The evaluation of skin friction using africtional feel analyzer

Egawa, Mariko; Oguri, Motoki; Hirao, Tetsuji; Takahashi, Masanori; Miyakawa, Michio

doi:10.1034/j.1600-0846.2002.080107.x

Cited by 88 publications

(87 citation statements)

References 17 publications

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“…A constante pesquisa do tecido cutâneo e do emprego de metodologias não-invasivas tem dado origem a diferentes equipamentos para a avaliação dos efeitos dos produtos dermocosméticos (Dikes, 2002;Es-Spiekman, Lucassen, 2000;Smith et al, 2002;Oba et al, 2002;Egawa et al, 2002;Rodrigues, 1997;Zhai et al, 2008, Chilcott, Farrar, 2008, Campos et al, 2008Dujardin et al, 2002).…”

Section: Introductionunclassified

“…M. S. Gonçalves, P. M. B. G. M. Campos 2 As técnicas de biofísica da pele são um dos mais importantes avanços tecnológicos na área da pesquisa dermatológica e tem tido repercussão nas demais áreas direta ou indiretamente a ela relacionadas. Estas técnicas consistem no estudo das características biológicas, mecânicas e funcionais da pele, por meio da medição de determinadas variáveis, por métodos não-invasivos cientificamente comprovados (Wiechers, Barlow, 2000;Pierard et al, 1995;Egawa et al, 2002;Lomuto et al, 1995;Henry et al, 1996;Oba et al, 2002;Silver et al, 2003;Le Fur, 2002;Berardesca, 1994;Benaiges et al, 1998).…”

Section: Introductionunclassified

“…Exemplos claros são as análises da umectação cutânea, do teor de gordura (ou sebo), do valor de pH da superfície cutânea, da medida da perda transepidérmica de água e avaliação do relevo cutâneo (Egawa et al, 2002;Lodén, 2006;Hashimoto-Kumasaka et al, 1993). Além disso, é ainda possível monitorar as condições das camadas mais profundas, como a derme, por meio da determinação das propriedades mecânicas da pele (Zhai et al, 2008, Chilcott, Farrar, 2008Ambroisine et al, 2007).…”

Section: Introductionunclassified

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Aplicação de métodos de biofísica no estudo da eficácia de produtos dermocosméticos

Gonçalves

Campos

2009

Braz. J. Pharm. Sci.

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O trabalho aborda a aplicação dos métodos de biofísica no estudo de eficácia de produtos dermocosméticos. A qualidade de um produto cosmético engloba a segurança de seu uso, a estabilidade da formulação, o aspecto, o sensorial e a sua eficácia. As técnicas de biofísica têm sido amplamente empregadas na avaliação do efeito de formulações dermocosméticas, principalmente devido ao fato de possibilitarem a avaliação de produtos em suas reais condições de uso, ou seja, na pele humana. A comprovação dos efeitos de produtos cosméticos e a elucidação de seu mecanismo de ação por meio de protocolos experimentais devidamente elaborados, que utilizem as técnicas de biofísica da pele, dentre outras, tornam-se de fundamental importância e, assim, a serem amplamente exploradas e ainda bastante desenvolvidas, visando à melhoria da qualidade de vida dos usuários de tais produtos.Unitermos: Produtos dermocosméticos/controle de qualidade. Pele/biofísica/estudo. Biofísica/técnicas/ aplicação em cosmetologia. Cosméticos/eficácia.The authors consider the application of biophysical techniques in the study of cosmetics effectiveness. The quality of a cosmetic product includes the safety of its use, the formulation stability , the visual and other sensorial aspects, and its effectiveness. The biophysical techniques have been widely used in the evaluation of the effect of formulations of topical use, mainly due to the fact of facilitating the evaluation of products in its real use conditions, that is to say, directly in the human skin. The confirmation of the effects of cosmetic products and its action mechanism, by means of experimental protocols properly elaborated using the skin biophysics is of fundamental importance. It should be thoroughly explored and quite developed seeking the improvement of the life quality of users of such products. Uniterms:Dermocosmetic products/quality control. Skin/biophysics/study. Biophysics/techniques/ cosmetologic application. Cosmetics/effectiveness. INTRODUÇÃOO perfil de qualidade de um produto cosmético engloba eficácia e segurança de seu uso, a estabilidade da formulação e o aspecto sensorial. As técnicas de Biofísica da pele têm sido amplamente empregadas na avaliação do efeito de formulações de uso tópico, principalmente por possibilitar a avaliação de produtos em suas reais condições de uso, ou seja, diretamente na pele humana (Hadgraft, 2001; Dujardim et al., 2002;Reuther et al., 2007).A comprovação da eficácia destes produtos é de suma importância para o mercado consumidor, que deseja ver concretizado o apelo de venda que o impulsiona para o ato da compra. Desta maneira, novas metodologias de avaliação desta categoria de produto têm sido continuamente desenvolvidas, com ênfase na comprovação científica dos reais benefícios propostos por estas formulações.A constante pesquisa do tecido cutâneo e do emprego de metodologias não-invasivas tem dado origem a diferentes equipamentos para a avaliação dos efeitos dos produtos dermocosméticos

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Section: Introductionunclassified

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Aplicação de métodos de biofísica no estudo da eficácia de produtos dermocosméticos

Gonçalves

Campos

2009

Braz. J. Pharm. Sci.

