Investigation of dyed human hair fibres using apertureless near-field scanning optical microscopy.

@article{Formanek2006InvestigationOD,
  title={Investigation of dyed human hair fibres using apertureless near-field scanning optical microscopy.},
  author={Florian Formanek and Yannick De Wilde and Gustavo S Luengo and Bernard Querleux},
  journal={Journal of microscopy},
  year={2006},
  volume={224 Pt 2},
  pages={197-202}
}
We present the first studies of dyed human hair fibres performed with an apertureless scanning near-field optical microscope. Samples consisted of 5-microm-thick cross-sections, the hair fibres being bleached and then dyed before being cut. Hair dyed with two molecular probes diffusing deep inside the fibre or mainly spreading at its periphery were investigated at a wavelength of 655 nm. An optical resolution of about 50 nm was achieved, well below the diffraction limit; the images exhibited… CONTINUE READING

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