November 9, 2022
Certain cleaning compounds work best in ridding smartphones of allergens
LOUISVILLE, KY (November 10, 2022)– According to the 2018 U.S. Census, smart phones are present in 85% of American households. They are reportedly viewed 14 million times a day, making them potential receptacles for environmental hazards such as allergens. A new study being presented at this year’s American College of Allergy,Asthma is a chronic, inflammatory lung disease characterized by recurrent breathing problems. People with asthma have acute episodes where the air passages in their lungs get narrower, and breathing becomes more difficult. Sometimes episodes of asthma are triggered by allergens, although infection, exercise, cold air and other factors are also important triggers." rel="tooltip">Asthmaand Immunology (ACAAI) Annual Scientific Meeting in Louisville, KY, showed elevated levels of cat and dog allergens, as well as β-D glucans (BDG) and endotoxin on simulated phone models.
“Smartphones showed elevated and variable levels of BDG and endotoxin, and cat and dog allergens were found on smartphones of pet owners” says Hana Ruran, lead author on the study. “BDGs are found in fungal cell walls and have been found in many environments and surfaces causing chronic airway and irritant symptoms – making BDGs a consistent marker to study problematic mold. Endotoxin is a potent inflammatory agent and a marker of exposure to Gram negative bacteria.”
The researchers created phone models that had a similar size and surface to a real phone and the front surface of the phone model was wiped as part of the test. Electrostatic wipes (ESW) were used to sample simulated phone models of 15 volunteers and the “phones” were then measured for allergens, BDG and endotoxin levels.
的切micals used in the mixture solutions for cleaning (chlorhexidine, cetylpyridinium chloride, tannic acid and benzyl benzoate) can be purchased through laboratory or chemical suppliers but are not commercially available in the same concentrations as used in the study. Isopropyl alcohol wipes were also tested for their cleaning properties.
“Combination chlorhexidine/cetylpyridinium was the most effective in reducing BDG and endotoxin and combination benzyl benzoate/tannic acid most effectively reduced cat and dog allergens on smartphones,” says Peter Thorne, PhD, professor in the University of Iowa Department of Public Health and co-author of the study. “The study demonstrates exposure to inhalant allergens and molecules that trigger innate immune reactions from a source most people haven’t considered. If you have allergies or asthma, you may want to think about cleaning your smartphone more often to minimize exposure to these allergens and asthma triggers.”
Abstract Title: Innovative Compounds to Reduce β-D glucans, Endotoxin, and Allergens Newly Discovered on Smartphones
Presenter: Hana Ruran
For more information about severe allergies and速发型过敏反应, or to find an allergist in your area, visitAllergyandAsthmaRelief.org. ACAAI Annual Scientific Meeting takes place Nov. 10-14. For more news and research from ACAAI Scientific Meeting, go to ournewsroom– and follow the conversation on Twitter#ACAAI22.
About ACAAI
ACAAI is a professional medical organization of more than 6,000 allergists-immunologists and allied health professionals, headquartered in Arlington Heights, Ill. The College fosters a culture of collaboration and congeniality in which its members work together and with others toward the common goals of patient care, education, advocacy, and research. ACAAI allergists are board-certified physicians trained to diagnose allergies and asthma, administerImmunotherapy is a form of preventive and anti-inflammatory treatment of allergy to substances such as pollens, house dust mites, fungi, and stinging insect venom. Immunotherapy involves giving gradually increasing doses of the substance, or allergen, to which the person is allergic. The incremental increases of the allergen cause the immune system to become less sensitive to the substance, perhaps by causing production of a particular "blocking" antibody, which reduces the symptoms of allergy when the substance is encountered in the future." rel="tooltip">immunotherapy, and provide patients with the best treatment outcomes. For more information and to find relief, visitAllergyandAsthmaRelief.org. Join us onFacebook,Pinterestand推特.
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