Biodegradable Scaffolds with Enhanced Conductivity, EMI Shielding, and Mechanical Strength

Polylactic acid (PLA) is a biocompatible material widely used in 3D printing. However, its application in bone tissue engineering is limited due to slow degradation and inadequate mechanical strength. To address this, we propose a conductive, biodegradable scaffold incorporating calcium carbonate (CaCO3) to improve mechanical properties. Conductive elements, such as carbon-based materials, are added to enhance electrical conductivity, which aids bone repair and regeneration by delivering electrical stimuli. A novel feature of this study is the integration of electromagnetic interference (EMI) shielding into the scaffolds to ensure precise electrical stimulation, even in the presence of external electromagnetic fields. This composite mimics the natural conductivity of bone (0.07–0.02 S.m-1), while offering enhanced mechanical strength and EMI shielding. The scaffold will be fabricated using 3D printing, optimizing both mechanical and electrical performance for bone repair applications. The EMI shielding properties and conductivity of the composite will be studied through machine learning method. This research offers a sustainable approach to producing multifunctional materials, benefiting Northern Canada by fostering innovative, resource-efficient models for advanced healthcare solutions.

Faculty Supervisor:

Uttandaraman Sundararaj

Student:

Partner:

University of California, Berkeley

Discipline:

Engineering

Sector:

Education

University:

University of Calgary

Program: