Polylactic Acid Piezo-Biopolymers: Chemistry, Structural Evolution, Fabrication Methods, and Tissue Engineering...

Area of Science:

• Biomaterials Science
• Polymer Science
• Biomedical Engineering

Background:

• Polylactic acid (PLA) is an FDA-approved biomaterial valued for biocompatibility, biodegradability, and piezoelectric properties.
• PLA's piezoelectricity is crucial for applications like sensors, actuators, and promoting cell interactions in bio-applications.
• The piezoelectric effect in PLA arises from both crystalline and amorphous states, necessitating detailed investigation.

Purpose of the Study:

• To conduct a comprehensive review of methods for enhancing the piezoelectric properties of PLA.
• To explore the chemical and structural origins of PLA's piezoelectricity.
• To discuss strategies for improving PLA's limitations, such as hydrophobicity and electrical conductivity, for specific applications.

Main Methods:

• Literature review of existing research on PLA piezoelectricity.
• Analysis of chemical and structural factors influencing PLA's piezoelectric response.
• Evaluation of methods to tune PLA's properties for enhanced performance.

Main Results:

• Identified various procedures and modifications that can promote piezoelectricity in PLA.
• Detailed the relationship between PLA's chemistry, structure, and its piezoelectric constant.
• Highlighted the potential for improving PLA's performance through material modifications.

Conclusions:

• Enhancing PLA's piezoelectricity is achievable through targeted chemical and structural modifications.
• Understanding the fundamental origins of piezoelectricity in PLA is vital for optimizing its applications.
• Further research into modifying PLA's properties can unlock its full potential in fields like cardiovascular tissue engineering.