Hygroscopic materials and characterization techniques for fiber sensing applications: A review

Muhammad Arif Riza, Yun Ii Go*, Robert R. J. Maier, Sulaiman Wadi Harun, Siti Barirah Anas

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)
116 Downloads (Pure)


Various characterization techniques are used in the study of materials in order to understand their properties. Data and observation recording characterization of a material is done by researchers for various properties within various environments. One of the many properties that make a material attractive for use in certain devices is hygroscopicity. Various techniques for characterizing hygroscopicity have been developed and utilized. However, since these techniques are not usually the highlights of studies, there has been limited acknowledgement of the usefulness of hygroscopicity testing. This review introduces several established characterization techniques allowing researchers to fully characterize materials in terms of their hygroscopicity. The full potential of hygroscopic materials can be seen in their use in various fiber sensors. The deformation of materials upon exposure to water molecules can be utilized to perturb sensing elements in fiber sensors, allowing the user to take full advantage of the hygroscopicity of the material.

Original languageEnglish
Pages (from-to)3755-3772
Number of pages18
JournalSensors and Materials
Issue number11
Publication statusPublished - 26 Nov 2020


  • Adsorption
  • Characterization
  • Deliquescence
  • Hygroscopicity
  • Material

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)


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