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Chakraborty S, Pramanik S, Shekhar S, Mukherjee S. Plasmon-emitter coupling in cytosine-rich hairpin DNA-templated silver nanoclusters: Thermal reversibility, white light emission, and dynamics inside live cells. J Chem Phys 2024; 160:154303. [PMID: 38624117 DOI: 10.1063/5.0200544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 03/31/2024] [Indexed: 04/17/2024] Open
Abstract
Bio-templated luminescent noble metal nanoclusters (NCs) have attracted great attention for their intriguing physicochemical properties. Continuous efforts are being made to prepare NCs with high fluorescence quantum yield (QY), good biocompatibility, and tunable emission properties for their widespread practical applications as new-generation environment-friendly photoluminescent materials in materials chemistry and biological systems. Herein, we explored the unique photophysical properties of silver nanoclusters (AgNCs) templated by cytosine-rich customized hairpin DNA. Our results indicate that a 36-nucleotide containing hairpin DNA with 20 cytosine (C20) in the loop can encapsulate photostable red-emitting AgNCs with an absolute QY of ∼24%. The luminescent properties in these DNA-templated AgNCs were found to be linked to the coupling between the surface plasmon and the emitter. These AgNCs exhibited excellent thermal sensitivity and were employed to produce high-quality white light emission with an impressive color rendering index of 90 in the presence of dansyl chloride. In addition, the as-prepared luminescent AgNCs possessing excellent biocompatibility can effectively mark the nuclear region of HeLa cells and can be employed as a luminescent probe to monitor the cellular dynamics at a single molecular resolution.
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Affiliation(s)
- Subhajit Chakraborty
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
| | - Srikrishna Pramanik
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
| | - Shashi Shekhar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
| | - Saptarshi Mukherjee
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
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2
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Martínez-Fernández L, Kohl FR, Zhang Y, Ghosh S, Saks AJ, Kohler B. Triplet Excimer Formation in a DNA Duplex with Silver Ion-Mediated Base Pairs. J Am Chem Soc 2024; 146:1914-1925. [PMID: 38215466 DOI: 10.1021/jacs.3c08793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
The dynamics of excited electronic states in self-assembled structures formed between silver(I) ions and cytosine-containing DNA strands or monomeric cytosine derivatives were investigated by time-resolved infrared (TRIR) spectroscopy and quantum mechanical calculations. The steady-state and time-resolved spectra depend sensitively on the underlying structures, which change with pH and the nucleobase and silver ion concentrations. At pH ∼ 4 and low dC20 strand concentration, an intramolecularly folded i-motif is observed, in which protons, and not silver ions, mediate C-C base pairing. However, at the higher strand concentrations used in the TRIR measurements, dC20 strands associate pairwise to yield duplex structures containing C-Ag+-C base pairs with a high degree of propeller twisting. UV excitation of the silver ion-mediated duplex produces a long-lived excited state, which we assign to a triplet excimer state localized on a pair of stacked cytosines. The computational results indicate that the propeller-twisted motifs induced by metal-ion binding are responsible for the enhanced intersystem crossing that populates the triplet state and not a generic heavy atom effect. Although triplet excimer states have been discussed frequently as intermediates in the formation of cyclobutane pyrimidine dimers, we find neither computational nor experimental evidence for cytosine-cytosine photoproduct formation in the systems studied. These findings provide a rare demonstration of a long-lived triplet excited state that is formed in a significant yield in a DNA duplex, demonstrating that supramolecular structural changes induced by metal ion binding profoundly affect DNA photophysics.
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Affiliation(s)
- Lara Martínez-Fernández
- Departamento de Química, Facultad de Ciencias and Institute for Advanced Research in Chemical Science (IADCHEM), Universidad Autónoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco, 28049 Madrid, Spain
| | - Forrest R Kohl
- Department of Chemistry and Biochemistry, 100 West 18th Avenue, Columbus, 43210 Ohio, United States
| | - Yuyuan Zhang
- Department of Chemistry and Biochemistry, 100 West 18th Avenue, Columbus, 43210 Ohio, United States
| | - Supriya Ghosh
- Department of Chemistry and Biochemistry, 100 West 18th Avenue, Columbus, 43210 Ohio, United States
| | - Andrew J Saks
- Department of Chemistry and Biochemistry, 100 West 18th Avenue, Columbus, 43210 Ohio, United States
| | - Bern Kohler
- Department of Chemistry and Biochemistry, 100 West 18th Avenue, Columbus, 43210 Ohio, United States
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3
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Danai L, Rolband LA, Perdomo VA, Skelly E, Kim T, Afonin KA. Optical, structural and antibacterial properties of silver nanoparticles and DNA-templated silver nanoclusters. Nanomedicine (Lond) 2023; 18:769-782. [PMID: 37345552 PMCID: PMC10308257 DOI: 10.2217/nnm-2023-0082] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/06/2023] [Indexed: 06/23/2023] Open
Abstract
Silver nanoparticles (AgNPs) are increasingly considered for biomedical applications as drug-delivery carriers, imaging probes and antibacterial agents. Silver nanoclusters (AgNCs) represent another subclass of nanoscale silver. AgNCs are a promising tool for nanomedicine due to their small size, structural homogeneity, antibacterial activity and fluorescence, which arises from their molecule-like electron configurations. The template-assisted synthesis of AgNCs relies on organic molecules that act as polydentate ligands. In particular, single-stranded nucleic acids reproducibly scaffold AgNCs to provide fluorescent, biocompatible materials that are incorporable in other formulations. This mini review outlines the design and characterization of AgNPs and DNA-templated AgNCs, discusses factors that affect their physicochemical and biological properties, and highlights applications of these materials as antibacterial agents and biosensors.
