An evaluation of methods for contact angle measurement

Anandi Krishnan, Yi Hsiu Liu, Paul Cha, Roger Woodward, David Allara, Erwin A. Vogler

Research output: Contribution to journalArticlepeer-review

107 Scopus citations


A systematic comparison of Wilhelmy-balance tensiometry (WBT), tilting-plate goniometry (TPG) and captive-drop goniometry (CDG), using a variety of silane-treated glass surfaces of variable wetting characteristics is reported. WBT was assumed to be the benchmark of comparison (gold standard). Advancing angles measured by TPG and CDG were in statistical agreement with corresponding WBT measurements. In contrast, receding angles from both goniometric techniques were systematically higher than WBT.

Original languageEnglish (US)
Pages (from-to)95-98
Number of pages4
JournalColloids and Surfaces B: Biointerfaces
Issue number2
StatePublished - Jun 25 2005

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry


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