May 2025 in “Journal of Clinical Medicine” This study suggests that women with alopecia have decreased microcirculation oscillations, which may imply neuroinflammation as a factor in the disease's pathogenesis.
September 2025 in “Clinical Cosmetic and Investigational Dermatology” This review highlights that while moderate physical activity benefits skin health by improving circulation and reducing stress, intense exercise or inadequate protective measures can harm the skin, emphasizing the need for sun protection and personalized care.
147 citations
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September 2001 in “Computer graphics forum” This paper introduces a novel approach to simulate hair dynamics by modeling hair volume as a continuum, effectively treating interaction dynamics as fluid dynamics for realistic hair animation rendering.
June 2026 in “arXiv (Cornell University)” This study investigated the dynamic mechanical properties of fluid-immersed elastic hair beds under oscillatory shear flows, revealing a nonlinear response influenced by driving frequency and amplitude, which impacts mechanosensory signaling stability in biological processes like vasodilation and ciliary remodeling.
This review re-examines hair blowouts as a material science process, where water acts as a plasticizer altering keratin's glass-transition temperature, allowing for temporary hair shaping through a moisture-induced matrix state change under heat and tension.
2 citations
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January 2017 Hair movement can indicate hair quality and health.
Hair movement can indicate hair quality and health.
September 2015 in “Research Portal (King's College London)” This study quantified the effects of chemical treatments like oxidative bleaching and hair relaxing on the movement characteristics of hair strands using a novel high-speed recording method.
10 citations
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November 1984 in “Journal of Colloid and Interface Science” The study found that the Marangoni effect causes the uneven wetting of surfactant-coated hair due to the surfactant moving into the water.
15 citations
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May 2009 in “Chemical Physics Letters” This study demonstrated that a metric based on rotational echo intensity in 2H magic-angle spinning NMR can derive kinetic information for conformational exchange without complex modelling, achieving activation barriers consistent with prior findings.
12 citations
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September 2012 in “Computer Graphics Forum” This study developed a method that combines image-based and simulation techniques to improve the reconstruction of hair dynamics from multi-view videos, enabling accurate hair motion representation and animation.
December 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” This study observed that in live rodents, actin filaments adjust their structure to facilitate membrane transfer between cellular compartments; linear filaments stabilize fused membranes, while branched filaments, connected by the protein Ezrin, drive integration, demonstrating actin's role in adapting to membrane biophysical changes.
1 citations
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January 2026 in “GigaScience” This study introduces Cell Journey, a new platform for visualizing RNA velocity in 3D, which aims to better capture complex cellular transitions in single-cell datasets compared to current 2D methods.
Hair feels different when touched and rubs together in various ways.
The researchers reported that yak hair fibers undergo macromolecular conformational changes and partial slippage of macromolecules during stretching, confirming this as the main stretching mechanism when the stretching ratio is large.
November 2025 in “Nature Communications” This study used a 3D live imaging system to map cell dynamics in human hair follicles, revealing patterns of cell movement and division that help explain hair fiber extrusion during hair growth.
July 2024 in “Journal of Investigative Dermatology” Cell movements and forces shape feather growth in chicken skin.
2 citations
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April 2022 in “PLoS ONE” This study reports that short exposure to vibration causes epithelial cells to retract filopodia, concentrate actin at their edges, and increase expression of the protease calpain, suggesting a mechanism for vibration-induced pain relief.
1 citations
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June 2019 in “IEEJ Transactions on Sensors and Micromachines” This study reports the development of a MEMS silicon-hair device capable of detecting minute forces and moments, replicating the sensory functions of human hair follicles with high sensitivity.
September 2023 in “Journal of Fluid Mechanics” This study developed a model using homogenization-based framework to quantify solvent and solute flow across Janus membranes, aiming to better understand interface phenomena like osmosis and phoresis by examining micro- and macro-scale behaviors.
May 2026 in “Applied Spectroscopy” This study used Raman spectroscopy and wide-angle X-ray scattering to observe two main α-helix to β-sheet transitions in hair keratin under varying humidity levels, finding that water impacts when these structural changes occur, involving a disordered state.
3 citations
,
August 2024 in “The Journal of Cell Biology” This study demonstrated that in live rodents, actin filaments adjust their structure to facilitate membrane transfer between cellular compartments with different biophysical properties.
2 citations
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December 2010 in “PubMed” This study reported that a new two-point bending stiffness method effectively correlated with sensory assessments for hair styling gels but not for hair styling sprays, likely due to differences in polymer/hair composites.
2 citations
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January 2018 in “Biomolecules & therapeutics” This study found that polyamidoamine dendrimers can permeate skin's current conducting pores and alter the magnitude and direction of electroosmotic flow, affecting drug flux during iontophoresis.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study applies the Displacement Framework to explore how hair serves as both a biological and social signal, highlighting the costs of institutional demands for hair straightening in Black communities, which the natural hair movement counters by returning to natural hair.
6 citations
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January 2021 in “Journal of the mechanics and physics of solids/Journal of the Mechanics and Physics of Solids” This study's simulations suggest that biomechanical factors, like follicle geometry and tissue stiffness, are likely significant in hair fiber protrusion, providing a framework for future experimental validation.
2 citations
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August 2019 in “Electronics and Communications in Japan” This study reports a highly sensitive MEMS silicon-hair device that mimics hair follicle functions by detecting minimal forces and moments, including electrostatic attraction and surface tension of liquids.
April 2019 in “Journal of Investigative Dermatology” This study found that bioelectric and biochemical signaling mechanisms coordinate collective cell movement during chicken feather bud morphogenesis, suggesting a potential new angle for research in skin development and wound healing.
2 citations
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January 2002 in “PubMed” This study introduces a new test using a pendulum device to assess the bending stiffness of hair fibers, which can evaluate the effects of different hair treatments.