian Institute of Technology Bombay
- Mumbai-400076
- India
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42
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Kalita P, Dasgupta A, Sritharan V, Gupta S. Nanoparticle–Drug Bioconjugate as Dual Functional Affinity Ligand for Rapid Point-of-Care Detection of Endotoxin in Water and Serum. Anal Chem 2015; 87:11007-12. [DOI: 10.1021/acs.analchem.5b02957] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Prasanta Kalita
- Department
of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Anshuman Dasgupta
- Department
of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Venkataraman Sritharan
- Department of Molecular Diagnostics & Biomarkers, Global Medical Education and Research Foundation, Hyderabad 500004, India
| | - Shalini Gupta
- Department
of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Piludu M, Medda L, Cugia F, Monduzzi M, Salis A. Silver Enhancement for Transmission Electron Microscopy Imaging of Antibody Fragment-Gold Nanoparticles Conjugates Immobilized on Ordered Mesoporous Silica. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:9458-63. [PMID: 26267521 DOI: 10.1021/acs.langmuir.5b02830] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Ordered mesoporous silica (OMS) materials are receiving great attention as possible carriers for valuable but unstable drugs as, for example, therapeutic proteins. A key issue is to prove that the therapeutic protein is effectively able to penetrate the pores of OMS during the adsorption step. Here, we immobilized an antibody fragment [F(ab')GAMIgG] conjugated with ultrasmall gold nanoparticles (GNPs) onto amino-functionalized SBA-15 (SBA-NH2) mesoporous silica. The aim of this work is the visualization of the location of the conjugates adsorbed onto SBA-NH2 with transmission electron microscopy (TEM). Because of the ultrasmall size of GNPs (<1 nm), we use the silver enhancement procedure to amplify their size. In this procedure, ultrathin sections of conjugate-loaded SBA-NH2 particles are prepared by a ultramicrotome sectioning technique. The ultrasmall GNPs located on the top side of the 70-90 nm thick slices act as microcrystallization nucleation sites for the deposition of reduced metallic silver. Consequently, the ultrasmall GNPs increase their size. This allows for the direct imaging of the conjugates adsorbed. We clearly localize the F(ab')GAMIgG-GNPs conjugates either on the external surface of the particles or inside the mesopores of SBA-NH2 through TEM.
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Affiliation(s)
- Marco Piludu
- Department of Biomedical Sciences, and ‡Department of Chemical and Geological Sciences, University of Cagliari , CSGI and CNBS, Cittadella Universitaria, Strada Statale 554 Bivio Sestu, 09042 Monserrato Cagliari, Italy
| | - Luca Medda
- Department of Biomedical Sciences, and ‡Department of Chemical and Geological Sciences, University of Cagliari , CSGI and CNBS, Cittadella Universitaria, Strada Statale 554 Bivio Sestu, 09042 Monserrato Cagliari, Italy
| | - Francesca Cugia
- Department of Biomedical Sciences, and ‡Department of Chemical and Geological Sciences, University of Cagliari , CSGI and CNBS, Cittadella Universitaria, Strada Statale 554 Bivio Sestu, 09042 Monserrato Cagliari, Italy
| | - Maura Monduzzi
- Department of Biomedical Sciences, and ‡Department of Chemical and Geological Sciences, University of Cagliari , CSGI and CNBS, Cittadella Universitaria, Strada Statale 554 Bivio Sestu, 09042 Monserrato Cagliari, Italy
| | - Andrea Salis
- Department of Biomedical Sciences, and ‡Department of Chemical and Geological Sciences, University of Cagliari , CSGI and CNBS, Cittadella Universitaria, Strada Statale 554 Bivio Sestu, 09042 Monserrato Cagliari, Italy
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44
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Wong JXH, Li X, Liu FSF, Yu HZ. Direct Reading of Bona Fide Barcode Assays for Diagnostics with Smartphone Apps. Sci Rep 2015; 5:11727. [PMID: 26122608 PMCID: PMC4485167 DOI: 10.1038/srep11727] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 06/03/2015] [Indexed: 12/17/2022] Open
Abstract
The desire to develop new point-of-care (POC) diagnostic tools has led to the adaptation of smartphones to tackle limitations in state-of-the-art instrumentation and centralized laboratory facilities. Today's smartphones possess the computer-like ability to image and process data using mobile apps; barcode scanners are one such type of apps. We demonstrate herein that a diagnostic assay can be performed by patterning immunoassay strips in a bona fide barcode format such that after target binding and signal enhancement, the linear barcode can be read directly with a standard smartphone app. Quantitative analysis can then be performed based on the grayscale intensities with a customized mobile app. This novel diagnostic concept has been validated for a real-world application, i.e., the detection of human chorionic gonadotropin, a pregnancy hormone. With the possibility of multiplex detection, the barcode assay protocol promises to boost POC diagnosis research by the direct adaptation of mobile devices and apps.
