Abstract:
Oxidative stress is a significant factor in the onset and progression of several diseases, yet current methods for detecting reactive oxygen species (ROS) are limited, especially at clinical stages. My research presents a novel approach using a single-atom nanozyme-based biosensor that enhances both stability and sensitivity. This eco-friendly sensor is developed through a CO₂ laser-assisted synthesis, which simultaneously anchors single metal atoms while creating a laser-scribed graphene support, yielding a durable and efficient platform. This innovative tool shows promise for detecting oxidative stress biomarkers such as hydrogen peroxide, superoxide anion radicals, and nitrites, with potential to advance diagnostic capabilities.

Bio:
Guillermo is a PhD candidate in Bioengineering whose research focuses on creating innovative single-atom nanozyme based biosensors for detecting oxidative stress related biomarkers. Using a CO₂ laser-assisted process, his work aims to develop materials suitable for clinical diagnostics, reflecting his interest in sustainable technologies that bridge laboratory research with real-world applications.
Prior to his PhD, Guillermo earned a master’s degree in Material Science at KAUST and a bachelor’s degree in Nanotechnology and Molecular Engineering at Universidad de Las Américas Puebla, Mexico.