Surface characterizations of membranes and electrospun chitosan derivatives by optical speckle analysis

Muhammad Rizwan, Yasaman Ganjkhani, Vahideh Farzam Rad, Masoomeh Bazzar, Muhammad Yar, Rosiyah Yahya, Ali-Reza Moradi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
6 Downloads (Pure)


In this paper, we show that laser speckle pattern provides useful information toward revealing discrimination between nanofibers and membranes. Chitosan materials particularly organosoluble chitosan derivatives have a number of applications. The surface characteristics of these materials are very critical for specific applications. The analysis of laser speckles, both numerical and graphical, includes information about the surface structure. The development of digital electronics brought the ease of image processing and has opened new perspectives for a spectrum of laser speckle analysis (LASCA) applications. Our results show reasonable differences between the LASCA parameters of nanofibers and membranes. The methodology may be considered as a quantitative assessment tool for similar samples.
Original languageEnglish
Pages (from-to)132-139
Number of pages8
JournalSurface and Interface Analysis
Issue number4
Early online date6 Dec 2019
Publication statusPublished - Apr 2020


  • chitosan derivatives
  • electrospun nanofibers
  • laser spackle analysis
  • membranes

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