1
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Phan TTM, Phan TM, Schmit JD. Beneficial and detrimental effects of non-specific binding during DNA hybridization. Biophys J 2023; 122:835-848. [PMID: 36721368 PMCID: PMC10027450 DOI: 10.1016/j.bpj.2023.01.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 10/09/2022] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
DNA strands have to sample numerous states to find the alignment that maximizes Watson-Crick-Franklin base pairing. This process depends strongly on sequence, which affects the stability of the native duplex as well as the prevalence of non-native inter- and intramolecular helices. We present a theory that describes DNA hybridization as a three-stage process: diffusion, registry search, and zipping. We find that non-specific binding affects each of these stages in different ways. Mis-registered intermolecular binding in the registry search stage helps DNA strands sample different alignments and accelerates the hybridization rate. Non-native intramolecular structure affects all three stages by rendering portions of the molecule inert to intermolecular association, limiting mis-registered alignments to be sampled, and impeding the zipping process. Once in-register base pairs are formed, the stability of the native structure is important to hold the molecules together long enough for non-native contacts to break.
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Affiliation(s)
- Tam T M Phan
- Department of Physics, Kansas State University, Manhattan, Kansas
| | - Tien M Phan
- Department of Physics, Kansas State University, Manhattan, Kansas
| | - Jeremy D Schmit
- Department of Physics, Kansas State University, Manhattan, Kansas.
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2
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Oberc C, Brar P, Li PC. Centrifugal dynamic hybridization conducted in a microfluidic chip for signal enhancement in nucleic acid tests. Anal Biochem 2022; 658:114930. [DOI: 10.1016/j.ab.2022.114930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 12/01/2022]
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3
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Galúcio JMP, de Souza SGB, Vasconcelos AA, Lima AKO, da Costa KS, de Campos Braga H, Taube PS. Synthesis, Characterization, Applications, and Toxicity of Green Synthesized Nanoparticles. Curr Pharm Biotechnol 2021; 23:420-443. [PMID: 34355680 DOI: 10.2174/1389201022666210521102307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/25/2021] [Accepted: 03/16/2021] [Indexed: 11/22/2022]
Abstract
Nanotechnology is a cutting-edge area with numerous industrial applications. Nanoparticles are structures that have dimensions ranging from 1-100 nm which exhibit significantly different mechanical, optical, electrical, and chemical properties when compared with their larger counterparts. Synthetic routes that use natural sources, such as plant extracts, honey, and microorganisms are environmentally friendly and low-cost methods that can be used to obtain nanoparticles. These methods of synthesis generate products that are more stable and less toxic than those obtained using conventional methods. Nanoparticles formed by titanium dioxide, zinc oxide, silver, gold, and copper, as well as cellulose nanocrystals are among the nanostructures obtained by green synthesis that have shown interesting applications in several technological industries. Several analytical techniques have also been used to analyze the size, morphology, hydrodynamics, diameter, and chemical functional groups involved in the stabilization of the nanoparticles as well as to quantify and evaluate their formation. Despite their pharmaceutical, biotechnological, cosmetic, and food applications, studies have detected their harmful effects on human health and the environment; and thus, caution must be taken in uses involving living organisms. The present review aims to present an overview of the applications, the structural properties, and the green synthesis methods that are used to obtain nanoparticles, and special attention is given to those obtained from metal ions. The review also presents the analytical methods used to analyze, quantify, and characterize these nanostructures.
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Affiliation(s)
| | | | | | - Alan Kelbis Oliveira Lima
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasília, Brazil
| | - Kauê Santana da Costa
- Institute of Biodiversity, Federal University of Western Pará, Santarém, Pará, Brazil
| | - Hugo de Campos Braga
- Institute of Science and Technology, Federal University of São Paulo, São José dos Campos, Brazil
| | - Paulo Sérgio Taube
- Institute of Biodiversity, Federal University of Western Pará, Santarém, Pará, Brazil
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4
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Abstract
Hybridization between nucleic acid strands immobilized on a solid support with partners in solution is widely practiced in bioanalytical technologies and materials science. An important fundamental aspect of understanding these reactions is the role played by immobilization in the dynamics of duplex formation and disassembly. This report reviews and analyzes literature kinetic data to identify commonly observed trends and to correlate them with probable molecular mechanisms. The analysis reveals that while under certain conditions impacts from immobilization are minimal so that surface and solution hybridization kinetics are comparable, it is more typical to observe pronounced offsets between the two scenarios. In the forward (hybridization) direction, rates at the surface commonly decrease by one to two decades relative to solution, while in the reverse direction rates of strand separation at the surface can exceed those in solution by tens of decades. By recasting the deviations in terms of activation barriers, a consensus of how immobilization impacts nucleation, zipping, and strand separation can be conceived within the classical mechanism in which duplex formation is rate limited by preassembly of a nucleus a few base pairs in length, while dehybridization requires the cumulative breakup of base pairs along the length of a duplex. Evidence is considered for how excess interactions encountered on solid supports impact these processes.
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Affiliation(s)
- Eshan Treasurer
- Department of Chemical and Biomolecular Engineering, New York University Tandon School of Engineering, Brooklyn, New York 11201, United States
| | - Rastislav Levicky
- Department of Chemical and Biomolecular Engineering, New York University Tandon School of Engineering, Brooklyn, New York 11201, United States
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5
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Traeger JC, Lamberty Z, Schwartz DK. Influence of Oligonucleotide Grafting Density on Surface-Mediated DNA Transport and Hybridization. ACS NANO 2019; 13:7850-7859. [PMID: 31244029 DOI: 10.1021/acsnano.9b02157] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Adsorption of soluble DNA to surfaces decorated with complementary DNA plays an important role in many bionanotechnology applications, and previous studies have reported complex dependencies of the surface density of immobilized DNA on hybridization. While these effects have been speculatively ascribed to steric or electrostatic effects, the influence of surface-mediated molecular transport (i.e., intermittent "hopping diffusion") has not been fully appreciated. Here, single-molecule tracking and Förster resonance energy transfer (FRET) were employed to characterize the mobility and the hybridization efficiency of adsorbed ssDNA oligonucleotides ("target") at solid-liquid interfaces exhibiting surface-immobilized ssDNA ("probe") over a wide range of surface grafting densities. Two distinct regimes were observed, with qualitatively different transport and hybridization behaviors. At dilute grafting density, only 1-3% of target molecules were observed to associate with probes (i.e., to hybridize). Adsorbing target molecules often searched unsuccessfully and "flew", via desorption-mediated diffusion, to secondary locations before hybridizing. In contrast, at high probe grafting density, approximately 20% of target DNA hybridized to immobilized probes, and almost always in the vicinity of initial adsorption. Moreover, following a dehybridization event, target molecules rehybridized at high probe density, but rehybridization was infrequent in the dilute density regime. Interestingly, the intermittent interfacial transport of mobile target molecules was suppressed by the presence of immobilized probe DNA, presumably due to an increased probability of readsorption following each "hop". Together, these findings suggested that many salient effects of grafting density on surface-mediated DNA hybridization can be directly related to the mechanisms of surface-mediated intermittent diffusion.
