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Green Synthesis of Fluorescent Palladium Nanoclusters
Peng, Y (Peng, Yan); Wang, P (Wang, Pei); Luo, L (Luo, Liang); Liu, L (Liu, Lang); Wang, F (Wang, Fu)
2018
发表期刊MATERIALS
ISSN1996-1944
卷号11期号:2页码:1-10
摘要

Metal nanoclusters, with dimensions between atomic and nanoparticles, have attracted a great deal of attention due to their significantly unusual properties. Water-soluble palladium nanoclusters (Pd NCs) with blue-green fluorescence were synthesized by a water bath heating method, with methionine as a stabilizer and ascorbic acid as a reducing agent. We investigated the optimal synthesis conditions, stability, and pH response of the obtained products in detail. The synthesized materials were characterized by ultraviolet-absorption spectroscopy, fluorescence spectroscopy, high-resolution transmission electron microscopy, and atomic force microscopy. These experimental results showed that the Pd NCs had a small size of similar to 1.91 nm, with a uniform size distribution. Additionally, the Pd NCs emitted blue-green fluorescence under ultraviolet light with a quantum yield of 5.47%. Notably, both stabilizers and reducing agents used in this synthesis method are nutrients for humans, non-toxic, and harmless. This method could be viewed as a biologically friendly and green way of preparing fluorescent metal nanoclusters. The as-prepared fluorescent Pd NCs also possessed excellent fluorescence detection ability and were very sensitive to low concentrations of hemoglobin, with a linear response in the range of 0.25-3.5 M and a detection limit of 50 nM.

关键词Palladium Nanoclusters Methionine Fluorescence Hemoglobin
DOI10.3390/ma11020191
收录类别SCI
WOS记录号WOS:000427534800018
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5292
专题环境科学与技术研究室
作者单位1.Xinjiang Univ, Coll Chem & Chem Engn, Urumqi 830046, Xinjiang, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Xinjiang, Peoples R China
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GB/T 7714
Peng, Y ,Wang, P ,Luo, L ,et al. Green Synthesis of Fluorescent Palladium Nanoclusters[J]. MATERIALS,2018,11(2):1-10.
APA Peng, Y ,Wang, P ,Luo, L ,Liu, L ,&Wang, F .(2018).Green Synthesis of Fluorescent Palladium Nanoclusters.MATERIALS,11(2),1-10.
MLA Peng, Y ,et al."Green Synthesis of Fluorescent Palladium Nanoclusters".MATERIALS 11.2(2018):1-10.
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