Mahdi Saleh, PhD, is a nanomaterials research scientist specializing in halloysite nanotube–based delivery systems and advanced functional materials. He earned his doctorate in materials science at Louisiana Tech University, where his research focused on optimizing halloysite morphology for improved payload capacity, skin interaction, and sustained release with demonstrated biocompatibility. He co-authored peer-reviewed publications on the biomedical safety and performance of halloysite systems and led experimental work on HNT loading, release kinetics, and interface behavior. His work supports translation of nanomaterials from laboratory validation to deployable, application-ready technologies.