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DOI | 10.1126/science.aal4346 |
Optical imaging of surface chemistry and dynamics in confinement | |
Macias-Romero, Carlos; Nahalka, Igor; Okur, Halil I.; Roke, Sylvie1 | |
2017-08-25 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 357期号:6353页码:784-787 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland |
英文摘要 | We imaged the interfacial structure and dynamics of water in a microscopically confined geometry, in three dimensions and on millisecond time scales, with a structurally illuminated wide-field second harmonic microscope. The second harmonic images reported on the orientational order of interfacial water, induced by charge-dipole interactions between water molecules and surface charges. The images were converted into surface potential maps. Spatially resolved surface acid dissociation constant (pK(a,s)) values were determined for the silica deprotonation reaction by following pH-induced chemical changes on the curved and confined surfaces of a glass microcapillary immersed in aqueous solutions. These values ranged from 2.3 to 10.7 along the wall of a single capillary because of surface heterogeneities. Water molecules that rotate along an oscillating external electric field were also imaged. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000408327900039 |
WOS关键词 | 2ND-HARMONIC GENERATION MICROSCOPY ; CHARGED INTERFACE ; FLOW ; POLARIZATION ; ILLUMINATION ; DOMAINS ; ACIDITY |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196739 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Ecole Polytech Fed Lausanne, Inst Bioengn, Lab Fundamental BioPhoton, CH-1015 Lausanne, Switzerland; 2.Ecole Polytech Fed Lausanne, Sch Engn, Inst Mat Sci, CH-1015 Lausanne, Switzerland; 3.Ecole Polytech Fed Lausanne, Lausanne Ctr Ultrafast Sci, CH-1015 Lausanne, Switzerland |
推荐引用方式 GB/T 7714 | Macias-Romero, Carlos,Nahalka, Igor,Okur, Halil I.,et al. Optical imaging of surface chemistry and dynamics in confinement[J]. SCIENCE,2017,357(6353):784-787. |
APA | Macias-Romero, Carlos,Nahalka, Igor,Okur, Halil I.,&Roke, Sylvie.(2017).Optical imaging of surface chemistry and dynamics in confinement.SCIENCE,357(6353),784-787. |
MLA | Macias-Romero, Carlos,et al."Optical imaging of surface chemistry and dynamics in confinement".SCIENCE 357.6353(2017):784-787. |
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