Interactions of water and amphiphiles with deep eutectic solvent nanostructures

Iva Manasi, Saffron Bryant, Oliver Hammond, Karen Edler

Research output: Chapter or section in a book/report/conference proceedingChapter or section

6 Citations (SciVal)

Abstract

Deep eutectic solvents (DES) are extensively hydrogen-bonded eutectic mixtures with low melting points. The presence of H-bonding makes them highly susceptible to interactions with water and also allows them to support amphiphile self-assembly, both for surfactants and biological lipids. Water disrupts the DES nework through intermolecular H-bonding, leading to changes in physicochemical properties: melting point, density and viscosity decrease; whereas electrical conductivity increases as water is added. Trends in these properties and structural studies suggest an upper hydration limit, where a transition is observed, around 60–80 mol% water, from water-in-DES to DES-in-water behavior. Amphiphiles form aggregates in DES depending on solvophobicity, water content and Gordon parameter with structures ranging from globular micelles to highly ordered hexagonal/cubic phases. Lipid vesicle formation is also ob- served in DES with and without water. These interactions find important applications in fields such as biology, nanoparticle synthesis and electrodeposition.
Original languageEnglish
Title of host publicationEutectic Solvents and Stress in Plants
EditorsRobert Verpoorte, Geert-Jan Witkamp, Young Hae Choi
PublisherElsevier Academic Press Inc
Chapter2
Pages41-68
Number of pages28
Edition1
ISBN (Print)9780128216910
DOIs
Publication statusPublished - 10 Jan 2021

Publication series

NameAdvances in Botanical Research
Volume97
ISSN (Print)0065-2296

Keywords

  • Amphiphiles
  • Deep eutectic solvents
  • Interactions
  • Ionic liquids
  • Lipids
  • Micelles
  • Nanostructure
  • Non-aqueous solvents
  • Surfactants
  • Water

ASJC Scopus subject areas

  • Plant Science

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