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“…The classic Amonton's law (41), which stipulates that the friction coefficient remains unchanged under varying normal loads and speeds of the probe (i.e., the opposing material used to measure the skin friction), was long challenged by numerous research works including some recent ones (36,39), in which the friction coefficient is found to be inversely proportional to load (42).…”

Section: Skin Irritation By Physical Contact/frictionmentioning

confidence: 99%

“…The UMT continuously monitored the friction force of the skin and the normal force applied by the probe to calculate the friction coefficient in realtime. Another commercial device for measuring surface properties of textile materials, a KES-SE Frictional Analyzer (38), was used in skin friction evaluation (39), where the friction coefficient (MIU) and its mean deviation (MMD) were used as the parameter to indicate surface friction. In addition, Tanaks et al launched a study on a device for monitoring skin conditions, including roughness and softness (40).…”

Section: Skin Irritation By Physical Contact/frictionmentioning

confidence: 99%

Textiles and human skin, microclimate, cutaneous reactions: An overview

Zhong¹,

Xing²,

Pan³

et al. 2012

Dermatotoxicology

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This article overviews research in the interdisciplinary area of textile/skin interaction and related cutaneous intolerance. Microclimate in the skin/clothing system and especially the skin responses relates to the moisture and heat transfer within this system and plays a critical role in skin irritation from textiles. A discussion is then given on skin irritation reactions to textiles, including intolerance caused by chemicals (dyes and finishes) and physical contact/friction. Finally, two skin injuries, blisters and pressure ulcers, which are caused by physical contact, pressure, and friction, are documented. Despite the prevalent problems caused by ill textile/skin interactions, minimal efforts have been devoted to this field. In addition, the in vivo experimental studies infrequently lead to a solid conclusion. The cause may lie in the dramatic variation of skin conditions among individuals as well as among different anatomic sites of the same person. Another reason might be the lack of communications between researchers in the areas of textiles and dermatology.Keywords: Textiles; Human skin; Microclimate; Cutaneous reaction; Irritation INTRODUCTIONThe skin is a large barrier organ that protects the human body from environmental hazards (heat, cold, chemicals, mechanical forces, etc.) and maintain the integrity of the body, whereas the clothing system provide an extra layer(s) of barrier to enhance the aesthetic, thermophysiological, and sensorial comfort of the wearer. However, direct contact and interactions between textiles and skin may cause reactions, even damage or diseases. This article overviews research in the interdisciplinary area of textile=skin interaction and related skin reactions and injuries. First, a brief description relates microclimate in the skin=clothing system and especially the skin responses to moisture and heat transfer within this system, because this plays a critical role in skin irritation and intolerance caused by textiles. Then follows a discussion on skin irritation reactions to textiles, including dermatitis caused by chemicals (dyes and finishes) and physical contact=friction. Finally, two skin injuries, blisters and pressure ulcers, which are caused by physical contact, pressure, and friction, are discussed. The role that textiles play in the prevention and formation of these injuries is examined. MICROCLIMATEThe stratum corneum (SC) plays an important role in the clinical appearance of the skin as a result of its water-holding capacity and lipidic content (1,2). From the deeper, highly hydrated layers of the epidermis and dermis, a passive flux of water takes place toward the more superficial SC layers, which have a relatively low water content. This is the so-called transepidermal water loss (TEWL) (3), which is a parameter to evaluate the function of SC as a barrier to prevent excessive water loss.Extensive research work has been published on the topic of TEWL (4À7); however, knowledge about influence of textile materials to TEWL is limited.In 1987, Hatch et al. reporte...

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Influence of the Sebum and the Hydrolipidic Layer in Skin Wettability and Friction

Elkhyat

Fanian²,

Abdou³

et al. 2015

Agache’s Measuring the Skin

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The evaluation of skin friction using africtional feel analyzer

Abstract: Human skin surface friction was measured by using a KES-SE Frictional Analyzer. Judging from the correlation between either MIU or MMD and sensory evaluation, we considered this instrumental analysis to be useful for evaluating the tactile impression of human skin.

Cited by 88 publications

References 17 publications

Aplicação de métodos de biofísica no estudo da eficácia de produtos dermocosméticos

Aplicação de métodos de biofísica no estudo da eficácia de produtos dermocosméticos

Textiles and human skin, microclimate, cutaneous reactions: An overview

Influence of the Sebum and the Hydrolipidic Layer in Skin Wettability and Friction

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