Three-Dimensional Assembly of Gold Nanoparticles in Spherically Confined Microphase-Separation Structures of Block copolymers

2011 ◽  
Vol 44 (15) ◽  
pp. 5868-5873 ◽  
Author(s):  
Hiroshi Yabu ◽  
Tatsuya Jinno ◽  
Kazutaka Koike ◽  
Takeshi Higuchi ◽  
Masatsugu Shimomura
Keyword(s):  
Gold Nanoparticles ◽  
Block Copolymers ◽  
Microphase Separation ◽  
Three Dimensional

scholarly journals Hydrodynamic effects in three-dimensional microphase separation of block copolymers: Dynamic mean-field density functional approach

1998 ◽  
Vol 108 (21) ◽  
pp. 9150-9154 ◽  
Author(s):  
N. M. Maurits ◽  
A. V. Zvelindovsky ◽  
G. J. A. Sevink ◽  
B. A. C. van Vlimmeren ◽  
J. G. E. M. Fraaije
Keyword(s):  
Block Copolymers ◽  
Density Functional ◽  
Microphase Separation ◽  
Mean Field ◽  
Three Dimensional ◽  
Functional Approach ◽  
Field Density ◽  
Hydrodynamic Effects

Gold Nanoparticle-Enhanced Laser-Induced Breakdown Spectroscopy and Three-Dimensional Contour Imaging of an Aluminum Alloy

2020 ◽  
pp. 000370282097304
Author(s):  
Amal A. Khedr ◽  
Mahmoud A. Sliem ◽  
Mohamed Abdel-Harith
Keyword(s):  
Gold Nanoparticles ◽  
Aluminum Alloy ◽  
Three Dimensional ◽  
Plasma Temperature ◽  
Spectral Lines ◽  
Laser Induced Breakdown Spectroscopy ◽  
Al Alloy ◽  
Boltzmann Plot ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

In the present work, nanoparticle-enhanced laser-induced breakdown spectroscopy was used to analyze an aluminum alloy. Although LIBS has numerous advantages, it suffers from low sensitivity and low detection limits compared to other spectrochemical analytical methods. However, using gold nanoparticles helps to overcome such drawbacks and enhances the LIBS sensitivity in analyzing aluminum alloy in the current work. Aluminum was the major element in the analyzed samples (99.9%), while magnesium (Mg) was the minor element (0.1%). The spread of gold nanoparticles onto the Al alloy and using a laser with different pulse energies were exploited to enhance the Al alloy spectral lines. The results showed that Au NPs successfully improved the alloy spectral lines intensity by eight times, which could be useful for detecting many trace elements in higher matrix alloys. Under the assumption of local thermodynamic equilibrium, the Boltzmann plot was used to calculate the plasma temperature. Besides, the electron density was calculated using Mg and H lines at Mg(I) at 285.2 nm and Hα(I) at 656.2 nm, respectively. Three-dimensional contour mapping and color fill images contributed to understanding the behavior of the involved effects.

scholarly journals Three-Dimensional Multilayered Nanostructures from Crosslinkable Block Copolymers

2016 ◽  
Vol 5 (3) ◽  
pp. 287-291 ◽  
Author(s):  
Sanghoon Woo ◽  
Hyun Suk Wang ◽  
Youngson Choe ◽  
June Huh ◽  
Joona Bang
Keyword(s):  
Block Copolymers ◽  
Three Dimensional ◽  
Multilayered Nanostructures

Evaluation of photodynamic therapy efficiency using an in vitro three-dimensional microfluidic breast cancer tissue model

Lab on a Chip ◽  
2015 ◽  
Vol 15 (3) ◽  
pp. 735-744 ◽  
Author(s):  
Yamin Yang ◽  
Xiaochuan Yang ◽  
Jin Zou ◽  
Chao Jia ◽  
Yue Hu ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Gold Nanoparticles ◽  
Photodynamic Therapy ◽  
Three Dimensional ◽  
Therapeutic Agents ◽  
Breast Cancer Tissue ◽  
Cancer Tissue ◽  
Tissue Model

A microfluidic-based in vitro three-dimensional (3D) breast cancer tissue model was established for determining the efficiency of photodynamic therapy (PDT) with therapeutic agents (photosensitizer and gold nanoparticles) under various irradiation conditions.

Three-dimensional nanomasks using block copolymers confined in the nanopores of anodic aluminum oxide templates

2015 ◽  
Vol 3 ◽  
pp. 52-56 ◽  
Author(s):  
Chiang-Jui Chu ◽  
Chia-Hua Lin ◽  
Pei-Yun Chung ◽  
Ming-Hsiang Cheng ◽  
Kai-Sheng Jeng ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Aluminum Oxide ◽  
Anodic Aluminum Oxide ◽  
Three Dimensional ◽  
Anodic Aluminum ◽  
Anodic Aluminum Oxide Templates
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