Recently, researchers from the Institute of Advanced Study in Science and Technology (IASST), Guwahati, have successfully fabricated a biodegradable nanocomposite film with optical and mechanical properties.The research encompasses the utilization of polymers, which have become essential in various industries due to their adaptability and versatility, spanning from packaging to medical equipment. However, advanced applications like flexible displays and organic LED technology necessitate highly flexible and optically active polymers.
To attain these desired properties, researchers have delved into the incorporation of nanomaterials.
Among the selection of synthetic biodegradable polymers, polyvinyl alcohol (PVA) has emerged as a standout choice. PVA boasts exceptional film-forming capabilities and robust mechanical properties. Furthermore, it can be tailored for optical and mechanical attributes by introducing suitable nanomaterials.The research team successfully created a biodegradable PVA-CuO nanocomposite film using a straightforward solution casting technique, where copper salt served as a precursor for the in-situ formation of CuO nanoparticles under varying heat treatment conditions.This nanocomposite film demonstrated superior optical, mechanical, and antimicrobial features when compared to pure PVA films.
The existence of CuO nanoparticles within the polymer matrix was verified through a range of spectroscopic and microscopic techniques.