Preparation and characterization of polyaniline/sodium alginate-doped TiO2 nanoparticles with promising mechanical and electrical properties and antimicrobial activity for food packaging applications

2020 ◽  
Vol 31 (12) ◽  
pp. 9430-9442 ◽  
Author(s):  
M. M. Abutalib ◽  
A. Rajeh
Keyword(s):  
Antimicrobial Activity ◽  
Electrical Properties ◽  
Tio2 Nanoparticles ◽  
Sodium Alginate ◽  
Food Packaging ◽  
Doped Tio2 ◽  
Mechanical And Electrical Properties

scholarly journals The Physicochemical and Antibacterial Properties of Chitosan-Based Materials Modified with Phenolic Acids Irradiated by UVC Light

2021 ◽  
Vol 22 (12) ◽  
pp. 6472
Author(s):  
Beata Kaczmarek-Szczepańska ◽  
Marcin Wekwejt ◽  
Olha Mazur ◽  
Lidia Zasada ◽  
Anna Pałubicka ◽  
...  
Keyword(s):  
Thin Films ◽  
Antimicrobial Activity ◽  
Ferulic Acid ◽  
Phenolic Acid ◽  
Food Packaging ◽  
Antibacterial Properties ◽  
Force Microscopy ◽  
Atomic Force ◽  
Before And After

This paper concerns the physicochemical properties of chitosan/phenolic acid thin films irradiated by ultraviolet radiation with wavelengths between 200 and 290 nm (UVC) light. We investigated the preparation and characterization of thin films based on chitosan (CTS) with tannic (TA), caffeic (CA) and ferulic acid (FA) addition as potential food-packaging materials. Such materials were then exposed to the UVC light (254 nm) for 1 and 2 h to perform the sterilization process. Different properties of thin films before and after irradiation were determined by various methods such as Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), atomic force microscopy (AFM), differential scanning calorimeter (DSC), mechanical properties and by the surface free energy determination. Moreover, the antimicrobial activity of the films and their potential to reduce the risk of contamination was assessed. The results showed that the phenolic acid improving properties of chitosan-based films, short UVC radiation may be used as sterilization method for those films, and also that the addition of ferulic acid obtains effective antimicrobial activity, which have great benefit for food packing applications.

Characterization of Mechanical and Electrical Properties of Nanocomposites

2013 ◽  
pp. 163-184
Author(s):  
Iren E. Kuznetsova ◽  
Boris D. Zaitsev ◽  
Alexander M. Shikhabudinov
Keyword(s):  
Electrical Properties ◽  
Mechanical And Electrical Properties

scholarly journals Characterization of the water diffusion in GEM foil material

2018 ◽  
Vol 174 ◽  
pp. 03005
Author(s):  
L. Benussi ◽  
S. Bianco ◽  
G. Saviano ◽  
S. Muhammad ◽  
D. Piccolo ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Diffusion Rate ◽  
Moisture Diffusion ◽  
Comsol Multiphysics ◽  
Concentration Profiles ◽  
Detector Performance ◽  
Mechanical And Electrical Properties ◽  
Time Required ◽  
And Diffusion

Systematic studies on the GEM foil material are performed to measure the moisture diffusion rate and saturation level. These studies are important because the presence of this compound inside the detector’ s foil can possibly change its mechanical and electrical properties, and in such a way, the detector performance can be affected. To understand this phenomenon, a model is developed with COMSOL Multiphysics v. 4.3 [1], which described the adsorption and diffusion within the geometry of GEM foil, the concentration profiles and the time required to saturate the foil. The COMSOL model is verified by experimental observations on a GEM foil sample. This note will describe the model and its experimental verification results.

Sign in / Sign up

Export Citation Format

Share Document