Open Access. Powered by Scholars. Published by Universities.®
Nanoscience and Nanotechnology Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Nanoscience and Nanotechnology
Three-Dimensional Printing And Nanotechnology For Enhanced Implantable Materials, Karthik Kumar Tappa
Three-Dimensional Printing And Nanotechnology For Enhanced Implantable Materials, Karthik Kumar Tappa
Doctoral Dissertations
Orthopedic and oro-maxillofacial implants have revolutionized treatment of bone diseases and fractures. Currently available metallic implants have been in clinical use for more than 40 years and have proved medically efficacious. However, several drawbacks remain, such as excessive stiffness, accumulation of metal ions in surrounding tissue, growth restriction, required removal/revision surgery, inability to carry drugs, and susceptibility to infection. The need for additional revision surgery increases financial costs and prolongs recovery time for patients. These metallic implants are bulk manufactured and often do not meet patient's requirements. A surgeon must machine (cut, weld, trim or drill holes) them in order …
Nano Clay-Enhanced Calcium Phosphate Cements And Hydrogels For Biomedical Applications, Udayabhanu Jammalamadaka
Nano Clay-Enhanced Calcium Phosphate Cements And Hydrogels For Biomedical Applications, Udayabhanu Jammalamadaka
Doctoral Dissertations
Biomaterials are used as templates for drug delivery, scaffolds in tissue engineering, grafts in surgeries, and support for tissue regeneration. Novel biomaterial composites are needed to meet multifaceted requirements of compatibility, ease of fabrication and controlled drug delivery. Currently used biomaterials in orthopedics surgeries suffer limitations in toxicity and preventing infections. Polymethyl methacrylate (PMMA) used as bone cement suffers from limitations of thermal necrosis and monomer toxicity calls for development of better cementing biomaterials. A biodegradable/bioresorbable cement with good mechanical properties is needed to address this short coming. Metal implants used in fixing fractures or total joint replacement needs improvements …
Nanoenhanced Additive Manufacturing: Additive Introduction Onto Halloysite Nanotubes And Into 3d Printing Filament For Tailored Material Characteristics, James Connor Nicholson
Nanoenhanced Additive Manufacturing: Additive Introduction Onto Halloysite Nanotubes And Into 3d Printing Filament For Tailored Material Characteristics, James Connor Nicholson
Doctoral Dissertations
With the rapid advancement of additive manufacturing technologies in recent years on both the microscale and the macroscale, research must be done to test the limits of currently available technologies. On the microscale, halloysite nanotubes have proven to be a viable platform for reinforcement of polymers and time release of loaded chemicals, as well as a substrate material for the deposition of nanoparticles. The range of materials are limited due to polarity conflicts, and often lead to wet chemical processes that use more toxic alternatives. Three-dimensional (3D) printing and macroscale additive manufacturing techniques can be used to generate custom structures, …