Photoablation-based Treatment for Bacterial Keratitis Using Immunogold Bioconjugate Nanoparticles

Presenter's Name(s)

Kelly Jacobson

Conference Year

2024

Abstract

Bacterial keratitis, a vision-threatening corneal infection, can rapidly progress without the proper treatment, currently consisting of high frequency antibiotic eyedrop application. We aim to develop a more efficient pulsed plasmonic laser photoablation (PPLP) based therapy utilizing the unique optical properties of gold nanoparticles and the active targeting of Pseudomonas aeruginosa, a common cause of keratitis. The resulting immunogold bioconjugate nanoparticles were characterized based on size and zeta potential analysis. The efficiency of attachment to bacterial cells was investigated by varying the nanoparticle-to-bacteria ratio and incubation temperature. Nanoparticle attachment to the surface of bacteria was quantified using spectroscopy and microscopy techniques.

Primary Faculty Mentor Name

Amber Doiron

Status

Graduate

Student College

College of Engineering and Mathematical Sciences

Program/Major

Biomedical Engineering

Primary Research Category

Engineering and Math Science

Abstract only.

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Photoablation-based Treatment for Bacterial Keratitis Using Immunogold Bioconjugate Nanoparticles

Bacterial keratitis, a vision-threatening corneal infection, can rapidly progress without the proper treatment, currently consisting of high frequency antibiotic eyedrop application. We aim to develop a more efficient pulsed plasmonic laser photoablation (PPLP) based therapy utilizing the unique optical properties of gold nanoparticles and the active targeting of Pseudomonas aeruginosa, a common cause of keratitis. The resulting immunogold bioconjugate nanoparticles were characterized based on size and zeta potential analysis. The efficiency of attachment to bacterial cells was investigated by varying the nanoparticle-to-bacteria ratio and incubation temperature. Nanoparticle attachment to the surface of bacteria was quantified using spectroscopy and microscopy techniques.