Active and Stable Liquid Water Innovatively Prepared Using Resonantly Illuminated Gold Nanoparticles

被引：72

作者：

Chen, Hsiao-Chien ^{[1
]}

Hwang, Bing-Joe ^{[2
]}

Mai, Fu-Der ^{[1
,3
]}

Liu, Yu-Chuan ^{[1
,3
]}

Lin, Chun-Mao ^{[1
]}

Kuo, Hsien-Shou ^{[1
]}

Chou, Duen-Suey ^{[4
]}

Lee, Ming-Jer ^{[2
]}

Yang, Kuang-Hsuan ^{[5
]}

Yu, Chung-Chin ^{[6
]}

Chen, Jiun-Rong ^{[7
]}

Lo, Tsui-Yun ^{[1
]}

Tsai, Hui-Yen ^{[1
]}

Yang, Chih-Ping ^{[8
]}

Wang, Chi ^{[8
]}

Hsieh, Hsiao-Ting ^{[8
]}

Rick, John ^{[2
]}

机构：

[1] Taipei Med Univ, Sch Med, Coll Med, Dept Biochem, Taipei 11031, Taiwan

[2] Natl Taiwan Univ Sci & Technol, Dept Chem Engn, Keelung 10607, Taiwan

[3] Taipei Med Univ, Coll Med, Sch Med, Biomed Mass Imaging Res Ctr, Taipei 11031, Taiwan

[4] Taipei Med Univ, Coll Med, Sch Med, Dept Pharmacol, Taipei 11031, Taiwan

[5] Vanung Univ, Dept Mat Sci & Engn, Chungli 32061, Taiwan

[6] Vanung Univ, Dept Environm Engn, Chungli 32061, Taiwan

[7] Taipei Med Univ, Coll Med, Sch Nutr & Hlth Sci, Taipei 11031, Taiwan

[8] Taipei Med Univ, Coll Med, Grad Inst Med Sci, Taipei 11031, Taiwan

来源：

ACS NANO | 2014年 / 8卷 / 03期

关键词：

small water clusters; Au nanoparticles; resonant illumination; solubility; free radical; VAPOR GENERATION; HYDROGEN; SPECTRUM;

D O I：

10.1021/nn406403c

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

The properties of confined liquid water, or liquid water in contact with hydrophobic surfaces, are significantly different from those of bulk liquid water. However, all of water's commonly described properties are related to inert "bulk liquid water" which comprises a tetrahedral hydrogen-bonded network. In this work, we report an innovative and facile method for preparing small water clusters (SWCs) with reduced affinity hydrogen bonds by letting bulk water flow through supported Au nanoparticles (NPs) under resonant illumination to give NP-treated (AuNT) water at constant temperature. Utilizing localized surface plasmon resonance on illuminated Au NPs, the strong hydrogen bonds of bulk water can be disordered when water is located at the illuminated Au/water interface. The prepared SWCs are free of Au NPs. The energy efficiency for creating SWCs is similar to 17%. The resulting stable AuNT water exhibits distinct properties at room temperature, which are significantly different from the properties of untreated bulk water, examples being their ability to scavenge free hydroxyl and 2,2-diphenyl-1-picrylhydrazyl radicals and to effectively reduce NO release from lipopolysaccharide-induced inflammatory cells.

引用

页码：2704 / 2713

页数：10

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