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Ren M, Ji C, Tang X, Tian H, Jiang L, Dai X, Wu X, Xiang Y. Sensitivity-Tunable Terahertz Liquid/Gas Biosensor Based on Surface Plasmon Resonance with Dirac Semimetal. SENSORS (BASEL, SWITZERLAND) 2023; 23:5520. [PMID: 37420684 DOI: 10.3390/s23125520] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 07/09/2023]
Abstract
In this paper, we study the sensitivity-tunable terahertz (THz) liquid/gas biosensor in a coupling prism-three-dimensional Dirac semimetal (3D DSM) multilayer structure. The high sensitivity of the biosensor originates from the sharp reflected peak caused by surface plasmon resonance (SPR) mode. This structure achieves the tunability of sensitivity due to the fact that the reflectance could be modulated by the Fermi energy of 3D DSM. Besides, it is found that the sensitivity curve depends heavily on the structural parameters of 3D DSM. After parameter optimization, we obtained sensitivity over 100°/RIU for liquid biosensor. We believe this simple structure provides a reference idea for realizing high sensitivity and a tunable biosensor device.
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Affiliation(s)
- Mengjiao Ren
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
| | - Chengpeng Ji
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
| | - Xueyan Tang
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
| | - Haishan Tian
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
| | - Leyong Jiang
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
| | - Xiaoyu Dai
- School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Xinghua Wu
- Key Laboratory for Microstructural Functional Materials of Jiangxi Province, College of Science, Jiujiang University, Jiujiang 332005, China
| | - Yuanjiang Xiang
- School of Physics and Electronics, Hunan University, Changsha 410082, China
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2
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Huertas CS, Calvo-Lozano O, Mitchell A, Lechuga LM. Advanced Evanescent-Wave Optical Biosensors for the Detection of Nucleic Acids: An Analytic Perspective. Front Chem 2019; 7:724. [PMID: 31709240 PMCID: PMC6823211 DOI: 10.3389/fchem.2019.00724] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/10/2019] [Indexed: 12/19/2022] Open
Abstract
Evanescent-wave optical biosensors have become an attractive alternative for the screening of nucleic acids in the clinical context. They possess highly sensitive transducers able to perform detection of a wide range of nucleic acid-based biomarkers without the need of any label or marker. These optical biosensor platforms are very versatile, allowing the incorporation of an almost limitless range of biorecognition probes precisely and robustly adhered to the sensor surface by covalent surface chemistry approaches. In addition, their application can be further enhanced by their combination with different processes, thanks to their integration with complex and automated microfluidic systems, facilitating the development of multiplexed and user-friendly platforms. The objective of this work is to provide a comprehensive synopsis of cutting-edge analytical strategies based on these label-free optical biosensors able to deal with the drawbacks related to DNA and RNA detection, from single point mutations assays and epigenetic alterations, to bacterial infections. Several plasmonic and silicon photonic-based biosensors are described together with their most recent applications in this area. We also identify and analyse the main challenges faced when attempting to harness this technology and how several innovative approaches introduced in the last years manage those issues, including the use of new biorecognition probes, surface functionalization approaches, signal amplification and enhancement strategies, as well as, sophisticated microfluidic solutions.
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Affiliation(s)
- Cesar S. Huertas
- Integrated Photonics and Applications Centre, School of Engineering, Royal Melbourne Institute of Technology University, Melbourne, VIC, Australia
| | - Olalla Calvo-Lozano
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and the Barcelona Institute of Science and Technology, CIBER-BBN, Barcelona, Spain
| | - Arnan Mitchell
- Integrated Photonics and Applications Centre, School of Engineering, Royal Melbourne Institute of Technology University, Melbourne, VIC, Australia
| | - Laura M. Lechuga
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and the Barcelona Institute of Science and Technology, CIBER-BBN, Barcelona, Spain
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3
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Electrochemical DNA Biosensors Based on Labeling with Nanoparticles. NANOMATERIALS 2019; 9:nano9101361. [PMID: 31547500 PMCID: PMC6836269 DOI: 10.3390/nano9101361] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 09/18/2019] [Accepted: 09/20/2019] [Indexed: 02/07/2023]
Abstract
This work reviews the field of DNA biosensors based on electrochemical determination of nanoparticle labels. These labeling platforms contain the attachment of metal nanoparticles (NPs) or quantum dots (QDs) on the target DNA or on a biorecognition reporting probe. Following the development of DNA bioassay, the nanotags are oxidized to ions, which are determined by voltammetric methods, such as pulse voltammetry (PV) and stripping voltammetry (SV). The synergistic effects of NPs amplification (as each nanoprobe releases a large number of detectable ions) and the inherent sensitivity of voltammetric techniques (e.g., thanks to the preconcentration step of SV) leads to the construction of ultrasensitive, low cost, miniaturized, and integrated biodevices. This review focuses on accomplishments in DNA sensing using voltammetric determination of nanotags (such as gold and silver NPs, and Cd- and Pb-based QDs), includes published works on integrated three electrode biodevices and paper-based biosystems, and discusses strategies for multiplex DNA assays and signal enhancement procedures. Besides, this review mentions the electroactive NP synthesis procedures and their conjugation protocols with biomolecules that enable their function as labels in DNA electrochemical biosensors.
