Clifford, C A; Sano, N*; Doyle, P*; Seah, M P (2012) Nanomechanical measurements of hair as an example of micro-fibres analysis using atomic force microscopy nanoindentation. Ultramicroscopy, 114. pp. 38-45.

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Abstract

The control and characterisation of the surface properties of textile and hair fibres at the nanoscale 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 the nanoscale modulus of fibres. Good mounting methods for the fibre that are chemically inert, clean and give strong mechanical coupling to the substrate are important and here we detail two methods to do this. We show, for elastic nanoindentation measurements, when the tip radius affects the result as a function of the ratio of the radii of the tip and fibre. This shows the importance of using an AFM. 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.

Item Type:	Article
Subjects:	Nanoscience Nanoscience > Surface and Nanoanalysis
Identification number/DOI:	10.1016/j.ultramic.2012.01.006
Last Modified:	02 Feb 2018 13:14
URI:	http://eprintspublications.npl.co.uk/id/eprint/5483

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