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Affiliation(s)
- Jeremiah C Traeger
- Department of Chemical and Biological Engineering , University of Colorado Boulder , Boulder , Colorado 80309 , United States
| | - Zachary Lamberty
- Department of Chemical and Biological Engineering , University of Colorado Boulder , Boulder , Colorado 80309 , United States
| | - Daniel K Schwartz
- Department of Chemical and Biological Engineering , University of Colorado Boulder , Boulder , Colorado 80309 , United States
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6
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Vorobjev P, Epanchintseva A, Lomzov A, Tupikin A, Kabilov M, Pyshnaya I, Pyshnyi D. DNA Binding to Gold Nanoparticles through the Prism of Molecular Selection: Sequence-Affinity Relation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7916-7928. [PMID: 31117729 DOI: 10.1021/acs.langmuir.9b00661] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Native DNA strongly adsorbs to citrate-coated gold nanoparticles (AuNPs). The resulting composites (DNA/AuNPs) are valuable materials in many fields, especially in biomedicine. For this reason, the process of adsorption is a focus for intensive research. In this work, DNA adsorption to gold nanoparticles was studied using a molecular selection procedure followed by high-throughput DNA sequencing. The chemically synthesized DNA library containing a central N26 randomized fragment was sieved through four cycles of adsorption to AuNPs in a tree-like selection-amplification scheme (SELEX (Selective Evolution of Ligands by EXponential enrichment)). The frequencies of occurrence of specific oligomeric DNA motifs, k-mers ( k = 1-6), in the initial and selected pools were calculated. Distribution of secondary structures in the pools was analyzed. A large set of diverse A, T, and G enriched k-mers undergo a pronounced positive selection, and these sequences demonstrate faster and strong binding to the AuNPs. For facile binding, such structural motifs should be located in the loop regions of weak intramolecular complexes-hairpins with imperfect stem, or other portion of the structure, which is unpaired under selection conditions. Our data also show that, under the conditions employed in this study, cytosine is significantly depleted during the selection process, although guanine remains unchanged. These regularities were confirmed in a series of binding experiments with a set of synthetic DNA oligonucleotides. The detailed analysis of DNA binding to AuNPs shows that the sequence specificity of this interaction is low due to its nature, although the presence and the number of specific structural motifs in DNA affect both the rate of formation and the strength of the formed noncovalent associates with AuNPs.
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Affiliation(s)
- Pavel Vorobjev
- Institute of Chemical Biology and Fundamental Medicine , Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue , Novosibirsk 630090 , Russia
- Novosibirsk State University , 2, Pirogova Street , Novosibirsk 630090 , Russia
| | - Anna Epanchintseva
- Institute of Chemical Biology and Fundamental Medicine , Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue , Novosibirsk 630090 , Russia
| | - Alexander Lomzov
- Institute of Chemical Biology and Fundamental Medicine , Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue , Novosibirsk 630090 , Russia
- Novosibirsk State University , 2, Pirogova Street , Novosibirsk 630090 , Russia
| | - Aleksey Tupikin
- Institute of Chemical Biology and Fundamental Medicine , Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue , Novosibirsk 630090 , Russia
| | - Marsel Kabilov
- Institute of Chemical Biology and Fundamental Medicine , Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue , Novosibirsk 630090 , Russia
| | - Inna Pyshnaya
- Institute of Chemical Biology and Fundamental Medicine , Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue , Novosibirsk 630090 , Russia
| | - Dmitrii Pyshnyi
- Institute of Chemical Biology and Fundamental Medicine , Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue , Novosibirsk 630090 , Russia
- Novosibirsk State University , 2, Pirogova Street , Novosibirsk 630090 , Russia
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7
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Khandelwal P, Singh DK, Poddar P. Advances in the Experimental and Theoretical Understandings of Antibiotic Conjugated Gold Nanoparticles for Antibacterial Applications. ChemistrySelect 2019. [DOI: 10.1002/slct.201900083] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Puneet Khandelwal
- Physical & Materials Chemistry DivisionCSIR-National Chemical Laboratory Pune - 411008 India
| | - Dheeraj K. Singh
- Department of PhysicsInstitute of Infrastructure Technology Research & Management Ahmedabad - 380026 India
| | - Pankaj Poddar
- Physical & Materials Chemistry DivisionCSIR-National Chemical Laboratory Pune - 411008 India
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8
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Grueso E, Giráldez-Pérez RM, Perez-Tejeda P, Roldán E, Prado-Gotor R. What controls the unusual melting profiles of small AuNPs/DNA complexes. Phys Chem Chem Phys 2019; 21:11019-11032. [PMID: 31089595 DOI: 10.1039/c9cp01162e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The effect of the addition of low concentrations of an inner electrolyte on ds-DNA CT-DNA (calf thymus DNA) and ss-DNA conformational changes induced by small N-(2-mercaptopropionyl)glycine gold nanoparticles (AuNPs) is here studied in detail by using different spectroscopic and structural techniques. The high affinity of ss-DNA to AuNPs compared with ds-DNA is easily demonstrated by the results of competitive binding with SYBR Green I (SG). Additionally, it is proven that at 25.0 °C, AuNPs/ds-DNA and AuNPs/ss-DNA complexes undergo a transition from extended-coil to more compact structures when the AuNPs concentration (CAuNPs) is increased, which for the ds-DNA system is accompanied by partial denaturation. Particularly, for the AuNPs/ss-DNA system all of these techniques confirm that at a high CAuNPs, the compaction process is followed by a discrete transition to aggregation and an increase in structure size. A thorough analysis of the conformational changes described indicates that these processes are larger in low salt concentration and at high temperature. However, the most striking feature of this work is the abnormal melting temperature profiles (Tm) registered at high R = CAuNPs/CDNA ratios, which are remarkable and of interest for chemical sensing. At a suitable R ratio, which varies depending on CNaCl, a complex melting profile for the AuNPs/ds-DNA system was registered with two characteristic transitions: Tm,1 = 65.0 °C and Tm,2 = 95.0 °C. The highly sensitive atomic force microscopy technique performed at 25.0 °C and 65.0 °C also showed a different behaviour in both ss- and AuNPs/ds-DNA systems, which explains the characteristic melting curves. Specifically for the AuNPs/ss-DNA system, AFM at 25.0 °C revealed the formation of large-sized aggregates formed by AuNPs/ss-DNA compact structures linked by AuNPs. However, when both AuNPs/ds-DNA and AuNPs/ss-DNA complexes were incubated at 65.0 °C, the formation of highly stable ordered structures was always visualized at high R. Therefore, this shows that some key parameters for effective control of the formation of DNA/RNA-linked particles are: the selection of an optimal temperature below the ds-DNA melting point, an appropriate CAuNPs, and the addition of low CNaCl. The optimization of these parameters for each AuNPs/DNA system could improve biological sensing and DNA/RNA delivery.
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Affiliation(s)
- Elia Grueso
- Department of Physical Chemistry, University of Sevilla, C/Profesor García González s/n, 41012 Sevilla, Spain.
| | - Rosa M Giráldez-Pérez
- Department of Physical Chemistry, University of Sevilla, C/Profesor García González s/n, 41012 Sevilla, Spain.
| | - Pilar Perez-Tejeda
- Department of Physical Chemistry, University of Sevilla, C/Profesor García González s/n, 41012 Sevilla, Spain.
| | - Emilio Roldán
- Department of Physical Chemistry, University of Sevilla, C/Profesor García González s/n, 41012 Sevilla, Spain.
| | - R Prado-Gotor
- Department of Physical Chemistry, University of Sevilla, C/Profesor García González s/n, 41012 Sevilla, Spain.
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9
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Zhang X, Feng Y, Duan S, Su L, Zhang J, He F. Mycobacterium tuberculosis strain H37Rv Electrochemical Sensor Mediated by Aptamer and AuNPs-DNA. ACS Sens 2019; 4:849-855. [PMID: 30900450 DOI: 10.1021/acssensors.8b01230] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The accurate and rapid detection of Mycobacterium tuberculosis ( M. tuberculosis) is essential for the effective treatment of tuberculosis. In this article, we propose an electrochemical sensor to detect M. tuberculosis reference strain H37Rv. The sensor contains an H37Rv aptamer and oligonucleotides modified with gold nanoparticles (AuNPs-DNA). An H37Rv aptamer screened by our laboratory was used as the recognition probe. The change in frequency shift mediated by AuNPs-DNA in the presence of H37Rv was detected using a multichannel series piezoelectric quartz crystal (MSPQC) system. Three oligonucleotides modified with gold nanoparticles were designed. These oligonucleotides contained 12, 12, and 13 bases that hybridized with the 37-nt H37Rv aptamer. H37Rv aptamer was immobilized on the gold electrode surface by Au-S bonds. A conductive-layer was then formed by sequential hybridization of the aptamer with the three designed AuNPs-DNAs. When H37Rv was present, it specifically bound to the aptamer, resulting in the detachment of AuNPs-DNA from the electrode. The conductive layer was thereby replaced by a nonconductive complex of aptamer and bacteria. These changes were monitored by the MSPQC system. The proposed sensor is rapid, specific and sensitive, the detection time was 2 h. The detection limit was 100 cfu/mL. This sensor would be of great benefit for the early clinical diagnosis of tuberculosis.
