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Nanoscale Chemical Imaging by Photo‐Induced Force Microscopy: Technical Aspects and Application to the Geosciences
Geostandards and Geoanalytical Research ( IF 2.7 ) Pub Date : 2021-01-21 , DOI: 10.1111/ggr.12373
Laura M. Otter 1 , Michael W. Förster 2 , Elena Belousova 2 , Padraic O’Reilly 3 , Derek Nowak 3 , Sung Park 3 , Simon Clark 2 , Stephen F. Foley 2 , Dorrit E. Jacob 1
Affiliation  

Photo‐induced force microscopy (PiFM) is a new‐frontier technique that combines the advantages of atomic force microscopy with infrared spectroscopy and allows for the simultaneous acquisition of 3D topographic data with molecular chemical information at high spatial (~ 5 nm) and spectral (~ 1 cm−1) resolution at the nanoscale. This non‐destructive technique is time efficient as it requires only conventional mirror‐polishing and has fast mapping rates on the order of a few minutes that allow the study of dynamic processes via time series. Here, we review the method’s historical development, working principle, data acquisition, and evaluation, and provide a comparison with traditional geochemical methods. We review PiFM studies in the areas of materials science, chemistry and biology. In addition, we provide the first applications for geochemical samples including the visualization of faint growth zonation in zircons, the identification of fluid speciation in high‐pressure experimental samples, and of nanoscale organic phases in biominerals. We demonstrate that PiFM analysis is a time‐ and cost‐efficient technique combining high‐resolution surface imaging with molecular chemical information at the nanoscale and, thus, complements and expands traditional geochemical methods.

中文翻译:

光致力显微镜的纳米级化学成像:技术方面及其在地球科学中的应用

光诱导力显微镜(PiFM)是一项新兴技术,结合了原子力显微镜与红外光谱的优势,并允许在高空间(〜5 nm)和光谱( 〜1厘米-1)的分辨率。这种无损技术省时,因为它只需要常规的镜面抛光,并具有几分钟左右的快速映射速率,可以通过时间序列研究动态过程。在这里,我们回顾了该方法的历史发展,工作原理,数据采集和评估,并与传统的地球化学方法进行了比较。我们回顾了材料科学,化学和生物学领域的PiFM研究。此外,我们为地球化学样品提供了首个应用程序,包括可视化锆石中微弱的生长带,鉴定高压实验样品中的流体形态以及生物矿物中的纳米级有机相。
更新日期:2021-03-09
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