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Affiliation(s)
- Leyla Danai
- Department of Chemistry, Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Lewis A Rolband
- Department of Chemistry, Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | | | - Elizabeth Skelly
- Department of Chemistry, Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Taejin Kim
- Physical Sciences Department, West Virginia University Institute of Technology, Beckley, WV 25801, USA
| | - Kirill A Afonin
- Department of Chemistry, Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
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4
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Pal C, Majumder S. Label-free electrochemical biosensor for ultra-low level detection of Ag(I) using ssDNA functionalized multi-walled carbon nanotube. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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5
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Mesoscopic model confirms strong base pair metal mediated bonding for T-Hg 2+-T and weaker for C-Ag +-C. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Kohl FR, Zhang Y, Charnay AP, Martínez-Fernández L, Kohler B. Ultrafast excited state dynamics of silver ion-mediated cytosine-cytosine base pairs in metallo-DNA. J Chem Phys 2021; 153:105104. [PMID: 32933288 DOI: 10.1063/5.0020463] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
To better understand the nexus between structure and photophysics in metallo-DNA assemblies, the parallel-stranded duplex formed by the all-cytosine oligonucleotide, dC20, and silver nitrate was studied by circular dichroism (CD), femtosecond transient absorption spectroscopy, and time-dependent-density functional theory calculations. Silver(I) ions mediate Cytosine-Cytosine (CC) base pairs by coordinating to the N3 atoms of two cytosines. Although these silver(I) mediated CC base pairs resemble the proton-mediated CC base pairs found in i-motif DNA at first glance, a comparison of experimental and calculated CD spectra reveals that silver ion-mediated i-motif structures do not form. Instead, the parallel-stranded duplex formed between dC20 and silver ions is proposed to contain consecutive silver-mediated base pairs with high propeller twist-like ones seen in a recent crystal structure of an emissive, DNA-templated silver cluster. Femtosecond transient absorption measurements with broadband probing from the near UV to the near IR reveal an unusually long-lived (>10 ns) excited state in the dC20 silver ion complex that is not seen in dC20 in single-stranded or i-motif forms. This state is also absent in a concentrated solution of cytosine-silver ion complexes that are thought to assemble into planar ribbons or sheets that lack stacked silver(I) mediated CC base pairs. The large propeller twist angle present in metal-mediated base pairs may promote the formation of long-lived charged separated or triplet states in this metallo-DNA.
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Affiliation(s)
- Forrest R Kohl
- Department of Chemistry and Biochemistry, 100 W. 18th Ave., Columbus, Ohio 43210, USA
| | - Yuyuan Zhang
- Department of Chemistry and Biochemistry, 100 W. 18th Ave., Columbus, Ohio 43210, USA
| | - Aaron P Charnay
- Department of Chemistry and Biochemistry, 100 W. 18th Ave., Columbus, Ohio 43210, USA
| | - Lara Martínez-Fernández
- Departamento de Química, Facultad de Ciencias and Institute for Advanced Research in Chemistry (IADCHEM), Universidad Autónoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco, 28049 Madrid, Spain
| | - Bern Kohler
- Department of Chemistry and Biochemistry, 100 W. 18th Ave., Columbus, Ohio 43210, USA
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Makkonen E, Rossi TP, Larsen AH, Lopez-Acevedo O, Rinke P, Kuisma M, Chen X. Real-time time-dependent density functional theory implementation of electronic circular dichroism applied to nanoscale metal-organic clusters. J Chem Phys 2021; 154:114102. [PMID: 33752382 DOI: 10.1063/5.0038904] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Electronic circular dichroism (ECD) is a powerful spectroscopy method for investigating chiral properties at the molecular level. ECD calculations with the commonly used linear-response time-dependent density functional theory (LR-TDDFT) framework can be prohibitively costly for large systems. To alleviate this problem, we present here an ECD implementation within the projector augmented-wave method in a real-time-propagation TDDFT framework in the open-source GPAW code. Our implementation supports both local atomic basis sets and real-space finite-difference representations of wave functions. We benchmark our implementation against an existing LR-TDDFT implementation in GPAW for small chiral molecules. We then demonstrate the efficiency of our local atomic basis set implementation for a large hybrid nanocluster and discuss the chiroptical properties of the cluster.
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Affiliation(s)
- Esko Makkonen
- Department of Applied Physics, Aalto University, Espoo, Finland
| | - Tuomas P Rossi
- Department of Applied Physics, Aalto University, Espoo, Finland
| | | | - Olga Lopez-Acevedo
- Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Medellín, Colombia
| | - Patrick Rinke
- Department of Applied Physics, Aalto University, Espoo, Finland
| | - Mikael Kuisma
- Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Xi Chen
- Department of Applied Physics, Aalto University, Espoo, Finland
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8
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Gonzàlez-Rosell A, Cerretani C, Mastracco P, Vosch T, Copp SM. Structure and luminescence of DNA-templated silver clusters. NANOSCALE ADVANCES 2021; 3:1230-1260. [PMID: 36132866 PMCID: PMC9417461 DOI: 10.1039/d0na01005g] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/21/2021] [Indexed: 05/05/2023]
Abstract
DNA serves as a versatile template for few-atom silver clusters and their organized self-assembly. These clusters possess unique structural and photophysical properties that are programmed into the DNA template sequence, resulting in a rich palette of fluorophores which hold promise as chemical and biomolecular sensors, biolabels, and nanophotonic elements. Here, we review recent advances in the fundamental understanding of DNA-templated silver clusters (Ag N -DNAs), including the role played by the silver-mediated DNA complexes which are synthetic precursors to Ag N -DNAs, structure-property relations of Ag N -DNAs, and the excited state dynamics leading to fluorescence in these clusters. We also summarize the current understanding of how DNA sequence selects the properties of Ag N -DNAs and how sequence can be harnessed for informed design and for ordered multi-cluster assembly. To catalyze future research, we end with a discussion of several opportunities and challenges, both fundamental and applied, for the Ag N -DNA research community. A comprehensive fundamental understanding of this class of metal cluster fluorophores can provide the basis for rational design and for advancement of their applications in fluorescence-based sensing, biosciences, nanophotonics, and catalysis.
