TY  - Type of reference 
TI  - Biological bioactive film of the propolis: morphological, optical and electrical properties 
AU  - Ferid Mezdari
 
AU  - Mohammed Amine Wederni
 
AU  - Belgacem Tiss
 
AU  - Kamel Khirouni 
AB  - A large number of biological materials have outstanding environmental and technical properties. Propolis is a biological and bioactive honeybees product. We performed investigations on the microstructural, optical, and electrical properties of the propolis films. A stable, bioactive, green, and low-cost thin layers of this biocompatible material were produced. Transmittance spectrum shows that propolis film is opaque for blue and ultraviolet (UV) radiations which are responsible of the food oxidation, nutrient losses, flavor degradation, and discoloration. Propolis film reveals an energy gap of 2.88 eV at room temperature, which enables optoelectronic applications in the UV and blue ranges. The electrical study shows that the propolis film has semiconductor behavior. At low frequency range, a large variation of the conductance (10-8 - 10-5 S) was observed for a small variation of temperature (292 - 348 K). Therefore, the propolis film exhibits potential applications as a safe negative temperature coefficient sensor in bioelectronics. 
DO  - 10.21494/ISTE.OP.2024.1077 
JF  - Entropy: Thermodynamics – Energy – Environment – Economy  
KW  - Biomaterials, Propolis, Thin films, Optical properties, Electrical properties, Bioelectronics, Organic semiconductors, Biomatériaux, Propolis, Couches minces, Propriétés optiques, Propriétés électriques, Bioélectronique, Semi-conducteurs organiques,  
L1  - https://openscience.fr/IMG/pdf/iste_entropie24v5n1_9.pdf 
LA  - en 
PB  - ISTE OpenScience 
DA  - 2024/01/26 
SN  - 2634-1476 
TT  - Film bioactif biologique de la propolis : propriétés morphologiques, optiques et électriques 
UR  - https://openscience.fr/Biological-bioactive-film-of-the-propolis-morphological-optical-and-electrical 
IS  - Special issue IEES 
VL  - 5 
ER  -