October 2024 in “Acta Biomaterialia” Collagen makes skin stiff, and preservation methods greatly increase tissue stiffness.
The new testosterone detection kit is accurate, cost-effective, and useful for diagnosing diseases.
April 2024 in “arXiv (Cornell University)” STITCH improves suture accuracy and efficiency, especially with human help.
April 2018 in “Journal of Investigative Dermatology” The conclusion is that a new method combining magnetic tweezers and traction force microscopy may help understand skin cell interactions and diseases.
6 citations
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November 2012 in “Hair transplant forum international” The Laxometer helps make hair transplants with many grafts safer.
4 citations
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January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
10 citations
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January 2002 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.
June 2026 in “Virtual and Physical Prototyping” A new method creates precise, stable microscale structures with reduced friction and potential for complex designs.
138 citations
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December 1976 in “Journal of Biological Chemistry” The enzyme from human skin can cross-link proteins and needs calcium to work.
4 citations
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November 2016 in “The Journal of Dermatology” Pili torti hair is fragile due to loose keratin filaments and weak disulfide bonds.
August 2020 in “Textile research journal” The model helps understand how wool fiber structure affects its strength and flexibility.
9 citations
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July 2014 in “Skin research and technology” Stretching damages Caucasian hair's structure more easily than Asian hair.
27 citations
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February 1991 Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.
September 2020 in “Benha Journal of Applied Sciences” Protein hair straighteners damage the hair more than hair dyes.
12 citations
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February 2011 in “Zenodo (CERN European Organization for Nuclear Research)” Hair properties vary with age and ethnic origin.
11 citations
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April 2022 in “Biophysical Journal” Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.
7 citations
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May 2007 in “Nutrition Journal” Hair pluckability is not a reliable method for assessing nutrition.
7 citations
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December 1995 in “The American Journal of Cosmetic Surgery” The O'Connor Tweezer Dexterity Test effectively screens for skilled surgical hair restoration assistants.
2 citations
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April 2019 in “Experimental Dermatology” Hair follicles respond differently to pulling forces in various regions.
1 citations
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April 2021 in “IOP Conference Series Earth and Environmental Science” Two rice strains showed stable high yield and Zinc content in different climates.
Human hair can almost fully recover its structure within about 1,000 minutes after being stretched.
May 2026 in “Applied Spectroscopy” Humidity affects hair structure changes during stretching.
July 2024 in “Journal of Investigative Dermatology” Mechanical tension worsens keloid scars by activating inflammation and fibrosis pathways.
45 citations
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December 2006 in “Biopolymers” Permanent waving weakens hair by altering its protein structure.
22 citations
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January 1985 Water makes hair more flexible, especially the outer layer.
May 2024 in “Ultramicroscopy” Atomic Force Microscopy is a more accurate way to assess hair damage and the effect of cosmetic treatments.
25 citations
,
March 2004 in “Regulatory Toxicology and Pharmacology” Using testosterone-stimulated weanling rats can effectively replace castrated rats for anti-androgen testing, reducing animal stress.
October 2014 in “University of the Arts London Research Online (University of the Arts London)” Protein-derived ingredients can help strengthen bleached hair.
May 2022 in “Голова и шея.” Functional tests and manual muscle testing effectively assess muscle performance in children with health issues.
15 citations
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January 2012 in “International journal of trichology” The HairCheck® device is effective for measuring hair loss and growth in people with alopecia.