冻融循环下固体/水界面监测的新型实验平台。

IF 1.9 4区 工程技术 Q3 MICROSCOPY
Chiara Recalcati, Rossella Yivlialin, Lamberto Duò, Alberto Guadagnini, Gianlorenzo Bussetti
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引用次数: 0

摘要

我们设计并实现了一个基于原子力显微镜(AFM)的原始实验平台,以捕获受冻融条件影响的固体/水界面的纳米级关键特征。这项工作的动机是观察到,在气候和材料科学或低温生物学等背景下,冷冻和解冻是各种过程的基础。尽管它们起着关键作用,但驱动冻结和融化的基本过程仍然难以捉摸,直接记录它们仍然具有挑战性。这主要源于在实验室条件下复制这些过程的操作困难,以及当前技术在匹配这些现象发生的时间和空间尺度方面的限制。在这里,我们提出了一种实验策略来控制固体/水界面的冻结,同时保持大部分水为液体。我们的平台有利于操作简单,可以与任何尖端扫描AFM集成。我们设置的强度是在高取向热解石墨(HOPG)作为模型衬底进行的实验中评估的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A novel experimental platform to monitor solid/water interfaces under freeze-thaw cycles.

We design and implement an original experimental platform resting on Atomic Force Microscopy (AFM) to capture nanoscale insights into key characteristics of solid/water interfaces subject to freeze-thaw conditions. The work is motivated by the observation that freezing and thawing underpin a variety of processes in the context of, e.g., climate and material sciences or cryobiology. Despite their key role, fundamental processes driving freezing and thawing are still elusive and their direct documentation is still challenging. This primarily stems from operational difficulties in replicating these processes under laboratory conditions, as well as constraints of current technology in matching temporal and spatial scales at which these phenomena take place. Here, we propose an experimental strategy to control freezing at solid/water interfaces while maintaining the bulk water as liquid. Our platform favors operational simplicity and can be integrated with any tip-scanning AFM. The strength of our set-up is assessed upon experiments performed on Highly Oriented Pyrolytic Graphite (HOPG) as a model substrate.

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来源期刊
Journal of microscopy
Journal of microscopy 工程技术-显微镜技术
CiteScore
4.30
自引率
5.00%
发文量
83
审稿时长
1 months
期刊介绍: The Journal of Microscopy is the oldest journal dedicated to the science of microscopy and the only peer-reviewed publication of the Royal Microscopical Society. It publishes papers that report on the very latest developments in microscopy such as advances in microscopy techniques or novel areas of application. The Journal does not seek to publish routine applications of microscopy or specimen preparation even though the submission may otherwise have a high scientific merit. The scope covers research in the physical and biological sciences and covers imaging methods using light, electrons, X-rays and other radiations as well as atomic force and near field techniques. Interdisciplinary research is welcome. Papers pertaining to microscopy are also welcomed on optical theory, spectroscopy, novel specimen preparation and manipulation methods and image recording, processing and analysis including dynamic analysis of living specimens. Publication types include full papers, hot topic fast tracked communications and review articles. Authors considering submitting a review article should contact the editorial office first.
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