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Affiliation(s)
- Jessica X H Wong
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Xiaochun Li
- Key Laboratory of Advanced Transducers and Intelligent Control Systems (Ministry of Education), College of Physics and Optoelectronic Engineering, Taiyuan University of Technology, Shanxi 030024, P.R. China
| | - Frank S F Liu
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Hua-Zhong Yu
- 1] Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada [2] Key Laboratory of Advanced Transducers and Intelligent Control Systems (Ministry of Education), College of Physics and Optoelectronic Engineering, Taiyuan University of Technology, Shanxi 030024, P.R. China
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45
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Electrochemical immunoassay for the protein biomarker mucin 1 and for MCF-7 cancer cells based on signal enhancement by silver nanoclusters. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1471-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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46
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Subramaniam AB, Gonidec M, Shapiro ND, Kresse KM, Whitesides GM. Metal-amplified Density Assays, (MADAs), including a Density-Linked Immunosorbent Assay (DeLISA). LAB ON A CHIP 2015; 15:1009-1022. [PMID: 25474561 DOI: 10.1039/c4lc01161a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This paper reports the development of Metal-amplified Density Assays, or MADAs - a method of conducting quantitative or multiplexed assays, including immunoassays, by using Magnetic Levitation (MagLev) to measure metal-amplified changes in the density of beads labeled with biomolecules. The binding of target analytes (i.e. proteins, antibodies, antigens) to complementary ligands immobilized on the surface of the beads, followed by a chemical amplification of the binding in a form that results in a change in the density of the beads (achieved by using gold nanoparticle-labeled biomolecules, and electroless deposition of gold or silver), translates analyte binding events into changes in density measureable using MagLev. A minimal model based on diffusion-limited growth of hemispherical nuclei on a surface reproduces the dynamics of the assay. A MADA - when performed with antigens and antibodies - is called a Density-Linked Immunosorbent Assay, or DeLISA. Two immunoassays provided a proof of principle: a competitive quantification of the concentration of neomycin in whole milk, and a multiplexed detection of antibodies against Hepatitis C virus NS3 protein and syphilis T. pallidum p47 protein in serum. MADAs, including DeLISAs, require, besides the requisite biomolecules and amplification reagents, minimal specialized equipment (two permanent magnets, a ruler or a capillary with calibrated length markings) and no electrical power to obtain a quantitative readout of analyte concentration. With further development, the method may be useful in resource-limited or point-of-care settings.
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Affiliation(s)
- Anand Bala Subramaniam
- Department of Chemistry & Chemical Biology, Harvard University, 230 Mallinckrodt Bldg., 12 Oxford St., Cambridge, MA 02138, USA.
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47
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Sulaiman F, Akanji M, Oloyede H, Sulaiman A, Olatunde A, Joel E, Adewale T, Adeboye H, Idris S, Quadri A, Oyegoke R, Adeyemi O. Oral Exposure to Silver/Gold Nanoparticles: Status of Rat Lipid Profile, Serum Metabolites and Tissue Morphology. JOURNAL OF MEDICAL SCIENCES 2015. [DOI: 10.3923/jms.2015.71.79] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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48
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Shi X, Gao X, Zhang L, Li Y, Fan L, Yu HZ. Binary DNA hairpin-based colorimetric biochip for simultaneous detection of Pb2+ and Hg2+ in real-world samples. Analyst 2015; 140:2608-12. [DOI: 10.1039/c5an00120j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel microarray-format colorimetric biochip was constructed for simultaneously detecting the trace amounts of Pb2+ and Hg2+ in various real-world samples.
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Affiliation(s)
- Xiaoli Shi
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Xiaoyi Gao
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Lingling Zhang
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Yunchao Li
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Louzhen Fan
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Hua-Zhong Yu
- Department of Chemistry
- Simon Fraser University
- Burnaby
- Canada
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49
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Jiaul Haque AM, Kim J, Dutta G, Kim S, Yang H. Redox cycling-amplified enzymatic Ag deposition and its application in the highly sensitive detection of creatine kinase-MB. Chem Commun (Camb) 2015; 51:14493-6. [DOI: 10.1039/c5cc06117b] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This communication reports a novel enzymatic Ag-deposition scheme combined with chemical–chemical redox cycling by reduced β-nicotinamide adenine dinucleotide.
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Affiliation(s)
- Al-Monsur Jiaul Haque
- Department of Chemistry and Chemistry Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Korea
| | - Jihye Kim
- Department of Chemistry and Chemistry Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Korea
| | - Gorachand Dutta
- Department of Chemistry and Chemistry Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Korea
| | - Sinyoung Kim
- Department of Laboratory Medicine
- Yonsei University College of Medicine
- Seoul 135-720
- Korea
| | - Haesik Yang
- Department of Chemistry and Chemistry Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Korea
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50
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Shi X, Wen J, Li Y, Zheng Y, Zhou J, Li X, Yu HZ. DNA molecular beacon-based plastic biochip: a versatile and sensitive scanometric detection platform. ACS APPLIED MATERIALS & INTERFACES 2014; 6:21788-21797. [PMID: 24852130 DOI: 10.1021/am5007029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this paper, we report a novel DNA molecular beacon (MB)-based plastic biochip platform for scanometric detection of a range of analytical targets. Hairpin DNA strands, which are dually modified with amino and biotin groups at their two ends are immobilized on a disposable plastic (polycarbonate) substrate as recognition element and gold nanoparticle-assisted silver-staining as signal reading protocol. Initially, the immobilized DNA probes are in their folded forms; upon target binding the hairpin secondary structure of the probe strand is "forced" open (i.e., converted to the unfolded state). Nanogold-streptavidin conjugates can then bind the terminal biotin groups and promote the deposition of rather large silver particles which can be either directly visualized or quantified with a standard flatbed scanner. We demonstrate that with properly designed probe sequences and optimized preparation conditions, a range of molecular targets, such as DNA strands, proteins (thrombin) and heavy metal ions (Hg(2+)), can be detected with high sensitivity and excellent selectivity. The detection can be done in both standard physiological buffers and real world samples. This constitutes a platform technology for performing rapid, sensitive, cost-effective, and point-of-care (POC) chemical analysis and medical diagnosis.
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Affiliation(s)
- Xiaoli Shi
- Department of Chemistry, Beijing Normal University , Beijing 100875, P. R. China
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