Featured Research

from universities, journals, and other organizations

Harmful effects of CFL bulbs to skin; Energy-efficient bulbs safest when placed behind additional glass cover

Date:
July 18, 2012
Source:
Stony Brook University
Summary:
In a new study, researchers looked into the potential impact of healthy human skin tissue (in vitro) being exposed to ultraviolet rays emitted from compact fluorescent light (CFL) bulbs. Results revealed significant levels of UVC and UVA, which appeared to originate from cracks in the phosphor coatings, present in all CFL bulbs studied.

The team of Stony Brook researchers reviews the findings of their research. Pictured from left to right (standing) are Marcia Simon, Michael Hadjiargyrou, (sitting) Tatsiana Mironava and Miriam Rafailovich. The images displayed on the screen are of keratinocytes via confocal microscopy which show the results of human skin cells with and without exposure to CFL.
Credit: Image courtesy of Stony Brook University

Inspired by a European study, a team of Stony Brook University researchers looked into the potential impact of healthy human skin tissue (in vitro) being exposed to ultraviolet rays emitted from compact fluorescent light (CFL) bulbs.

Related Articles


The results, "The Effects of UV Emission from CFL Exposure on Human Dermal Fibroblasts and Keratinocytes in Vitro," were published in the June issue of the journal of Photochemistry and Photobiology.

The researchers, led by Miriam Rafailovich, PhD, Professor of Materials Science and Engineering and the Director of the Garcia Center for Polymers at Engineered Interfaces at Stony Brook, conducted similar research to a European study on Light Sensitivity. Stony Brook researchers collected CFL bulbs purchased from different locations across Suffolk and Nassau counties, and then measured the amount of UV emissions and the integrity of each bulb's phosphor coatings. Results revealed significant levels of UVC and UVA, which appeared to originate from cracks in the phosphor coatings, present in all CFL bulbs studied.

At Stony Brook's Advanced Energy Research and Technology Center (AERTC), the team took the same bulbs and studied the effects of exposure on healthy human skin tissue cells, including: fibroblasts, a type of cell found in connective tissue that produces collagen; and keratinocytes, an epidermal cell that produces keratin, the key structural material in the outer layer of human skin. Tests were repeated with incandescent light bulbs of the same intensity and with the introduction of Titanium Dioxide (TiO2) nanoparticles, which are found in personal care products normally used for UV absorption.

"Our study revealed that the response of healthy skin cells to UV emitted from CFL bulbs is consistent with damage from ultraviolet radiation," said Professor Rafailovich. "Skin cell damage was further enhanced when low dosages of TiO2 nanoparticles were introduced to the skin cells prior to exposure." Rafailovich added that incandescent light of the same intensity had no effect on healthy skin cells, with or without the presence of TiO2.

"Despite their large energy savings, consumers should be careful when using compact fluorescent light bulbs," said Professor Rafailovich. "Our research shows that it is best to avoid using them at close distances and that they are safest when placed behind an additional glass cover."

The research, funded by the National Science Foundation, was a collaboration of Stony Brook University and New York State Stem Cell Science (NYSTEM). Co-authors of the study include: Dr. Rafailovich; Dr. Tatsiana Mironava, Adjunct Faculty, Department of Chemical and Molecular Engineering, Stony Brook University and Senior Research Support Specialist, NYSTEM; Dr. Michael Hadjiargyrou, Professor, Department of Biomedical Engineering, Stony Brook University; and Dr. Marcia Simon, Professor, Department of Oral Biology and Pathology, Stony Brook School of Dental Medicine and the Director of the Living Skin Bank at Stony Brook.


Story Source:

The above story is based on materials provided by Stony Brook University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Tatsiana Mironava, Michael Hadjiargyrou, Marcia Simon, Miriam H. Rafailovich. The Effects of UV Emission from CFL Exposure on Human Dermal Fibroblasts and Keratinocytes in Vitro.. Photochemistry and Photobiology, 2012; DOI: 10.1111/j.1751-1097.2012.01192.x

Cite This Page:

Stony Brook University. "Harmful effects of CFL bulbs to skin; Energy-efficient bulbs safest when placed behind additional glass cover." ScienceDaily. ScienceDaily, 18 July 2012. <www.sciencedaily.com/releases/2012/07/120718122738.htm>.
Stony Brook University. (2012, July 18). Harmful effects of CFL bulbs to skin; Energy-efficient bulbs safest when placed behind additional glass cover. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2012/07/120718122738.htm
Stony Brook University. "Harmful effects of CFL bulbs to skin; Energy-efficient bulbs safest when placed behind additional glass cover." ScienceDaily. www.sciencedaily.com/releases/2012/07/120718122738.htm (accessed October 24, 2014).

Share This



More Health & Medicine News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
WHO: Millions of Ebola Vaccine Doses by 2015

WHO: Millions of Ebola Vaccine Doses by 2015

AP (Oct. 24, 2014) The World Health Organization said on Friday that millions of doses of two experimental Ebola vaccines could be ready for use in 2015 and five more experimental vaccines would start being tested in March. (Oct. 24) Video provided by AP
Powered by NewsLook.com
Doctor in NYC Quarantined With Ebola

Doctor in NYC Quarantined With Ebola

AP (Oct. 24, 2014) An emergency room doctor who recently returned to the city after treating Ebola patients in West Africa has tested positive for the virus. He's quarantined in a hospital. (Oct. 24) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins