Investigation of molecular and mesoscale clusters in undersaturated glycine aqueous solutions

Georgina Zimbitas, Anna Jawor-Baczynska, Maria Jazmin Vesga, Nadeem Javid, Barry D. Moore, John Parkinson, Jan Sefcik

Research output: Contribution to journalArticle

1 Citation (Scopus)
17 Downloads (Pure)

Abstract

In this work DLS, NTA, SAXS and NMR were used to investigate populations, size distributions and structure of clusters in undersaturated aqueous solutions of glycine. Molecular and colloidal scale (mesoscale) clusters with radii around 0.3-0.5 nm and 100-150 nm, respectively, were observed using complementary experimental techniques. Molecular clusters are consistent with hydrated glycine dimers present in equilibrium with glycine monomers in aqueous solutions. Mesoscale clusters previously observed in supersaturated glycine solutions appear to be indefinitely stable, in mutual equilibrium within mesostructured undersaturated solutions across all glycine concentrations investigated here, down to as low as 1 mg/g of water.
Original languageEnglish
Article number123633
Number of pages8
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume579
Early online date2 Jul 2019
DOIs
Publication statusPublished - 20 Oct 2019

Keywords

  • clustering
  • mesostructed liquid phase
  • glycine
  • scattering

Fingerprint Dive into the research topics of 'Investigation of molecular and mesoscale clusters in undersaturated glycine aqueous solutions'. Together they form a unique fingerprint.

  • Cite this