Results 261 to 270 of about 3,380,404 (320)

Highly sensitive Co3O4 nanoparticles/MEMS NO2 gas sensor with the adsorption of the Au nanoparticles

, 2020
This study produces Co3O4 nanoparticles (NPs) using ultrasonic wave grinding technology. The experimental results show that the average diameter of Co3O4-NPs is about 6 nm. Au nanoparticles are adsorbed onto the surface of Co3O4-NPs and integrated with a
T. Hsueh, Songshuai Wu
semanticscholar   +1 more source

Shell Cross-Linked Au Nanoparticles

Langmuir, 2006
The organic layer of thiol-protected Au nanoparticles (ca.3 nm in diameter) was cross-linked using ring-opening metathesis polymerization or Michael addition of polyfunctional amines. The shell cross-linked nanoparticles showed increased stability toward thermal treatment and oxidative etching.
Stéphanie, Koenig, Victor, Chechik
openaire   +2 more sources

Micropatterns constructed from Au nanoparticles

Chemical Communications, 2003
Covalently linked Au-NPs micropatterns have been successfully fabricated from the self-assembly film composed of 4-mercaptophenol-capped Au nanoparticles (Au-NPs) and -N2+ containing polymers of nitro-diazoresin (NDR) by selective exposure to UV light and development in sodium dodecyl sulfate (SDS) aqueous solution.
Conghua, Lu, Nianzu, Wu, Xiaoming, Jiao, Chuanqiou, Luo, Weixiao, Cao   +4 more
openaire   +2 more sources

Electrochemical Reduction of N2 into NH3 by Donor-Acceptor Couples of Ni and Au Nanoparticles with a 67.8% Faradaic Efficiency.

Journal of the American Chemical Society, 2019
The traditional NH3 production method (Haber-Bosch process) is currently complemented by electrochemical synthesis at ambient conditions, but the rather low selectivity (as indicated by the Faradaic efficiency) for the electrochemical reduction of ...
Zhong-Hua Xue, Shinan Zhang, Yun-Xiao Lin, Huilan Su, Guang‐Yao Zhai, Jing-Tan Han, Q. Yu, Xin‐Hao Li, M. Antonietti, Jie‐Sheng Chen   +9 more
semanticscholar   +1 more source

Bioanalytical Applications of Au Nanoparticles

Recent Patents on Nanotechnology, 2010
Nanoscale Au particles are received with significant interest in the recent years owing to their unique properties, which originate from the quantum scale dimension. Although colloidal Au has been known since ancient times for the decoration of glasses and for its curative powers, the technological importance has been understood only in the last two ...
Bikash K, Jena, Sourov, Ghosh, Rajkumar, Bera, Ramendra S, Dey, Ashok K, Das, C Retna, Raj   +5 more
openaire   +2 more sources

Plasmon-enhanced photoluminescence from SnO2 nanostructures decorated with Au nanoparticles

Applications of Surface Science, 2020
We report significantly enhanced photoluminescence from hybrid nanostructured Au/SnO2 thin films due to surface plasmons excited in Au nanoparticles decorating SnO2 nanostructured thin film.
Neha Bhardwaj, B. Satpati, S. Mohapatra
semanticscholar   +1 more source

Thermal Contraction of Au Nanoparticles

Physical Review Letters, 2002
A fine Au powder, with a mean particle diameter of 4 nm, has been successfully fabricated. The crystalline structure of the 4 nm Au nanoparticles remains in fcc symmetry. No structural changes were found between 15 and 450 K. A crossover from a positive thermal expansion at low temperatures to a negative thermal expansion at high temperatures was ...
W-H, Li, S Y, Wu, C C, Yang, S K, Lai, K C, Lee, H L, Huang, H D, Yang   +6 more
openaire   +2 more sources

Synthetic Principles of Spiky Au Nanoparticles

ACS Applied Materials & Interfaces, 2023
In this work, the synthetic principles of spiky Au nanoparticles (spiky Au NPs) with an average number of spikes of less than or equal to six and controlled core sizes by using Au nanorods as seeds (Au-NR seeds) are summarized on the basis of the results of a series of control experiments.
Mengmeng Zhang, Mengjiao Hao, Xueling Tang, Yongchan Fan, Haibing Xia   +4 more
openaire   +2 more sources

Controlled synthesis of PbS–Au nanostar–nanoparticle heterodimers and cap-like Au nanoparticles

Nanoscale, 2010
Uniform PbS-Au nanostar-nanoparticle heterodimers consisting of one Au nanoparticle grown on one horn of a well-defined six-horn PbS nanostar were prepared using the PbS nanostars as growth substrates for the selective deposition of Au nanoparticles.
Nana, Zhao, Lianshan, Li, Teng, Huang, Limin, Qi   +3 more
openaire   +2 more sources

Electromagnetically Coupled Au Nanoparticles

2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED), 2021
The current intense interest in the properties of gold nanoparticles for their applications in antenna design, optical sensing, optical quality control, biotechnology and medical diagnostics is currently based on their resonantly enhanced scattering properties.
openaire   +1 more source