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Affiliation(s)
- Anna Gonzàlez-Rosell
- Department of Materials Science and Engineering, University of California Irvine California 92697-2585 USA
| | - Cecilia Cerretani
- Nanoscience Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5 2100 Copenhagen Denmark
| | - Peter Mastracco
- Department of Materials Science and Engineering, University of California Irvine California 92697-2585 USA
| | - Tom Vosch
- Nanoscience Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5 2100 Copenhagen Denmark
| | - Stacy M Copp
- Department of Materials Science and Engineering, University of California Irvine California 92697-2585 USA
- Department of Physics and Astronomy, University of California Irvine California 92697-4575 USA
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9
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Theoretical studies on the electronic and optoelectronic properties of DNA/RNA hybrid-metal complexes. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.115015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Kliuev PN, Sokolov PA, Ramazanov RR. QM/MM-MD dissociation of Ag+ and H+ mediated cytosine pairs: Monomers and dimers. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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11
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Frańska M, Konował E. Unexpected cytosine-AuCl 4- interaction under electrospray ionization mass spectrometry conditions-Formation of cytosine-Au(I) complexes. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2020; 26:225-229. [PMID: 31801025 DOI: 10.1177/1469066719893233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The interaction of cytosine with AuCl4-, under electrospray ionization mass spectrometric conditions, is discussed. On the basis of respective full scan mass spectra and product ion spectra, obtained in positive and negative ion mode, it has been deduced that cytosine is very prone to form Au(I)-containing complexes. The complexes may be formed in the gas phase by decomposition of Au(III)-containing complexes and also in the electrospray ionization source as a result of the occurrence of redox process. It has also been found that the interaction of cytosine with Au+ is stronger than that with Cu+ or Ag+, although taking into account the electrostatic attraction, it is not expected.
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Affiliation(s)
- Magdalena Frańska
- Institute of Chemistry and Technical Electrochemistry, Poznań University of Technology, Berdychowo, Poznań, Poland
| | - Emilia Konował
- Institute of Chemistry and Technical Electrochemistry, Poznań University of Technology, Berdychowo, Poznań, Poland
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12
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Zheng MH, Bigdeli F, Gao LX, Wu DZ, Yan XW, Hu ML, Morsali A. Synthesis, Characterization and DNA Binding Investigations of a New Binuclear Ag(I) Complex and Evaluation of Its Anticancer Property. Int J Nanomedicine 2020; 15:953-964. [PMID: 32103949 PMCID: PMC7024786 DOI: 10.2147/ijn.s225038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 01/27/2020] [Indexed: 01/24/2023] Open
Abstract
Aim A new Ag(I) complex (A3) was synthesized and evaluated for its anticancer activity against human cancer cell lines. Materials and Methods The complex A3 was characterized by 1H, 13C, and 31P nuclear magnetic resonance (NMR), infrared (IR) spectra, elemental analysis, and X-ray crystallography. The interaction of the complex with CT-DNA was studied by electronic absorption spectra, fluorescence spectroscopy, and cyclic voltammetry; cell viability (%) was assessed by absorbance measurement of the samples. Results The interaction mode of the complex A3 with DNA is electrostatic, and this complex shows good potential in anticancer properties against HCT 116 (human colorectal cancer cells) and MDA-MB-231 (MD Anderson-metastatic breast) cell lines with 0.5 micromolar concentrations. Conclusion The Ag(I) complex could interact with DNA noncovalently and has anticancer properties.
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Affiliation(s)
- Mian-Hong Zheng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Fahime Bigdeli
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran, Iran
| | - Lan-Xing Gao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Deng-Ze Wu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Xiao-Wei Yan
- College of Materials and Chemical Engineering, and Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou, Guangxi 542800, People's Republic of China
| | - Mao-Lin Hu
- College of Materials and Chemical Engineering, and Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou, Guangxi 542800, People's Republic of China
| | - Ali Morsali
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran, Iran
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Naskar S, Guha R, Müller J. Metal-Modified Nucleic Acids: Metal-Mediated Base Pairs, Triples, and Tetrads. Angew Chem Int Ed Engl 2019; 59:1397-1406. [PMID: 31259475 DOI: 10.1002/anie.201905913] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Indexed: 01/02/2023]
Abstract
The incorporation of metal ions into nucleic acids by means of metal-mediated base pairs represents a promising and prominent strategy for the site-specific decoration of these self-assembling supramolecules with metal-based functionality. Over the past 20 years, numerous nucleoside surrogates have been introduced in this respect, broadening the metal scope by providing perfectly tailored metal-binding sites. More recently, artificial nucleosides derived from natural purine or pyrimidine bases have moved into the focus of AgI -mediated base pairing, due to their expected compatibility with regular Watson-Crick base pairs. This minireview summarizes these advances in metal-mediated base pairing but also includes further recent progress in the field. Moreover, it addresses other aspects of metal-modified nucleic acids, highlighting an expansion of the concept to metal-mediated base triples (in triple helices and three-way junctions) and metal-mediated base tetrads (in quadruplexes). For all types of metal-modified nucleic acids, proposed or accomplished applications are briefly mentioned, too.