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Affiliation(s)
- Xiaoqing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China, 410082
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China, 410208
| | - Ye Feng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China, 410082
| | - Shaoyun Duan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China, 410082
| | - Lingling Su
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China, 410082
| | - Jialin Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China, 410082
| | - Fengjiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China, 410082
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10
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Imran H, Manikandan PN, Dharuman V. Ultra-sensitive and selective label free electrochemical DNA detection at layer-by-layer self-assembled graphene oxide and vesicle liposome nano-architecture. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.01.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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11
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Das P, Sedighi A, Krull UJ. Cancer biomarker determination by resonance energy transfer using functional fluorescent nanoprobes. Anal Chim Acta 2018; 1041:1-24. [DOI: 10.1016/j.aca.2018.07.060] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/20/2018] [Accepted: 07/24/2018] [Indexed: 12/27/2022]
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12
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Zhao R, Liu X, Yang X, Jin B, Shao C, Kang W, Tang R. Nanomaterial-Based Organelles Protect Normal Cells against Chemotherapy-Induced Cytotoxicity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1801304. [PMID: 29761566 DOI: 10.1002/adma.201801304] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 03/26/2018] [Indexed: 06/08/2023]
Abstract
Chemotherapy-induced cytotoxicity in normal cells and organs triggers undesired lesions. Although targeted delivery is used extensively, more than half of the chemotherapy dose still concentrates in normal tissues, especially in the liver. Enabling normal cells or organs to defend against cytotoxicity represents an alternative method for improving chemotherapy. Herein, rationally designed nanomaterials are used as artificial organelles to remove unexpected cytotoxicity in normal cells. Nanocomposites of gold-oligonucleotides (Au-ODN) can capture intracytoplasmic doxorubicin (DOX), a standard chemotherapy drug, blocking the drug's access into the cell nucleus. Cells with implanted Au-ODN are more robust since their viability is maintained during DOX treatment. In vivo experiments confirm that the Au-ODN nanomaterials selectively concentrate in hepatocytes and eliminate DOX-induced hepatotoxicity, increasing the cell's capacity to resist the threatening chemotherapeutic milieu. The finding suggests that introducing functional materials as biological devices into living systems may be a new strategy for improving the regulation of cell fate in more complex conditions and for manufacturing super cells.
