Core-Controlled Formation of Micellar Cubic Assemblies of Supramolecular Dendrimers:  From Their Mechanism to Formation of Gold Nanostructures

2006 ◽  
Vol 39 (18) ◽  
pp. 6186-6190 ◽  
Author(s):  
Seong A Kim ◽  
Dae-Hwan Jung ◽  
Yun-Ho Kim ◽  
Min Ah Kang ◽  
Hee-Tae Jung
Keyword(s):  
Gold Nanostructures ◽  
Supramolecular Dendrimers

One-step controlled synthesis of anisotropic gold nanostructures with aniline as the reductant in aqueous solution

2007 ◽  
Vol 309 (2) ◽  
pp. 518-523 ◽  
Author(s):  
Zhirui Guo ◽  
Yu Zhang ◽  
Lan Huang ◽  
Meng Wang ◽  
Jing Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Gold Nanostructures ◽  
Controlled Synthesis ◽  
One Step

Ultrahigh-Vacuum Electron Microscopy for Gold Nanostructures

2001 ◽  
Vol 7 (S2) ◽  
pp. 920-921
Author(s):  
Yukihito Kondo ◽  
Kimiharu Okamoto ◽  
Mikio Naruse ◽  
Toshikazu Honda ◽  
Mike Kersker
Keyword(s):  
Electron Microscopy ◽  
Field Emission ◽  
Electronic Devices ◽  
Ultrahigh Vacuum ◽  
Gold Nanostructures ◽  
Scanning Tunneling ◽  
Nano Scale ◽  
Transmission Electron ◽  
Column Type ◽  
Schottky Type

Ultrahigh-vacuum transmission electron microscopy (UHVTEM) has become increasingly popular for the direct observation of nanostructures having clean surfaces, since industrial requirements to make and research nano-scale materials have been rapidly growing for quantum or nanoscale electronic devices. Since we have first developed high resolution UHVTEM in 1986, the UHVTEMs have been evolved with steady advances such as UHV compatible goniometer, field emission gun or etc. Furthermore, the UHVTEM started to combine analytical capabilities such as energy dispersive X-ray spectrometer, in-column type energy filter and etc., and to combine STM (scanning tunneling microscope). The UHV technology is essential for the analysis, because the portion of contaminant in a nano-scale specimen increases as the size of the specimen goes down. This paper reports the results of gold nanostructures by recently the developed UHVTEM.Figure 1 shows recently developed UHVTEM with Schottky type field emission gun.

scholarly journals Composite Poly(vinyl alcohol)-Based Nanofibers Embedding Differently-Shaped Gold Nanoparticles: Preparation and Characterization

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1604
Author(s):  
Andrea Dodero ◽  
Maila Castellano ◽  
Paola Lova ◽  
Massimo Ottonelli ◽  
Elisabetta Brunengo ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Ad Hoc ◽  
Chemical Reduction ◽  
Chemical Properties ◽  
Single Step ◽  
Gold Nanostructures ◽  
Poly Vinyl Alcohol ◽  
Spherical Nanoparticles ◽  
Potential Applications ◽  
New Perspective

Poly(vinyl alcohol) nanofibrous mats containing ad hoc synthesized gold nanostructures were prepared via a single-step electrospinning procedure and investigated as a novel composite platform with several potential applications. Specifically, the effect of differently shaped and sized gold nanostructures on the resulting mat physical-chemical properties was investigated. In detail, nearly spherical nanoparticles and nanorods were first synthesized through a chemical reduction of gold precursors in water by using (hexadecyl)trimethylammonium bromide as the stabilizing agent. These nanostructures were then dispersed in poly(vinyl alcohol) aqueous solutions to prepare nanofibrous mats, which were then stabilized via a humble thermal treatment able to enhance their thermal stability and water resistance. Remarkably, the nanostructure type was proven to influence the mesh morphology, with the small spherical nanoparticles and the large nanorods leading to thinner well defined or bigger defect-rich nanofibers, respectively. Finally, the good mechanical properties shown by the prepared composite mats suggest their ease of handleability thereby opening new perspective applications.

scholarly journals Surface plasmon enhanced light-induced changes in Ge-Se amorphous chalcogenide – gold nanostructures

2020 ◽  
pp. 120491
Author(s):  
István Csarnovics ◽  
Miklós Veres ◽  
Petr Nemec ◽  
Sándor Molnár ◽  
Sándor Kökényesi
Keyword(s):  
Surface Plasmon ◽  
Gold Nanostructures ◽  
Amorphous Chalcogenide ◽  
Induced Changes

Intracellular mineralization of gold nanoparticles using gold ion-binding peptides with cell-penetrating ability

2021 ◽  
Author(s):  
Makoto Ozaki ◽  
Shuhei Yoshida ◽  
Takaaki Tsuruoka ◽  
Kenji Usui
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanostructures ◽  
Ion Binding ◽  
Cell Penetrating ◽  
Binding Peptides ◽  
Conventional Methods ◽  
Gold Ion

Our method can produce uniquely shaped gold nanostructures in lower HAuCl4 concentration than conventional methods by intracellular functions using peptide assembled structures as a template.

Modified gold and polymeric gold nanostructures: Toxicology and biomedical applications

2021 ◽  
Vol 42 ◽  
pp. 100412
Author(s):  
Muneeb Ullah ◽  
Abdul Wahab ◽  
Dilfaraz Khan ◽  
Sumbul Saeed ◽  
Shahid Ullah Khan ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Gold Nanostructures

Sequential Symmetry-Breaking Events as a Synthetic Pathway for Chiral Gold Nanostructures with Spiral Geometries

Nano Letters ◽  
2021 ◽  
Author(s):  
Spencer D. Golze ◽  
Stefania Porcu ◽  
Chen Zhu ◽  
Eli Sutter ◽  
Pier Carlo Ricci ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Gold Nanostructures ◽  
Synthetic Pathway

scholarly journals Assemblies and composites of gold nanostructures for functional devices

Aggregate ◽  
2021 ◽  
Author(s):  
Ke He ◽  
Ying Jiang ◽  
Ting Wang ◽  
Zhihua Liu ◽  
Ming Wang ◽  
...  
Keyword(s):  
Gold Nanostructures
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