101
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Han X, Shokri Kojori H, Leblanc RM, Kim SJ. Ultrasensitive Plasmonic Biosensors for Real-Time Parallel Detection of Alpha-L-Fucosidase and Cardiac-Troponin-I in Whole Human Blood. Anal Chem 2018; 90:7795-7799. [DOI: 10.1021/acs.analchem.8b01816] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Xu Han
- Huston Labs, 1951 NW Seventh Avenue, Suite 600, Miami, Florida 33136, United States
| | - Hossein Shokri Kojori
- Department of Electrical and Computer Engineering, University of Miami, Coral Gables, Florida 33146, United States
| | - Roger M. Leblanc
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Sung Jin Kim
- Department of Electrical and Computer Engineering, University of Miami, Coral Gables, Florida 33146, United States
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102
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Garrido E, Pla L, Lozano‐Torres B, El Sayed S, Martínez‐Máñez R, Sancenón F. Chromogenic and Fluorogenic Probes for the Detection of Illicit Drugs. ChemistryOpen 2018; 7:401-428. [PMID: 29872615 PMCID: PMC5974560 DOI: 10.1002/open.201800034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Indexed: 01/02/2023] Open
Abstract
The consumption of illicit drugs has increased exponentially in recent years and has become a problem that worries both governments and international institutions. The rapid emergence of new compounds, their easy access, the low levels at which these substances are able to produce an effect, and their short time of permanence in the organism make it necessary to develop highly rapid, easy, sensitive, and selective methods for their detection. Currently, the most widely used methods for drug detection are based on techniques that require large measurement times, the use of sophisticated equipment, and qualified personnel. Chromo- and fluorogenic methods are an alternative to those classical procedures.
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Affiliation(s)
- Eva Garrido
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y, Desarrollo Tecnológico (IDM)Universitat Politècnica de València, Universitat de ValènciaCamí de Vera s/n46022ValènciaSpain
| | - Luis Pla
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y, Desarrollo Tecnológico (IDM)Universitat Politècnica de València, Universitat de ValènciaCamí de Vera s/n46022ValènciaSpain
| | - Beatriz Lozano‐Torres
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y, Desarrollo Tecnológico (IDM)Universitat Politècnica de València, Universitat de ValènciaCamí de Vera s/n46022ValènciaSpain
| | - Sameh El Sayed
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y, Desarrollo Tecnológico (IDM)Universitat Politècnica de València, Universitat de ValènciaCamí de Vera s/n46022ValènciaSpain
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER-BBN)
| | - Ramón Martínez‐Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y, Desarrollo Tecnológico (IDM)Universitat Politècnica de València, Universitat de ValènciaCamí de Vera s/n46022ValènciaSpain
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER-BBN)
- Departmento de QuímicaUniversitat Politècnica de ValènciaCamí de Vera s/n46022ValènciaSpain
| | - Félix Sancenón
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y, Desarrollo Tecnológico (IDM)Universitat Politècnica de València, Universitat de ValènciaCamí de Vera s/n46022ValènciaSpain
- CIBER de BioingenieríaBiomateriales y Nanomedicina (CIBER-BBN)
- Departmento de QuímicaUniversitat Politècnica de ValènciaCamí de Vera s/n46022ValènciaSpain
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103
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Hui CY, Liu M, Li Y, Brennan JD. A Paper Sensor Printed with Multifunctional Bio/Nano Materials. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712903] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Christy Y. Hui
- Biointerfaces Institute; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4O3 Canada
| | - Meng Liu
- Biointerfaces Institute; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4O3 Canada
- Department of Biochemistry and Biomedical Sciences; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4K1 Canada
- School of Environmental Science and Technology; Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education); Dalian University of Technology; Dalian 116024 China
| | - Yingfu Li
- Biointerfaces Institute; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4O3 Canada
- Department of Biochemistry and Biomedical Sciences; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4K1 Canada
| | - John D. Brennan
- Biointerfaces Institute; McMaster University; 1280 Main Street West Hamilton Ontario L8S 4O3 Canada
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104
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Hui CY, Liu M, Li Y, Brennan JD. A Paper Sensor Printed with Multifunctional Bio/Nano Materials. Angew Chem Int Ed Engl 2018; 57:4549-4553. [PMID: 29504183 DOI: 10.1002/anie.201712903] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 02/12/2018] [Indexed: 01/08/2023]
Abstract
We report a paper-based aptasensor platform that uses two reaction zones and a connecting bridge along with printed multifunctional bio/nano materials to achieve molecular recognition and signal amplification. Upon addition of analyte to the first zone, a fluorescently labelled DNA or RNA aptamer is desorbed from printed graphene oxide, rapidly producing an initial fluorescence signal. The released aptamer then flows to the second zone where it reacts with printed reagents to initiate rolling circle amplification, generating DNA amplicons containing a peroxidase-mimicking DNAzyme, which produces a colorimetric readout that can be read in an equipment-free manner or with a smartphone. The sensor was demonstrated using an RNA aptamer for adenosine triphosphate (a bacterial marker) and a DNA aptamer for glutamate dehydrogenase (Clostridium difficile marker) with excellent sensitivity and specificity. These targets could be detected in spiked serum or feacal samples, demonstrating the potential for testing clinical samples.
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Affiliation(s)
- Christy Y Hui
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4O3, Canada
| | - Meng Liu
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4O3, Canada.,Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4K1, Canada.,School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian, 116024, China
| | - Yingfu Li
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4O3, Canada.,Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4K1, Canada
| | - John D Brennan
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4O3, Canada
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105
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Kim H, Beack S, Han S, Shin M, Lee T, Park Y, Kim KS, Yetisen AK, Yun SH, Kwon W, Hahn SK. Multifunctional Photonic Nanomaterials for Diagnostic, Therapeutic, and Theranostic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30. [PMID: 29363198 DOI: 10.1002/adma.201701460] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 10/20/2017] [Indexed: 05/08/2023]
Abstract
The last decade has seen dramatic progress in the principle, design, and fabrication of photonic nanomaterials with various optical properties and functionalities. Light-emitting and light-responsive nanomaterials, such as semiconductor quantum dots, plasmonic metal nanoparticles, organic carbon, and polymeric nanomaterials, offer promising approaches to low-cost and effective diagnostic, therapeutic, and theranostic applications. Reasonable endeavors have begun to translate some of the promising photonic nanomaterials to the clinic. Here, current research on the state-of-the-art and emerging photonic nanomaterials for diverse biomedical applications is reviewed, and the remaining challenges and future perspectives are discussed.
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Affiliation(s)
- Hyemin Kim
- PHI BIOMED Co., #613, 12 Gangnam-daero 65-gil, Seocho-gu, Seoul, 06612, South Korea
| | - Songeun Beack
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Seulgi Han
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Myeonghwan Shin
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Taehyung Lee
- Department of Chemical Engineering, POSTECH, 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Yoonsang Park
- Department of Chemical Engineering, POSTECH, 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Ki Su Kim
- Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne St., UP-5, Cambridge, MA, 02139, USA
| | - Ali K Yetisen
- Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne St., UP-5, Cambridge, MA, 02139, USA
| | - Seok Hyun Yun
- Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne St., UP-5, Cambridge, MA, 02139, USA
| | - Woosung Kwon
- Department of Chemical and Biological Engineering, Sookmyung Women's University, 100 Cheongpa-ro 47-gil, Seoul, 04310, South Korea
| | - Sei Kwang Hahn
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
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106
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Zhang L, Yuan Y, Zhang Y, Liu Z, Xiao W, Nie J, Li J. Equipment-Free Quantitative Aptamer-Based Colorimetric Assay Based on Target-Mediated Viscosity Change. ACS OMEGA 2018; 3:1451-1457. [PMID: 30023804 PMCID: PMC6044812 DOI: 10.1021/acsomega.7b01814] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 01/24/2018] [Indexed: 06/08/2023]
Abstract
In this paper, we describe an aptamer-based colorimetric assay (ABCA), which integrates enzyme-loaded microparticles for signal amplification with distance measurement for equipment-free quantitative readout. The distance measurement readout is on the basis of target-induced selective reduction in viscosity of reaction solution. Its utility is well demonstrated with inexpensive, sensitive, and selective detection of adenosine (model analyte) in buffer samples and real samples of human serum and urine with the naked eye. This ABCA method just requires operators to simply count the number of colored distance-relevant marked bars on the calibrated glass microsyringes (testing containers) to provide quantitative results. It thus holds great promise for wide applications particularly in limited-resource settings.
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107
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Chen CY, Wang CM, Chen PS, Liao WS. Self-standing aptamers by an artificial defect-rich matrix. NANOSCALE 2018; 10:3191-3197. [PMID: 29372203 DOI: 10.1039/c7nr07381j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The classical alkanethiol post-passivation can prevent nonspecific binding of nucleotide bases onto supporting substrates and help aptamers transition from a "lying down" to a "standing up" orientation. However, the surface probes display lower binding affinity towards targets than those in bulk solutions due to unsatisfied hybridization spaces on the alkanethiol passivated substrate. To overcome this challenge, an artificial defect-rich matrix possessing an aptamer "self-standing" property created by chemical lift-off lithography (CLL) is demonstrated. This approach provided artificial defects on a hydroxyl-terminated alkanethiol self-assembled monolayer (SAM), which allowed the insertion of thiolated aptamers. The diluted surface molecular environment assisted aptamers not only to "self-stand" on the surface, but also to separate from each other, providing a suitable surface aptamer density and sufficient space for capturing targets. With this approach, the binding affinity of the aptamer towards a target was comparable to solution-type probes, showing higher recognition efficiency than that in conventional methods.
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Affiliation(s)
- Chong-You Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
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108
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Hakimian F, Ghourchian H, Hashemi AS, Arastoo MR, Behnam Rad M. Ultrasensitive optical biosensor for detection of miRNA-155 using positively charged Au nanoparticles. Sci Rep 2018; 8:2943. [PMID: 29440644 PMCID: PMC5811613 DOI: 10.1038/s41598-018-20229-z] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/11/2018] [Indexed: 01/10/2023] Open
Abstract
An ultrasensitive optical biosensor for microRNA-155 (miR-155) was developed to diagnose breast cancer at early stages. At first, the probe DNA covalently bind to the negatively charged gold nanoparticles (citrate-capped AuNPs). Then, the target miR-155 electrostatically adsorb onto the positively charged gold nanoparticles (polyethylenimine-capped AuNP) surface. Finally, by mixing citrate-capped AuNP/probe and polyethylenimine-capped AuNP/miR-155, hybridization occurs and the optical signal of the mixture give a measure to quantify the miR-155 content. The proposed biosensor is able to specify 3-base-pair mismatches and genomic DNA from target miR-155. The novelty of this biosensor is in its ability to trap the label-free target by its branched positively charged polyethylenimine. This method increases loading the target on the polyethylenimine-capped AuNPs' surface. So, proposed sensor enables miR-155 detection at very low concentrations with the detection limit of 100 aM and a wide linear range from 100 aM to 100 fM.
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Affiliation(s)
- Fatemeh Hakimian
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | | | - Azam Sadat Hashemi
- Hematology, Oncology & Genetics Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Reza Arastoo
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran
| | - Mohammad Behnam Rad
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
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109
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Buckhout-White S, Person C, Medintz IL, Goldman ER. Restriction Enzymes as a Target for DNA-Based Sensing and Structural Rearrangement. ACS OMEGA 2018; 3:495-502. [PMID: 31457907 PMCID: PMC6641459 DOI: 10.1021/acsomega.7b01333] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/10/2017] [Indexed: 05/04/2023]
Abstract
DNA nanostructures have been shown viable for the creation of complex logic-enabled sensing motifs. To date, most of these types of devices have been limited to the interaction with strictly DNA-type inputs. Restriction endonuclease represents a class of enzyme with endogenous specificity to DNA, and we hypothesize that these can be integrated with a DNA structure for use as inputs to trigger structural transformation and structural rearrangement. In this work, we reconfigured a three-arm DNA switch, which utilizes a cyclic Förster resonance energy transfer interaction between three dyes to produce complex output for the detection of three separate input regions to respond to restriction endonucleases, and investigated the efficacy of the enzyme targets. We demonstrate the ability to use three enzymes in one switch with no nonspecific interaction between cleavage sites. Further, we show that the enzymatic digestion can be harnessed to expose an active toehold into the DNA structure, allowing for single-pot addition of a small oligo in solution.
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Affiliation(s)
- Susan Buckhout-White
- Center for Bio/Molecular
Science and Engineering, Code 6900, U.S.
Naval Research Laboratory, Washington, DC 20375, United States
| | - Chanel Person
- Center for Bio/Molecular
Science and Engineering, Code 6900, U.S.
Naval Research Laboratory, Washington, DC 20375, United States
| | - Igor L. Medintz
- Center for Bio/Molecular
Science and Engineering, Code 6900, U.S.
Naval Research Laboratory, Washington, DC 20375, United States
| | - Ellen R. Goldman
- Center for Bio/Molecular
Science and Engineering, Code 6900, U.S.
Naval Research Laboratory, Washington, DC 20375, United States
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110
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La Penna G, Chelli R. Structural Insights into the Osteopontin-Aptamer Complex by Molecular Dynamics Simulations. Front Chem 2018; 6:2. [PMID: 29441346 PMCID: PMC5797602 DOI: 10.3389/fchem.2018.00002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 01/08/2018] [Indexed: 12/17/2022] Open
Abstract
Osteopontin is an intrinsically disordered protein involved in tissue remodeling. As a biomarker for pathological hypertrophy and fibrosis, the protein is targeted by an RNA aptamer. In this work, we model the interactions between osteopontin and its aptamer, including mono- (Na+) and divalent (Mg2+) cations. The molecular dynamics simulations suggest that the presence of divalent cations forces the N-terminus of osteopontin to bind the shell of divalent cations adsorbed over the surface of its RNA aptamer, the latter exposing a high negative charge density. The osteopontin plasticity as a function of the local concentration of Mg is discussed in the frame of the proposed strategies for osteopontin targeting as biomarker and in theranostic.
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Affiliation(s)
- Giovanni La Penna
- Istituto di Chimica dei Composti Organometallici, Consiglio Nazionale delle Ricerche (CNR), Florence, Italy
| | - Riccardo Chelli
- Dipartimento di Chimica, Università di Firenze, Florence, Italy
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111
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Masciotti V, Naumenko D, Lazzarino M, Piantanida L. Tuning Gold Nanoparticles Plasmonic Properties by DNA Nanotechnology. Methods Mol Biol 2018; 1811:279-297. [PMID: 29926460 DOI: 10.1007/978-1-4939-8582-1_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The engineering of the optical and plasmonic properties of metallic nanostructure is one of the key ingredients for the complete control of materials at the nanoscale. Here we show how it is possible to control the plasmonic resonance of complex architectures of gold nanoparticles using the peculiar properties of DNA Watson and Crick pairing rules. In this chapter, we will first introduce all the steps required to generate, purify, and characterize DNA nanostructures, then we will guide the reader to the main steps required to decorate them with a precise amount of gold nanoparticles and, finally, we will describe the main approach used to characterize their plasmonic response.
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Affiliation(s)
- Valentina Masciotti
- Università Degli Studi di Trieste, Trieste, Italy.,IOM-CNR Laboratorio TASC, Trieste, Italy
| | | | | | - Luca Piantanida
- IOM-CNR Laboratorio TASC, Trieste, Italy. .,Department of Physics, Durham University, Durham, UK.
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112
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Shoara AA, Slavkovic S, Donaldson LW, Johnson PE. Analysis of the interaction between the cocaine-binding aptamer and its ligands using fluorescence spectroscopy. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0380] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We used fluorescence spectroscopy to measure the binding affinity and provide new insights into the binding mechanism of cocaine and quinine with the cocaine-binding DNA aptamer. Using the intrinsic fluorescence of quinine and cocaine, we have observed quenching of ligand fluorescence upon binding of the aptamer. Quantification of this quenching provides an easy method to measure the binding constant using small amounts of sample. The observed quenching coupled with a red shift of the Stokes shift in the emission spectrum indicates that quinine and cocaine interact with the aptamer through stacking interactions.
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Affiliation(s)
- Aron A. Shoara
- Department of Chemistry and Centre for Research on Biomolecular Interactions, York University, Toronto, ON M3J 1P3, Canada
- Department of Chemistry and Centre for Research on Biomolecular Interactions, York University, Toronto, ON M3J 1P3, Canada
| | - Sladjana Slavkovic
- Department of Chemistry and Centre for Research on Biomolecular Interactions, York University, Toronto, ON M3J 1P3, Canada
- Department of Chemistry and Centre for Research on Biomolecular Interactions, York University, Toronto, ON M3J 1P3, Canada
| | - Logan W. Donaldson
- Department of Chemistry and Centre for Research on Biomolecular Interactions, York University, Toronto, ON M3J 1P3, Canada
- Department of Chemistry and Centre for Research on Biomolecular Interactions, York University, Toronto, ON M3J 1P3, Canada
| | - Philip E. Johnson
- Department of Chemistry and Centre for Research on Biomolecular Interactions, York University, Toronto, ON M3J 1P3, Canada
- Department of Chemistry and Centre for Research on Biomolecular Interactions, York University, Toronto, ON M3J 1P3, Canada
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113
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Le NH, Nguyen BK, Ye G, Peng C, Chen JIL. Tuning the Sensing Performance of Multilayer Plasmonic Core-Satellite Assemblies for Rapid Detection of Targets from Lysed Cells. ACS Sens 2017; 2:1578-1583. [PMID: 29130305 DOI: 10.1021/acssensors.7b00566] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Optical sensors based on discrete plasmonic nanostructures are invaluable for probing biomolecular interactions when applied as plasmonic rulers or reconfigurable multinanoparticle assemblies. However, their adaptation as a versatile sensing platform is limited by the research-grade instrumentation required for single-nanostructure imaging and/or spectroscopy and complex data fitting and analysis. Additionally, the dynamic range is often too narrow for the quantitative analysis of targets of interest in biodiagnostics, food safety, or environmental monitoring. Herein we present plasmonic assembly comprising a core nanoparticle surrounded by multiple layers of satellite nanoparticles through aptamer linker. The layer-by-layer assembly of the satellite nanoparticles yields uniform discrete nanoparticle clusters on a substrate with enhanced optical properties. Binding of the model target (adenosine 5'-triphosphate, ATP) induces disassembly and leads to a dramatic decrease in the scattering intensity that can be analyzed readily from darkfield images. We demonstrate that the sensing performance, such as detection limit, dynamic range, and sensitivity, can be tuned by controlling the size of the assembly. The substrate-anchored nanoparticle assemblies are selective to only ATP, and not other adenine-containing compounds. By adapting the methodology to a flexible support, cellular ATP can be directly detected by lysing adherent cells in close contact with the plasmonic assemblies-a process that does not require any sample preparation or purification. Enhancing the optical detection signal via designing and engineering nanoparticle assemblies could enable their use with low-cost portable imaging systems and broaden their applicability beyond the study of biomolecular interaction.
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Affiliation(s)
- Nguyen Hoang Le
- Department of Chemistry and ‡Department of Biology, York University, 4700
Keele Street, Toronto, Ontario, Canada, M3J 1P3
| | - Bach Kim Nguyen
- Department of Chemistry and ‡Department of Biology, York University, 4700
Keele Street, Toronto, Ontario, Canada, M3J 1P3
| | - Gang Ye
- Department of Chemistry and ‡Department of Biology, York University, 4700
Keele Street, Toronto, Ontario, Canada, M3J 1P3
| | - Chun Peng
- Department of Chemistry and ‡Department of Biology, York University, 4700
Keele Street, Toronto, Ontario, Canada, M3J 1P3
| | - Jennifer I. L. Chen
- Department of Chemistry and ‡Department of Biology, York University, 4700
Keele Street, Toronto, Ontario, Canada, M3J 1P3
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114
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Calais T, Bourrier D, Bancaud A, Chabal Y, Estève A, Rossi C. DNA Grafting and Arrangement on Oxide Surfaces for Self-Assembly of Al and CuO Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12193-12203. [PMID: 28960992 DOI: 10.1021/acs.langmuir.7b02159] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
DNA-directed assembly of nano-objects as a means to manufacture advanced nanomaterial architectures has been the subject of many studies. However, most applications have dealt with noble metals as there are fundamental difficulties to work with other materials. In this work, we propose a generic and systematic approach for functionalizing and characterizing oxide surfaces with single-stranded DNA oligonucleotides. This protocol is applied to aluminum and copper oxide nanoparticles due to their great interest for the fabrication of highly energetic heterogeneous nanocomposites. The surface densities of streptavidin and biotinylated DNA oligonucleotides are precisely quantified combining atomic absorption spectroscopy with conventional dynamic light scattering and fluorometry and maximized to provide a basis for understanding the grafting mechanism. First, the streptavidin coverage is consistently below 20% of the total surface for both nanoparticles. Second, direct and unspecific grafting of DNA single strands onto Al and CuO nanoparticles largely dominates the overall functionalization process: ∼95% and 90% of all grafted DNA strands are chemisorbed on the CuO and Al nanoparticle surfaces, respectively. Measurements of hybridization efficiency indicate that only ∼5 and ∼10% of single-stranded oligonucleotides grafted onto the CuO and Al surfaces are involved in the hybridization process, corresponding precisely to the streptavidin coverage, as evidenced by the occupancy of 0.9 and 1.2 oligonucleotides per protein. The hybridization efficiency of single-stranded oligonucleotides chemisorbed on CuO and Al without streptavidin coating decreases to only ∼2%, justifying the use of streptavidin despite its poor surface occupancy. Finally, the structure of directly chemisorbed DNA strands onto oxide surfaces is examined and discussed.
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Affiliation(s)
- Théo Calais
- University of Toulouse, LAAS-CNRS,7 Avenue du colonel Roche, F-31077 Toulouse, France
| | - David Bourrier
- University of Toulouse, LAAS-CNRS,7 Avenue du colonel Roche, F-31077 Toulouse, France
| | - Aurélien Bancaud
- University of Toulouse, LAAS-CNRS,7 Avenue du colonel Roche, F-31077 Toulouse, France
| | - Yves Chabal
- Department of Materials Science and Engineering, The University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Alain Estève
- University of Toulouse, LAAS-CNRS,7 Avenue du colonel Roche, F-31077 Toulouse, France
| | - Carole Rossi
- University of Toulouse, LAAS-CNRS,7 Avenue du colonel Roche, F-31077 Toulouse, France
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115
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Neves MAD, Shoara AA, Reinstein O, Abbasi Borhani O, Martin TR, Johnson PE. Optimizing Stem Length To Improve Ligand Selectivity in a Structure-Switching Cocaine-Binding Aptamer. ACS Sens 2017; 2:1539-1545. [PMID: 28929744 DOI: 10.1021/acssensors.7b00619] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Understanding how aptamer structure and function are related is crucial in the design and development of aptamer-based biosensors. We have analyzed a series of cocaine-binding aptamers with different lengths of their stem 1 in order to understand the role that this stem plays in the ligand-induced structure-switching binding mechanism utilized in many of the sensor applications of this aptamer. In the cocaine-binding aptamer, the length of stem 1 controls whether the structure-switching binding mechanism for this aptamer occurs or not. We varied the length of stem 1 from being one to seven base pairs long and found that the structural transition from unfolded to folded in the unbound aptamer is when the aptamer elongates from 3 to 4 base pairs in stem 1. We then used this knowledge to achieve new binding selectivity of this aptamer for quinine over cocaine by using an aptamer with a stem 1 two base pairs long. This selectivity is achieved by means of the greater affinity quinine has for the aptamer compared with cocaine. Quinine provides enough free energy to both fold and bind the 2-base pair-long aptamer while cocaine does not. This tuning of binding selectivity of an aptamer by reducing its stability is likely a general mechanism that could be used to tune aptamer specificity for tighter binding ligands.
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Affiliation(s)
- Miguel A. D. Neves
- Department of Chemistry and
Centre for Research on Biomolecular Interactions, York University, Toronto, Ontario M3J 1P3, Canada
| | - Aron A. Shoara
- Department of Chemistry and
Centre for Research on Biomolecular Interactions, York University, Toronto, Ontario M3J 1P3, Canada
| | - Oren Reinstein
- Department of Chemistry and
Centre for Research on Biomolecular Interactions, York University, Toronto, Ontario M3J 1P3, Canada
| | - Okty Abbasi Borhani
- Department of Chemistry and
Centre for Research on Biomolecular Interactions, York University, Toronto, Ontario M3J 1P3, Canada
| | - Taylor R. Martin
- Department of Chemistry and
Centre for Research on Biomolecular Interactions, York University, Toronto, Ontario M3J 1P3, Canada
| | - Philip E. Johnson
- Department of Chemistry and
Centre for Research on Biomolecular Interactions, York University, Toronto, Ontario M3J 1P3, Canada
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116
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Zhang Z, Oni O, Liu J. New insights into a classic aptamer: binding sites, cooperativity and more sensitive adenosine detection. Nucleic Acids Res 2017; 45:7593-7601. [PMID: 28591844 PMCID: PMC5737652 DOI: 10.1093/nar/gkx517] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 06/01/2017] [Indexed: 11/27/2022] Open
Abstract
The DNA aptamer for adenosine (also for AMP and ATP) is a highly conserved sequence that has recurred in a few selections. It it a widely used model aptamer for biosensor development, and its nuclear magnetic resonance structure shows that each aptamer binds two AMP molecules. In this work, each binding site was individually removed by rational sequence design, while the remaining site still retained a similar binding affinity and specificity as confirmed by isothermal titration calorimetry. The thermodynamic parameters of binding are presented, and its biochemical implications are discussed. The number of binding sites can also be increased, and up to four sites are introduced in a single DNA sequence. Finally, the different sequences are made into fluorescent biosensors based on the structure-switching signaling aptamer design. The one-site aptamer has 3.8-fold higher sensitivity at lower adenosine concentration with a limit of detection of 9.1 μM adenosine, but weaker fluorescence signal at higher adenosine concentrations, consistent with a moderate cooperativity in the original aptamer. This work has offered insights into a classic aptamer for the relationship between the number of binding sites and sensitivity, and a shorter aptamer for improved biosensor design.
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Affiliation(s)
- Zijie Zhang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Olatunji Oni
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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117
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Liu L, Wang X, Yang J, Bai Y. Colorimetric sensing of selenocystine using gold nanoparticles. Anal Biochem 2017; 535:19-24. [DOI: 10.1016/j.ab.2017.07.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 07/18/2017] [Accepted: 07/20/2017] [Indexed: 12/11/2022]
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118
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Wang L, Musile G, McCord BR. An aptamer-based paper microfluidic device for the colorimetric determination of cocaine. Electrophoresis 2017; 39:470-475. [PMID: 28834613 DOI: 10.1002/elps.201700254] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/20/2017] [Accepted: 07/21/2017] [Indexed: 11/11/2022]
Abstract
A method utilizing paper microfluidics coupled with gold nanoparticles and two anticocaine aptamers has been developed to detect seized cocaine samples. The ready-to-use format involves the use of a paper strip that produces a color change resulting from the salt-induced aggregation of gold nanoparticles producing a visible color change indicating the presence of the drug. This format is specific for the detection of cocaine. The visual LOD for the method was 2.5 μg and the camera based LOD was 2.36 μg. The operation of the device is easy and rapid, and does not require extensive training or instrumentation. All of the materials utilized in the device are safe and environmental friendly. This device should prove a useful tool for the screening of forensic samples.
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Affiliation(s)
- Ling Wang
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL, USA
| | - Giacomo Musile
- Department of Diagnostics and Public Health, Unit of Forensic Medicine, University of Verona, Verona, Italy
| | - Bruce R McCord
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL, USA
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119
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DNA aptamer functionalized gold nanostructures for molecular recognition and photothermal inactivation of methicillin-Resistant Staphylococcus aureus. Colloids Surf B Biointerfaces 2017; 159:16-22. [PMID: 28778062 DOI: 10.1016/j.colsurfb.2017.07.056] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 07/06/2017] [Accepted: 07/24/2017] [Indexed: 12/27/2022]
Abstract
In this work, we report the development of DNA aptamer-functionalized gold nanoparticles (Apt@Au NPs) and gold nanorods (Apt@Au NRs) for inactivation of Methicillin-resistant Staphylococcus aureus (MRSA) with targeted photothermal therapy (PTT). Although both Apt@Au NPs and Apt@Au NRs specifically bind to MRSA cells, Apt@Au NPs and Apt@Au NRs inactivated ∼5% and over 95% of the cells,respectively through PTT. This difference in inactivation was based on the relatively high longitudinal absorption of near-infrared (NIR) radiation and strong photothermal conversion capability for the Apt@Au NRs compared to the Apt@Au NPs. The Au NRs served as a nanoplatform for the loading of thiolated aptamer and also provided multivalent effects for increasing binding strength and affinity to MRSA. Our results indicate that the type of aptamer and the degree of multivalent effect(s) are important factors for MRSA inactivation efficiency in PTT. We show that the Apt@Au NRs are a very effective and promising nanosystem for specific cell recognition and in vitro PTT.
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120
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Ma DL, Wu C, Dong ZZ, Tam WS, Wong SW, Yang C, Li G, Leung CH. The Development of G-Quadruplex-Based Assays for the Detection of Small Molecules and Toxic Substances. Chem Asian J 2017; 12:1851-1860. [PMID: 28470784 DOI: 10.1002/asia.201700533] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Indexed: 11/12/2022]
Abstract
G-Quadruplexes can be induced to form guanine-rich DNA sequences by certain small molecules or metal ions. In concert with an appropriate signal transducer, such as a fluorescent dye or a phosphorescent metal complex, the ligand-recognition event can be transduced into a luminescent response. This focus review aims to highlight recent examples of aptamer-based and metal-mediated G-quadruplex assays for the detection of small molecules and toxic substances in the last three years. We discuss the mechanisms and features of the different assays and present an outlook and a perspective for the future of this field.
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Affiliation(s)
- Dik-Lung Ma
- Department of Chemistry, Faculty of Science, Hong Kong Baptist University
| | - Chun Wu
- Department of Chemistry, Faculty of Science, Hong Kong Baptist University
| | - Zhen-Zhen Dong
- Department of Chemistry, Faculty of Science, Hong Kong Baptist University
| | - Wing-Sze Tam
- Department of Chemistry, Faculty of Science, Hong Kong Baptist University
| | - Sze-Wan Wong
- Department of Chemistry, Faculty of Science, Hong Kong Baptist University
| | - Chao Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau
| | - Guodong Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau
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121
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Affiliation(s)
- Wenhu Zhou
- Xiangya
School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Runjhun Saran
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Juewen Liu
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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122
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Liu Y, Chen J, Du M, Wang X, Ji X, He Z. The preparation of dual-functional hybrid nanoflower and its application in the ultrasensitive detection of disease-related biomarker. Biosens Bioelectron 2017; 92:68-73. [DOI: 10.1016/j.bios.2017.02.004] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 01/31/2017] [Accepted: 02/02/2017] [Indexed: 12/29/2022]
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123
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Meng Y, Jiang J, Liu M. Self-assembled nanohelix from a bolaamphiphilic diacetylene via hydrogelation and selective responsiveness towards amino acids and nucleobases. NANOSCALE 2017; 9:7199-7206. [PMID: 28513697 DOI: 10.1039/c7nr02126g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A bolaamphiphile with diacteylene mesogen unit and l-glutamic acid as the terminal group was newly designed and its self-assembly was investigated. The compound formed hydrogels with water upon heating and cooling. The as-formed gel could be switched to a dispersion upon mechanical shaking. Both the gel and the water dispersion undergo polymerization upon UV irradiation. However, the gel turned to blue and then purple red color, while the dispersion turned red directly. Using AFM and SEM observations, it was found that nanohelix was formed in the as-prepared gel and polymerized blue gels, while nanobelt was formed from the water dispersion. The blue nanohelix was stable but showed selective response to certain amino acids and nucleobases. It was found that the blue gel underwent shrinkage when reacting with charged amino acids such as Glu, Asp, Lys, Arg and His. In the shrunk gel, the solution phase further turned pink in the case of His and Arg. In addition, the blue gel showed also shrinkage and color change when reacting with cytosine.
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Affiliation(s)
- Yan Meng
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface, Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun Beiyijie, Beijing 100190, P. R. China.
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124
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Xu X, Wei H, Jiang W. A target triggered proximity combination-based fluorescence sensing strategy for adenosine detection. Analyst 2017; 142:2247-2252. [PMID: 28536711 DOI: 10.1039/c7an00654c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adenosine is a potent physiological and pharmacological regulator, and its abnormal level is closely related to disease development. The sensitive and specific detection of adenosine is crucial for health evaluation and disease diagnosis. In this work, a target triggered proximity combination-based fluorescence sensing strategy is developed for the sensitive and specific detection of adenosine. A difunctional probe showing target recognition and signal amplification is designed, by integration of DNA linker-connected split aptamer fragments with a fragment-elongated polymerase/nicking template. The presence of adenosine would glue the split aptamers, which triggers the two distal aptamer fragments to combine with each other into proximity. The approaching aptamer fragment ends then initiate the strand displacement amplification (SDA) reaction, generating numerous DNA primers. The DNA primers further hybridize with a padlock probe and initiate the rolling circle amplification (RCA) reaction, producing numerous G-quadruplex sequences. The G-quadruplex sequences finally bind with Thioflavin T to obtain enhanced fluorescence signals. The method exhibits a linear correlation within the adenosine concentration range from 5.0 × 10-7 M to 2.0 × 10-5 M (R = 0.999) with a detection limit of 8.4 × 10-8 M, and a good selectivity to distinguish adenosine from its analogues. The recoveries of adenosine in human serum are from 91% to 94%, demonstrating that the system works well in biological fluids. The proposed sensing strategy is anticipated to hold promise in biochemical research, clinical diagnosis and disease treatment.
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Affiliation(s)
- Xiaowen Xu
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 250100 Jinan, P.R. China.
| | - Haiping Wei
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 250100 Jinan, P.R. China.
| | - Wei Jiang
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 250100 Jinan, P.R. China.
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125
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A 3D printed smartphone optosensing platform for point-of-need food safety inspection. Anal Chim Acta 2017; 966:81-89. [DOI: 10.1016/j.aca.2017.02.022] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 02/01/2017] [Accepted: 02/13/2017] [Indexed: 01/01/2023]
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126
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Liu Y, Zhao Q. Direct fluorescence anisotropy assay for cocaine using tetramethylrhodamine-labeled aptamer. Anal Bioanal Chem 2017; 409:3993-4000. [PMID: 28429063 DOI: 10.1007/s00216-017-0349-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 03/04/2017] [Accepted: 03/28/2017] [Indexed: 01/15/2023]
Abstract
Development of simple, sensitive, and rapid method for cocaine detection is important in medicine and drug abuse monitoring. Taking advantage of fluorescence anisotropy and aptamer, this study reports a direct fluorescence anisotropy (FA) assay for cocaine by employing an aptamer probe with tetramethylrhodamine (TMR) labeled on a specific position. The binding of cocaine and the aptamer causes a structure change of the TMR-labeled aptamer, leading to changes of the interaction between labeled TMR and adjacent G bases in aptamer sequence, so FA of TMR varies with increasing of cocaine. After screening different labeling positions of the aptamer, including thymine (T) bases and terminals of the aptamer, we obtained a favorable aptamer probe with TMR labeled on the 25th base T in the sequence, which exhibited sensitive and significant FA-decreasing responses upon cocaine. Under optimized assay conditions, this TMR-labeled aptamer allowed for direct FA detection of cocaine as low as 5 μM. The maximum FA change reached about 0.086. This FA method also enabled the detection of cocaine spiked in diluted serum and urine samples, showing potential for applications. Graphical Abstract The binding of cocaine to the TMR-labeled aptamer causes conformation change and alteration of the intramolecular interaction between TMR and bases of aptamer, leading to variance of fluorescence anisotropy (FA) of TMR, so direct FA analyis of cocaine is achieved.
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Affiliation(s)
- Yingxiong Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, Shanxi, 030006, China
| | - Qiang Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
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127
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Zhang S, Kim S, Tsukruk VV. Ligand-Exchange Dynamics on Gold Nanocrystals: Direct Monitoring of Nanoscale Polyvinylpyrrolidone-Thiol Domain Surface Morphology. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3576-3587. [PMID: 28335595 DOI: 10.1021/acs.langmuir.6b04210] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report direct high-resolution monitoring of an evolving mixed nanodomain surface morphology during thiol adsorption on polyvinylpyrrolidone (PVP)-stabilized single crystal gold nanocrystals. The thiol adsorption and replacement dynamics are much more complex than a simple complete substitution of the initial polymer ligand. We observed that during ligand exchange with linear thiol, the nanocrystal surface evolved from an initial 1 nm uniform PVP coating into a remarkably stable network of globular PVP domains 20-100 nm in size and ∼4 nm in height surrounded by thiol self-assembled monolayers. The final stability of such a mixed thiol-PVP surface morphology can possibly be attributed to the interfacial energy reduction from partially solvophilic surfaces and the entropic gain from mixed ligand surface layers. The ligand-exchange dynamics and the unusual equilibrium morphology revealed here provide important insights into both displacement dynamics of surface-bound molecules and the nanoscale peculiarities of surface functionalization of colloidal metal substrates.
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Affiliation(s)
- Shuaidi Zhang
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States
| | - Sunghan Kim
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States
| | - Vladimir V Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States
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128
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Li F, Lu J, Kong X, Hyeon T, Ling D. Dynamic Nanoparticle Assemblies for Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605897. [PMID: 28224677 DOI: 10.1002/adma.201605897] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/09/2016] [Indexed: 05/23/2023]
Abstract
Designed synthesis and assembly of nanoparticles assisted by their surface ligands can create "smart" materials with programmed responses to external stimuli for biomedical applications. These assemblies can be designed to respond either exogenously (for example, to magnetic field, temperature, ultrasound, light, or electric pulses) or endogenously (to pH, enzymatic activity, or redox gradients) and play an increasingly important role in a diverse range of biomedical applications, such as biosensors, drug delivery, molecular imaging, and novel theranostic systems. In this review, the recent advances and challenges in the development of stimuli-responsive nanoparticle assemblies are summarized; in particular, the application-driven design of surface ligands for stimuli-responsive nanoparticle assemblies that are capable of sensing small changes in the disease microenvironment, which induce the related changes in their physico-chemical properties, is described. Finally, possible future research directions and problems that have to be addressed are briefly discussed.
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Affiliation(s)
- Fangyuan Li
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, 310027, China
| | - Jingxiong Lu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xueqian Kong
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Korea
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Korea
| | - Daishun Ling
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, 310027, China
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129
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Lu N, Zhang M, Ding L, Zheng J, Zeng C, Wen Y, Liu G, Aldalbahi A, Shi J, Song S, Zuo X, Wang L. Yolk-shell nanostructured Fe 3O 4@C magnetic nanoparticles with enhanced peroxidase-like activity for label-free colorimetric detection of H 2O 2 and glucose. NANOSCALE 2017; 9:4508-4515. [PMID: 28317969 DOI: 10.1039/c7nr00819h] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Herein, we have developed a simple and facile method to synthesize yolk-shell nanostructured Fe3O4@C nanoparticles (NPs) as a multifunctional biosensing platform for the label-free colorimetric detection of H2O2 and glucose. It was demonstrated that Fe3O4@C yolk-shell nanostructures (YSNs) retained the magnetic properties that can be used for separation and concentration. Also importantly, the Fe3O4@C YSNs exhibited an intrinsic peroxidase-like activity that could quickly catalyze the enzyme substrate in the presence of H2O2 and produce a blue color. Compared to other similar ferric oxide-based NPs with different structures, Fe3O4@C YSNs exhibited greatly enhanced catalytic activities due to their unique structural features. Moreover, steady-state kinetics indicated the catalytic behaviors in agreement with the classic Michaelis-Menten models. Taking advantage of the high catalytic activity, Fe3O4@C YSNs were employed as novel peroxidase mimetics for label-free, rapid, sensitive, and specific colorimetric sensing of H2O2 and glucose, suggesting that Fe3O4@C YSNs have the potential for construction of portable sensors in the application of point-of-care (POC) diagnosis and on-site tests.
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Affiliation(s)
- Na Lu
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Min Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Lei Ding
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Jing Zheng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Caixia Zeng
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Yanli Wen
- Laboratory of Biometrology, Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China
| | - Gang Liu
- Laboratory of Biometrology, Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China
| | - Ali Aldalbahi
- Chemistry Department, King Saud University, Riyadh 11451, Saudi Arabia
| | - Jiye Shi
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
| | - Shiping Song
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
| | - Xiaolei Zuo
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
| | - Lihua Wang
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
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130
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Goux E, Dausse E, Guieu V, Azéma L, Durand G, Henry M, Choisnard L, Toulmé JJ, Ravelet C, Peyrin E. A colorimetric nanosensor based on a selective target-responsive aptamer kissing complex. NANOSCALE 2017; 9:4048-4052. [PMID: 28276559 DOI: 10.1039/c7nr00612h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Herein, we report a novel approach for the design of a colorimetric aptasensor based on functionalized gold nanoparticle probes. This approach relies on the conjugation of nanoparticles by two functional DNA and RNA hairpins that engage specific kissing (loop-loop) interactions in response to the addition of a small analyte ligand, leading to particle aggregation and then red-to-purple colour change of the colloidal solution.
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Affiliation(s)
- E Goux
- University Grenoble Alpes, DPM CNRS UMR 5063, F-38041 Grenoble, France.
| | - E Dausse
- Laboratoire ARNA, University of Bordeaux, Inserm U1212, CNRS UMR5320, F-33076 Bordeaux, France
| | - V Guieu
- University Grenoble Alpes, DPM CNRS UMR 5063, F-38041 Grenoble, France.
| | - L Azéma
- Laboratoire ARNA, University of Bordeaux, Inserm U1212, CNRS UMR5320, F-33076 Bordeaux, France
| | - G Durand
- Laboratoire ARNA, University of Bordeaux, Inserm U1212, CNRS UMR5320, F-33076 Bordeaux, France
| | - M Henry
- University Grenoble Alpes, DPM CNRS UMR 5063, F-38041 Grenoble, France.
| | - L Choisnard
- University Grenoble Alpes, DPM CNRS UMR 5063, F-38041 Grenoble, France.
| | - J-J Toulmé
- Laboratoire ARNA, University of Bordeaux, Inserm U1212, CNRS UMR5320, F-33076 Bordeaux, France
| | - C Ravelet
- University Grenoble Alpes, DPM CNRS UMR 5063, F-38041 Grenoble, France.
| | - E Peyrin
- University Grenoble Alpes, DPM CNRS UMR 5063, F-38041 Grenoble, France.
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131
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Liu Q, Peng YJ, Xu JC, Ma C, Li L, Mao CJ, Zhu JJ. Label-Free Electrochemiluminescence Aptasensor for Highly Sensitive Detection of Acetylcholinesterase Based on Au-Nanoparticle-Functionalized g-C3
N4
Nanohybrid. ChemElectroChem 2017. [DOI: 10.1002/celc.201700035] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qiao Liu
- School of Chemistry & Chemical Engineering; Anhui University; Hefei 230039 P. R. China
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering; Nanjing University; Nanjing 210093 P. R. China
| | - Yu-Jiao Peng
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering; Nanjing University; Nanjing 210093 P. R. China
| | - Jin-Chun Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering; Nanjing University; Nanjing 210093 P. R. China
| | - Cheng Ma
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering; Nanjing University; Nanjing 210093 P. R. China
| | - Lingling Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering; Nanjing University; Nanjing 210093 P. R. China
| | - Chang-Jie Mao
- School of Chemistry & Chemical Engineering; Anhui University; Hefei 230039 P. R. China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering; Nanjing University; Nanjing 210093 P. R. China
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132
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Munzar JD, Ng A, Corrado M, Juncker D. Complementary oligonucleotides regulate induced fit ligand binding in duplexed aptamers. Chem Sci 2017; 8:2251-2256. [PMID: 28507681 PMCID: PMC5408566 DOI: 10.1039/c6sc03993f] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/07/2016] [Indexed: 12/20/2022] Open
Abstract
Duplexed aptamers (DAs) are engineered by hybridizing an aptamer-complementary element (ACE, e.g. a DNA oligonucleotide) to an aptamer; to date, ACEs have been presumed to sequester the aptamer into a non-binding duplex state, in line with a conformational selection-based model of ligand binding. Here, we uncover that DAs can actively bind a ligand from the duplex state through an ACE-regulated induced fit mechanism. Using a widely-studied ATP DNA aptamer and a solution-based equilibrium assay, DAs were found to exhibit affinities up to 1 000 000-fold higher than predicted by conformational selection alone, with different ACEs regulating the level of induced fit binding, as well as the cooperative allostery of the DA (Hill slope of 1.8 to 0.7). To validate these unexpected findings, we developed a non-equilibrium surface-based assay that only signals induced fit binding, and corroborated the results from the solution-based assay. Our findings indicate that ACEs regulate ATP DA ligand binding dynamics, opening new avenues for the study and design of ligand-responsive nucleic acids.
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Affiliation(s)
- Jeffrey D Munzar
- McGill University and Genome Quebec Innovation Centre , 740 Dr. Penfield Avenue , Montreal , Quebec H3A 0G1 , Canada .
- Department of Biomedical Engineering , McGill University , 3775 Rue University , Montreal , Quebec H3A 2B4 , Canada
| | - Andy Ng
- McGill University and Genome Quebec Innovation Centre , 740 Dr. Penfield Avenue , Montreal , Quebec H3A 0G1 , Canada .
- Department of Biomedical Engineering , McGill University , 3775 Rue University , Montreal , Quebec H3A 2B4 , Canada
| | - Mario Corrado
- McGill University and Genome Quebec Innovation Centre , 740 Dr. Penfield Avenue , Montreal , Quebec H3A 0G1 , Canada .
- Department of Biomedical Engineering , McGill University , 3775 Rue University , Montreal , Quebec H3A 2B4 , Canada
| | - David Juncker
- McGill University and Genome Quebec Innovation Centre , 740 Dr. Penfield Avenue , Montreal , Quebec H3A 0G1 , Canada .
- Department of Biomedical Engineering , McGill University , 3775 Rue University , Montreal , Quebec H3A 2B4 , Canada
- Department of Neurology and Neurosurgery , McGill University , 3801 Rue University , Montreal , Quebec H3A 2B4 , Canada
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133
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Rauf S, Zhang L, Ali A, Liu Y, Li J. Label-Free Nanopore Biosensor for Rapid and Highly Sensitive Cocaine Detection in Complex Biological Fluids. ACS Sens 2017; 2:227-234. [PMID: 28723133 DOI: 10.1021/acssensors.6b00627] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Detection of very low amounts of illicit drugs such as cocaine in clinical fluids like serum continues to be important for many areas in the fight against drug trafficking. Herein, we constructed a label-free nanopore biosensor for rapid and highly sensitive detection of cocaine in human serum and saliva samples based on target-induced strand release strategy. In this bioassay, an aptamer for cocaine was prehybridized with a short complementary DNA. Owing to cocaine specific binding with aptamer, the short DNA strand was displaced from aptamer and translocation of this output DNA through α-hemolysin nanopore generated distinct spike-like current blockages. When plotted in double-logarithmic scale, a linear relationship between target cocaine concentration and output DNA event frequency was obtained in a wide concentration range from 50 nM to 100 μM of cocaine, with the limit of detection down to 50 nM. In addition, this aptamer-based sensor method was successfully applied for cocaine detection in complex biological fluids like human saliva and serum samples with great selectivity. Simple preparation, low cost, rapid, label-free, and real sample detection are the motivating factors for practical application of the proposed biosensor.
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Affiliation(s)
- Sana Rauf
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Beijing Key Laboratory for Analytical Methods and Instrumentation, Tsinghua University, Beijing 100084, China
| | - Ling Zhang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Beijing Key Laboratory for Analytical Methods and Instrumentation, Tsinghua University, Beijing 100084, China
| | - Asghar Ali
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Beijing Key Laboratory for Analytical Methods and Instrumentation, Tsinghua University, Beijing 100084, China
| | - Yang Liu
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Beijing Key Laboratory for Analytical Methods and Instrumentation, Tsinghua University, Beijing 100084, China
| | - Jinghong Li
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Beijing Key Laboratory for Analytical Methods and Instrumentation, Tsinghua University, Beijing 100084, China
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134
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Abstract
Enzyme-linked immunosorbent assay (ELISA) is a well-known strategy for biomarker detection with a color change, which can be seen by the naked eyes. However, the moderate sensitivity of conventional ELISA limits its applications in many cases where the concentrations of biomarker are very low, such as cancer diagnosis. Here we describe an ultrasensitive colorimetric assay based on acetylcholinesterase (AChE)-catalyzed hydrolysis reaction, whose products trigger the aggregation of gold nanoparticles (AuNPs), causing a distinct color change of the solution from red to purple. This enhanced colorimetric immunoassay offers extremely high sensitivity and specificity. In this study, we employed enterovirus 71 (EV71), the major cause of hand, foot, and mouth disease (HFMD), as a model to evaluate the analytical performance of the plasmonic immunoassay.
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135
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Tanner EEL, Sokolov SV, Young NP, Compton RG. DNA capping agent control of electron transfer from silver nanoparticles. Phys Chem Chem Phys 2017; 19:9733-9738. [DOI: 10.1039/c7cp01721a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
DNA capping of silver nanoparticles gates electron transfer from the nanoparticle and is controlled by the potentials at which the electroactive base pairs undergo oxidation.
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Affiliation(s)
- Eden E. L. Tanner
- University of Oxford
- Department of Chemistry
- Physical and Theoretical Chemistry Laboratory
- Oxford University
- Oxford
| | - Stanislav V. Sokolov
- University of Oxford
- Department of Chemistry
- Physical and Theoretical Chemistry Laboratory
- Oxford University
- Oxford
| | | | - Richard G. Compton
- University of Oxford
- Department of Chemistry
- Physical and Theoretical Chemistry Laboratory
- Oxford University
- Oxford
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136
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Wang R, Bowling I, Liu W. Cost effective surface functionalization of gold nanoparticles with a mixed DNA and PEG monolayer for nanotechnology applications. RSC Adv 2017. [DOI: 10.1039/c6ra26791b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
We report a cost effective and generally applicable method for co-functionalization of gold nanoparticles with a mixed DNA and PEG polymer layer.
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Affiliation(s)
- Risheng Wang
- Department of Chemistry
- Missouri University of Science and Technology
- Rolla
- USA
| | - Isabella Bowling
- Department of Chemistry
- Missouri University of Science and Technology
- Rolla
- USA
| | - Wenyan Liu
- Environmental Research Center
- Missouri University of Science and Technology
- Rolla
- USA
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137
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Mazumdar D, Lan T, Lu Y. "Dipstick" Colorimetric Detection of Metal Ions Based on Immobilization of DNAzyme and Gold Nanoparticles onto a Lateral Flow Device. Methods Mol Biol 2017; 1571:389-406. [PMID: 28281269 DOI: 10.1007/978-1-4939-6848-0_24] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Real-time, on-site detection and quantification of different trace analytes is a challenge that requires both searching a general class of molecules to recognize a broad range of contaminants and translating this recognition to easily detectable signals. Functional nucleic acids, which include DNAzymes (DNA with catalytic activity) and aptamers (nucleic acids that bind an analyte), are ideal candidates for the target recognition. These nucleic acids can be selected by a combinatorial biology method called in vitro selection to interact with a particular analyte with high specificity and sensitivity. Furthermore, they can be incorporated into sensors by attaching signaling molecules. Due to the high extinction coefficients and distance-dependent optical properties, metallic nanoparticles such as the commonly used gold nanoparticles have been shown to be very attractive in converting analyte-specific functional DNA into colorimetric sensors. DNAzyme directed assembly of gold nanoparticles has been used to make colorimetric sensors for metal ions such as lead, uranium, and copper. To make the operation even easier and less vulnerable to operator's errors, dipstick tests have been constructed. Here, we describe protocols for the preparation of DNAzyme-linked gold nanoparticles (AuNP) that are then immobilized on to lateral flow devices to make easy-to-use dipstick tests for metal ions.
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Affiliation(s)
| | - Tian Lan
- Glucosentient Inc., 60 Hazelwood Drive, Champaign, IL, 61820, USA
| | - Yi Lu
- Department of Chemistry, University of Illinois at Urbana-Champaign, A 322 Chemical and Life Sciences Building, 600 S. Mathews Ave., Urbana, IL, 61801, USA.
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138
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Zheng XT, Xu HV, Tan YN. Bioinspired Design and Engineering of Functional Nanostructured Materials for Biomedical Applications. ACS SYMPOSIUM SERIES 2017. [DOI: 10.1021/bk-2017-1253.ch007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Xin Ting Zheng
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634
- Division of Chemical and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore 117543
| | - Hesheng Victor Xu
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634
- Division of Chemical and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore 117543
| | - Yen Nee Tan
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634
- Division of Chemical and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore 117543
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139
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Baldock BL, Hutchison JE. UV–Visible Spectroscopy-Based Quantification of Unlabeled DNA Bound to Gold Nanoparticles. Anal Chem 2016; 88:12072-12080. [DOI: 10.1021/acs.analchem.6b02640] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Brandi L. Baldock
- Department of Chemistry and
Biochemistry, University of Oregon, 1253 University of Oregon, Eugene, Oregon 97403-1253, United States
| | - James E. Hutchison
- Department of Chemistry and
Biochemistry, University of Oregon, 1253 University of Oregon, Eugene, Oregon 97403-1253, United States
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140
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Wang Y, Zhu Y, Binyam A, Liu M, Wu Y, Li F. Discovering the enzyme mimetic activity of metal-organic framework (MOF) for label-free and colorimetric sensing of biomolecules. Biosens Bioelectron 2016; 86:432-438. [DOI: 10.1016/j.bios.2016.06.036] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/12/2016] [Accepted: 06/13/2016] [Indexed: 10/21/2022]
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141
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Adegoke O, Park EY. Gold Nanoparticle-Quantum Dot Fluorescent Nanohybrid: Application for Localized Surface Plasmon Resonance-induced Molecular Beacon Ultrasensitive DNA Detection. NANOSCALE RESEARCH LETTERS 2016; 11:523. [PMID: 27888497 PMCID: PMC5124020 DOI: 10.1186/s11671-016-1748-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 11/21/2016] [Indexed: 06/06/2023]
Abstract
In biosensor design, localized surface plasmon resonance (LSPR)-induced signal from gold nanoparticle (AuNP)-conjugated reporter can produce highly sensitive nanohybrid systems. In order to retain the physicochemical properties of AuNPs upon conjugation, high colloidal stability in aqueous solution is needed. In this work, the colloidal stability with respect to the zeta potential (ZP) of four negatively charged thiol-functionalized AuNPs, thioglycolic (TGA)-AuNPs, 3-mercaptopropionic acid (MPA)-AuNPs, L-cysteine-AuNPs and L-glutathione (GSH)-AuNPs, and a cationic cyteamine-capped AuNPs was studied at various pHs, ionic strength, and NP concentration. A strong dependence of the ZP charge on the nanoparticle (NP) concentration was observed. High colloidal stability was exhibited between pH 3 and 9 for the negatively charged AuNPs and between pH 3 and 7 for the cationic AuNPs. With respect to the ionic strength, high colloidal stability was exhibited at ≤104 μM for TGA-AuNPs, L-cysteine-AuNPs, and GSH-AuNPs, whereas ≤103 μM is recommended for MPA-AuNPs. For the cationic AuNPs, very low ionic strength of ≤10 μM is recommended due to deprotonation at higher concentration. GSH-AuNPs were thereafter bonded to SiO2-functionalized alloyed CdZnSeS/ZnSe1.0S1.3 quantum dots (SiO2-Qdots) to form a plasmon-enhanced AuNP-SiO2-Qdots fluorescent nanohybrid. The AuNP-SiO2-Qdots conjugate was afterward conjugated to a molecular beacon (MB), thus forming an ultrasensitive LSPR-induced SiO2-Qdots-MB biosensor probe that detected a perfect nucleotide DNA sequence at a concentration as low as 10 fg/mL. The limit of detection was ~11 fg/mL (1.4 fM) while the biosensor probe efficiently distinguished between single-base mismatch and noncomplementary sequence target.
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Affiliation(s)
- 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
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142
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Xu H, Liang S, Zhu X, Wu X, Dong Y, Wu H, Zhang W, Chi Y. Enhanced electrogenerated chemiluminescence behavior of C 3N 4 QDs@ C 3N 4 nanosheet and its signal-on aptasensing for platelet derived growth factor. Biosens Bioelectron 2016; 92:695-701. [PMID: 27829561 DOI: 10.1016/j.bios.2016.10.026] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 10/10/2016] [Accepted: 10/13/2016] [Indexed: 01/27/2023]
Abstract
A novel g-C3N4 nanosheets embedded with C3N4 QDs nanocomposites (QD@CNNS) was prepared by simple oxidation using hydrogen peroxide and UV light irradiation. This nanocomposite exhibits more stable and stronger electrochemiluminescent (ECL) behavior compared with CNNS. Coupling this nanocomposite with Fc-labeled aptamer, a signal-on aptasensor for platelet derived growth factor BB (PDGF-BB) is fabricated. Initially, the Fc-labeled aptamer binds onto QD@CNNS via π-π conjugation and electrostatic interaction, quenching ECL emission from QD@CNNS. The introduction of target efficiently recovers the ECL signal by the formation of PDGF-BB/aptamer complex. The ECL intensity is proportion to the concentration of PDGF-BB in the range of 0.02-80nM with a detection limit of 0.013nM. This work demonstrates a simple synthesis method to obtain QD@CNNS with excellent ECL behavior, and opens up the application of g-C3N4 nanocomposite in signal-on aptasensing.
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Affiliation(s)
- Huifeng Xu
- MOE Key Laboratory of Analysis and Detection for Food Safety, State Key Laboratory of Photo catalysis on Energy and Environment, and College of Chemistry, Fuzhou University, Fujian 350108, PR China; Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, PR China
| | - Shijing Liang
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian 350108, PR China
| | - Xi Zhu
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, PR China
| | - Xiuqin Wu
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian 350108, PR China
| | - Yongqiang Dong
- MOE Key Laboratory of Analysis and Detection for Food Safety, State Key Laboratory of Photo catalysis on Energy and Environment, and College of Chemistry, Fuzhou University, Fujian 350108, PR China
| | - Haishan Wu
- MOE Key Laboratory of Analysis and Detection for Food Safety, State Key Laboratory of Photo catalysis on Energy and Environment, and College of Chemistry, Fuzhou University, Fujian 350108, PR China
| | - Wenxia Zhang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, PR China
| | - Yuwu Chi
- MOE Key Laboratory of Analysis and Detection for Food Safety, State Key Laboratory of Photo catalysis on Energy and Environment, and College of Chemistry, Fuzhou University, Fujian 350108, PR China.
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143
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Wang H, Peng P, Liu S, Li T. Thioflavin T behaves as an efficient fluorescent ligand for label-free ATP aptasensor. Anal Bioanal Chem 2016; 408:7927-7934. [PMID: 27682839 DOI: 10.1007/s00216-016-9926-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 08/29/2016] [Accepted: 09/01/2016] [Indexed: 12/22/2022]
Abstract
Here, we for the first time demonstrated thioflavin T (ThT) as an efficient fluorescent ligand for 27-mer ATP-binding aptamer (ABA27), providing a novel signal readout mode for label-free selective ATP detection. ABA27 can promote the fluorescence emission of ThT with an unprecedentedly high efficiency, attributed to the specific structure of ABA27 rather than the G-tracts. Polyacrylamide gel electrophoresis, fluorescence spectroscopy, and fluorometric titration reveal that ThT interacts with ABA27 with a lower binding affinity (Kd ~89 μM) than ATP, which allows ATP to easily compete with ThT for the DNA binder. In the presence of ThT, adding ATP induces ABA27 to undergo a structural change, thereby not favoring the binding to ThT, verified by circular dichroism and UV-Vis absorption spectroscopy. As a result, the fluorescence intensity of ThT decreases dramatically, enabling the sensitive detection of ATP with high selectivity over other analogs. Such a sensing strategy may make ThT able to serve as a facile signal reporter for DNA nanomechanical devices fueled with ATP. Graphical Abstract The principle of the displacement of ThT by ATP.
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Affiliation(s)
- Huihui Wang
- Department of Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Jinzhai Road 96, Hefei, Anhui, 230026, China
| | - Pai Peng
- Department of Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Jinzhai Road 96, Hefei, Anhui, 230026, China
| | - Shuangna Liu
- Department of Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Jinzhai Road 96, Hefei, Anhui, 230026, China
| | - Tao Li
- Department of Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Jinzhai Road 96, Hefei, Anhui, 230026, China.
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144
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Li W, Jiang W, Wang L. Self-locked aptamer probe mediated cascade amplification strategy for highly sensitive and selective detection of protein and small molecule. Anal Chim Acta 2016; 940:1-7. [PMID: 27662754 DOI: 10.1016/j.aca.2016.08.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 07/28/2016] [Accepted: 08/09/2016] [Indexed: 10/21/2022]
Abstract
In this work, a novel self-locked aptamer probe mediated cascade amplification strategy has been constructed for highly sensitive and specific detection of protein. First, the self-locked aptamer probe was designed with three functions: one was specific molecular recognition attributed to the aptamer sequence, the second was signal transduction owing to the transduction sequence, and the third was self-locking through the hybridization of the transduction sequence and part of the aptamer sequence. Then, the aptamer sequence specific recognized the target and folded into a three-way helix junction, leading to the release of the transduction sequence. Next, the 3'-end of this three-way junction acted as primer to trigger the strand displacement amplification (SDA), yielding a large amount of primers. Finally, the primers initiated the dual-exponential rolling circle amplification (DE-RCA) and generated numerous G-quadruples sequences. By inserting the fluorescent dye N-methyl mesoporphyrin IX (NMM), enhanced fluorescence signal was achieved. In this strategy, the self-locked aptamer probe was more stable to reduce the interference signals generated by the uncontrollable folding in unbounded state. Through the cascade amplification of SDA and DE-RCA, the sensitivity was further improved with a detection limit of 3.8 × 10(-16) mol/L for protein detection. Furthermore, by changing the aptamer sequence of the probe, sensitive and selective detection of adenosine has been also achieved, suggesting that the proposed strategy has good versatility and can be widely used in sensitive and selective detection of biomolecules.
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Affiliation(s)
- Wei Li
- Key Laboratory of Natural Products Chemical Biology, Ministry of Education, School of Pharmacy, Shandong University, Jinan, 250012, PR China
| | - Wei Jiang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China
| | - Lei Wang
- Key Laboratory of Natural Products Chemical Biology, Ministry of Education, School of Pharmacy, Shandong University, Jinan, 250012, PR China.
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145
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Oroval M, Coronado-Puchau M, Langer J, Sanz-Ortiz MN, Ribes Á, Aznar E, Coll C, Marcos MD, Sancenón F, Liz-Marzán LM, Martínez-Máñez R. Surface Enhanced Raman Scattering and Gated Materials for Sensing Applications: The Ultrasensitive Detection of Mycoplasma and Cocaine. Chemistry 2016; 22:13488-95. [PMID: 27505065 DOI: 10.1002/chem.201602457] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Indexed: 01/03/2023]
Abstract
We present herein a novel combination of gated mesoporous silica nanoparticles (MSNs) and surface-enhanced Raman scattering (SERS) for sensing applications. As a proof-of-concept, we show the design of a system comprising MSNs loaded with crystal violet (CV), a molecule with high Raman cross section acting as SERS reporter, and capped with either a suitable DNA sequence for the detection of Mycoplasma genomic DNA or with an aptamer that selectively coordinates cocaine. In both cases the presence of the corresponding target analyte in solution (i.e., genomic DNA or cocaine) resulted in the release of CV. CV delivery was detected by SERS upon adsorption on gold nanotriangles (AuNTs), which display an efficient electromagnetic field enhancement and a high colloidal stability. By using this novel procedure a limit of detection of at least 30 copies DNA per μL was determined for the detection of Mycoplasma genomic DNA, whereas cocaine was detected at concentrations as low as 10 nm.
