Entropy and enthalpy for triggering cutaneous erythema

Steven L. Jacques; Joseph T. Walsh

doi:10.1142/S1793545815500261

Entropy and enthalpy for triggering cutaneous erythema

Steven L. Jacques, Joseph T. Walsh

Biomedical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The molar entropy (ΔS) and molar enthalpy (ΔH) for the denaturation event that triggers cutaneous erythema was determined to be ΔS = 190 J/(mole K) and ΔH = 146.9 × 10³ J/mole. The experiment involved placing heated water against the skin of the forearm, for a range of temperatures and exposure times. Exposing the skin to 45°C for 22 s was at the threshold for producing erythema, which was similar to the threshold for a slight degree of pain.

Original language	English (US)
Article number	1550026
Journal	Journal of Innovative Optical Health Sciences
Volume	8
Issue number	4
DOIs	https://doi.org/10.1142/S1793545815500261
State	Published - Jul 25 2015

Keywords

Skin
enthalpy
entropy
erythema
thermal

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Medicine (miscellaneous)
Atomic and Molecular Physics, and Optics
Biomedical Engineering

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10.1142/S1793545815500261

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title = "Entropy and enthalpy for triggering cutaneous erythema",

abstract = "The molar entropy (ΔS) and molar enthalpy (ΔH) for the denaturation event that triggers cutaneous erythema was determined to be ΔS = 190 J/(mole K) and ΔH = 146.9 × 103 J/mole. The experiment involved placing heated water against the skin of the forearm, for a range of temperatures and exposure times. Exposing the skin to 45°C for 22 s was at the threshold for producing erythema, which was similar to the threshold for a slight degree of pain.",

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author = "Jacques, {Steven L.} and Walsh, {Joseph T.}",

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AU - Walsh, Joseph T.

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AB - The molar entropy (ΔS) and molar enthalpy (ΔH) for the denaturation event that triggers cutaneous erythema was determined to be ΔS = 190 J/(mole K) and ΔH = 146.9 × 103 J/mole. The experiment involved placing heated water against the skin of the forearm, for a range of temperatures and exposure times. Exposing the skin to 45°C for 22 s was at the threshold for producing erythema, which was similar to the threshold for a slight degree of pain.

KW - Skin

KW - enthalpy

KW - entropy

KW - erythema

KW - thermal

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ER -

Entropy and enthalpy for triggering cutaneous erythema

Abstract

Keywords

ASJC Scopus subject areas

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