Journal of Bacteriology & Parasitology

Marina SR Barreto

Publications

• Research Article
  Production of Chitosan/Zinc Oxide Complex by Ultrasonic Treatment with Antibacterial Activity
  Author(s): Marina SR Barreto, Cristina T Andrade, Edwin G Azero, Vânia MF Paschoalin and Eduardo M Del AguilaMarina SR Barreto, Cristina T Andrade, Edwin G Azero, Vânia MF Paschoalin and Eduardo M Del Aguila
  
  This study was conducted with the objective of investigating the physical and antimicrobial properties of structured zinc oxide compounds in chitosan submitted to different times of ultrasonic treatment. Zinc oxide particles were dispersed in water and coated with medium molar mass chitosan and two other sonicated samples, following a simple methodology. Before drying, the chitosan/zinc oxide water suspensions were characterized by rheological tests. Their rheological behavior depended on the period of time during which the chitosan sample was submitted to ultrasound. After drying, the microparticles were characterized by infrared spectroscopy, atomic absorption spectrophotometry and scanning electron microscopy (SEM). The microparticles were investigated as for their particle size distribution (PSD). SEM and PSD results revealed that the chitosan/zinc oxide microparticles had a multi.. View More»
  DOI: 10.4172/2155-9597.1000330

  Abstract PDF