Fabrication of CdS Nanoparticle Chains along DNA Double Strands

Torimoto, Tsukasa; Yamashita, Masahiro; Kuwabata, Susumu; Sakata, Takao; Mori, and Hirotaro; Yoneyama, Hiroshi

doi:10.1021/jp991781x

Cited by 132 publications

(83 citation statements)

References 44 publications

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“…[176] Negatively charged ds-DNA molecules associated with the water/air interface of a solution that contained cationic surfactant molecules (dioleoyltrimethylammonium propane, 38; Figure 17). The layer at the interface was compressed by using the Langmuir-Blodgett technique to provide a highdensity packing of the DNA molecules.…”

Section: Nucleic Acid-nanoparticle Architectures On Surfacesmentioning

confidence: 99%

Integrated Nanoparticle–Biomolecule Hybrid Systems: Synthesis, Properties, and Applications

2004

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Nanomaterials, such as metal or semiconductor nanoparticles and nanorods, exhibit similar dimensions to those of biomolecules, such as proteins (enzymes, antigens, antibodies) or DNA. The integration of nanoparticles, which exhibit unique electronic, photonic, and catalytic properties, with biomaterials, which display unique recognition, catalytic, and inhibition properties, yields novel hybrid nanobiomaterials of synergetic properties and functions. This review describes recent advances in the synthesis of biomolecule-nanoparticle/nanorod hybrid systems and the application of such assemblies in the generation of 2D and 3D ordered structures in solutions and on surfaces. Particular emphasis is directed to the use of biomolecule-nanoparticle (metallic or semiconductive) assemblies for bioanalytical applications and for the fabrication of bioelectronic devices.

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Section: Nucleic Acid-nanoparticle Architectures On Surfacesmentioning

confidence: 99%

Integrated Nanoparticle–Biomolecule Hybrid Systems: Synthesis, Properties, and Applications

2004

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“…Nanowires of Au, [3][4][5][6][7][8] Pt [9][10][11][12] and Pd, [13][14][15] binary semiconductors [16][17][18] and conducting polymers [19][20][21] have all been prepared using this method. The advantages of DNA as a template are: (i) it is a chemically robust material which can be obtained in high purity; (ii) single molecules of DNA many micrometres long are available and (iii) DNA composition and structure are well defined.…”

Section: Introductionmentioning

confidence: 99%

Self‐Assembly of DNA‐Templated Polypyrrole Nanowires: Spontaneous Formation of Conductive Nanoropes

Pruneanu¹,

Al-Said²,

Dong³

et al. 2008

Adv Funct Materials

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Polypyrrole nanowires formed by polymerization of pyrrole on a DNA template self‐assemble into rope‐like structures. These ‘nanoropes’ may be quite smooth (diameters 5–30 nm) or may show frayed ends where individual strands are visible. A combination of electric force microscopy, conductive atomic force microscopy and two‐terminal current–voltage measurements show that they are conductive. Nanoropes adhere more weakly to hydrophobic surfaces prepared by silanization of SiO2 than to the clean oxide; this effect can be used to aid the combing of the nanoropes across microelectrode devices for electrical characterization.

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“…Indeed, synthetic approaches for CdTe [30][31][32] and CdS [30,[33][34][35][36][37][38] have utilized aqueous solvent conditions. However, these nanocrystals usually lack the quantum yield and narrow size distribution observed for TOPO-synthesized quantum dots.…”

Section: 22mentioning

confidence: 99%

Biofunctionalization of Fluorescent Nanoparticles

Murcia

Naumann

2007

Nanotechnologies for the Life Sciences

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The sections in this article are Introduction Fluorescent Nanoparticle Probes Dye‐doped Nanoparticles Quantum Dots ( QDs ) Metal Nanoparticles Hybrid Architectures Involving Fluorescent Nanoprobes Metal–Dye Dye‐doped Silica Shells Quantum Dot‐containing Microspheres Bioconjugation of Fluorescent Nanoparticles General Considerations Overview Common Coupling Reactions Bioconjugation of Polymeric Nanoparticles Noncovalent Approaches Covalent Approaches Bioconjugation of Quantum Dots Noncovalent Approaches Covalent Approaches Bioconjugation of Metallic Nanoprobes Noncovalent Approaches Covalent Approaches Design of Biocompatible Coatings General Considerations Overview Colloidal Stability Biocompatible Surfaces Cytotoxicity Nanoparticle‐stabilizing Coatings Low Cytotoxicity Coatings Applications Biosensing Polymeric Sensors Quantum Dot Sensors Metallic Sensors Fluorescent Nanoparticles as Labels in Biological Imaging Dye‐doped Nanoparticles Quantum Dots

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Fabrication of CdS Nanoparticle Chains along DNA Double Strands

Cited by 132 publications

References 44 publications

Integrated Nanoparticle–Biomolecule Hybrid Systems: Synthesis, Properties, and Applications

Integrated Nanoparticle–Biomolecule Hybrid Systems: Synthesis, Properties, and Applications

Self‐Assembly of DNA‐Templated Polypyrrole Nanowires: Spontaneous Formation of Conductive Nanoropes

Biofunctionalization of Fluorescent Nanoparticles

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