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Affiliation(s)
- Ruibo Zhao
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
| | - Xueyao Liu
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
| | - Xinyan Yang
- Institute of Biological Engineering, Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang, 310013, China
| | - Biao Jin
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
| | - Changyu Shao
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
| | - Weijia Kang
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
| | - Ruikang Tang
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang, 310027, China
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13
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Baetsen-Young AM, Vasher M, Matta LL, Colgan P, Alocilja EC, Day B. Direct colorimetric detection of unamplified pathogen DNA by dextrin-capped gold nanoparticles. Biosens Bioelectron 2018; 101:29-36. [DOI: 10.1016/j.bios.2017.10.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 09/22/2017] [Accepted: 10/03/2017] [Indexed: 02/05/2023]
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14
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Marczak S, Smith E, Senapati S, Chang HC. Selectivity enhancements in gel-based DNA-nanoparticle assays by membrane-induced isotachophoresis: thermodynamics versus kinetics. Electrophoresis 2017; 38:2592-2602. [PMID: 28726313 DOI: 10.1002/elps.201700146] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 07/10/2017] [Accepted: 07/14/2017] [Indexed: 12/17/2022]
Abstract
Selectivity against mutant nontargets with a few mismatches remains challenging in nucleic acid sensing. Sensitivity enhancement by analyte concentration does not improve selectivity because it affects targets and nontargets equally. Hydrodynamic or electrical shear enhanced selectivity is often accompanied by substantial losses in target signals, thereby leading to poor limits of detection. We introduce a platform based on depletion isotachophoresis in agarose gel generated by an ion-selective membrane that allows both selectivity and sensitivity enhancement with a two-step assay involving concentration polarization at an ion-selective membrane. By concentrating both the targets and probe-functionalized nanoparticles by ion enrichment at the membrane, the effective thermodynamic dissociation constant is lowered from 40 nM to below 500 pM, and the detection limit is 10 pM as reported previously. A dynamically optimized ion depletion front is then generated from the membrane with a high electrical shear force to selectively and irreversibly dehybridize nontargets. The optimized selectivity against a two-mismatch nontarget (in a 35-base pairing sequence) is shown to be better than the thermodynamic equilibrium selectivity by more than a hundred-fold, such that there is no detectable signal from the two-mismatch nontarget. We offer empirical evidence that irreversible cooperative dehybridization plays an important role in this kinetic selectivity enhancement and that mismatch location controls the optimum selectivity even when there is little change in the corresponding thermodynamic dissociation constant.
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Affiliation(s)
- Steven Marczak
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Elaine Smith
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Satyajyoti Senapati
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Hsueh-Chia Chang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
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15
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Zhong D, Yang K, Wang Y, Yang X. Dual-channel sensing strategy based on gold nanoparticles cooperating with carbon dots and hairpin structure for assaying RNA and DNA. Talanta 2017; 175:217-223. [PMID: 28841982 DOI: 10.1016/j.talanta.2017.07.035] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/08/2017] [Accepted: 07/13/2017] [Indexed: 12/19/2022]
Abstract
By employing the attractive performance of fluorescent carbon dots and the assistant of hairpin structure, an innovative dual-channel biosensor on the basis of gold nanoparticles (AuNPs) for detecting multiple nucleotide sequences has been successfully proposed. In brief, the fluorescence of carbon dots (CDs) was quenched in the absence of the targets, and the hairpin structure was hybridized with the AuNPs-DNA and resulted in recovering the fluorescence. Instead, the presence of breast cancer (BRCA1) RNA/DNA could specifically bind with its contrary sequence to release the CDs from AuNPs, hence leading to the fluorescence recovery as a positive signal. Again, the hairpin structure can be released in the presence of thymidine kinase (TK1) RNA/DNA, thus induced a fluorescence quenching accordingly. Subsequently, the prepared sensing model was applied to detect BRCA1 RNA/DNA respectively accompanied with a linear range of 4-120nM as well as a detection limit of 1.5nM and 2.1nM, and 10-120nM as well as a detection limit of 3.6nM and 4.5nM for TK1 RNA/DNA respectively. More importantly, this sensing model could assay any possible gene sequence or aptamer-substrate complexes by appropriately programming.
