551
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Parolo C, de la Escosura-Muñiz A, Polo E, Grazú V, de la Fuente JM, Merkoçi A. Design, preparation, and evaluation of a fixed-orientation antibody/gold-nanoparticle conjugate as an immunosensing label. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10753-9. [PMID: 24095174 DOI: 10.1021/am4029153] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Herein, we describe the development of a new, highly efficient label for immunosensing comprising an antibody/PEGylated gold-nanoparticle (AuNP) conjugate in which the antibody molecules are bound to the AuNP surface in a fixed orientation. Our method exploits the high density of positive charges on the major plane of antibodies that exists when the pH of the solution is lower than the isoelectric point of the antibody; the antibody molecules interact with the negatively charged AuNP surface through their major plane, enabling the antigen binding sites to move freely and therefore to reach maximum accessibility. This directed ionic interaction is reinforced by the formation of a peptide bond between the amino group of the Lys residues in the antibodies and the carboxylic groups of the PEGylated-AuNP surface via EDC chemistry. Electrochemical analyses revealed that the fixed-orientation conjugate offers a limit of detection that is 1 order of magnitude lower than that of a randomly oriented label. The performance of the new conjugate as an immunosensing label was assessed for the quantitative detection of IgG in human serum.
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Affiliation(s)
- Claudio Parolo
- ICN2 - Institut Catala de Nanociencia i Nanotecnologia, Campus UAB , 08193 Bellaterra (Barcelona), Spain
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552
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Liu D, Wang Z, Jin A, Huang X, Sun X, Wang F, Yan Q, Ge S, Xia N, Niu G, Liu G, Hight Walker AR, Chen X. Acetylcholinesterase-Catalyzed Hydrolysis Allows Ultrasensitive Detection of Pathogens with the Naked Eye. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307952] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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553
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Liu D, Wang Z, Jin A, Huang X, Sun X, Wang F, Yan Q, Ge S, Xia N, Niu G, Liu G, Hight Walker AR, Chen X. Acetylcholinesterase-catalyzed hydrolysis allows ultrasensitive detection of pathogens with the naked eye. Angew Chem Int Ed Engl 2013; 52:14065-9. [PMID: 24155243 DOI: 10.1002/anie.201307952] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Indexed: 01/21/2023]
Affiliation(s)
- Dingbin Liu
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD 20892 (USA)
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554
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Li K, Qin W, Li F, Zhao X, Jiang B, Wang K, Deng S, Fan C, Li D. Nanoplasmonic Imaging of Latent Fingerprints and Identification of Cocaine. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305980] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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555
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Li K, Qin W, Li F, Zhao X, Jiang B, Wang K, Deng S, Fan C, Li D. Nanoplasmonic imaging of latent fingerprints and identification of cocaine. Angew Chem Int Ed Engl 2013; 52:11542-5. [PMID: 24038830 DOI: 10.1002/anie.201305980] [Citation(s) in RCA: 134] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Indexed: 11/12/2022]
Abstract
Search for traces: Aptamer-bound Au nanoparticles (Au NPs) were used to provide high-resolution dark-field microscopy images of latent fingerprints (LFPs) with level 2 and level 3 details. Furthermore, the cocaine-induced aggregation of Au NPs results in a true green-to-red color change of the scattered light, providing a quasi-quantative method to identify cocaine loadings in LFPs.
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Affiliation(s)
- Kun Li
- 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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556
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de la Rica R, Stevens MM. Plasmonic ELISA for the detection of analytes at ultralow concentrations with the naked eye. Nat Protoc 2013; 8:1759-64. [DOI: 10.1038/nprot.2013.085] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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557
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Zhang Y, Guo Y, Xianyu Y, Chen W, Zhao Y, Jiang X. Nanomaterials for ultrasensitive protein detection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:3802-3819. [PMID: 23740753 DOI: 10.1002/adma.201301334] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Indexed: 06/02/2023]
Abstract
The advances of nanomaterials have provided exciting technologies and novel materials for protein detection, based on the unique properties associated with nanoscale phenomena such as plasmon resonance, catalysis and energy transfer. This article reviews a series of nanomaterials including nanoparticles, nanofibers, nanowires, and nanosheets, and evaluates their performances in the application for protein detection, focusing on approaches that realize ultrasensitive detection. Many of these nanomaterials were used to analyze clinically relevant protein biomarkers. Their detection in the picomolar, femtomolar or even zeptomolar regime has been realized, sometimes even with naked-eye readout. We summarize the detection methods and results according to materials and targets, review the current challenges, and discuss the solution in the context of technological integration such as combining nanomaterials with microfluidics, and classical analytical technologies.
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Affiliation(s)
- Yi Zhang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, PR China
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558
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Gao Z, Xu M, Hou L, Chen G, Tang D. Magnetic Bead-Based Reverse Colorimetric Immunoassay Strategy for Sensing Biomolecules. Anal Chem 2013; 85:6945-52. [DOI: 10.1021/ac401433p] [Citation(s) in RCA: 194] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zhuangqiang Gao
- Key Laboratory of Analysis and Detection for Food Safety (Fujian Province & Ministry of Education of China), Department of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| | - Mingdi Xu
- Key Laboratory of Analysis and Detection for Food Safety (Fujian Province & Ministry of Education of China), Department of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| | - Li Hou
- Key Laboratory of Analysis and Detection for Food Safety (Fujian Province & Ministry of Education of China), Department of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| | - Guonan Chen
- Key Laboratory of Analysis and Detection for Food Safety (Fujian Province & Ministry of Education of China), Department of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| | - Dianping Tang
- Key Laboratory of Analysis and Detection for Food Safety (Fujian Province & Ministry of Education of China), Department of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
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559
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Lu Y, Liu Y, Zhang S, Wang S, Zhang S, Zhang X. Aptamer-based plasmonic sensor array for discrimination of proteins and cells with the naked eye. Anal Chem 2013; 85:6571-4. [PMID: 23796129 DOI: 10.1021/ac4014594] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We developed a colorimetric sensor array with reported protein aptamers as nonspecific receptors. We found that different target proteins could make the aptamer-protected gold nanoparticles (AuNPs) exhibit different aggregation behaviors in the presence of a high concentration salt and cause various color change. On the basis of this phenomenon, we applied a series of reported protein aptamers as a receptor array obtaining a distinct response pattern to each target protein. Seven proteins have been well distinguished with the naked eye at the 50 nM level. Cancerous human cells have also been discriminated from noncancerous cells. This method is simple, label-free, and sensitive. It will broaden the application filed of plasmonic nanoparticle-based sensors and give a new direction of developing sensitive array sensing systems.
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560
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Liu D, Huang X, Wang Z, Jin A, Sun X, Zhu L, Wang F, Ma Y, Niu G, HightWalker AR, Chen X. Gold nanoparticle-based activatable probe for sensing ultralow levels of prostate-specific antigen. ACS NANO 2013; 7:5568-76. [PMID: 23683064 PMCID: PMC3696512 DOI: 10.1021/nn401837q] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
It is still in high demand to develop extremely sensitive and accurate clinical tools for biomarkers of interest for early diagnosis and monitoring of diseases. In this report, we present a highly sensitive and compatible gold nanoparticle (AuNP)-based fluorescence-activatable probe for sensing ultralow levels of prostate-specific antigen (PSA) in patient serum samples. The limit of detection of the newly developed probe for PSA was pushed down to 0.032 pg/mL, which is more than 2 orders of magnitude lower than that of the conventional fluorescence probe. The ultrahigh sensitivity of this probe was attributed to the high loading efficiency of the dyes on AuNP surfaces and high fluorescence quenching-unquenching abilities of the dye-AuNP pairs. The efficiency and robustness of this probe were investigated in patient serum samples, demonstrating the great potential of this probe in real-world applications.
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Affiliation(s)
- Dingbin Liu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892 (United States)
| | - Xinglu Huang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892 (United States)
| | - Zhantong Wang
- Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361005 (China)
| | - Albert Jin
- Laboratory of Cellular Imaging and Macromolecular Biophysics, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20982 (United States)
| | - Xiaolian Sun
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892 (United States)
| | - Lei Zhu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892 (United States)
- Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361005 (China)
| | - Fu Wang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892 (United States)
| | - Ying Ma
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892 (United States)
| | - Gang Niu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892 (United States)
| | - Angela R. HightWalker
- Optical Technology Division, Physics Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)
| | - Xiaoyuan Chen
- Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361005 (China)
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561
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Valentini P, Fiammengo R, Sabella S, Gariboldi M, Maiorano G, Cingolani R, Pompa PP. Gold-nanoparticle-based colorimetric discrimination of cancer-related point mutations with picomolar sensitivity. ACS NANO 2013; 7:5530-8. [PMID: 23697628 DOI: 10.1021/nn401757w] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Point mutations in the Kirsten rat sarcoma viral oncogene homologue (KRAS) gene are being increasingly recognized as important diagnostic and prognostic markers in cancer. In this work, we describe a rapid and low-cost method for the naked-eye detection of cancer-related point mutations in KRAS based on gold nanoparticles. This simple colorimetric assay is sensitive (limit of detection in the low picomolar range), instrument-free, and employs nonstringent room temperature conditions due to a combination of DNA-conjugated gold nanoparticles, a probe design which exploits cooperative hybridization for increased binding affinity, and signal enhancement on the surface of magnetic beads. Additionally, the scheme is suitable for point-of-care applications, as it combines naked-eye detection, small sample volumes, and isothermal (PCR-free) amplification.
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Affiliation(s)
- Paola Valentini
- Center for Bio-Molecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, Via Barsanti-73010 Arnesano (Lecce), Italy
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562
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Wang L, Lei J, Ma R, Ju H. Host–Guest Interaction of Adamantine with a β-Cyclodextrin-Functionalized AuPd Bimetallic Nanoprobe for Ultrasensitive Electrochemical Immunoassay of Small Molecules. Anal Chem 2013; 85:6505-10. [DOI: 10.1021/ac401105p] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Lisong Wang
- State Key Laboratory of Analytical
Chemistry for Life
Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Jianping Lei
- State Key Laboratory of Analytical
Chemistry for Life
Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Rongna Ma
- State Key Laboratory of Analytical
Chemistry for Life
Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Huangxian Ju
- State Key Laboratory of Analytical
Chemistry for Life
Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
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563
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C3'-endo-puckered pyrrolidine containing PNA has favorable geometry for RNA binding: novel ethano locked PNA (ethano-PNA). Bioorg Med Chem 2013; 21:4092-101. [PMID: 23743441 DOI: 10.1016/j.bmc.2013.05.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 05/08/2013] [Accepted: 05/09/2013] [Indexed: 11/22/2022]
Abstract
A novel peptide nucleic acid (PNA) analogue is designed with a constraint in the aminoethyl segment of the aegPNA backbone so that the dihedral angle β is restricted within 60-80°, compatible to form PNA:RNA duplexes. The designed monomer is further functionalized with positively charged amino-/guanidino-groups. The appropriately protected monomers were synthesized and incorporated into aegPNA oligomers at predetermined positions and their binding abilities with cDNA and RNA were investigated. A single incorporation of the modified PNA monomer into a 12-mer PNA sequence resulted in stronger binding with complementary RNA over cDNA. No significant changes in the CD signatures of the derived duplexes of modified PNA with complementary RNA were observed.
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564
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Grzelczak M, Liz-Marzán LM. Colloidal nanoplasmonics: from building blocks to sensing devices. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:4652-4663. [PMID: 23421758 DOI: 10.1021/la4001544] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Nanoplasmonics is a rapidly developing field of research and technology that is based on the ability of small metal particles to interact strongly with light of wavelength significantly larger than their size. The development of nanoplasmonics has been closely associated with the application of colloid science to the controlled growth of metal nanocrystals in solution and to directing the self-assembly of such nanocrystals into organized arrays with enhanced collective properties. Engineering the morphology and the assembly of metal nanoparticles is a key step toward the fabrication of devices with great potential in detection and diagnosis as well as in a wide variety of other fields. In this Feature Article, we provide an overview of the recent work in our laboratory, which in our view somehow reflects the evolution of the field itself and provides guidelines for future research.
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Affiliation(s)
- Marek Grzelczak
- Bionanoplasmonics Laboratory, CIC biomaGUNE, Donostia-San Sebastián, Spain
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565
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Tittl A, Yin X, Giessen H, Tian XD, Tian ZQ, Kremers C, Chigrin DN, Liu N. Plasmonic smart dust for probing local chemical reactions. NANO LETTERS 2013; 13:1816-21. [PMID: 23458121 DOI: 10.1021/nl4005089] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Locally probing chemical reactions or catalytic processes on surfaces under realistic reaction conditions has remained one of the main challenges in materials science and heterogeneous catalysis. Where conventional surface interrogation techniques usually require high-vacuum conditions or ensemble average measurements, plasmonic nanoparticles excel in extreme light focusing and can produce highly confined electromagnetic fields in subwavelength volumes without the need for complex near-field microscopes. Here, we demonstrate an all-optical probing technique based on plasmonic smart dust for monitoring local chemical reactions in real time. The silica shell-isolated gold nanoparticles that form the smart dust can work as strong light concentrators and optically report subtle environmental changes at their pinning sites on the probed surface during reaction processes. As a model system, we investigate the hydrogen dissociation and subsequent uptake trajectory in palladium with both "dust-on-film" and "film-on-dust" platforms. Using time-resolved single particle measurements, we demonstrate that our technique can in situ encode chemical reaction information as optical signals for a variety of surface morphologies. The presented technique offers a unique scheme for real-time, label-free, and high-resolution probing of local reaction kinetics in a plethora of important chemical reactions on surfaces, paving the way toward the development of inexpensive and high-output reaction sensors for real-world applications.
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Affiliation(s)
- Andreas Tittl
- 4h Physics Institute and Research Center Scope, University of Stuttgart, Stuttgart, Germany
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566
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Micklitsch CM, Oquare BY, Zhao C, Appella DH. Cyclopentane-peptide nucleic acids for qualitative, quantitative, and repetitive detection of nucleic acids. Anal Chem 2013; 85:251-7. [PMID: 23214925 PMCID: PMC3535555 DOI: 10.1021/ac3026459] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the development of chemically modified peptide nucleic acids (PNAs) as probes for qualitative and quantitative detection of DNA. The remarkable stability of PNAs toward enzymatic degradation makes this class of molecules ideal to develop as part of a diagnostic device that can be used outside of a laboratory setting. Using an enzyme-linked reporter assay, we demonstrate that excellent levels of detection and accuracy for anthrax DNA can be achieved using PNA probes with suitable chemical components designed into the probe. In addition, we report on DNA-templated cross-linking of PNA probes as a way to preserve genetic information for repetitive and subsequent analysis. This report is the first detailed examination of the qualitative and quantitative properties of chemically modified PNA for nucleic acid detection and provides a platform for studying and optimizing PNA probes prior to incorporation into new technological platforms.
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567
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Gobbo P, Biondi MJ, Feld JJ, Workentin MS. Arresting the time-dependent H2O2 mediated synthesis of gold nanoparticles for analytical detection and preparative chemistry. J Mater Chem B 2013; 1:4048-4051. [DOI: 10.1039/c3tb20913j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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568
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Zhou J, Zhuang J, Tang J, Li Q, Tang D, Chen G. Dual-nanogold-linked bio-barcodes with superstructures for in situ amplified electronic detection of low-abundance proteins. MOLECULAR BIOSYSTEMS 2013; 9:622-5. [DOI: 10.1039/c3mb25536k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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