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4
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Paper-based device providing visual genetic signatures for precision medicine: application to breast cancer. Anal Bioanal Chem 2019; 411:3769-3776. [DOI: 10.1007/s00216-019-01838-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 03/14/2019] [Accepted: 04/09/2019] [Indexed: 12/14/2022]
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5
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Colorimetric detection of nucleic acid sequences in plant pathogens based on CRISPR/Cas9 triggered signal amplification. Mikrochim Acta 2019; 186:243. [PMID: 30877395 DOI: 10.1007/s00604-019-3348-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 02/27/2019] [Indexed: 01/07/2023]
Abstract
A colorimetric method is presented for the detection of specific nucleotide sequences in plant pathogens. It is based on the use of CRISPR/Cas9-triggered isothermal amplification and gold nanoparticles (AuNPs) as optical probes. The target DNA was recognized and broken up by a given Cas9/sgRNA complex. After isothermal amplification, the product was hybridized with oligonucleotide-functionalized AuNPs. This resulted in the aggregation of AuNPs and a color change from wine red to purple. The visual detection limit is 2 pM of DNA, while a linear relationship exists between the ratio of absorbance at 650 and 525 nm and the DNA concentration in the range from 0.2 pM to 20 nM. In contrast to the previous CRISPR-based amplification platforms, the method has significantly higher specificity with the single-base mismatch and can be visually read out. It was successfully applied to identify the Phytophthora infestans genomic DNA. Graphical abstract Schematic presentation of a colorimetric method for detection of Phytophthora infestans genomic DNA based on CRISPR/Cas9-triggered isothermal amplification. The Cas9 endonuclease cleaves DNA at the design site and the color changes from red to purple with increasing target DNA concentration.
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Miyagawa A, Harada M, Okada T. Zeptomole Biosensing of DNA with Flexible Selectivity Based on Acoustic Levitation of a Single Microsphere Binding Gold Nanoparticles by Hybridization. ACS Sens 2018; 3:1870-1875. [PMID: 30152225 DOI: 10.1021/acssensors.8b00748] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel scheme for DNA sensing at the zeptomole level is presented, based on the levitation of a single microsphere in a combined acoustic-gravitational (CAG) field. The levitation of a microsphere in the field is predominantly determined by its density. Capture and reporter probe DNAs are anchored on poly(methyl methacrylate) microsphere (PMMA) and gold nanoparticles (AuNPs), respectively, and a target DNA induces the binding of AuNPs on PMMA. This interparticle sandwich DNA-hybridization induces density increase in PMMA, which is detected as a shift in the levitation coordinate in the CAG field. The reporter DNAs are designed based on base-pair (bp) number selectivity, which is evaluated using direct interparticle hybridization between DNA-bound PMMA and complementary DNA-anchored AuNPs. Interestingly, the bp-number selectivity can be enlarged by lowering the reactant concentrations. Thus, the threshold bp, at which no density change is detected, can be adjusted by controlling the reactant concentrations. This strategy is extended to the sensing of HIV-2 DNA and single nucleotide polymorphism (SNP) detection of the KRAS gene by sandwich hybridization. In SNP detection, the present method selectively distinguishes wild-type DNA from mutant DNA differing by one nucleotide in the 21-nucleotide sequence by optimizing the lengths of probe DNAs and particle concentrations. This approach allows the detection of 1000 DNA molecules.
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Affiliation(s)
- Akihisa Miyagawa
- Department of Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan
| | - Makoto Harada
- Department of Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan
| | - Tetsuo Okada
- Department of Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan
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7
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Zhang H, Liu X, Liu M, Gao T, Huang Y, Liu Y, Zeng W. Gene detection: An essential process to precision medicine. Biosens Bioelectron 2018; 99:625-636. [DOI: 10.1016/j.bios.2017.08.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 08/12/2017] [Indexed: 01/08/2023]
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8
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Giamblanco N, Petralia S, Conoci S, Messineo C, Marletta G. Ionic strength-controlled hybridization and stability of hybrids of KRAS DNA single-nucleotides: A surface plasmon resonance study. Colloids Surf B Biointerfaces 2017; 158:41-46. [PMID: 28662393 DOI: 10.1016/j.colsurfb.2017.06.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 06/17/2017] [Accepted: 06/19/2017] [Indexed: 11/25/2022]
Abstract
The discrimination of a fully matched, unlabeled KRAS wild-type (WT) (C-G) target sample with respect to three of the most frequent KRAS codon mutations (G12 S (C-A), G12 R (C-C), G12C (C-T)) was investigated using an optimized detection strategy involving surface plasmon resonance (SPR), based on optimized probe-surface density and ionic strength control. The changes observed in the SPR signal were always larger for WT compared with the single-mismatch target DNA oligonucleotides, and were aligned with the theoretical energy differences between the base pair C-G, C-T, C-A, C-C. Hybridization rates of ∼106M-1s-1 were detected without the introduction of high temperature and labels, usually needed in conventional hybridization methods. One hundred percent mutation discrimination of the matched KRAS wild-type (C-G) sequence with respect to three mismatched G12C (C-T), G12 S (C-A), G12 R (C-C) target sequences was achieved.
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Affiliation(s)
- N Giamblanco
- Dept. of Chemical Sciences, University of Catania, Viale A. Doria 6 - 95129 Catania, Italy.
| | - S Petralia
- STMicroelectronics, Stradale Primosole 50, 95121 Catania, Italy
| | - S Conoci
- STMicroelectronics, Stradale Primosole 50, 95121 Catania, Italy.
| | - C Messineo
- Dept. of Chemical Sciences, University of Catania, Viale A. Doria 6 - 95129 Catania, Italy
| | - G Marletta
- Dept. of Chemical Sciences, University of Catania, Viale A. Doria 6 - 95129 Catania, Italy
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9
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Rapisarda A, Giamblanco N, Marletta G. Kinetic discrimination of DNA single-base mutations by localized surface plasmon resonance. J Colloid Interface Sci 2017; 487:141-148. [DOI: 10.1016/j.jcis.2016.10.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/12/2016] [Accepted: 10/13/2016] [Indexed: 10/20/2022]
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10
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Bao B, Zhu J, Gong L, Chen J, Pan Y, Wang L. Sensitive DNA detection using cascade amplification strategy based on conjugated polyelectrolytes and hybridization chain reaction. RSC Adv 2017. [DOI: 10.1039/c6ra25882d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel cascade amplification strategy that combines the molecular wire effects of CPEs with the signal amplification capability of the HCR has been developed for sensitive DNA detection.
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Affiliation(s)
- Biqing Bao
- Key Laboratory for Organic Electronics and Information Displays (KLOEID)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
| | - Jin Zhu
- Key Laboratory for Organic Electronics and Information Displays (KLOEID)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
| | - Lina Gong
- Key Laboratory for Organic Electronics and Information Displays (KLOEID)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
| | - Jia Chen
- Key Laboratory for Organic Electronics and Information Displays (KLOEID)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
| | - Yanrui Pan
- Key Laboratory for Organic Electronics and Information Displays (KLOEID)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays (KLOEID)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications (NUPT)
- Nanjing 210023
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11
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Kuzin Y, Ivanov A, Evtugyn G, Hianik T. Voltammetric Detection of Oxidative DNA Damage Based on Interactions between Polymeric Dyes and DNA. ELECTROANAL 2016. [DOI: 10.1002/elan.201600297] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yury Kuzin
- A. M. Butlerov' Chemistry Institute of Kazan Federal University; 18 Kremlevskaya Street Kazan 420008 Russian Federation
- Department of Nuclear Physics and Biophysics; Comenius University; Mlynska dolina F1 842 48 Bratislava Slovakia
| | - Alexey Ivanov
- A. M. Butlerov' Chemistry Institute of Kazan Federal University; 18 Kremlevskaya Street Kazan 420008 Russian Federation
| | - Gennady Evtugyn
- A. M. Butlerov' Chemistry Institute of Kazan Federal University; 18 Kremlevskaya Street Kazan 420008 Russian Federation
- Department of Nuclear Physics and Biophysics; Comenius University; Mlynska dolina F1 842 48 Bratislava Slovakia
| | - Tibor Hianik
- A. M. Butlerov' Chemistry Institute of Kazan Federal University; 18 Kremlevskaya Street Kazan 420008 Russian Federation
- OpenLab “DNA-Sensors” of Kazan Federal University; 18 Kremlevskaya Street Kazan 420008 Russian Federation
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12
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Gao J, Ma L, Lei Z, Wang Z. Multiple detection of single nucleotide polymorphism by microarray-based resonance light scattering assay with enlarged gold nanoparticle probes. Analyst 2016; 141:1772-8. [DOI: 10.1039/c5an02510a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A gold nanoparticle enlargement assisted DNA microarray-based RLS assay has been developed for multiplexed detection of single nucleotide polymorphism with high sensitivity.
