3 citations
,
April 2011 in “Microscopy research and technique” This study found that hair from ovarian teratomas shares similar chemical composition and morphology with scalp hair, but differs in physical properties and cysteic acid bands.
19 citations
,
May 2008 in “Applied spectroscopy” This study found that human hair cuticle and cortex have different protein structures, with beta-sheet and disorder configurations in the cuticle and alpha-helical structures in the cortex.
18 citations
,
March 2014 in “Drug Development and Industrial Pharmacy” This study evaluated new aqueous gel formulations of minoxidil without irritants and found that the calcium alginate gel showed the best performance in terms of drug release and skin permeation.
15 citations
,
August 2020 in “Analytical chemistry” This study observed that lipids in human hair accumulate in specific areas and do not significantly impact water permeability, highlighting the utility of AFMIR for studying complex biomaterials.
June 2023 in “Experimental dermatology” This study found that pubic hair from Korean males has a thicker cuticle layer with more scales compared to scalp hair, offering better protection against chemical damage, and hypothesizes this evolved as a defense mechanism against exposure to urine and ammonia.
14 citations
,
July 2017 in “Monatshefte für Chemie - Chemical Monthly” This review discusses the analysis of pharmaceutical relics from prehistoric times to the twentieth century and emphasizes the need for a multifaceted approach, but it presents no new experimental results.
6 citations
,
August 2014 in “Spectroscopy Letters” This study reported that the calculated and experimental electronic and vibrational properties of minoxidil were in good agreement, providing detailed insights into its molecular structure and thermal behaviors.
January 2021 in “Asian Journal of Pharmaceutical and Clinical Research” This study examined the effectiveness of FT-Raman spectroscopy for detecting polymorphism in Lamivudine and Finasteride, highlighting its advantages over other methods due to its capability to provide sharp, well-resolved spectral bands and reduced sampling issues.
18 citations
,
January 2008 in “Sen'i Gakkaishi” This study observed that repeated perm treatments decrease disulfide bonds in hair due to their conversion largely into cysteic acid, affecting the waving efficiency depending on the reduction agent used.
36 citations
,
October 2014 in “Langmuir” This study concluded that bleach treatment partly transforms the hydrophobic top layer of human hair cuticles into a hydrophilic surface with clustered cysteic acid, visualized at the nano-scale using dynamic Chemical Force Microscopy.
3 citations
,
January 2018 in “International Journal of Cosmetic Science” In this study, researchers developed a method called the Stiffness-Angle Law and found that hair treated with caffeine-infused shampoo showed a 13.2% increase in stiffness, as measured by their novel evaluation technique.
16 citations
,
December 2016 in “ecancermedicalscience” This study suggests that ATR-FT-IR spectral analysis of hair fibres may detect breast cancer through increased lipid content changes linked to cancer presence.
September 2024 in “Heliyon” In this study, researchers observed that even a single session of hair dyeing can damage hair fibers, with significant worsening of mechanical properties and protein composition after three or more consecutive treatments, emphasizing the need to consider the cumulative impacts of dyeing on hair health.
12 citations
,
April 2023 in “Nano Biomedicine and Engineering” This study synthesized silver nanoparticles using an Artocarpus heterophyllus leaf extract and found that these nanoparticles, with a size of 100–110 nm, displayed effective antioxidant, antibacterial, and antifungal activities in vitro.
6 citations
,
January 1998 in “Journal of Investigative Dermatology” This study found that oxybenzone is very stable under light exposure, contradicting previous findings of its oxidation to semiquinone after solar irradiation.
42 citations
,
January 2011 in “Journal of Biomedical Optics” This study demonstrates that spatially resolved IR and Raman imaging can effectively reveal the molecular structure and composition of untreated human hair, providing insights into its chemistry and structural integrity.
1 citations
,
October 2017 in “ecancermedicalscience” This study observed that the molecular structure of keratins in hair fibres' discrete transition zone differs in breast cancer patients, with altered lipid ester absorption bands reverting post-cancer removal.
1 citations
,
December 2018 in “IntechOpen eBooks” This review discusses the potential of using human hair proteomics for non-invasive diagnostic and forensic applications but reports no new results; the authors highlight areas needing further research.
20 citations
,
March 2020 in “International Journal of Biological Macromolecules” Lower acetylation makes chitin nanofibers thinner and more suitable for various uses.
16 citations
,
August 2004 in “Tetrahedron” In this study, all stereoisomers of cyoctol were synthesized and tested, revealing that contrary to initial patent claims, cyoctol does not function as an anti-androgen.
7 citations
,
April 2018 in “Cosmetics” This study found that the medulla of Japanese hair contains unsaturated lipids such as squalene and oleic acid, which may contribute to hair glossiness.
3 citations
,
September 2021 in “Data in brief” This study observed that bleaching brown human hair with persulfate salts and hydrogen peroxide induced significant conformational changes in keratin, particularly affecting disulfide bridges and oxidized sulfur species, which may inform the development of hair restorative treatments.
32 citations
,
February 2018 in “Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy” This study successfully used ATR FT-IR spectroscopy to uniquely identify or differentiate human hairs by detecting specific spectral features associated with individual hair characteristics and cosmetic residues on hair surfaces.
January 2024 in “International Journal of Cosmetic Science” This study found that 1,4-n-butylene dimaleate can restore the mechanical properties of reduced hair by reconnecting disulfide bonds and improving the hair's structural integrity using a thiol-Michael click reaction, compared to untreated reduced hair.
November 2023 in “Cosmetics” This study evaluated the protective effects of a hair conditioner containing rice derivatives on natural Caucasian hair using various analysis methods and found that the conditioner, especially with rice germ oil GX-N, effectively improved hair properties even under stress conditions like irradiation.
This study explored the structure and function of lipocalin prostaglandin D synthase, revealing its dual role in substrate catalysis and as a lipophilic ligand carrier, potentially informing future drug delivery design.
8 citations
,
January 2011 in “Organic and Biomolecular Chemistry” Minoxidil reacts to nitrosation 7 times more than phenol, mainly due to its -NH₂ groups, leading to the creation of N-nitrosominoxidil.
January 2024 in “Molecules (Basel. Online)” In this study, researchers examined juglone's potential as a restoring agent for hair keratin damaged by permanent or bleaching treatments, finding that juglone formed Michael adducts with cysteine residues, leading to a more regular hair surface as observed via IR spectroscopy and SEM analysis.
21 citations
,
October 2023 in “The Journal of Physical Chemistry C” This study used theoretical calculations to show that phosphates strongly bind to cerium dioxide surfaces in various stable configurations, with spectral signatures identifiable in the infrared and Raman spectra, informing future experimental efforts in controlling the enzymatic activity of ceria nanoparticles.
26 citations
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May 2012 in “Pharmaceutical Development and Technology” PEVs effectively deliver minoxidil through skin.