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Affiliation(s)
- Shuvankar Naskar
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149, Münster, Germany
| | - Rweetuparna Guha
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149, Münster, Germany
| | - Jens Müller
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149, Münster, Germany
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14
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Naskar S, Guha R, Müller J. Metallmodifizierte Nukleinsäuren: Metallvermittelte Basenpaare, ‐tripel und ‐tetraden. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905913] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Shuvankar Naskar
- Institut für Anorganische und Analytische Chemie Westfälische Wilhelms-Universität Münster Corrensstraße 30 48149 Münster Deutschland
| | - Rweetuparna Guha
- Institut für Anorganische und Analytische Chemie Westfälische Wilhelms-Universität Münster Corrensstraße 30 48149 Münster Deutschland
| | - Jens Müller
- Institut für Anorganische und Analytische Chemie Westfälische Wilhelms-Universität Münster Corrensstraße 30 48149 Münster Deutschland
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Zhou X, Kondhare D, Leonard P, Seela F. Anomeric 5-Aza-7-deaza-2'-deoxyguanosines in Silver-Ion-Mediated Homo and Hybrid Base Pairs: Impact of Mismatch Structure, Helical Environment, and Nucleobase Substituents on DNA Stability. Chemistry 2019; 25:10408-10419. [PMID: 31062885 DOI: 10.1002/chem.201901276] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/30/2019] [Indexed: 12/13/2022]
Abstract
Nucleoside configuration (α-d vs. β-d), nucleobase substituents, and the helical DNA environment of silver-mediated 5-aza-7-deazaguanine-cytosine base pairs have a strong impact on DNA stability. This has been demonstrated by investigations on oligonucleotide duplexes with silver-mediated base pairs of α-d and β-d anomeric 5-aza-7-deaza-2'-deoxyguanosines and anomeric 2'-deoxycytidines incorporated in 12-mer duplexes. To this end, a new synthetic protocol has been developed to access the pure anomers of 5-aza-7-deaza-2'-deoxyguanosine by glycosylation of either the protected nucleobase or its salt followed by separation of the glycosylation products by crystallization and chromatography. Thermal stability measurements were performed on duplexes with α-d/α-d and β-d/β-d homo base pairs or α-d/β-d and β-d/α-d hybrid pairs within two sequence environments, positions 6 or 7, of oligonucleotide duplexes. The respective Tm stability increases observed after silver ion addition differ significantly. Homo base pairs with β-d/β-d or α-d/α-d nucleoside combinations are more stable than α-d/β-d hybrid base pairs. The positional switch of silver-ion-mediated base pairs has a significant impact on stability. Nucleobase substituents introduced at the 5-position of the dC site of silver-mediated base pairs affect base pair stability to a minor extent. Our investigation might lead to applications in the construction of bioinspired nanodevices, in DNA diagnostics, or metal-DNA hybrid materials.
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Affiliation(s)
- Xinglong Zhou
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Westfälische Wilhelms-Universität Münster, Heisenbergstrasse 11, 48149, Münster, Germany
| | - Dasharath Kondhare
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Westfälische Wilhelms-Universität Münster, Heisenbergstrasse 11, 48149, Münster, Germany
| | - Peter Leonard
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Westfälische Wilhelms-Universität Münster, Heisenbergstrasse 11, 48149, Münster, Germany
| | - Frank Seela
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Westfälische Wilhelms-Universität Münster, Heisenbergstrasse 11, 48149, Münster, Germany.,Laboratorium für Organische und Bioorganische Chemie, Institut für Chemie neuer Materialien, Universität Osnabrück, Barbarastrasse 7, 49069, Osnabrück, Germany
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17
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Bhattacharyya T, Chaudhuri R, Das KS, Mondal R, Mandal S, Dash J. Cytidine-Derived Hydrogels with Tunable Antibacterial Activities. ACS APPLIED BIO MATERIALS 2019; 2:3171-3177. [DOI: 10.1021/acsabm.9b00438] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tanima Bhattacharyya
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Ritapa Chaudhuri
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Krishna Sundar Das
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Raju Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | | | - Jyotirmayee Dash
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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18
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Schultz D, Brinson RG, Sari N, Fagan JA, Bergonzo C, Lin NJ, Dunkers JP. Structural insights into DNA-stabilized silver clusters. SOFT MATTER 2019; 15:4284-4293. [PMID: 31094392 PMCID: PMC11204197 DOI: 10.1039/c9sm00198k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Despite their great promise as fluorescent biological probes and sensors, the structure and dynamics of Ag complexes derived from single stranded DNA (ssDNA) are less understood than their double stranded counterparts. In this work, we seek new insights into the structure of single AgNssDNA clusters using analytical ultracentrifugation (AUC), nuclear magnetic resonance spectroscopy, infrared spectroscopy and molecular dynamics simulations (MD) of a fluorescent (AgNssDNA)8+ nanocluster. The results suggest that the purified (AgNssDNA)8+ nanocluster is a mixture of predominantly Ag15 and Ag16 species that prefer two distinct long-lived conformational states: one extended, the other approaching spherical. However, the ssDNA strands within these clusters are highly mobile. Ag(i) interacts preferentially with the nucleobase rather than the phosphate backbone, causing a restructuring of the DNA strand relative to the bare DNA. Infrared spectroscopy and MD simulations of (AgNssDNA)8+ and model nucleic acid homopolymers suggest that Ag(i) has a higher affinity for cytosine over guanine bases, little interaction with adenine, and virtually none with thymine. Ag(i) shows a tendency to interact with cytosine N3 and O2 and guanine N7 and O6, opening the possibility for a Ag(i)-base bifurcated bond to act as a nanocluster nucleation and strand stabilizing site. This work provides valuable insight into nanocluster structure and dynamics which drive stability and optical properties, and additional studies using these types of characterization techniques are important for the rational design of single stranded AgDNA nanocluster sensors.
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Affiliation(s)
- Danielle Schultz
- Biomaterials Group, Biosystems and Biomaterials Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland, USA.
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Mistry L, El-Zubir O, Dura G, Clegg W, Waddell PG, Pope T, Hofer WA, Wright NG, Horrocks BR, Houlton A. Addressing the properties of "Metallo-DNA" with a Ag(i)-mediated supramolecular duplex. Chem Sci 2019; 10:3186-3195. [PMID: 30996900 PMCID: PMC6429620 DOI: 10.1039/c8sc05103h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 02/08/2019] [Indexed: 01/04/2023] Open
Abstract
The silver-nucleoside complex [Ag(i)-(N3-cytidine)2]+, 1, self-assembles to form a supramolecular metal-mediated base-pair array highly analogous to those seen in metallo-DNA.
