Patterns from dried drops as a characterisation and healthcare diagnosis technique, potential and challenges: A review

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Abstract

When particulate-laden droplets evaporate, they leave behind complex patterns on the substrate depending on their composition and the dynamics of their evaporation. Over the past two decades, there has been an increased interest in interpreting these patterns due to their numerous applications in biomedicine, forensics, food quality analysis and inkjet printing. The objective of this review is to investigate the use of patterns from dried drops as a characterisation and diagnosis technique. The patterns left behind by dried drops of various complex fluids are categorised. The potential applications of these patterns are presented, focussing primarily on healthcare, where the future impact could be greatest. A discussion on the limitations which must be overcome and prospective works that may be carried out to allow for widespread implementation of this technique is presented in conclusion.
Original languageEnglish
Article number102546
JournalAdvances in Colloid and Interface Science
Volume298
Early online date16 Oct 2021
DOIs
Publication statusE-pub ahead of print - 16 Oct 2021

Keywords

  • SESSILE DROPS
  • Evaporation
  • pattern formation
  • Diagnosis

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