Non‐Aggregation‐Induced Colorimetric Detection of Ag + by Tetrazine‐Capped Gold Nanoparticles Based on the Formation of Au‐Ag Core‐Shell Nanoparticles

2019 ◽  
Vol 4 (42) ◽  
pp. 12409-12417
Author(s):  
Shounak Ray ◽  
Rima Biswas ◽  
Rumeli Banerjee ◽  
Abhisek Brata Ghosh ◽  
Papu Biswas
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Aromatic thiol-modulated Ag overgrowth on gold nanoparticles: tracking the thiol's position in the core–shell nanoparticles

Nanoscale ◽  
2019 ◽  
Vol 11 (37) ◽  
pp. 17471-17477 ◽  
Author(s):  
Jiaqi Chen ◽  
Dejing Meng ◽  
Hui Wang ◽  
Haiyun Li ◽  
Yinglu Ji ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Growth Process ◽  
Shell Growth ◽  
Core Shell ◽  
Internal Reference ◽  
Shell Nanoparticles ◽  
Aromatic Thiol ◽  
The Core ◽  
Spatial Trajectory ◽  
Core Shell Nanoparticles

Using DMAB as the Raman internal reference, the spatial trajectory of modulating 4-ATP molecules was tracked during the shell growth process.

Radiosynthesis of Gold/Albumin Core/shell Nanoparticles for Biomedical Applications

MRS Advances ◽  
2017 ◽  
Vol 2 (49) ◽  
pp. 2675-2681 ◽  
Author(s):  
Constanza Y. Flores ◽  
Estefania Achilli ◽  
Mariano Grasselli
Keyword(s):  
Gold Nanoparticles ◽  
Biomedical Applications ◽  
Irradiation Dose ◽  
Ftir Spectrum ◽  
Core Shell ◽  
Peak Shape ◽  
Shell Nanoparticles ◽  
Plasmon Peak ◽  
Radiation Induced ◽  
Core Shell Nanoparticles

ABSTRACTGold/albumin core/shell nanoparticles (Au/AlbNPs) was prepared by a novel aggregation/crosslinking technique and characterized by several spectroscopic and microscopy methods. Albumin, in presence of gold nanoparticles (AuNPs), is aggregated by the addition of ethanol and further stabilized by radiation-induced crosslinking using a 60Co source. Nanoconstructs are characterized to determine size, morphology and optical characteristics. The Au/AlbNPs were prepared in different ethanol and albumins concentrations. Results showed that it is possible to obtain Au/AlbNPs using ethanol 30 %v/v, albumin in different concentrations and an irradiation dose of 10 kGy. Au/AlbNP plasmon peak shifted to 530 nm, keeping the typical plasmon peak shape. The size of Au/AlbNPs is approximately double respect to the naked AuNPs and they show core/shell type morphology. The main amide peaks of albumin in FTIR spectrum can be found in the spectrum of nanoconstructs.

Sensitive colorimetric detection of glucose and cholesterol by using Au@Ag core–shell nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 35001-35007 ◽  
Author(s):  
Xuehong Zhang ◽  
Min Wei ◽  
Bingjing Lv ◽  
Yuanjian Liu ◽  
Xu Liu ◽  
...  
Keyword(s):  
Colorimetric Detection ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Sensitive colorimetric detection of glucose and cholesterol by using Au@Ag core–shell nanoparticles.

Doping core–shell nanoparticles into a solution-processed electron transporting layer for polymer light-emitting diodes

RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 38148-38152 ◽  
Author(s):  
Jinghong Peng ◽  
Fu Tang ◽  
Xinjun Xu ◽  
Manping Jia ◽  
Lidong Li
Keyword(s):  
Gold Nanoparticles ◽  
Light Emitting Diodes ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Solution Processed ◽  
Light Emitting ◽  
Electron Transporting Layer ◽  
Polymer Light Emitting Diodes ◽  
Core Shell Nanoparticles

Core–shell gold nanoparticles have been doped into the solution-processed electron-transporting layer of PLED to obtain enhanced EL performance.

Synthesis of dual-functional Ag/Au nanoparticles based on the decreased cavitating rate under alkaline conditions and the colorimetric detection of mercury(ii) and lead(ii)

2018 ◽  
Vol 6 (28) ◽  
pp. 7557-7567 ◽  
Author(s):  
Ting-Yang Xing ◽  
Jing Zhao ◽  
Guo-Jun Weng ◽  
Jian-Jun Li ◽  
Jian Zhu ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Colorimetric Detection ◽  
Core Shell ◽  
Specific Detection ◽  
Shell Nanoparticles ◽  
Dual Functional ◽  
Alkaline Conditions ◽  
Core Shell Nanoparticles

Synthesis of Ag/Au core–shell nanoparticles with two LSPR modes and the specific detection of Hg2+and Pb2+.

Preparation and enhanced off-resonance optical nonlinearities of CdS-capped gold nanoparticles embedded in BaTiO3 thin films

2002 ◽  
Vol 17 (11) ◽  
pp. 2802-2808 ◽  
Author(s):  
Yong Yang ◽  
Jianlin Shi ◽  
Hangrong Chen ◽  
Shugang Dai ◽  
Weiming Huang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Nonlinear Response ◽  
Cds Nanoparticles ◽  
Core Shell ◽  
Third Order ◽  
Shell Nanoparticles ◽  
Nonlinear Optical Susceptibility ◽  
Self Assembling ◽  
Optical Susceptibility ◽  
Core Shell Nanoparticles

A simple approach has been developed for the synthesis of Au@CdS core-shell nanoparticles by a direct self-assembling process. Stable Au@CdS composite colloids were prepared by thiourea, as a double-functional reagent that acted as the linkage agent between Cd2+ ions and gold nanoparticles. The CdS-capped gold composite nanoparticles were successfully integrated into BaTiO3 films. A significant enhancement of third-order nonlinear optical susceptibility in the Au@CdS nanoparticles with core-shell structure is reported. To compare the effect of enhanced nonlinear response, single gold or CdS nanoparticles embedded in BaTiO3 films were also prepared.

Au@Ag core/shell nanoparticles as colorimetric probes for cyanide sensing

Nanoscale ◽  
2014 ◽  
Vol 6 (17) ◽  
pp. 9939-9943 ◽  
Author(s):  
Jing-bin Zeng ◽  
Ying-ying Cao ◽  
Jing-jing Chen ◽  
Xu-dong Wang ◽  
Jian-feng Yu ◽  
...  
Keyword(s):  
Colorimetric Detection ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles ◽  
Cyanide Sensing

Au@Ag core/shell NPs are synthesized and used for the colorimetric detection of cyanide.

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