Nanomechanical measurements of hair as an example of micro-fibre analysis using atomic force microscopy nanoindentation

Ultramicroscopy
Charles A CliffordMartin P Seah

Abstract

The characterisation of nanoscale surface properties of textile and hair fibres is key to developing new effective laundry and hair care products. Here, we develop nanomechanical methods to characterise fibres using an atomic force microscope (AFM) to give their nanoscale modulus. Good mounting methods for the fibre that are chemically inert, clean and give strong mechanical coupling to a substrate are important and here we detail two methods to do this. We show, for elastic nanoindentation measurements, the situation when the tip radius significantly affects the result via a function of the ratio of the radii of the tip and fibre and indicate the importance of using an AFM for such work. A valid method to measure the nanoscale modulus of fibres using AFM is thus detailed and exampled on hair to show that bleaching changes the nanoscale reduced modulus at the outer surface.

References

Mar 31, 1998·Micron : the International Research and Review Journal for Microscopy·L N Jones, D E Rivett
Sep 3, 2003·Journal of Microscopy·G PolettiE Barborini
Jul 3, 2004·Journal of Microscopy·S P GurdenM M C Ferreira
Jan 5, 2005·Micron : the International Research and Review Journal for Microscopy·J M Maxwell, M G Huson
Aug 23, 2005·Ultramicroscopy·Guohua WeiPeter M Torgerson
Nov 18, 2006·Journal of Colloid and Interface Science·Vincent DupresFrédéric Leroy
Jun 1, 1991·International Journal of Cosmetic Science·J A Swift
Sep 24, 2010·The Journal of Dermatology·Mi-Sook JeongKi-Young Lee
Jan 1, 1997·Journal of Research of the National Institute of Standards and Technology·J S Villarrubia

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Citations

Oct 31, 2015·Ultramicroscopy·Yongda YanXuesen Zhao
Aug 21, 2015·International Journal of Cosmetic Science·W TangS R Ge

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