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 journalArticlepeer-review

16 Citations (Scopus)
100 Downloads (Pure)


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
Early online date2 Jul 2019
Publication statusPublished - 20 Oct 2019


  • clustering
  • mesostructed liquid phase
  • glycine
  • scattering


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