Effects of Metal Ions on Conductivity and Structure of Single DNA Molecule in Different Environmental Conditions
<p>Abstract</p> <p>We design a novel nano-gap electrode to measure the current of DNA molecule, by which the current–voltage characteristics of individual native DNA, Ag-DNA and Ni-DNA molecules are obtained, respectively. The results show that the voltage gap of Ag- and...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2010-01-01
|
| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/s11671-010-9657-3 |
| _version_ | 1797715004597731328 |
|---|---|
| author | Dong Ruixin Yan Xunling Li Ke Ban Ge Wang Minghong Cui Shouxin Yang Bing |
| author_facet | Dong Ruixin Yan Xunling Li Ke Ban Ge Wang Minghong Cui Shouxin Yang Bing |
| author_sort | Dong Ruixin |
| collection | DOAJ |
| description | <p>Abstract</p> <p>We design a novel nano-gap electrode to measure the current of DNA molecule, by which the current–voltage characteristics of individual native DNA, Ag-DNA and Ni-DNA molecules are obtained, respectively. The results show that the voltage gap of Ag- and Ni-DNA is higher than that of native DNA, and the conductance is lower than native DNA in neutral environment. The structure transition from B- to Z-DNA is observed in the presence of high concentrations of nickel ions and Ag-DNA appears chaos state by STM image and U-V spectra characterization. But in alkaline environment, the conductance of Ni-DNA rises and the voltage gap decreases with the increasing of nickel ion concentration denotes that the conductive ability of Ni-DNA is higher than that of native DNA.</p> |
| first_indexed | 2024-03-12T08:00:26Z |
| format | Article |
| id | doaj.art-eda92b9fb1b14460ab7a9779dc2d8875 |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T08:00:26Z |
| publishDate | 2010-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-eda92b9fb1b14460ab7a9779dc2d88752023-09-02T19:56:33ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2010-01-015914311436Effects of Metal Ions on Conductivity and Structure of Single DNA Molecule in Different Environmental ConditionsDong RuixinYan XunlingLi KeBan GeWang MinghongCui ShouxinYang Bing<p>Abstract</p> <p>We design a novel nano-gap electrode to measure the current of DNA molecule, by which the current–voltage characteristics of individual native DNA, Ag-DNA and Ni-DNA molecules are obtained, respectively. The results show that the voltage gap of Ag- and Ni-DNA is higher than that of native DNA, and the conductance is lower than native DNA in neutral environment. The structure transition from B- to Z-DNA is observed in the presence of high concentrations of nickel ions and Ag-DNA appears chaos state by STM image and U-V spectra characterization. But in alkaline environment, the conductance of Ni-DNA rises and the voltage gap decreases with the increasing of nickel ion concentration denotes that the conductive ability of Ni-DNA is higher than that of native DNA.</p>http://dx.doi.org/10.1007/s11671-010-9657-3DNAMetal ionsNano-gap electrodeConductivityStructure |
| spellingShingle | Dong Ruixin Yan Xunling Li Ke Ban Ge Wang Minghong Cui Shouxin Yang Bing Effects of Metal Ions on Conductivity and Structure of Single DNA Molecule in Different Environmental Conditions Nanoscale Research Letters DNA Metal ions Nano-gap electrode Conductivity Structure |
| title | Effects of Metal Ions on Conductivity and Structure of Single DNA Molecule in Different Environmental Conditions |
| title_full | Effects of Metal Ions on Conductivity and Structure of Single DNA Molecule in Different Environmental Conditions |
| title_fullStr | Effects of Metal Ions on Conductivity and Structure of Single DNA Molecule in Different Environmental Conditions |
| title_full_unstemmed | Effects of Metal Ions on Conductivity and Structure of Single DNA Molecule in Different Environmental Conditions |
| title_short | Effects of Metal Ions on Conductivity and Structure of Single DNA Molecule in Different Environmental Conditions |
| title_sort | effects of metal ions on conductivity and structure of single dna molecule in different environmental conditions |
| topic | DNA Metal ions Nano-gap electrode Conductivity Structure |
| url | http://dx.doi.org/10.1007/s11671-010-9657-3 |
| work_keys_str_mv | AT dongruixin effectsofmetalionsonconductivityandstructureofsinglednamoleculeindifferentenvironmentalconditions AT yanxunling effectsofmetalionsonconductivityandstructureofsinglednamoleculeindifferentenvironmentalconditions AT like effectsofmetalionsonconductivityandstructureofsinglednamoleculeindifferentenvironmentalconditions AT bange effectsofmetalionsonconductivityandstructureofsinglednamoleculeindifferentenvironmentalconditions AT wangminghong effectsofmetalionsonconductivityandstructureofsinglednamoleculeindifferentenvironmentalconditions AT cuishouxin effectsofmetalionsonconductivityandstructureofsinglednamoleculeindifferentenvironmentalconditions AT yangbing effectsofmetalionsonconductivityandstructureofsinglednamoleculeindifferentenvironmentalconditions |