1930
DOI: 10.1007/bf01936428
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Über ein einfaches Verfahren zur Bestimmung der Wasserstoffionenkonzentration der normalen menschlichen Hautoberfläche

Abstract: Die Untersuohungen der le~zten Jahre ergaben die auffgliige Tatsache, dab die Hautobeffl~che des ~enschen dem iibrigen Organismus gegeniiber verhi~Itnis-m~Big st.ark sauer reagiert. Die biologische Funktion der sauren Reaktion der Hautoberfl~che isg als Schutzvorrichtung aufzufassen, da eine gauze Reihe yon Mikroorganismen nur im neutralen oder sehwaeh alkalischen Milieu den ~6he-punkt ihrer Entwieklung erreicht. Die mikroskopischen Untersuehungen yon Kautschnitten, die yon Unna und Golodetz mit Nilrot als Ind… Show more

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Cited by 18 publications
(2 citation statements)
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“…The indicator was applied to the surface of the skin, recollected in a tube, and the change of color measured by means of a colorimeter. A simplification of this method was foil colorimetry, in which indicator-impregnated sheets of adsorbing strips were placed on the skin with a drop of water [86]. Subsequently, the skin buffering capacity was measured using a highly diluted solution of sodium hydroxide containing a pH indictor that was directly applied onto the skin [87].…”
Section: Instrumentation To Measure Skin Surface Phmentioning
confidence: 99%
“…The indicator was applied to the surface of the skin, recollected in a tube, and the change of color measured by means of a colorimeter. A simplification of this method was foil colorimetry, in which indicator-impregnated sheets of adsorbing strips were placed on the skin with a drop of water [86]. Subsequently, the skin buffering capacity was measured using a highly diluted solution of sodium hydroxide containing a pH indictor that was directly applied onto the skin [87].…”
Section: Instrumentation To Measure Skin Surface Phmentioning
confidence: 99%
“…Keratin is an amphoteric protein with the ability to neutralize acids and alkalis in vitro (8–11, 17, 24–26) and hence may participate in skin's buffering capacity. Scales scraped from normal skin bind small amounts of alkali in vitro (27, 28). However, Vermeer et al showed that water‐soluble constituents of the epidermis participate more in skin's buffering capacity than the insoluble constituents of the skin such as keratin.…”
Section: Skin's Acid Character and Buffer Capacitymentioning
confidence: 99%