NDLI: Photoacoustic Evaluation of Sunscreen Stability: Wind, Water, and the Influence of the Substrates

Content Provider	Springer Nature Link
Author	Pinto, S. B. Barja, P. R.
Copyright Year	2012
Abstract	Sunscreens are designed to protect the skin against damage caused by excessive exposure to ultraviolet radiation—ranging from sunburns and premature aging to skin cancer. The photoacoustic (PA) technique can be employed to analyze topical products like sunscreens. This study aims to characterize the response of commercially available sunscreens subjected to wind and water exposure and applied in two different substrates: pig ear skin and artificial skin (Vitroskin$^{ ® }$). The light source of the experimental setup was a tungsten lamp (250 W) mechanically modulated at 11 Hz. Measurements employed a double-faced, open PA cell with a sapphire window on one side; the opposite side was closed by the sample itself. Initial measurements were performed: (i) before sunscreen application in the sample, and (ii) immediately after sunscreen application. The sample was then immersed in a saline solution for 3 s and exposed to the wind under ambient temperature for 30 min; after that, a new measurement was performed. This cycle was repeated each 30 min, up to a total time of 2 h. Fitting curves (Boltzmann type) for the time evolution of the PA signal were generated with the software Origin$^{ ® }$. After measurements, Vitroskin$^{ ® }$ was found to be a more adequate substrate than pig skin in the analysis of sunscreen stability. Results obtained indicate that the stability is not dependent on the sun protection factor; measurements performed in Vitroskin$^{ ® }$ show good stability of the topically applied products for up to 2 h after sunscreen application, with a fall of less than 40 % in the PA signal amplitude even after exposure to external agents (wind and water).
Starting Page	1870
Ending Page	1875
Page Count	6
File Format	PDF
ISSN	0195928X
Journal	International Journal of Thermophysics
Volume Number	33
Issue Number	10-11
e-ISSN	15729567
Language	English
Publisher	Springer US
Publisher Date	2012-09-30
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Artificial skin Photoacoustic technique Skin Stability Sunscreen Water Wind Condensed Matter Physics Mechanics Physical Chemistry Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Percutaneous Permeation of Topical Phtalocyanine Studied by Photoacoustic Measurements

Photoacoustic Analysis of the Penetration Kinetics of Cordia verbenacea DC in Human Skin

Improved Photoacoustic Generator

Photoacoustic Characterization of Randomly Oriented Silver Nanowire Films

Investigation of Thermal Transport Properties of Porous Silicon by Photoacoustic Technique

Pattern Recognition in Photoacoustic Dataset

Photoacoustic Evaluation of Sunscreen Stability: Wind, Water, and the Influence of the Substrates

A Modified Photoacoustic Piezoelectric Model for Thermal Diffusivity Determination of Solids

Thermal Properties of Porcine Tissues Determined by Modified Photoacoustic Piezoelectric Technique

Photoacoustic Evaluation of Sunscreen Stability: Wind, Water, and the Influence of the Substrates

Similar Documents

Percutaneous Permeation of Topical Phtalocyanine Studied by Photoacoustic Measurements

Photoacoustic Analysis of the Penetration Kinetics of Cordia verbenacea DC in Human Skin

Improved Photoacoustic Generator

Photoacoustic Characterization of Randomly Oriented Silver Nanowire Films

Investigation of Thermal Transport Properties of Porous Silicon by Photoacoustic Technique

Pattern Recognition in Photoacoustic Dataset

Photoacoustic Evaluation of Sunscreen Stability: Wind, Water, and the Influence of the Substrates

A Modified Photoacoustic Piezoelectric Model for Thermal Diffusivity Determination of Solids

Thermal Properties of Porcine Tissues Determined by Modified Photoacoustic Piezoelectric Technique

Photoacoustic Evaluation of Sunscreen Stability: Wind, Water, and the Influence of the Substrates