GOLD DNA-CONJUGATES: ION SPECIFIC SELF-ASSEMBLY OF GOLD NANOPARTICLES VIA THE DG-QUARTET
The Oxytricha telomere DNA hairpin 5′-d(G4T4G4) immobilized on 13 nm gold nanoparticles forms a supramolecular assembly via dG-quartets, as determined by the color change and by SEM. The aggregation is ion-dependent and selective for sodium ions. K + is less efficient while Li + and Cs + do not driv...
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| Published in | Nucleosides, nucleotides & nucleic acids Vol. 24; no. 5-7; pp. 843 - 846 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
United States
Taylor & Francis Group
01.01.2005
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| Subjects | |
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| Abstract | The Oxytricha telomere DNA hairpin 5′-d(G4T4G4) immobilized on 13 nm gold nanoparticles forms a supramolecular assembly via dG-quartets, as determined by the color change and by SEM. The aggregation is ion-dependent and selective for sodium ions. K
+
is less efficient while Li
+
and Cs
+
do not drive the aggregation. This work is the first effort exploring the use of secondary structures of DNA (quadruplexes) for producing self-assemblies of gold nanoparticles. |
|---|---|
| AbstractList | The Oxytricha telomere DNA hairpin 5′-d(G4T4G4) immobilized on 13 nm gold nanoparticles forms a supramolecular assembly via dG-quartets, as determined by the color change and by SEM. The aggregation is ion-dependent and selective for sodium ions. K
+
is less efficient while Li
+
and Cs
+
do not drive the aggregation. This work is the first effort exploring the use of secondary structures of DNA (quadruplexes) for producing self-assemblies of gold nanoparticles. The Oxytricha telomere DNA hairpin 5'-d(G4T4G4) immobilized on 13 nm gold nanoparticles forms a supramolecular assembly via dGC-quartets, as determined by the color change and by SEM. The aggregation is ion-dependent and selective for sodium ions. K+ is less efficient while Li+ and Cs+ do not drive the aggregation. This work is the first effort exploring the use of secondary structures of DNA (quadruplexes) for producing self-assemblies of gold nanoparticles. |
| Author | Chi, Lifeng Zhong, Dingyong Jawalekar, Anup Seela, Frank Fuchs, Harald |
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| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/16248046$$D View this record in MEDLINE/PubMed |
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| Cites_doi | 10.1016/j.canlet.2004.02.004 10.1021/ic991123r 10.1021/ja972332i 10.1021/bc010064e 10.1016/S0022-2836(02)00428-X 10.1021/bi00053a027 |
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| Snippet | The Oxytricha telomere DNA hairpin 5′-d(G4T4G4) immobilized on 13 nm gold nanoparticles forms a supramolecular assembly via dG-quartets, as determined by the... The Oxytricha telomere DNA hairpin 5'-d(G4T4G4) immobilized on 13 nm gold nanoparticles forms a supramolecular assembly via dGC-quartets, as determined by the... |
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| SubjectTerms | Base Sequence DNA DNA - chemistry G-Quartet Gold - chemistry Gold-Nanoparticles Guanine - chemistry Ions Macromolecular Substances Microscopy, Electron, Scanning Molecular Conformation Molecular Sequence Data Nanostructures - chemistry Nucleic Acid Conformation Nucleic Acid Denaturation Nucleic Acid Heteroduplexes Potassium - chemistry Self-Assembly Sodium - chemistry Telomere - ultrastructure Ultraviolet Rays |
| Title | GOLD DNA-CONJUGATES: ION SPECIFIC SELF-ASSEMBLY OF GOLD NANOPARTICLES VIA THE DG-QUARTET |
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