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Glossary Cationic Polymers

large molecules with positive charges that condition hair

Cationic polymers are large molecules that carry a positive charge. They are often used in hair care products because they can easily bind to the negatively charged surfaces of hair strands, helping to condition and smooth the hair. This positive charge also makes them effective in various industrial applications, such as water treatment, where they help to remove negatively charged contaminants.

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Improvement in Physicochemical Parameters of DPPC Liposomes and Increase in Skin Permeation of Aciclovir and Minoxidil by the Addition of Cationic Polymers

research Improvement in physicochemical parameters of DPPC liposomes and increase in skin permeation of aciclovir and minoxidil by the addition of cationic polymers

61 citations , June 2010 in “European Journal of Pharmaceutics and Biopharmaceutics”

This study found that liposomes coated with cationic polymers, chitosan and Eudragit EPO, showed improved physicochemical stability and enhanced skin diffusion of aciclovir and minoxidil compared to uncoated liposomes.

research Fluorescence Microscopy Study of the Sorption of Cationic Polymers on Hair

1 citations , August 1999 in “ACS symposium series”

In this study, fluorescence microscopy revealed that a cationic cellulose ether derivative adsorbed onto hair fibers desorbed significantly when treated with sodium dodecylsulfate.

research Mucoadhesive Polymer Hyaluronan as Biodegradable Cationic/Zwitterionic-Drug Delivery Vehicle

1 citations , January 2015 in “ADMET and DMPK”

This study observed that hyaluronan's transformation into HA·3Ca and its hydrate increases drug absorption by changing its molecular characteristics, influenced by zwitterionic character and acidic pH.

research Water-Soluble Polymers in Hair Care

3 citations , January 2002 in “Springer eBooks”

This study found that using cationic and non-ionic polymers during alkaline hair relaxer treatments may help strengthen hair and control swelling, potentially reducing damage.

research Enhanced substantivity of hyaluronic acid on keratin substrates via polymer complexation

2 citations , December 1994 in “International Journal of Cosmetic Science”

In this study, the combination of biologically engineered hyaluronic acid and polyquaternium-10 improved hyaluronic acid's retention and moisturizing effects on hair by forming a stable complex that increased binding affinity to keratin.

research Targeted gene delivery to skin cells in vivo: A comparative study of liposomes and polymers as delivery vehicles

68 citations , March 2002 in “Journal of pharmaceutical sciences”

This study found that nonionic liposomes were the most effective vehicle for delivering reporter genes into the skin of rat pups, compared to other liposome and nonliposome formulations.

research Effects of semi-permanent hair dyes and conditioning polymers on the colour enhancing properties of shampoo formulations

November 2016 in “University of the Arts London Research Online (University of the Arts London)”

This study concluded that adding polymeric conditioning actives to shampoos improved color retention in permanently dyed hair, while additional cationic dyes at certain pH levels weakly dyed the hair directly.

research Filtration of Transgenic Sheep Skin Fibroblasts with KAP6.1-GFP-polymerized Spider Dragline Silk Protein Gene(4S)

January 2011 in “Zhongguo nongye Kexue”

This study successfully established a transgenic sheep fibroblast cell line expressing the spider dragline silk protein gene, laying groundwork for developing transgenic sheep with this capability in hair follicles.

An Ultrastructural Study of Hair Fiber Damage and Restoration Following Treatment with Permanent Hair Dye

research An ultrastuctural study of hair fiber damage and restoration following treatment with permanent hair dye

40 citations , February 2002 in “International Journal of Dermatology”

In this study, hair damaged by permanent dye showed signs of recovery over time, with near complete restoration to its original state after eight weeks.

research Prevention of lipid loss from hair by surface and internal modification

17 citations , July 2019 in “Scientific reports”

This study investigated lipid loss in hair caused by surfactants and found that surface and internal modifications can significantly protect different lipids from depletion, with internal modification preventing 52.0 to 81.3% of lipids in certain groups.

research Charge density alterations in human hair fibers: an investigation using electrostatic force microscopy

13 citations , March 2006 in “International Journal of Cosmetic Science”

The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.

research Use of quaternized cassia galactomannan for hair conditioning.

6 citations , March 2008

This study found that high-charge-density cassia HPTC improves deposition efficiency and conditioning benefits in shampoos compared to quaternized guar, suggesting its potential as an alternative or adjunct conditioning agent.

research The analysis of scalp irritation by coacervates produced in hair shampoo via FTIR with focal plane array detector, X‐ray photoelectron microscopy and HaCaT cells

5 citations , August 2016 in “International Journal of Cosmetic Science”

In this in-vitro study, researchers found that shampoo-induced coacervates structurally resemble cationic polymers and contain anionic surfactants that may stimulate the scalp upon exposure to water.

research Structural analysis of human hair fibers under the ultra‐high voltage electron microscope

2 citations , March 2005 in “International Journal of Cosmetic Science”

Human hair structure varies by ethnicity, and certain treatments can improve hair condition and appearance.

research Effects of conditioners on surface hardness of hair fibers: an investigation using atomic force microscopy.

