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Glossary Raman spectroscopy

technique using laser light to analyze molecular vibrations

Raman spectroscopy is a technique used to study the vibrational, rotational, and other low-frequency modes in a system. It involves shining a laser on a sample and analyzing the scattered light to gain information about the molecular composition and structure. This method is valuable in various fields, including chemistry, biology, and materials science, for identifying substances and understanding molecular interactions.

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research Conformational differences in protein disulfide linkages between normal hair and hair from subjects with trichothiodystrophy: A quantitative analysis by Raman microspectroscopy

53 citations , March 2006 in “Biopolymers”

This study suggests that increased amounts of less stable disulfide conformers in hair shafts may be linked to the brittleness observed in trichothiodystrophy.

research Raman Microspectroscopy of Hair Cuticle With Polarized Excitation: Problem of Protein Secondary and Tertiary Structure

January 2025 in “Journal of Raman Spectroscopy”

This study observed that the Raman spectra of human hair cuticle vary with polarization and direction of signal collection, identifying certain spectral bands as markers sensitive to the structural changes in keratin secondary and tertiary structures.

research Discrimination between basal cell carcinoma and hair follicles in skin tissue sections by Raman micro-spectroscopy

25 citations , November 2010 in “Journal of Molecular Structure”

This preliminary study suggests that Raman micro-spectroscopy can help differentiate basal cell carcinoma from hair follicles in skin tissue sections, although some misclassification of hair follicles as carcinoma was observed.

research Experiments in Raman Spectroscopy on Hair Follicles from Females with Androgenetic Alopecia

June 2012 in “International journal of scientific research”

In this study, Raman micro-spectroscopy did not support the hypothesis of structural changes in hair follicles due to miniaturization in women with androgenetic alopecia.

Measuring Changes in Chemistry, Composition, and Molecular Structure Within Hair Fibers by Infrared and Raman Spectroscopic Imaging

research Measuring changes in chemistry, composition, and molecular structure within hair fibers by infrared and Raman spectroscopic imaging

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.

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community 4 Months on Roman 3-in-1 (Topical) — Crown Progress? Switch to Oral or Dutasteride?

4 upvotes 8 months ago

The user has been using Roman 3-in-1 topical treatment (finasteride 0.3%, minoxidil 6%, tretinoin 0.025%) and a 0.25 mm dermaroller for four months to address crown thinning. They are seeking advice on whether to continue with the current regimen, switch to oral finasteride, or try dutasteride for better results.

community Cheaper alternative to Roman spray?

in Product 2 upvotes 2 years ago

A user has had great results with a spray containing 6% minoxidil, 0.03% finasteride, and 0.25% tretinoin from Roman but is seeking cheaper alternatives with the same ingredients. They are looking for suggestions for more affordable sites or pharmacies.

community Stop supporting Keeps and Roman, they’re price gouging you

in Finasteride/Dutasteride 360 upvotes 3 years ago

The post discusses the high cost of hair loss treatments from companies like Keeps and Roman, and suggests cheaper alternatives like GoodRx. Users share their experiences with different providers, costs, and methods of obtaining finasteride, a common hair loss treatment.

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Hair Transplant
Dr. Raman SharmaKarol Bāgh, Delhi · IN

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