title: [Effect of ozonated water on physical and chemical properties of vacuum sealing drainage material].
abstract: OBJECTIVE
  To investigate the influence of ozonated water on physical and chemical properties of vacuum sealing drainage (VSD) materials.
  
  
  METHODS
  VSD materials (foam and sealing membrane) were immersed in 10 µg/ml ozonated water for 1 h twice daily for 8 days. The foam appearance and microscopic structure of the materials were observed, and tensile tests and Raman spectrum scan were performed assess the effect of ozonated water. Simulated VSD devices were prepared and tested for leakproofness under negative pressure after ozonated water treatment.
  
  
  RESULTS
  zonated water treatment for 8 days caused no obvious abnormal changes in the foam appearance or microscopic structure of the materials. The maximum tensile load of foam before and after ozonated water treatment was 4.25∓0.73 kgf and 2.44∓0.19 kgf (P=0.000), the momentary distance when the foam torn before and after intervention was 92.54∓12.83 mm and 64.44∓4.60 mm, respectively (P=0.000). The corresponding results for VSD sealing membrane were 0.70∓0.58 kgf and 0.71∓0.08 kgf (P=0.698), and 99.30∓10.27 mm and 100.95∓18.22 mm (P=0.966), respectively. Raman spectroscopy revealed changes in only several wave intensities and no new chemical groups appeared within the scan range of 400-4000 cm(-1). The VSD device was well hermetic after treatment with ozonated water.
  
  
  CONCLUSIONS
  Except for a decreased stretch resistance property of the foam, VSD materials display no obvious changes in physical and chemical characteristics after treatment with ozonated water for 8 days.
authors: Department of Orthopedics and Traumatology, Southern Medical University, Guangzhou, China. hnxyjn@126.com
authors: Nan
authors: N
authors: Jiang
authors: Yunfei
authors: Y
authors: Ma
authors: Qingrong
authors: Q
authors: Lin
authors: Anfu
authors: A
authors: Chen
authors: Peiran
authors: P
authors: Zhao
authors: Guoxin
authors: G
authors: Ni
authors: Bin
authors: B
authors: Yu
mesh_terms: D001697:Biomedical and Dental Materials / Q000737:chemistry*; D004322:Drainage / Q000295:instrumentation* / Q000379:methods; D010126:Ozone; D014618:Vacuum; D014867:Water / Q000737:chemistry*
chemical_list: D001697:Biomedical and Dental Materials; D014867:Water; D010126:Ozone