The silver-nucleoside complex [Ag(i)-(N3-cytidine)2], 1, self-assembles to form a supramolecular metal-mediated base-pair array highly analogous to those seen in metallo-DNA. A combination of complementary hydrogen-bonding, hydrophobic and argentophilic interactions drive the formation of a double-helix with a continuous silver core. Electrical measurements on 1 show that despite having Ag···Ag distances within <5% of the metallic radii, the material is electrically insulating. This is due to the electronic structure which features a filled valence band, an empty conduction band dominated by the ligand, and a band gap of 2.5 eV. Hence, as-prepared, such Ag(i)-DNA systems should not be considered molecular nanowires but, at best, proto-wires. The structural features seen in 1 are essentially retained in the corresponding organogel which exhibits thixotropic self-healing that can be attributed to the reversible nature of the intermolecular interactions. Photo-reduced samples of the gel exhibit luminescence confirming that these poly-cytidine sequences appropriately pre-configure silver ions for the formation of quantum-confined metal clusters in line with contemporary views on DNA-templated clusters. Microscopy data reveals the resulting metal cluster/particles are approximately spherical and crystalline with lattice spacing (111) similar to bulk Ag.
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Affiliation(s)
- Liam Mistry
- Chemical Nanoscience Laboratory , School of Natural & Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU , UK .
| | - Osama El-Zubir
- Chemical Nanoscience Laboratory , School of Natural & Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU , UK .
| | - Gema Dura
- Chemical Nanoscience Laboratory , School of Natural & Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU , UK .
| | - William Clegg
- Chemistry , School of Natural & Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU , UK
| | - Paul G Waddell
- Chemistry , School of Natural & Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU , UK
| | - Thomas Pope
- Chemistry , School of Natural & Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU , UK
| | - Werner A Hofer
- Chemistry , School of Natural & Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU , UK
| | - Nick G Wright
- School of Engineering , Newcastle University , Newcastle upon Tyne , NE1 7RU , UK
| | - Benjamin R Horrocks
- Chemical Nanoscience Laboratory , School of Natural & Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU , UK .
| | - Andrew Houlton
- Chemical Nanoscience Laboratory , School of Natural & Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU , UK .
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20
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Linares F, García-Fernández E, López-Garzón FJ, Domingo-García M, Orte A, Rodríguez-Diéguez A, Galindo MA. Multifunctional behavior of molecules comprising stacked cytosine-Ag I-cytosine base pairs; towards conducting and photoluminescence silver-DNA nanowires. Chem Sci 2019; 10:1126-1137. [PMID: 30774910 PMCID: PMC6346629 DOI: 10.1039/c8sc04036b] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 11/04/2018] [Indexed: 12/20/2022] Open
Abstract
DNA molecules containing a 1D silver array may be applied for nanotechnology applications, but first their conducting and photoluminescence behavior must be enhanced. Here we have synthesized and characterized three new helical compounds based on stacked silver-mediated cytosine base pairs [Ag(mC)2]X (mC = N1-methylcytosine; X = NO3 (1), BF4 (2) and ClO4 (3)), that contain uninterrupted polymeric AgI chains that run through the center of the helixes, comparable to related silver-DNA structures. The exposure of nanostructures of [Ag(mC)2]BF4 (2) to cold hydrogen plasma stimulates the reduction of the prearranged AgI polymeric chains to metallic silver along the material. This solvent-free reduction strategy leads to the compound [AgI(mC)2]X@Ag0 (2H) that contains uniformly well-distributed silver metallic nanostructures that are responsible for the new conducting and photoluminescence properties of the material. The presence of silver nanostructures alongside compound 2H has been evaluated by means of X-ray photoelectron spectroscopy (XPS), UV-vis spectroscopy, and X-ray powder diffraction (XRPD). The conducting and photoactive properties of 2H were studied by electrostatic force microscopy (EFM) and conducting-AFM (c-AFM), and photoluminescence microscopy (PL), respectively. The results demonstrate that the presence of well-organized metallic silver nanoentities on the material is responsible for the novel conductivity and photoactive properties of the material. This methodology can be employed for the generation of multifunctional silver-DNA related materials with tailored properties.
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Affiliation(s)
- Fátima Linares
- Unidad de Microscopía de Fuerza Atómica , Centro de Instrumentación Científica , Universidad de Granada , Paseo Prof. Juan Osorio s/n , 18003 , Granada , Spain .
| | - Emilio García-Fernández
- Departamento de Fisicoquímica , Facultad de Farmacia , Universidad de Granada , Campus Cartuja , 18071 , Granada , Spain
| | - F Javier López-Garzón
- Departamento de Química Inorgánica , Facultad de Ciencias , Universidad de Granada , Avd. Fuentenueva s/n , 18071 , Granada , Spain .
| | - María Domingo-García
- Departamento de Química Inorgánica , Facultad de Ciencias , Universidad de Granada , Avd. Fuentenueva s/n , 18071 , Granada , Spain .
| | - Angel Orte
- Departamento de Fisicoquímica , Facultad de Farmacia , Universidad de Granada , Campus Cartuja , 18071 , Granada , Spain
| | - Antonio Rodríguez-Diéguez
- Departamento de Química Inorgánica , Facultad de Ciencias , Universidad de Granada , Avd. Fuentenueva s/n , 18071 , Granada , Spain .
| | - Miguel A Galindo
- Departamento de Química Inorgánica , Facultad de Ciencias , Universidad de Granada , Avd. Fuentenueva s/n , 18071 , Granada , Spain .