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Affiliation(s)
- Dan Zhong
- College of Pharmaceutical Sciences, State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Kuncheng Yang
- College of Pharmaceutical Sciences, State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Yingyi Wang
- College of Pharmaceutical Sciences, State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Xiaoming Yang
- College of Pharmaceutical Sciences, State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
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16
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Liu B, Liu J. Freezing Directed Construction of Bio/Nano Interfaces: Reagentless Conjugation, Denser Spherical Nucleic Acids, and Better Nanoflares. J Am Chem Soc 2017; 139:9471-9474. [DOI: 10.1021/jacs.7b04885] [Citation(s) in RCA: 200] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Biwu Liu
- 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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17
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Induced nanoparticle aggregation for short nucleic acid quantification by depletion isotachophoresis. Biosens Bioelectron 2016; 86:840-848. [DOI: 10.1016/j.bios.2016.07.093] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/31/2016] [Accepted: 07/26/2016] [Indexed: 12/21/2022]
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18
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Synthesis and application of biocompatible gold corepoly-(l-Lysine) shell nanoparticles. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.07.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Nordin N, Yusof NA, Abdullah J, Radu S, Hushiarian R. Sensitive detection of multiple pathogens using a single DNA probe. Biosens Bioelectron 2016; 86:398-405. [PMID: 27414245 DOI: 10.1016/j.bios.2016.06.077] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 06/22/2016] [Accepted: 06/26/2016] [Indexed: 10/21/2022]
Abstract
A simple but promising electrochemical DNA nanosensor was designed, constructed and applied to differentiate a few food-borne pathogens. The DNA probe was initially designed to have a complementary region in Vibrio parahaemolyticus (VP) genome and to make different hybridization patterns with other selected pathogens. The sensor was based on a screen printed carbon electrode (SPCE) modified with polylactide-stabilized gold nanoparticles (PLA-AuNPs) and methylene blue (MB) was employed as the redox indicator binding better to single-stranded DNA. The immobilization and hybridization events were assessed using differential pulse voltammetry (DPV). The fabricated biosensor was able to specifically distinguish complementary, non-complementary and mismatched oligonucleotides. DNA was measured in the range of 2.0×10(-9)-2.0×10(-13)M with a detection limit of 5.3×10(-12)M. The relative standard deviation for 6 replications of DPV measurement of 0.2µM complementary DNA was 4.88%. The fabricated DNA biosensor was considered stable and portable as indicated by a recovery of more than 80% after a storage period of 6 months at 4-45°C. Cross-reactivity studies against various food-borne pathogens showed a reliably sensitive detection of VP.
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Affiliation(s)
- Noordiana Nordin
- Institute of Advanced Technology, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor, Malaysia; Food Safety Research Centre, Faculty of Food Science and Technology, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor, Malaysia
| | - Nor Azah Yusof
- Institute of Advanced Technology, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor, Malaysia; Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor, Malaysia.
| | - Jaafar Abdullah
- Institute of Advanced Technology, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor, Malaysia; Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor, Malaysia
| | - Son Radu
- Food Safety Research Centre, Faculty of Food Science and Technology, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor, Malaysia
| | - Roozbeh Hushiarian
- La Trobe Institute for Molecular Science, La Trobe University, Victoria 3086, Australia.
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20
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Rehman A, Sarwar Y, Raza ZA, Hussain SZ, Mustafa T, Khan WS, Ghauri MA, Haque A, Hussain I. Metal nanoparticle assisted polymerase chain reaction for strain typing of Salmonella Typhi. Analyst 2016; 140:7366-72. [PMID: 26381602 DOI: 10.1039/c5an01286d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Salmonella enterica serotype Typhi (S. Typhi) is the causative agent of typhoid fever and remains a major health threat in most of the developing countries. The prompt diagnosis of typhoid directly from the patient's blood requires high level of sensitivity and specificity. Some of us were the first to report PCR based diagnosis of typhoid. This approach has since then been reported by many scientists using different genomic targets. Since the number of bacteria circulating in the blood of a patient can be as low as 0.3 cfu ml(-1), there is always a room for improvement in diagnostic PCR. In the present study, the role of different types of nanoparticles was investigated to improve the existing PCR based methods for diagnosis and strain typing of S. Typhi (targeting Variable Number of Tandem Repeats [VNTR]) by using optimized PCR systems. Three different types of nanoparticles were used i.e., citrate stabilized gold nanoparticles, rhamnolipid stabilized gold and silver nanoparticles, and magnetic iron oxide nanoparticles. The non-specific amplification was significantly reduced in VNTR typing when gold and silver nanoparticles were used in an appropriate concentration. More importantly, the addition of nanoparticles decreased the non-specificity to a significant level in the case of multiplex PCR thus further validating the reliability of PCR for the diagnosis of typhoid.