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Affiliation(s)
- Jiaxue Gao
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Lan Ma
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Zhen Lei
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
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13
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Zhu W, Li Z, Liu X, Yan X, Deng L. Determination ofShigella flexneriby a Novel Fluorescent Aptasensor. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1052974] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Krizkova S, Heger Z, Zalewska M, Moulick A, Adam V, Kizek R. Nanotechnologies in protein microarrays. Nanomedicine (Lond) 2015; 10:2743-55. [PMID: 26039143 DOI: 10.2217/nnm.15.81] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Protein microarray technology became an important research tool for study and detection of proteins, protein-protein interactions and a number of other applications. The utilization of nanoparticle-based materials and nanotechnology-based techniques for immobilization allows us not only to extend the surface for biomolecule immobilization resulting in enhanced substrate binding properties, decreased background signals and enhanced reporter systems for more sensitive assays. Generally in contemporarily developed microarray systems, multiple nanotechnology-based techniques are combined. In this review, applications of nanoparticles and nanotechnologies in creating protein microarrays, proteins immobilization and detection are summarized. We anticipate that advanced nanotechnologies can be exploited to expand promising fields of proteins identification, monitoring of protein-protein or drug-protein interactions, or proteins structures.
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Affiliation(s)
- Sona Krizkova
- Department of Chemistry & Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, European Union.,Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Zbynek Heger
- Department of Chemistry & Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, European Union.,Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Marta Zalewska
- Department of Biomedical & Environmental Analysis, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland, European Union
| | - Amitava Moulick
- Department of Chemistry & Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, European Union.,Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Vojtech Adam
- Department of Chemistry & Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, European Union.,Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Rene Kizek
- Department of Chemistry & Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, European Union.,Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
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15
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Lapitan LDS, Guo Y, Zhou D. Nano-enabled bioanalytical approaches to ultrasensitive detection of low abundance single nucleotide polymorphisms. Analyst 2015; 140:3872-87. [PMID: 25785914 PMCID: PMC4456783 DOI: 10.1039/c4an02304h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A survey of the recent, significant developments on nanomaterials enabled ultrasensitive DNA and gene mutation assays is presented.
Single nucleotide polymorphisms (SNPs) constitute the most common types of genetic variations in the human genome. A number of SNPs have been linked to the development of life threatening diseases including cancer, cardiovascular diseases and neurodegenerative diseases. The ability for ultrasensitive and accurate detection of low abundant disease-related SNPs in bodily fluids (e.g. blood, serum, etc.) holds a significant value in the development of non-invasive future biodiagnostic tools. Over the past two decades, nanomaterials have been utilized in a myriad of biosensing applications due to their ability of detecting extremely low quantities of biologically important biomarkers with high sensitivity and accuracy. Of particular interest is the application of such technologies in the detection of SNPs. The use of various nanomaterials, coupled with different powerful signal amplification strategies, has paved the way for a new generation of ultrasensitive SNP biodiagnostic assays. Over the past few years, several ultrasensitive SNP biosensors capable of detecting specific targets down to the ultra-low regimes (ca. aM and below) and therefore holding great promises for early clinical diagnosis of diseases have been developed. This mini review will highlight some of the most recent, significant advances in nanomaterial-based ultrasensitive SNP sensing technologies capable of detecting specific targets on the attomolar (10–18 M) regime or below. In particular, the design of novel, powerful signal amplification strategies that hold the key to the ultrasensitivity is highlighted.
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Affiliation(s)
- Lorico D S Lapitan
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK.