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21
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Swasey SM, Rosu F, Copp SM, Gabelica V, Gwinn EG. Parallel Guanine Duplex and Cytosine Duplex DNA with Uninterrupted Spines of Ag I-Mediated Base Pairs. J Phys Chem Lett 2018; 9:6605-6610. [PMID: 30380874 DOI: 10.1021/acs.jpclett.8b02851] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Hydrogen bonding between nucleobases produces diverse DNA structural motifs, including canonical duplexes, guanine (G) quadruplexes, and cytosine (C) i-motifs. Incorporating metal-mediated base pairs into nucleic acid structures can introduce new functionalities and enhanced stabilities. Here we demonstrate, using mass spectrometry (MS), ion mobility spectrometry (IMS), and fluorescence resonance energy transfer (FRET), that parallel-stranded structures consisting of up to 20 G-AgI-G contiguous base pairs are formed when natural DNA sequences are mixed with silver cations in aqueous solution. FRET indicates that duplexes formed by poly(cytosine) strands with 20 contiguous C-AgI-C base pairs are also parallel. Silver-mediated G-duplexes form preferentially over G-quadruplexes, and the ability of Ag+ to convert G-quadruplexes into silver-paired duplexes may provide a new route to manipulating these biologically relevant structures. IMS indicates that G-duplexes are linear and more rigid than B-DNA. DFT calculations were used to propose structures compatible with the IMS experiments. Such inexpensive, defect-free, and soluble DNA-based nanowires open new directions in the design of novel metal-mediated DNA nanotechnology.
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Affiliation(s)
- Steven M Swasey
- Department of Chemistry and Biochemistry , Univerisity of California Santa Barbara , Santa Barbara , California 93117 , United States
| | - Frédéric Rosu
- Institut Européen de Chimie et Biologie , Université de Bordeaux, CNRS & Inserm (IECB, UMS3033, US001) , 2 rue Robert Escarpit , 33607 Pessac , France
| | - Stacy M Copp
- Center for Integrated Nanotechnologies , Los Alamos National Laboratories , Los Alamos , New Mexico 87545 , United States
| | - Valérie Gabelica
- Laboratoire Acides Nucléiques: Régulations Naturelle et Artificielle , Université de Bordeaux, Inserm & CNRS (ARNA, U1212, UMR5320), IECB , 2 rue Robert Escarpit , 33607 Pessac , France
| | - Elisabeth G Gwinn
- Department of Physics , Univerisity of California Santa Barbara , Santa Barbara , California 93117 , United States
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22
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Chen X, Makkonen E, Golze D, Lopez-Acevedo O. Silver-Stabilized Guanine Duplex: Structural and Optical Properties. J Phys Chem Lett 2018; 9:4789-4794. [PMID: 30079734 DOI: 10.1021/acs.jpclett.8b01908] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Recent experimental duplexes of DNA stabilized by Ag cations, pairing homostrands of guanine-guanine, cytosine-cytosine, adenine-thymine, and thymine-thymine, display much higher stability than the Watson-Crick paired DNA duplexes; these broaden the range of applications for DNA nanotechnology. Here we focus on silver-stabilized guanine duplexes in water. Using hybrid quantum mechanics/molecular mechanics simulations, we propose an atomic structure for the Ag+-mediated guanine duplex with two nucleobases per strand, G2-Ag2+-G2. We then compare experimental and time-dependent density functional theory-simulated electronic circular dichroism (ECD) spectra to validate our results. Both experimental and simulated ECD share two negative peaks around 220 and 280 nm, with no positive signal in the measured wavelength range. We found that the left- or right-handed disposition of bases in the structure has a decisive effect on the signs of the ECD. We conclude that G2-Ag2+-G2 is left-hand-oriented, and extrapolation of this orientation to longer strands gives rise to a left-hand-oriented parallel helix stabilized by interplanar H bonds.
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Affiliation(s)
- Xi Chen
- Department of Applied Physics , Aalto University , Otakaari 1 , FI-02150 Espoo , Finland
| | - Esko Makkonen
- Department of Applied Physics , Aalto University , Otakaari 1 , FI-02150 Espoo , Finland
| | - Dorothea Golze
- Department of Applied Physics , Aalto University , Otakaari 1 , FI-02150 Espoo , Finland
- Department of Electrical Engineering and Automation , Aalto University , P.O. Box 13500, 00076 Aalto , Finland
| | - Olga Lopez-Acevedo
- Grupo de Física Atómica y Molecular, Instituto de Física, Facultad de Ciencias Exactas y Naturales , Universidad de Antioquia UdeA ; Calle 70 No. 52-21 , 050010 Medellín , Colombia
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23
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Optical Properties of Silver-Mediated DNA from Molecular Dynamics and Time Dependent Density Functional Theory. Int J Mol Sci 2018; 19:ijms19082346. [PMID: 30096923 PMCID: PMC6122091 DOI: 10.3390/ijms19082346] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/16/2018] [Accepted: 07/20/2018] [Indexed: 12/12/2022] Open
Abstract
We report a combined quantum mechanics/molecular mechanics (QM/MM) molecular dynamics and time-dependent density functional (TDDFT) study of metal-mediated deoxyribonucleic acid (M-DNA) nanostructures. For the Ag+-mediated guanine tetramer, we found the maug-cc-pvdz basis set to be sufficient for calculating electronic circular dichroism (ECD) spectra. Our calculations further show that the B3LYP, CAM-B3LYP, B3LYP*, and PBE exchange-correlation functionals are all able to predict negative peaks in the measured ECD spectra within a 20 nm range. However, a spurious positive peak is present in the CAM-B3LYP ECD spectra. We trace the origins of this spurious peak and find that is likely due to the sensitivity of silver atoms to the amount of Hartree–Fock exchange in the exchange-correlation functional. Our presented approach provides guidance for future computational investigations of other Ag+-mediated DNA species.
