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SUMMARY:Sustainable and effective antimicrobial surface coating based on n
 atural cellulose  - Jason Zheng\, University of Birmingham
DTSTART:20220303T113000Z
DTEND:20220303T123000Z
UID:TALK169283@talks.cam.ac.uk
CONTACT:Catherine Pearson
DESCRIPTION:We developed a sustainable and effective antimicrobial surface
  coating based on micro-fibrillated cellulose (MFC). The porous coating is
  hardly noticeable to human eyes due to its sub-micron thickness\, of whic
 h the coverage\, porosity and microstructure can be modulated by the formu
 lations developed. Using goniometers and a quartz crystal microbalance (QC
 M)\, we observed a threefold reduction in water contact angles and acceler
 ated (more than 200%) water evaporation kinetics on the cellulose coating.
  The coating exhibits not only a rapid inactivation effect against SARS-Co
 V-2 in 5 minutes\, following deposition of the virus loaded droplets\, but
  also an exceptional ability to reduce contact transfer of liquid\, e.g. r
 espiratory droplets\, onto surfaces such as artificial skin by more than 9
 0%. Additionally\, the cellulose coating shows nearly 100% resistance to s
 craping in dry condition thanks to its strong attachment to the substrate\
 , whilst good removability once wetted\, suggesting its practical suitabil
 ity for daily use. Importantly\, the coating can be formed on solid substr
 ates readily by spraying and requires solely a simple formulation of a pla
 nt-based cellulose material with no additives\, rendering it a scalable\, 
 affordable and green solution for antimicrobial surfaces.
LOCATION:Open Plan Area\, BP Institute\, Madingley Rise CB3 0EZ
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