Omid Amiri, Karzan A. Qurbani, Karukh A. Babakr, Peshang Kh. Omer, L. Jay Guo, Hastyar Hama Rashid Najmuldeen, Martin Bertau, Peshawa H. Mahmood, Sangar S. Ahmed, Mohammed A. Jamal
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Memory Effect of Bacteria-Killing Properties of Piezo-Catalysts Nanomaterials through Defect Engineering
This study investigates the effects of piezo-catalysts on sterilizing surfaces. The memory effects in three piezo-catalysts, ZnO, CuO, and SiO2 are discovered, which are produced by a calcination process. After applying mechanical force to these materials, they retain an antibacterial effect for a period of days. With this discovery, it is possible to combat antibiotic-resistant bacteria by using piezo materials on hospital floors or operating rooms that can kill bacteria just by walking on them. The results show that ZnO, CuO, and SiO2 are capable of killing bacteria even after being subjected to mechanical force for 9 days. The memory effect duration can be influenced by a variety of factors, including the calcination temperature, the storage condition after ultrasonication, the drying temperature after ultrasonication, and the solvent in which the piezo-catalyst is ultrasonicated. When ZnO, CuO, and SiO2 are kept under a vacuum in a dark environment, the piezo effect remains almost constant for 11 days after sonication.
期刊介绍：
Advanced NanoBiomed Research will provide an Open Access home for cutting-edge nanomedicine, bioengineering and biomaterials research aimed at improving human health. The journal will capture a broad spectrum of research from increasingly multi- and interdisciplinary fields of the traditional areas of biomedicine, bioengineering and health-related materials science as well as precision and personalized medicine, drug delivery, and artificial intelligence-driven health science.
The scope of Advanced NanoBiomed Research will cover the following key subject areas:
▪ Nanomedicine and nanotechnology, with applications in drug and gene delivery, diagnostics, theranostics, photothermal and photodynamic therapy and multimodal imaging.
▪ Biomaterials, including hydrogels, 2D materials, biopolymers, composites, biodegradable materials, biohybrids and biomimetics (such as artificial cells, exosomes and extracellular vesicles), as well as all organic and inorganic materials for biomedical applications.
▪ Biointerfaces, such as anti-microbial surfaces and coatings, as well as interfaces for cellular engineering, immunoengineering and 3D cell culture.
▪ Biofabrication including (bio)inks and technologies, towards generation of functional tissues and organs.
▪ Tissue engineering and regenerative medicine, including scaffolds and scaffold-free approaches, for bone, ligament, muscle, skin, neural, cardiac tissue engineering and tissue vascularization.
▪ Devices for healthcare applications, disease modelling and treatment, such as diagnostics, lab-on-a-chip, organs-on-a-chip, bioMEMS, bioelectronics, wearables, actuators, soft robotics, and intelligent drug delivery systems.
with a strong focus on applications of these fields, from bench-to-bedside, for treatment of all diseases and disorders, such as infectious, autoimmune, cardiovascular and metabolic diseases, neurological disorders and cancer; including pharmacology and toxicology studies.
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