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16
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Chemiluminescence resonance energy transfer imaging on magnetic particles for single-nucleotide polymorphism detection based on ligation chain reaction. Biosens Bioelectron 2015; 65:139-44. [DOI: 10.1016/j.bios.2014.10.025] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 09/24/2014] [Accepted: 10/09/2014] [Indexed: 01/15/2023]
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17
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Mariani S, Scarano S, Carrai M, Barale R, Minunni M. Direct genotyping of C3435T single nucleotide polymorphism in unamplified human MDR1 gene using a surface plasmon resonance imaging DNA sensor. Anal Bioanal Chem 2015; 407:4023-8. [DOI: 10.1007/s00216-014-8424-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 12/16/2014] [Indexed: 11/30/2022]
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18
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Zhu X, Feng C, Zhang B, Tong H, Gao T, Li G. A netlike rolling circle nucleic acid amplification technique. Analyst 2015; 140:74-8. [DOI: 10.1039/c4an01711k] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An isothermal nucleic acid amplification technique termed as netlike rolling circle amplification is proposed. Dense and uniform network morphology of amplified products is first observed, suggesting the ultrahigh amplification efficiency.
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Affiliation(s)
- Xiaoli Zhu
- Laboratory of Biosensing Technology
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- P R China
| | - Chang Feng
- Laboratory of Biosensing Technology
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- P R China
| | - Bin Zhang
- Laboratory of Biosensing Technology
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- P R China
| | - Hui Tong
- Laboratory of Biosensing Technology
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- P R China
| | - Tao Gao
- State Key Laboratory of Pharmaceutical Biotechnology
- Department of Biochemistry
- Nanjing University
- Nanjing 210093
- P R China
| | - Genxi Li
- Laboratory of Biosensing Technology
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- P R China
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19
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Mariani S, Scarano S, Ermini ML, Bonini M, Minunni M. Investigating nanoparticle properties in plasmonic nanoarchitectures with DNA by surface plasmon resonance imaging. Chem Commun (Camb) 2015; 51:6587-90. [DOI: 10.1039/c4cc09889g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The optimal optical coupling conditions between SPWs and nanoparticle LSPs can be achieved by overlapping the source wavelength with the wavelength of excitation of LSPs.
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Affiliation(s)
- Stefano Mariani
- Dipartimento di Chimica “Ugo Schiff”
- Università di Firenze
- 50019 Sesto Fiorentino
- Italy
| | - Simona Scarano
- Dipartimento di Chimica “Ugo Schiff”
- Università di Firenze
- 50019 Sesto Fiorentino
- Italy
| | - Maria Laura Ermini
- Dipartimento di Chimica “Ugo Schiff”
- Università di Firenze
- 50019 Sesto Fiorentino
- Italy
| | - Massimo Bonini
- Dipartimento di Chimica “Ugo Schiff”
- Università di Firenze
- 50019 Sesto Fiorentino
- Italy
- Consorzio dei Sistemi a Grande Interfase (CSGI)
| | - Maria Minunni
- Dipartimento di Chimica “Ugo Schiff”
- Università di Firenze
- 50019 Sesto Fiorentino
- Italy
- Consorzio dei Sistemi a Grande Interfase (CSGI)
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20
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Kokkinos C, Economou A, Speliotis T, Petrou P, Kakabakos S. Flexible microfabricated film sensors for the in situ quantum dot-based voltammetric detection of DNA hybridization in microwells. Anal Chem 2014; 87:853-7. [PMID: 25514352 DOI: 10.1021/ac503791j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A new flexible miniaturized integrated device was microfabricated for the in situ ultrasensitive voltammetric determination of DNA mutation in a microwell format, using quantum dots (QDs) labels. The integrated device consisted of thin Bi, Ag, and Pt films (serving as the working, reference, and counter electrode, respectively) deposited by sputtering on a flexible polyimide substrate. A DNA assay was employed in microwell format, where an immobilized complementary oligonucleotide probe hybridized with the biotinylated target oligonucleotide followed by reaction with streptavidin-conjugated PbS QDs. After the acidic dissolution of the QDs, the flexible sensor was rolled and inserted into the microwell and the Pb(II) released was determined in situ by anodic stripping voltammetry. Since the analysis took place directly in the microwell, the volume of the working solution was only 100 μL and the target DNA could be detected at a concentration down to 1.1 fmol L(-1). The proposed flexible microdevice addresses the restrictions of conventional rigid electrodes while it provides a low cost integrated transducer for the ultrasensitive detection of important biomolecules.
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Affiliation(s)
- Christos Kokkinos
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina , Ioannina, 45110, Greece
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