Composite films

Composite films and coatings utilize the combined properties of more than one material, opening up the possibility for realization of materials in the form of film with particular characteristics, which consequently can be employed for various applications such as gas sensing, piezoelectric and magnetic field sensors, smart packaging, protective coatings, etc.

Our research focuses on development of composite films to be applied in colorimetric gas sensors. Namely, we investigate transparent hydrophobic polymer matrices with conductive metallic or metal-oxide particles. Such structures exhibit Local Surface Plasmon Resonance effect, and due to their properties and responsiveness to gases, these composite films are applied in the development of fast and durable sensors for gas monitoring in parts-per-million range.

Second research direction involves application of biopolymer matrices as a part of composite systems. We are developing pH-sensitive composite films based on edible biopolymer and food extracted dyes, to be employed as a smart packaging solution for detection of food spoilage. In addition, we are developing fruit coatings based on biopolymers matrices and essential oil droplets to act as a physical and gas barrier with antimicrobial properties. These coatings extend fruit shelf life by preventing moisture loss and growth of fungi, while being edible, odorless, and entirely transparent.

Projects:

III 44006 Development of new information and communication technologies, based on advanced mathematical methods, with applications in medicine, telecommunications, power systems, protection of national heritage and education, Ministry of Education, Science, and Technological Development of the Republic of Serbia.