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Recent Advances in Water/Solid Interfaces
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Recent Advances in Water/Solid Interfaces

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Physical Chemistry".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 12960

Special Issue Editor

Dr. Albert Verdaguer

E-Mail Website
Guest Editor
CSIC-Instituto de Ciencia de Materiales de Barcelona (ICMAB), Barcelona, Spain
Interests: microscopy; image analysis; microscope; photoelectron spectroscopy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The study of thin water films on surfaces started, as did many of the pioneering investigations in surface science, with Irving Langmuir at 1918. Then in the past 100 years, there have been countless studies on water film. As is known to all, thin film water is ubiquitous and any surface under ambient conditions is coated by a thin water film. This film can have a profound effect on the physical and chemical properties of the substrates coated by water and how they interact with the enviroment. Besides, the substarte has also an impact on the struture and properties of the water film itself, promoting or hindering ice nucleation, for example.

Thus, the Editorial Board of Molecules is pleased to announce a Special Issue focused on the “Recent Advances in Water/Solid Interfaces”. This Special Issue is expected to provide an excellent platform to report results that. It is a pleasure to invite you to submit manuscript to this Special Issue. Regular articles, communications, as well as reviews are all welcome.

Dr. Albert Verdaguer
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • water thin films
  • ice nucleation
  • surface science
  • microscopy
  • hidrofobicity

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Published Papers (4 papers)

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Research

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11 pages, 2901 KiB  
Article
Hydration Dynamics and the Future of Small-Amplitude AFM Imaging in Air
by Sergio Santos, Tuza A. Olukan, Chia-Yun Lai and Matteo Chiesa
Molecules 2021, 26(23), 7083; https://doi.org/10.3390/molecules26237083 - 23 Nov 2021
Cited by 3 | Viewed by 2826
Abstract
Here, we discuss the effects that the dynamics of the hydration layer and other variables, such as the tip radius, have on the availability of imaging regimes in dynamic AFM—including multifrequency AFM. Since small amplitudes are required for high-resolution imaging, we focus on [...] Read more.
Here, we discuss the effects that the dynamics of the hydration layer and other variables, such as the tip radius, have on the availability of imaging regimes in dynamic AFM—including multifrequency AFM. Since small amplitudes are required for high-resolution imaging, we focus on these cases. It is possible to fully immerse a sharp tip under the hydration layer and image with amplitudes similar to or smaller than the height of the hydration layer, i.e., ~1 nm. When mica or HOPG surfaces are only cleaved, molecules adhere to their surfaces, and reaching a thermodynamically stable state for imaging might take hours. During these first hours, different possibilities for imaging emerge and change, implying that these conditions must be considered and reported when imaging. Full article
(This article belongs to the Special Issue Recent Advances in Water/Solid Interfaces)
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11 pages, 2921 KiB  
Article
Nanoscale Wetting of Single Viruses
by Annalisa Calò, Aitziber Eleta-Lopez, Thierry Ondarçuhu, Albert Verdaguer and Alexander M. Bittner
Molecules 2021, 26(17), 5184; https://doi.org/10.3390/molecules26175184 - 26 Aug 2021
Cited by 2 | Viewed by 2689
Abstract
The epidemic spread of many viral infections is mediated by the environmental conditions and influenced by the ambient humidity. Single virus particles have been mainly visualized by atomic force microscopy (AFM) in liquid conditions, where the effect of the relative humidity on virus [...] Read more.
The epidemic spread of many viral infections is mediated by the environmental conditions and influenced by the ambient humidity. Single virus particles have been mainly visualized by atomic force microscopy (AFM) in liquid conditions, where the effect of the relative humidity on virus topography and surface cannot be systematically assessed. In this work, we employed multi-frequency AFM, simultaneously with standard topography imaging, to study the nanoscale wetting of individual Tobacco Mosaic virions (TMV) from ambient relative humidity to water condensation (RH > 100%). We recorded amplitude and phase vs. distance curves (APD curves) on top of single virions at various RH and converted them into force vs. distance curves. The high sensitivity of multifrequency AFM to visualize condensed water and sub-micrometer droplets, filling gaps between individual TMV particles at RH > 100%, is demonstrated. Dynamic force spectroscopy allows detecting a thin water layer of thickness ~1 nm, adsorbed on the outer surface of single TMV particles at RH < 60%. Full article
(This article belongs to the Special Issue Recent Advances in Water/Solid Interfaces)
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14 pages, 15429 KiB  
Article
Tunning of Templated CuWO4 Nanorods Arrays Thickness to Improve Photoanode Water Splitting
by Nasori Nasori, Dawei Cao, Zhijie Wang, Ulya Farahdina, Agus Rubiyanto and Yong Lei
Molecules 2021, 26(10), 2900; https://doi.org/10.3390/molecules26102900 - 13 May 2021
Cited by 8 | Viewed by 2948
Abstract
The fabrication of the photoanode of the n-type CuWO4 nanorod arrays was successfully carried out through electrochemical deposition using anodic aluminum oxide (AAO) control templates and for the first time produced distinct gaps between the nanorod arrays. The effectiveness and efficiency of [...] Read more.
The fabrication of the photoanode of the n-type CuWO4 nanorod arrays was successfully carried out through electrochemical deposition using anodic aluminum oxide (AAO) control templates and for the first time produced distinct gaps between the nanorod arrays. The effectiveness and efficiency of the resulting deposition was shown by the performance of the photoelectrochemical (PEC) procedure with a current density of 1.02 mA cm−2 with irradiation using standard AM 1.5G solar simulator and electron changed radiation of 0.72% with a bias potential of 0.71 V (vs. Ag/AgCl). The gap between each nanorod indicated an optimization of the electrolyte penetration on the interface, which resulted in the expansion of the current density as much as 0.5 × 1024 cm−3 with a flat band potential of 0.14 V vs. Ag/AgCl and also a peak quantum efficiency of wavelength 410 nm. Thus, also indicating the gaps between the nanorod arrays is a promising structure to optimize the performance of the PEC water splitting procedure as a sustainable energy source. Full article
(This article belongs to the Special Issue Recent Advances in Water/Solid Interfaces)
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Review

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17 pages, 4066 KiB  
Review
Studying Ice with Environmental Scanning Electron Microscopy
by Elzbieta Pach and Albert Verdaguer
Molecules 2022, 27(1), 258; https://doi.org/10.3390/molecules27010258 - 31 Dec 2021
Cited by 5 | Viewed by 3953
Abstract
Scanning electron microscopy (SEM) is a powerful imaging technique able to obtain astonishing images of the micro- and the nano-world. Unfortunately, the technique has been limited to vacuum conditions for many years. In the last decades, the ability to introduce water vapor into [...] Read more.
Scanning electron microscopy (SEM) is a powerful imaging technique able to obtain astonishing images of the micro- and the nano-world. Unfortunately, the technique has been limited to vacuum conditions for many years. In the last decades, the ability to introduce water vapor into the SEM chamber and still collect the electrons by the detector, combined with the temperature control of the sample, has enabled the study of ice at nanoscale. Astounding images of hexagonal ice crystals suddenly became real. Since these first images were produced, several studies have been focusing their interest on using SEM to study ice nucleation, morphology, thaw, etc. In this paper, we want to review the different investigations devoted to this goal that have been conducted in recent years in the literature and the kind of information, beyond images, that was obtained. We focus our attention on studies trying to clarify the mechanisms of ice nucleation and those devoted to the study of ice dynamics. We also discuss these findings to elucidate the present and future of SEM applied to this field. Full article
(This article belongs to the Special Issue Recent Advances in Water/Solid Interfaces)
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