Strong beautiful hair is universally desired across various cultures. Hence, the ways in which cleaning conditioning, grooming and styling processes affect the strength, feel and manageability of hair is of interest to beauty care science and technology. Human hair is a complex nanocomposite biological fiber. In this thesis, experiments are performed to better understand mechanical and electric...

Introduction Human hair is one of many keratinous fibers. Its diameter typically varies between 40 to 150 μm. The surface of a hair fiber is covered with the thin scale-like cells, the so-called cuticle, and the inside of the cuticle is mainly filled with the cortical cells which are composed of the intermediate filaments (IFs) surrounded by the matrix proteins. There are various fiber shapes i...

Each cotton fiber is a single-celled seed trichome or hair, and over 20,000 fibers may develop semi-synchronously on each seed. The molecular basis for seed hair development is unknown but is likely to share many similarities with leaf trichome development in Arabidopsis. Leaf trichome initiation in Arabidopsis thaliana is activated by GLABROUS1 (GL1) that is negatively regulated by TRIPTYCHON ...

In this paper we investigate the application of bounding volume hierarchies in collision detection among densely packed fiber assemblies like hair strands or cable looms. In particular, we glance at collision detection algorithms with sub-quadratic upper bound and their practicability and performance in complex dynamic hair scenes. Unlike common collision detection techniques our approach explo...

In this paper we present a hybrid approach to reconstruct hair dynamics from multi-view video sequences, captured under uncontrolled lighting conditions. The key of this method is a refinement approach that combines image-based reconstruction techniques with physically based hair simulation. Given an initially reconstructed sequence of hair fiber models, we develop a hair dynamics refinement sy...

Global illumination plays an important role for the visual appearance of light colored hair. We present a novel approach based on photon mapping which allows an efficient physically based approximation of multiple fiber scattering in hair volumes. Our technique can also be applied to other fiber geometries like fur or woven cloth.

Overall protein integrity is an important hallmark of healthy hair and has a great impact on the cosmetic value of the hair shaft. Hair is comprised of ~80% protein (predominantly αkeratin) and is not regenerative after it exits the scalp. Therefore, protection of the native hair structure on the protein and fiber levels is critical to ensure good cosmetic properties of the hair. Consumer pract...

In number (16 of 22) of infants in the Dutch laboratory rabbit breeding colony, in aged 45-65 days old, hair loss (alopecia) seen at the top of the head and around a week after the hair fall, was created in a state of complete alopecia. For determination of the cause of hair loss, after the observation and palpation the alopecic area, there have not been any swelling, abscesses, tumors. In skin...

in number (16 of 22) of infants in the dutch laboratory rabbit breeding colony, in aged 45-65 days old, hair loss (alopecia) seen at the top of the head and around a week after the hair fall, was created in a state of complete alopecia. for determination of the cause of hair loss, after the observation and palpation the alopecic area, there have not been any swelling, abscesses, tumors. in s...

We previously demonstrated that whole hair follicles could be cryopreserved to maintain their stem-cells differentation potential. In the present study, we demonstrated that cryopreserved mouse whisker hair follicles maintain their hair growth potential. DMSO better cryopreserved mouse whisker follicles compared to glycerol. Cryopreserved hair follicles also maintained the hair follicle-associa...