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Perming and bleaching damage hair differently, with bleached hair having more cysteic acid in the cuticle.

Elemental composition of hair affects its x-ray diffraction patterns.

X-ray microscopy can non-invasively show hair structure changes after treatments, but it's less detailed than TEM and needs improvement.

The research found that the properties of solid-state Electronic Circular Dichroism (ss-ECD) are influenced by the orientation of local crystals, which could help in examining and mapping chiral materials like pharmaceutical ingredients.

The new X-ray technique allows for precise and non-destructive measurement of elements in hair, creating the first database of its kind for a specific ethnic group.

PXX is an effective and affordable photocatalyst for creating new chemical bonds in organic synthesis.

SEM/EDX can analyze hair elements but struggles with trace elements, limiting its forensic use.

The method effectively maps lead and zinc in hair, aiding understanding of heavy metal exposure risks.

Cosmetic residues on individual hairs can be identified and differentiated using ATR FT-IR microspectroscopy.

Trace elements like calcium, iron, and zinc are unevenly distributed in hair, while sulfur is even, and increased phosphorus and potassium levels are linked to skin reactions.

Sunlight and chemical treatments change hair's internal structure differently, needing specific care.

The method allows precise cell removal without harming nearby tissues.

Photoacoustic imaging can detect prostate brachytherapy seeds better with enhanced contrast methods, but depth limits remain.

A new method was developed to accurately detect and measure 47 different drug ingredients in various products.

Near-infrared probes can safely and effectively image cysteine protease activity for disease diagnosis.

Lead levels in hair increased due to environmental exposure, while iron, copper, and zinc levels stayed stable.

Whole hair strands can reliably measure gamma ray exposure using ESR techniques, but samples should be analyzed quickly or stored in liquid nitrogen.

These methods help understand cell structures and reactions.

Pyrene excimer nucleic acid probes are promising for detecting biomolecules accurately with potential for biological research and drug screening.

Keratinous tissues have multiple structural layers, including ordered keratin and lipid granules.

Dye mainly stays on the hair surface and endocuticle.

Microbeam radiation therapy's dose distribution changes with depth.

Polarized Raman spectra can reveal changes in hair keratin's protein structures.

Probe detects finasteride with high selectivity and low detection limit.

Iron oxide nanoparticles improve skin penetration and drug release for hair loss treatment.

Biomimetic cell membrane-coated scaffolds significantly enhance tissue regeneration by mimicking natural cellular environments.