Presentation
13 March 2024 Antimicrobial blue light activatable optical-tympanostomy tube: a novel alternative to control tympanostomy tube otorrhea
Author Affiliations +
Abstract
Tympanostomy tube otorrhea (TTO) is a frequent complication associated with tympanostomy tube (TT) insertion in young children. Despite the standard treatment using topical antibiotics, TTO is often persistent or recurrent due to biofilm development on TT. In this study, we developed a novel antimicrobial blue light (aBL; 405nm) activatable Optical-TT, which emits aBL from the entire TT surface to kill major otopathogens in biofilms on TT. Our preliminary results showed that the Optical-TT activated by aBL led to over 2.5-log10 CFU reduction in 120 h-old H. influenzae films and 48 h-old P. aeruginosa biofilms formed on TT after 30 J/cm2 aBL and in 48 h-old S. aureus biofilms formed on TT after 60 J/cm2, implying the potential of aBL-activable Optical-TT in the management of TTO. Animal studies using a chinchilla model of TTO are currently underway.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Carolina dos Anjos, Vishakha Sabharwal, Soroush Shabahang, Gizem Dilara Ozdemir, Loc Truong, Yazdani B. Shaik-Dasthagirisaheb, Stephen Pelton, and Tianhong Dai "Antimicrobial blue light activatable optical-tympanostomy tube: a novel alternative to control tympanostomy tube otorrhea", Proc. SPIE PC12822, Photonic Diagnosis, Monitoring, Prevention, and Treatment of Infections and Inflammatory Diseases 2024, PC128220J (13 March 2024); https://doi.org/10.1117/12.3003562
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KEYWORDS
Biofilms

Optical surfaces

Animal model studies

Animals

In vitro testing

Light emitting diodes

Therapeutics

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