Biobased natural deep eutectic system as versatile solvents: Structure, interaction and advanced applications

Zeba Usmani, Minaxi Sharma, Manikant Tripathi, Tiit Lukk, Yevgen Karpichev, Nicholas Gathergood, Brahma N. Singh, Vijay Kumar Thakur, Meisam Tabatabaei, Vijai K. Gupta*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

24 Citations (Scopus)

Abstract

The increasing emphasis on the development of green replacements to traditional organic solvents and ionic liquids (ILs) can be attributed to the rising concerns over human health and detrimental impacts of conventional solvents towards the environment. A new generation of solvents inspired by nature and extracted from plant bioresources has evolved over the last few years, and are referred to as natural deep eutectic solvents (NADES). NADES are mixtures of natural constituents like sugars, polyalcohols, sugar-based alcohols, amino acids and organic acids. Interest in NADES has exponentially grown over the last eight years, which is evident from an upsurge in the number of research projects undertaken. NADES are highly biocompatible as they can be biosynthesized and metabolized by nearly all living organisms. These solvents pose several noteworthy advantages, such as easy synthesis, tuneable physico-chemical properties, low toxicity, high biodegradability, solute sustainability and stabilization and low melting point. Research on the applicability of NADES in diverse areas is gaining momentum, which includes as - media for chemical and enzymatic reactions; extraction media for essential oils; anti-inflammatory and antimicrobial agent; extraction of bioactive composites; as chromatographic media; preservatives for labile compounds and in drug synthesis. This review gives a complete overview of the properties, biodegradability and toxicity of NADES which we propose can assist in further knowledge generation on their significance in biological systems and usage in green and sustainable chemistry. Information on applications of NADES in biomedical, therapeutic and pharma-biotechnology fields is also highlighted in the current article along with the recent progress and future perspectives in novel applications of NADES.

Original languageEnglish
Article number163002
JournalScience of the Total Environment
Volume881
Early online date18 Apr 2023
DOIs
Publication statusPrint publication - 10 Jul 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

  • Biodegradation
  • Biomedical application
  • Clinical therapy
  • Nanotechnology
  • Natural deep eutectic solvents
  • Nutraceuticals
  • Pharmaceuticals
  • Plant-based NADES
  • Recyclability
  • Toxicity

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