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Affiliation(s)
- Asma Rehman
- Nanobiotech Group, National Institute for Biotechnology & Genetic Engineering (NIBGE), Jhang Road, Faisalabad, Pakistan
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21
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Sedighi A, Li PCH. High-Throughput DNA Array for SNP Detection of KRAS Gene Using a Centrifugal Microfluidic Device. Methods Mol Biol 2016; 1368:133-141. [PMID: 26614073 DOI: 10.1007/978-1-4939-3136-1_10] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Here, we describe detection of single nucleotide polymorphism (SNP) in genomic DNA samples using a NanoBioArray (NBA) chip. Fast DNA hybridization is achieved in the chip when target DNAs are introduced to the surface-arrayed probes using centrifugal force. Gold nanoparticles (AuNPs) are used to assist SNP detection at room temperature. The parallel setting of sample introduction in the spiral channels of the NBA chip enables multiple analyses on many samples, resulting in a technique appropriate for high-throughput SNP detection. The experimental procedure, including chip fabrication, probe array printing, DNA amplification, hybridization, signal detection, and data analysis, is described in detail.
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Affiliation(s)
- Abootaleb Sedighi
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada, V5A 1S6
| | - Paul C H Li
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada, V5A 1S6.
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22
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John J, Thomas L, Kurian A, George SD. Enhanced heat diffusion in nanofluid via DNA mediated aggregation. RSC Adv 2016. [DOI: 10.1039/c6ra07855a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Thermal diffusivity increases with different shapes, concentration of gold nanoparticles and also with the addition of ssDNA while the addition of dsDNA found to be ineffective in causing any kind of change in the thermal diffusivity.
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Affiliation(s)
- Jisha John
- Photonics Lab
- Department of Physics
- Catholicate College
- Pathanamthitta
- India-689645
| | - Lincy Thomas
- Photonics Lab
- Department of Physics
- Catholicate College
- Pathanamthitta
- India-689645
| | - Achamma Kurian
- Photonics Lab
- Department of Physics
- Catholicate College
- Pathanamthitta
- India-689645
| | - Sajan D. George
- Centre for Applied Nanosciences
- Department of Atomic and Molecular Physics
- Manipal University
- Manipal
- India-576104
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23
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Abstract
The DNA microarray technology is currently a useful biomedical tool which has been developed for a variety of diagnostic applications. However, the development pathway has not been smooth and the technology has faced some challenges. The reliability of the microarray data and also the clinical utility of the results in the early days were criticized. These criticisms added to the severe competition from other techniques, such as next-generation sequencing (NGS), impacting the growth of microarray-based tests in the molecular diagnostic market.Thanks to the advances in the underlying technologies as well as the tremendous effort offered by the research community and commercial vendors, these challenges have mostly been addressed. Nowadays, the microarray platform has achieved sufficient standardization and method validation as well as efficient probe printing, liquid handling and signal visualization. Integration of various steps of the microarray assay into a harmonized and miniaturized handheld lab-on-a-chip (LOC) device has been a goal for the microarray community. In this respect, notable progress has been achieved in coupling the DNA microarray with the liquid manipulation microsystem as well as the supporting subsystem that will generate the stand-alone LOC device.In this chapter, we discuss the major challenges that microarray technology has faced in its almost two decades of development and also describe the solutions to overcome the challenges. In addition, we review the advancements of the technology, especially the progress toward developing the LOC devices for DNA diagnostic applications.
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Affiliation(s)
| | - Abootaleb Sedighi
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada, V5A 1S6
| | - Paul C H Li
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada, V5A 1S6.
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24
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Elder RM, Pfaendtner J, Jayaraman A. Effect of Hydrophobic and Hydrophilic Surfaces on the Stability of Double-Stranded DNA. Biomacromolecules 2015; 16:1862-9. [DOI: 10.1021/acs.biomac.5b00469] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Robert M. Elder
- U.S. Army Research
Laboratory, Aberdeen Proving
Ground, MD 21005, United States
- Department
of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80309, United States
| | - Jim Pfaendtner
- Department
of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Arthi Jayaraman
- Department
of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80309, United States
- Departments
of Chemical and Biomolecular Engineering and Materials Science and
Engineering, University of Delaware, Newark, Delaware 19716, United States
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