Ultrastable Hydrophilic Gold Nanoclusters Protected by Sulfonic Thiolate Ligands

2020 ◽  
Author(s):  
Bihan Zhang ◽  
Zhennan Wu ◽  
Yitao Cao ◽  
Qiaofeng Yao ◽  
Jianping Xie
Keyword(s):  
Gold Nanoclusters ◽  
Thiolate Ligands

Soft, Oxidative Stripping of Alkyl Thiolate Ligands from Hydroxyapatite-Supported Gold Nanoclusters for Oxidation Reactions

2015 ◽  
Vol 11 (4) ◽  
pp. 532-539 ◽  
Author(s):  
Bin Zhang ◽  
Jun Fang ◽  
Jingguo Li ◽  
Jun Jie Lau ◽  
Davide Mattia ◽  
...  
Keyword(s):  
Gold Nanoclusters ◽  
Oxidation Reactions ◽  
Thiolate Ligands ◽  
Supported Gold

Roles of thiolate ligands in the synthesis, properties and catalytic application of gold nanoclusters

2018 ◽  
Vol 368 ◽  
pp. 60-79 ◽  
Author(s):  
Ricca Rahman Nasaruddin ◽  
Tiankai Chen ◽  
Ning Yan ◽  
Jianping Xie
Keyword(s):  
Gold Nanoclusters ◽  
Thiolate Ligands ◽  
Catalytic Application ◽  
Synthesis Properties

Ultraviolet photoabsorption spectra of silver and gold nanoclusters

1998 ◽  
Vol 78 (4) ◽  
pp. 385-396 ◽  
Author(s):  
V. Kasperovich, V. V. Kresin
Keyword(s):  
Gold Nanoclusters

Highly Fluorescent Au25-xAgx Nanoclusters Protected with Poly(ethylene glycol) - and Zwitterion-Modified Thiolate Ligands

2018 ◽  
Author(s):  
Dinesh Mishra ◽  
Sisi Wang ◽  
Zhicheng Jin ◽  
Eric Lochner ◽  
Hedi Mattoussi
Keyword(s):  
Quantum Yield ◽  
Near Infrared ◽  
Small Diameter ◽  
Binding Energies ◽  
Thiolate Ligands ◽  
Nir Emission ◽  
Thiolate Complexes ◽  
Long Lifetime ◽  
Poly Ethylene

<p>We describe the growth and characterization of highly fluorescing, near-infrared-emitting nanoclusters made of bimetallic Au<sub>25-x</sub>Ag<sub>x</sub> cores, prepared using various monothiol-appended hydrophobic and hydrophilic ligands. The reaction uses well-defined triphenylphosphine-protected Au<sub>11</sub> clusters (as precursors), which are reacted with Ag(I)-thiolate complexes. The prepared nanoclusters are small (diameter < 2nm, as characterized by TEM) with emission peak at 760 nm and long lifetime (~12 µs). The quantum yield measured for these materials was 0.3 - 0.4 depending on the ligand. XPS measurements show the presence of both metal atoms in the core, with measured binding energies that agree with reported values for nanocluster materials. The NIR emission combined with high quantum yield, small size and ease of surface functionalization afforded by the coating, make these materials suitable to implement investigations that address fundamental questions and potentially useful for biological sensing and imaging applications.<br></p>

Bone Marrow Mesenchymal Stem Cell mediated Ultrasmall Gold Nanoclusters and hNIS Gene Synergize Radiotherapy in Breast Cancer

2021 ◽  
Author(s):  
Lu Zhang ◽  
Benchao Zheng ◽  
Rui Guo ◽  
Ying Miao ◽  
Biao Li
Keyword(s):  
Breast Cancer ◽  
Bone Marrow ◽  
Stem Cell ◽  
Growth Response ◽  
Sodium Iodide ◽  
Gold Nanoclusters ◽  
Early Growth ◽  
Sodium Iodide Symporter ◽  
Early Growth Response ◽  
131I Treatment

The human sodium iodide symporter (hNIS) can be linked to the downstream of radiation-sensitive early growth response protein1 (Egr1) promoter, and activated by the Egr1 following 131I treatment. However, the...

scholarly journals Cd-Driven Surface Reconstruction and Photodynamics in Gold Nanoclusters

2021 ◽  
Author(s):  
Xu Liu ◽  
Guo Yao ◽  
Xinglian Cheng ◽  
Jiayu Xu ◽  
Xiao Cai ◽  
...  
Keyword(s):  
Surface Reconstruction ◽  
Gold Nanoclusters ◽  
Effective Strategy

With atomically precise gold nanoclusters acting as a starting unit, substituting one or more gold atoms of the nanocluster with other metals has become an effective strategy to create metal...

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