Water at interfaces Faraday Discussion

20 - 22 September 2023, London, United Kingdom


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Introduction
There are major water-related challenges that require enhanced molecular-level understanding and description of water at interfaces, to relate that understanding to macroscopic phenomena in aqueous systems, and then ultimately utilize or control those phenomena. Interfacial water is crucial for disciplines as diverse as atmospheric science, geochemistry, energy science, water purification/desalination, and biology.

This Faraday Discussion aims to combine different approaches, both experimental and theoretical, to further our understanding of the fundamental properties of water at interfaces. Such insights are expected to have important implications for chemistry, biology and potentially medicine; key sustainable technologies such as filtration, desalination, and photocatalytic water splitting; as well as modelling of processes in atmospheric chemistry and physics.
 

Session 1

Dynamics and Nano-Rheology of Interfacial Water

While we have made progress in understanding the static properties of interfacial water, water is in motion for many naturally occurring phenomena (raindrops falling, rivers flowing, etc.) and technological applications (water traversing membranes in water purification, desalination). At the nanoscale, the description of water in terms of its macroscopic properties (density, viscosity, etc.) breaks down, and novel concepts and experimental approaches are needed to further our understanding.
 

Session 2

Electrified / Charged Aqueous Interfaces

Interfaces are often charged, because of the intrinsic charge of the material interface and membrane interface, as well as the emergence of the counter charge as a response of the water pH. In electrochemistry, charge is applied to drive molecular orientation, charge transfer, and chemical transformation. These interfaces induce ion condensation, generating the electrical double layer – Stern layer and diffuse layer Although it is evident that the molecular organization at electrochemical, electrified interfaces determines the chemistry occurring at these interfaces, the description of these processes still occurs at a mean-field level. Is that sufficient?
 

Session 3

Ice Interfaces

Ice is omnipresent in the environment and constitutes an entirely different aqueous interface than that of the liquid. Or does it? The ice-vapor interface starts to be disordered – with reportedly liquid-like properties – above 200 K, much lower than the melting point of bulk ice. This disordered layer is often called the quasi-liquid layer. This quasi-liquid layer plays a critical role in the lubrication of ice surface, gas uptake by ice, and growth of aerosols affecting climate change. Furthermore, ice nucleation process such as heterogeneous ice nucleation which is bound to the material interface affects the biological functions of animals in the cold sea as well as technology aiming at controlling friction of ice. 
 

Session 4

Soft Matter-Water Interface

Soft matter ranges from the biological membrane interface to the polymer interface. Biological interfaces often are unstable without water; water drives the self-assembly of biological structures, and through the interaction with interfacial water, their biological function emerges. Polymer interfaces allow control over the hydrophobicity/hydrophilicity, and the variation of the interfacial water properties e.g. pH and temperature, alters the formation of polymers, making polymer materials useful for drug delivery and coating. A particularly interesting soft matter-water interface is the interface that originates from liquid-liquid phase separation in aqueous solutions of polymers and intrinsically disordered proteins. All these interfaces have in common that molecular-level insights into the interactions of these interfaces with interfacial water remain unclear.
 
Speakers
Abstract Submission

Oral abstracts

A full research paper containing new unpublished results always accompanies oral presentations at Faraday Discussions. Submit an oral/paper abstract by 9 January 2023  if you wish to be considered for an oral presentation and associated published paper. The oral/paper abstract should outline current research in progress. Authors of the selected abstracts must then submit a full research paper with a significant amount of new, unpublished work by 1 May 2023.

The research papers are reviewed upon submission and are sent to all delegates 4 weeks before the meeting so they can be read in advance. At the meeting the presenting author is allowed five minutes to highlight the main points of their paper, and the rest of the time is for discussion. The discussion is recorded and will be published alongside the research paper in the Faraday Discussion Volume.

Poster abstracts

Submit your poster abstract by 10 July 2023. Posters are displayed throughout the meeting, both in-person and online. The Faraday Division poster prize will be awarded to the best poster presented by a student.
 
As this Discussion is being planned as a hybrid event we will be using a dedicated online poster platform to show posters of online delegates. Poster presenters who are attending the Discussion in-person will also need to print and display their poster physically. If your poster is accepted for this event, you will receive an email from us with further information on how to present your poster.

Additional Information

All oral and poster abstracts will be reviewed. Authors will be notified of the outcome of the review process within about 6 weeks of the submission deadline. The abstracts should be no longer than one A4 page in portrait layout. Please ensure you provide the details of the presenting author and indicate whether you are submitting an abstract for oral or poster presentation.
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The Royal Society of Chemistry

The Royal Society of Chemistry, Burlington House, Piccadilly, London, W1J 0BA, United Kingdom

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