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Affiliation(s)
- Mar Oroval
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Unidad Mixta Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022, Valencia, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Marc Coronado-Puchau
- Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009, Donostia-San Sebastián, Spain
| | - Judith Langer
- Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009, Donostia-San Sebastián, Spain
| | - Marta Norah Sanz-Ortiz
- Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009, Donostia-San Sebastián, Spain
| | - Ángela Ribes
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Unidad Mixta Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022, Valencia, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Elena Aznar
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Unidad Mixta Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022, Valencia, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Carmen Coll
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Unidad Mixta Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022, Valencia, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - María Dolores Marcos
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Unidad Mixta Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022, Valencia, Spain.,Departmento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022, València, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Félix Sancenón
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Unidad Mixta Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022, Valencia, Spain.,Departmento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022, València, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Luis M Liz-Marzán
- Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009, Donostia-San Sebastián, Spain. .,Ikerbasque, Basque Foundation for Science, 48013, Bilbao, Spain. .,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
| | - Ramón Martínez-Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Unidad Mixta Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022, Valencia, Spain. .,Departmento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022, València, Spain. .,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
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146
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Perez-Gonzalez C, Lafontaine DA, Penedo JC. Fluorescence-Based Strategies to Investigate the Structure and Dynamics of Aptamer-Ligand Complexes. Front Chem 2016; 4:33. [PMID: 27536656 PMCID: PMC4971091 DOI: 10.3389/fchem.2016.00033] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 07/11/2016] [Indexed: 12/11/2022] Open
Abstract
In addition to the helical nature of double-stranded DNA and RNA, single-stranded oligonucleotides can arrange themselves into tridimensional structures containing loops, bulges, internal hairpins and many other motifs. This ability has been used for more than two decades to generate oligonucleotide sequences, so-called aptamers, that can recognize certain metabolites with high affinity and specificity. More recently, this library of artificially-generated nucleic acid aptamers has been expanded by the discovery that naturally occurring RNA sequences control bacterial gene expression in response to cellular concentration of a given metabolite. The application of fluorescence methods has been pivotal to characterize in detail the structure and dynamics of these aptamer-ligand complexes in solution. This is mostly due to the intrinsic high sensitivity of fluorescence methods and also to significant improvements in solid-phase synthesis, post-synthetic labeling strategies and optical instrumentation that took place during the last decade. In this work, we provide an overview of the most widely employed fluorescence methods to investigate aptamer structure and function by describing the use of aptamers labeled with a single dye in fluorescence quenching and anisotropy assays. The use of 2-aminopurine as a fluorescent analog of adenine to monitor local changes in structure and fluorescence resonance energy transfer (FRET) to follow long-range conformational changes is also covered in detail. The last part of the review is dedicated to the application of fluorescence techniques based on single-molecule microscopy, a technique that has revolutionized our understanding of nucleic acid structure and dynamics. We finally describe the advantages of monitoring ligand-binding and conformational changes, one molecule at a time, to decipher the complexity of regulatory aptamers and summarize the emerging folding and ligand-binding models arising from the application of these single-molecule FRET microscopy techniques.
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Affiliation(s)
- Cibran Perez-Gonzalez
- Laboratory for Biophysics and Biomolecular Dynamics, SUPA School of Physics and Astronomy, University of St. AndrewsSt Andrews, UK
| | - Daniel A. Lafontaine
- RNA Group, Department of Biology, Faculty of Science, Université de SherbrookeSherbrooke, QC, Canada
| | - J. Carlos Penedo
- Laboratory for Biophysics and Biomolecular Dynamics, SUPA School of Physics and Astronomy, University of St. AndrewsSt Andrews, UK
- Laboratory for Biophysics and Biomolecular Dynamics, Biomedical Sciences Research Complex, School of Biology, University of St. AndrewsSt. Andrews, UK
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147
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Sensitive and selective Cu2+ sensor based on 4-(3-(thiophen-2-yl)-9H-carbazol-9-yl)benzaldehyde (TPCBZ) conjugated copper-complex. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.05.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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148
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Yang J, Dou B, Yuan R, Xiang Y. Proximity Binding and Metal Ion-Dependent DNAzyme Cyclic Amplification-Integrated Aptasensor for Label-Free and Sensitive Electrochemical Detection of Thrombin. Anal Chem 2016; 88:8218-23. [PMID: 27436431 DOI: 10.1021/acs.analchem.6b02035] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Thrombin plays important roles for the diagnosis of neurodegenerative and cardiovascular diseases. By integrating proximity binding-induced strand displacement and metal ion-dependent DNAzyme recycling amplification, we demonstrate here the development of a simple and sensitive strategy for the detection of thrombin in human serums. The binding of the two distinct aptamers to the thrombin targets increases the local concentration of the aptamers and facilitates the release of the enzymatic sequences through proximity binding-induced strand displacement. The liberated enzymatic sequences further hybridize with the G-quadruplex containing and hairpin-structured substrate sequences on the sensor electrode to form the metal-ion dependent DNAzymes. Subsequently, the metal ions catalyze the cleavage of the substrate sequences to unlock the G-quadruplex forming sequences and to release the enzymatic sequences to trigger another cleavage cycle. Such metal ion-dependent DNAzyme recycling amplification leads to the formation of many active G-quadruplex forming sequences, which associate with hemin to form G-quadruplex/hemin complexes on the electrode surface. Direct electron transfer of hemin to the electrode during the potential scan can thus generate significantly amplified current for sensitive detection of thrombin at the low picomolar level. The work demonstrated here can thus offer new opportunities for the development of convenient signal amplification strategies for detecting various protein targets.
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Affiliation(s)
- Jianmei Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, PR China
| | - Baoting Dou
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, PR China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, PR China
| | - Yun Xiang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, PR China
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149
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Wang Q, Yang X, Yang X, Wang K, Zhang H, Liu P. An enzyme-free colorimetric assay using hybridization chain reaction amplification and split aptamers. Analyst 2016; 140:7657-62. [PMID: 26442287 DOI: 10.1039/c5an01592h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A novel unmodified gold nanoparticle (AuNP)-based colorimetric assay was demonstrated using split aptamers and the hybridization chain reaction (HCR) amplification strategy. Here, the aptamer was divided into a structure-switching hairpin probe (DNA probe H1 (or H1')) and a single-stranded probe (DNA probe H2 (or H2')). In the presence of the target, DNA probe H1 (or H1') could specifically capture the target with the assistance of DNA probe H2 (or H2') to form a stable complex. Subsequently, the hairpin structure of DNA probe H1 (or H1') was changed, and then a chain reaction of hybridization events between two other hairpin probes (H3 and H4) propagated, resulting in the formation of nicked double-helices. Since it was difficult for such nicked double-helices to inhibit salt-induced AuNP aggregation, a red-to-blue color change was observed. With the elegant amplification effect of HCR, this assay showed a low detection limit (15 nM for Hg(2+) and 1 μM for adenosine), which was lower than or at least comparable to previous AuNP-based methods. The novel strategy not only eliminated the requirements of enzymatic reactions, separation processes, chemical modifications, and sophisticated instruments, but also could be used for other targets only by simply changing the DNA probe sequences.
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Affiliation(s)
- Qing Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China.
| | - Xiaohan Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China.
| | - Xiaohai Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China.
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China.
| | - Hua Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China.
| | - Pei Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China.
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150
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Qin C, Wen W, Zhang X, Gu H, Wang S. Visual detection of thrombin using a strip biosensor through aptamer-cleavage reaction with enzyme catalytic amplification. Analyst 2016; 140:7710-7. [PMID: 26451394 DOI: 10.1039/c5an01712b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new class of strip biosensors has been established based on well-distributed thrombin aptamer-linked gold nanoparticle aggregates, which will undergo a cracking reaction when the target recognizes its homologous aptamer. Combining the aptamer-cleavage reaction with the enzyme catalytic amplification system, our proposed lateral flow strip biosensor (LFB) is capable of visually detecting 6.4 pM of thrombin without instrumentation within 12 minutes. Under the optimal conditions, the quantitative detection of thrombin by a portable strip reader exhibited a linear relationship between the peak area and the concentration of thrombin in the range of 6.4 pM-500 nM with a detection limit of 4.9 pM, which is three orders of magnitude lower than that of the aptamer-functionalized gold nanoparticle-based LFB (2.5 nM, Xu et al., Anal. Chem., 2009, 81, 669-675). As the aptamers have no special requirements and the gold nanoparticles can also be replaced by other metallic nanoparticles, this method for strip sensing is expected to be generally applicable in point of care testing, home testing, medical diagnostics, clinical diagnosis, and environmental monitoring.
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Affiliation(s)
- Chunyan Qin
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| | - Wei Wen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| | - Xiuhua Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| | - Haoshuang Gu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| | - Shengfu Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
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