July 2016 in “Indian journal of science and technology” Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.
October 1982 in “American Journal of Nursing” Wound healing is a complex process involving different cells and stages, leading to scar tissue formation and strength increase over time.
32 citations,
February 2018 in “Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy” Cosmetic residues on individual hairs can be identified and differentiated using ATR FT-IR microspectroscopy.
February 2023 in “European biophysics journal” 56 citations,
February 2015 in “F1000 prime reports” Root hair growth in plants is a complex process controlled by many factors working together.
15 citations,
January 2018 in “Advances in experimental medicine and biology” Keratin proteins are crucial for hair growth and structure.
5 citations,
October 2022 in “Cosmetics” Cell-based models help test if cosmetic ingredients really work for hair growth and skin health.
5 citations,
February 2022 in “Acta Biomaterialia” Nanomaterials can improve hair care products and treatments, including hair loss and alopecia, by enhancing stability and safety, and allowing controlled release of compounds, but their safety in cosmetics needs more understanding.
5 citations,
January 2018 in “International Journal of Trichology” Hair strength is similar across different scalp areas, and not affected by age, gender, or hair thickness.
2 citations,
August 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” A specific mutation in the K25 gene causes a rare genetic disorder with curly hair at birth and later hair loss, along with dental issues.
1 citations,
June 2023 in “Journal of applied crystallography” The technique showed that human hair has two main parts, with 68% being rigid and the rest flexible, and water swelling affects its structure.
12 citations,
January 2014 in “Cell structure and function” Different combinations of human hair keratins affect how hair fibers form.
37 citations,
August 2014 in “Journal of experimental botany” A gene in Arabidopsis thaliana, AtPRPL1, affects root hair length but not cell wall composition.
17 citations,
December 2002 in “Biochemical and biophysical research communications” Scientists found out how a specific protein in human hair cuticles behaves and is structured.
January 2024 in “Frontiers in plant science” The zinc finger protein 3 in Arabidopsis thaliana reduces plant growth and root hair development.
9 citations,
January 1989 in “Sen'i Gakkaishi” Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.
12 citations,
March 2019 in “Lasers in Surgery and Medicine” Low-level laser therapy improves hair growth and dermal papilla cell function.
13 citations,
April 2018 in “Scientific Reports” The genes KRT25 and SP6 affect curly hair in horses, with KRT25 also causing hair loss. If both genes are mutated, the horse gets curly hair and hair loss. KRT25 can hide the effect of SP6.
11 citations,
April 2022 in “Biophysical Journal” Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
January 2024 in “Seven Editora eBooks” Different techniques measure hair properties to ensure cosmetic products work.
December 1991 in “Annals of the New York Academy of Sciences” Keratin proteins are crucial for hair structure and strength.
13 citations,
May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
12 citations,
January 2007 in “Current problems in dermatology” Environmental and cosmetic factors, including heat, chemicals, and sun exposure, can cause hair loss and damage.
July 2011 in “Microscopy and microanalysis” Human hair's structure makes it tough and resistant to breaking.
193 citations,
January 2015 in “International journal of trichology” Dermatologists need to understand hair products to treat hair and scalp issues better.
36 citations,
January 2014 in “Elsevier eBooks” The skin is a complex barrier that protects the body, regulates temperature, and helps with immune responses.
18 citations,
November 2010 in “Journal of morphology” Antler velvet hair and body hair of red deer have different structures that help with protection and insulation.
14 citations,
March 1995 in “Journal of cell science” SV40 T antigen in hair follicles causes abnormal hair and health issues in mice.
8 citations,
May 2004 in “Textile Research Journal” Scientists made antibodies to tell cashmere and wool apart, which could improve how we identify animal fibers.