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24
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Berdakin M, Taccone MI, Pino GA, Sánchez CG. DNA-protected silver emitters: charge dependent switching of fluorescence. Phys Chem Chem Phys 2018; 19:5721-5726. [PMID: 28230217 DOI: 10.1039/c6cp08345e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The relationship between the state of charge and spectroscopy of DNA-protected silver emitters is not yet well understood. This remains one of the major issues to unveil in order to fully disentangle the spectroscopic features of these novel systems. It is a well known fact that a fluorescence response arises upon chemical reduction of silver cations attached to DNA, leading to neutral (or partially oxidized) "bright" clusters. It is important to note that the absence of fluorescence in completely ionic complexes is universal in the sense that it does not depend on any experimental variable. This suggests that its origin may be founded on the nature of the interaction between DNA bases and silver cations. Nevertheless, to the best of our knowledge, no explanation exists for this charge dependent switching between dark completely ionic complexes and bright (neutral or partially oxidized) clusters. In this brief report we address this experimental fact on the basis of the electronic structure of the complex as a function of its charge and quantum dynamical simulations of the processes following photoexcitation. These data provide a dynamical picture of the correlation between charge and fluorescence.
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Affiliation(s)
- Matías Berdakin
- INFIQC (UNC-CONICET), Dpto. de Matemática y Física, Fac. de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Pabellón Argentina, 5000 Córdoba, Argentina.
| | - Martin I Taccone
- INFIQC (UNC-CONICET), Dpto. de Fisicoquímica, Fac. de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Pabellón Argentina, 5000 Córdoba, Argentina
| | - Gustavo A Pino
- INFIQC (UNC-CONICET), Dpto. de Fisicoquímica, Fac. de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Pabellón Argentina, 5000 Córdoba, Argentina
| | - Cristián G Sánchez
- INFIQC (UNC-CONICET), Dpto. de Matemática y Física, Fac. de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Pabellón Argentina, 5000 Córdoba, Argentina.
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25
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Jawiczuk M. A theoretical study on the hydrogen bond and stability of cytosine and thymine dimers. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2017.11.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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26
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Taccone MI, Berdakin M, Pino GA, Sánchez CG. Optical properties and charge distribution in rod-shape DNA–silver cluster emitters. Phys Chem Chem Phys 2018; 20:22510-22516. [DOI: 10.1039/c8cp03895c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Our results show that the experimental optical properties of DNA–Agn are theoretically reproduced by considering the zigzag rod-shape structure of the metal cluster.
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Affiliation(s)
- Martín I. Taccone
- Departamento de Fisicoquímica
- Fac. de Ciencias Químicas
- Universidad Nacional de Córdoba
- Ciudad Universitaria
- X5000HUA Córdoba
| | - Matías Berdakin
- Departamento de Física
- Facultad de Ciencias Físicas y Matemáticas
- Universidad de Chile
- Santiago
- Chile
| | - Gustavo A. Pino
- Departamento de Fisicoquímica
- Fac. de Ciencias Químicas
- Universidad Nacional de Córdoba
- Ciudad Universitaria
- X5000HUA Córdoba
| | - Cristián G. Sánchez
- INFIQC (CONICET)
- Ciudad Universitaria
- 5000 Córdoba
- Argentina
- Departamento de Química Teórica y Computacional
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27
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Müller J. Metal-mediated base pairs in parallel-stranded DNA. Beilstein J Org Chem 2017; 13:2671-2681. [PMID: 29564004 PMCID: PMC5753045 DOI: 10.3762/bjoc.13.265] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 11/29/2017] [Indexed: 01/03/2023] Open
Abstract
In nucleic acid chemistry, metal-mediated base pairs represent a versatile method for the site-specific introduction of metal-based functionality. In metal-mediated base pairs, the hydrogen bonds between complementary nucleobases are replaced by coordinate bonds to one or two transition metal ions located in the helical core. In recent years, the concept of metal-mediated base pairing has found a significant extension by applying it to parallel-stranded DNA duplexes. The antiparallel-stranded orientation of the complementary strands as found in natural B-DNA double helices enforces a cisoid orientation of the glycosidic bonds. To enable the formation of metal-mediated base pairs preferring a transoid orientation of the glycosidic bonds, parallel-stranded duplexes have been investigated. In many cases, such as the well-established cytosine-Ag(I)-cytosine base pair, metal complex formation is more stabilizing in parallel-stranded DNA than in antiparallel-stranded DNA. This review presents an overview of all metal-mediated base pairs reported as yet in parallel-stranded DNA, compares them with their counterparts in regular DNA (where available), and explains the experimental conditions used to stabilize the respective parallel-stranded duplexes.
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Affiliation(s)
- Jens Müller
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 30, 48149 Münster, Germany
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28
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Chen X, Karpenko A, Lopez-Acevedo O. Silver-Mediated Double Helix: Structural Parameters for a Robust DNA Building Block. ACS OMEGA 2017; 2:7343-7348. [PMID: 30023548 PMCID: PMC6045379 DOI: 10.1021/acsomega.7b01089] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 10/19/2017] [Indexed: 05/10/2023]
Abstract
The DNA double helix is a versatile building block used in DNA nanotechnology. To potentiate the discovery of new DNA nanoscale assemblies, recently, silver cations have been introduced to pair DNA strands by base-Ag+-base bonding rather than by Watson-Crick pairing. In this work, we study the classical dynamics of a parallel silver-mediated homobase double helix and compare it to the dynamics of the antiparallel double helix. Our classical simulations show that only the parallel double helix is highly stable through the 100 ns simulation time. A new type of H-bond previously proposed by our collaboration and recently observed in crystal-determined helices drives the physicochemical stabilization. Compared to the natural B-DNA form, the metal-mediated helix has a contracted axial base pair rise and smaller numbers of base pairs per turn. These results open the path for the inclusion of this robust metal-mediated building block into new nanoscale DNA assemblies.
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Affiliation(s)
- Xi Chen
- Department
of Applied Physics, COMP Centre of Excellence, Aalto University, P.O. Box 11100, 00076 Aalto, Finland
| | - Alexander Karpenko
- Department
of Applied Physics, COMP Centre of Excellence, Aalto University, P.O. Box 11100, 00076 Aalto, Finland
| | - Olga Lopez-Acevedo
- Department
of Applied Physics, COMP Centre of Excellence, Aalto University, P.O. Box 11100, 00076 Aalto, Finland
- Facultad
de Ciencias Básicas, Universidad
de Medellín, Carrera
87 No. 30-65, Medellín 050026, Colombia
- E-mail:
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29
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Jash B, Müller J. Metal-Mediated Base Pairs: From Characterization to Application. Chemistry 2017; 23:17166-17178. [PMID: 28833684 DOI: 10.1002/chem.201703518] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Indexed: 12/11/2022]
Abstract
The investigation of metal-mediated base pairs and the development of their applications represent a prominent area of research at the border of bioinorganic chemistry and supramolecular coordination chemistry. In metal-mediated base pairs, the complementary nucleobases in a nucleic acid duplex are connected by coordinate bonds to an embedded metal ion rather than by hydrogen bonds. Because metal-mediated base pairs facilitate a site-specific introduction of metal-based functionality into nucleic acids, they are ideally suited for use in DNA nanotechnology. This minireview gives an overview of the general requirements that need to be considered when devising a new metal-mediated base pair, both from a conceptual and from an experimental point of view. In addition, it presents selected recent applications of metal-modified nucleic acids to indicate the scope of metal-mediated base pairing.
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Affiliation(s)
- Biswarup Jash
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie and NRW Graduate School of Chemistry, Corrensstr. 28/30, 48149, Münster, Germany
| | - Jens Müller
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie and NRW Graduate School of Chemistry, Corrensstr. 28/30, 48149, Münster, Germany
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30
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Guo X, Seela F. Anomeric 2′-Deoxycytidines and Silver Ions: Hybrid Base Pairs with Greatly Enhanced Stability and Efficient DNA Mismatch Detection with α-dC. Chemistry 2017; 23:11776-11779. [DOI: 10.1002/chem.201703017] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Indexed: 01/04/2023]
Affiliation(s)
- Xiurong Guo
- Laboratory of Bioorganic Chemistry and Chemical Biology; Center for Nanotechnology; Heisenbergstrasse 11 48149 Münster Germany
- Laboratorium für Organische und Bioorganische Chemie; Institut für Chemie neuer Materialien; Universität Osnabrück; Barbarastrasse 7 49069 Osnabrück Germany
| | - Frank Seela
- Laboratory of Bioorganic Chemistry and Chemical Biology; Center for Nanotechnology; Heisenbergstrasse 11 48149 Münster Germany
- Laboratorium für Organische und Bioorganische Chemie; Institut für Chemie neuer Materialien; Universität Osnabrück; Barbarastrasse 7 49069 Osnabrück Germany
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31
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Liu H, Shen F, Haruehanroengra P, Yao Q, Cheng Y, Chen Y, Yang C, Zhang J, Wu B, Luo Q, Cui R, Li J, Ma J, Sheng J, Gan J. A DNA Structure Containing AgI
-Mediated G:G and C:C Base Pairs. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704891] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hehua Liu
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Fusheng Shen
- Department of Chemistry and The RNA Institute; University at Albany; State University of New York; Albany NY 12222 USA
| | - Phensinee Haruehanroengra
- Department of Chemistry and The RNA Institute; University at Albany; State University of New York; Albany NY 12222 USA
| | - Qingqing Yao
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Biochemistry; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Yunshan Cheng
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Yiqing Chen
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Chun Yang
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Jing Zhang
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Baixing Wu
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Biochemistry; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Qiang Luo
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Biochemistry; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Ruixue Cui
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Biochemistry; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Jixi Li
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Jinbiao Ma
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Biochemistry; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Jia Sheng
- Department of Chemistry and The RNA Institute; University at Albany; State University of New York; Albany NY 12222 USA
| | - Jianhua Gan
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
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32
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Liu H, Shen F, Haruehanroengra P, Yao Q, Cheng Y, Chen Y, Yang C, Zhang J, Wu B, Luo Q, Cui R, Li J, Ma J, Sheng J, Gan J. A DNA Structure Containing AgI
-Mediated G:G and C:C Base Pairs. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201704891] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hehua Liu
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Fusheng Shen
- Department of Chemistry and The RNA Institute; University at Albany; State University of New York; Albany NY 12222 USA
| | - Phensinee Haruehanroengra
- Department of Chemistry and The RNA Institute; University at Albany; State University of New York; Albany NY 12222 USA
| | - Qingqing Yao
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Biochemistry; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Yunshan Cheng
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Yiqing Chen
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Chun Yang
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Jing Zhang
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Baixing Wu
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Biochemistry; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Qiang Luo
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Biochemistry; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Ruixue Cui
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Biochemistry; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Jixi Li
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Jinbiao Ma
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Biochemistry; School of Life Sciences; Fudan University; Shanghai 200433 China
| | - Jia Sheng
- Department of Chemistry and The RNA Institute; University at Albany; State University of New York; Albany NY 12222 USA
| | - Jianhua Gan
- State Key Laboratory of Genetic Engineering; Collaborative Innovation Center of Genetics and Development; Department of Physiology and Biophysics; School of Life Sciences; Fudan University; Shanghai 200433 China
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Terrón A, Moreno-Vachiano B, Bauzá A, García-Raso A, Fiol JJ, Barceló-Oliver M, Molins E, Frontera A. X-ray Crystal Structure of a Metalled Double-Helix Generated by Infinite and Consecutive C*-AgI
-C* (C*:N1
-Hexylcytosine) Base Pairs through Argentophilic and Hydrogen Bond Interactions. Chemistry 2017; 23:2103-2108. [DOI: 10.1002/chem.201604331] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Angel Terrón
- Department of Chemistry; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Blas Moreno-Vachiano
- Department of Chemistry; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Antonio Bauzá
- Department of Chemistry; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Angel García-Raso
- Department of Chemistry; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Juan Jesús Fiol
- Department of Chemistry; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Miquel Barceló-Oliver
- Department of Chemistry; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Elies Molins
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus de la Universitat Autònoma de Barcelona 08193 Bellaterra Spain
| | - Antonio Frontera
- Department of Chemistry; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
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