2 citations , January 2004 in “PubMed”

This study concluded that Polyquaternium-10 conditioner softens the surface of the scale face on hair fibers.

research J. Cosmet. Sci., 158, 637–650 (November/December 2007) Use of quaternized cassia galactomannan for hair conditioning

1 citations , September 2008 in “International Journal of Cosmetic Science”

research Microscopic high-resolution digital volumetric imaging of human hair fibers

March 2005 in “International Journal of Cosmetic Science”

This paper discusses the use of Digital Volumetric Imaging with fluorescent dyes to visualize and compare the interior structures of six different virgin hair types, reporting no new clinical results.

research Towards a Better Physical Understanding of Human Hair : Development of Fiber Tribology-Methods at the Micro- and Nanoscale

January 2010 in “EPub Bayreuth (University of Bayreuth)”

This study found that Polyquaternium-87 significantly reduced friction forces on hair surfaces treated with various shampoo formulations, highlighting its potential for improving hair care products.

research Investigation of human hair fibers using lateral force microscopy

43 citations , September 2001 in “Scanning”

Hair treatments like bleaching increase friction by exposing tiny pores on the hair surface.

research Tensile properties of twisted hair fibers

1 citations , March 2005 in “International Journal of Cosmetic Science”

Twisting hair weakens it, but strength can be recovered at low twist levels.

research A reciprocal lattice approach to assessing the luster of hair fibers, based on scattering by periodically deformed cylinders

March 2005 in “International Journal of Cosmetic Science”

A new method helps understand hair shine and various products improve hair care.

research Shampoo compositions

November 2011

This article reviews the roles and types of surfactants and ingredients in modern shampoos, discussing their contributions to cleansing, conditioning, and cosmetic effects, but reports no new experimental findings.

research Stimuli-responsive nanoformulations for CRISPR-Cas9 genome editing

7 citations , August 2022 in “Journal of Nanobiotechnology”

This review discusses recent advances in stimuli-responsive nanoformulations for CRISPR-Cas9 delivery, highlighting their design rationales and potential biomedical applications, but reports no new experimental results.

research Quantifying Polymer Deposition on Hair Fibers by Microfluorometry

1 citations , July 2019 in “Microscopy Today”

This source highlights the utility of cationic polymers in haircare products for protecting against hair damage from chemical treatments and grooming, and describes how microfluorometry can measure polymer deposition and penetration on hair fibers.

research Advances in polymeric nano-delivery systems targeting hair follicles for the treatment of acne

19 citations , July 2024 in “Drug Delivery”

This review discusses how polymer-based nanocarriers can enhance drug delivery targeting hair follicles for acne treatment, focusing on factors affecting this delivery method, combination technologies to improve follicle targeting, and recent advancements in polymer nanodrug-delivery systems.

research Screening of Sheep Fibroblast Cell Line with the Spider Dragline Silk Protein Gene

January 2009 in “Xumu shouyi xuebao”

In this study, researchers successfully established a stable transgenic sheep fibroblast cell line containing an artificially synthesized spider dragline silk protein gene.

research Using polyquaternium-64 to condition damaged hair

1 citations , January 2004 in “Cosmetics and toiletries”

Polyquaternium-64 helps damaged hair look healthy again.

research The adsorption behavior of cationic surfactant onto human hair fibers

42 citations , January 2009 in “Colloids and Surfaces B: Biointerfaces”

This study found that dimethylpabamidopropyl laurdimonium tosylate, a quaternary ammonium surfactant, adsorbs onto human scalp hair with kinetic and isotherm behaviors fitting specific models, changing hair fiber wettability from hydrophobic to hydrophilic.

research Polymeric nanoparticles‐based topical delivery systems for the treatment of dermatological diseases

263 citations , February 2013 in “Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology”

This review discusses nanoparticle-based topical delivery systems for treating skin diseases and presents no new clinical findings; it emphasizes natural polymer-based nanoparticles and future applications like targeted drug delivery.

research Emerging lipid–polymer hybrid nanoparticles for genome editing

10 citations , January 2024 in “Polymer Chemistry”

This review discusses the design and advances of lipid–polymer hybrid nanoparticles as promising delivery systems for genome editing strategies, highlighting their potential in biomedical applications.