Sharp Photocatalytic TechnologyEffects and Safety

Effects

Learn about the proven effects demonstrated through third-party testing.

Antiviral

Novel coronavirus

The infectivity titer of virus*1 after 2 hours of inoculation on the sheet with photocatalyst was reduced by 99.997%*2compared with the sheet without photocatalyst.

Test lab
Biostir Inc.
Supervisor
Professor Hironori Yoshiyama, Faculty of Medicine, Shimane University
Test report No.
15-an-SHPPC-2
Test method
With reference to JIS R 1756:2020
Test conditions
White LED 1,000 lx illumination for 2 hours
Test virus
Novel coronavirus, SARS-CoV-2/JP/Hiroshima-46059T/2020
  • *1 A value that represents the infectivity of a virus to infect cells
  • *2 Converted value by Sharp based on the test result

Novel coronavirus (Omicron Variant)

The infectivity titer of virus*1after 24 hours of inoculation on the glass plate with photocatalyst coating was reduced by 99.98% or more*2compared with the glass plate without photocatalyst coating to an undetectable level.

Test lab
Indian Institute of Science (IISc)
Test report No.
CP 9238/0304/2021
Test method
With reference to JIS R 1756:2020
Test conditions
White LED 1,000 lx illumination for 24 hours
Test virus
Novel coronavirus, SARS-CoV-2 Omicron Variant(Isolate hCoV-19/USA/MD- HP20874/2021,Lineage B.1.1.529;Omicron variant NR-56461, BEI Resources, NIAID, NIH)
  • *1 A value that represents the infectivity of a virus to infect cells
  • *2 Converted value by Sharp based on the test result

Bacteriophage Qβ

The infectivity titer of virus*1 after 4 hours of inoculation on the sheet with photocatalyst was reduced by 99.95%*2 compared with the sheet without photocatalyst.

Test lab
Kanagawa Institute of Industrial Science and Technology
Test report No.
KISTEC03-016A02
Test method
With reference to JIS R 1756:2020, film cover method
Test conditions
Fluorescent light 500 lx (wavelength 380 nm or less was cut) illumination for 4 hours
Test virus
Bacteriophage Qβ, NBRC 20012
  • *1 A value that represents the infectivity of a virus to infect cells
  • *2 Converted value by Sharp based on the test result

Feline enteric coronavirus

The infectivity titer of virus after 24 hours of inoculation on the nonwoven fabric with photocatalyst was reduced by 99.98% compared with the nonwoven fabric without photocatalyst.

Test lab
Kitasato Research Center for Environmental Science
Test report No.
2020_0109
Test sample
Photocatalytic nonwoven fabrics
Test method
With reference to JIS R 1756:2020
Test conditions
White LED 500 lx illumination for 24 hours
Test virus
Feline enteric coronavirus, WSU 79-1683

Antibacterial

Staphylococcus aureus

Number of viable bacteria after 24 hours of inoculation on the sheet with photocatalyst was reduced by 99.99% or more* compared with the sheet without photocatalyst to an undetectable level.

Test lab
Japan Food Research Laboratories
Test report No.
15064805001-0101
Test method
With reference to JIS R 1752:2013
Test conditions
Fluorescent light 1,000 lx (wavelength 380 nm or less was cut) illumination for 24 hours
Test bacteria
Staphylococcus aureus subsp. aureus, NBRC 12732
  • * Converted value by Sharp based on the test result

Escherichia coli

Number of viable bacteria after 24 hours of inoculation on the sheet with photocatalyst was reduced by 99.99% or more* compared with the sheet without photocatalyst to an undetectable level.

Test lab
Japan Food Research Laboratories
Test report No.
15064805001-0101
Test method
With reference to JIS R 1752:2013
Test conditions
Fluorescent light 1,000 lx (wavelength 380 nm or less was cut) illumination for 24 hours
Test bacteria
Escherichia coli, NBRC 3972
  • * Converted value by Sharp based on the test result

Salmonella typhimurium

Number of viable bacteria after 30 minutes was reduced by 99.99% or more to an undetectable level.

Test lab
TUV SUD South Asia Pvt. Ltd.
Test report No.
GGN/F(M)/21/004952
Test method
Onto glass slides inoculated bacterial suspension and added photocatalyst liquid. Took samples at the initial and after illumination for 30 minutes and counted the number of viable bacteria.
Test conditions
White LED 1,000 lx illumination
Test bacteria
Salmonella typhimurium

Shigella flexneri

Number of viable bacteria after 24 hours was reduced by 97.17%.

Test lab
TUV SUD South Asia Pvt. Ltd.
Test report No.
GGN/F(M)/21/004952
Test method
Onto glass slides inoculated bacterial suspension and added photocatalyst liquid. Took samples at the initial and after illumination for 24 hours and counted the number of viable bacteria.
Test conditions
White LED 1,000 lx illumination
Test bacteria
Shigella flexneri

Anti-allergenic

Allergen derived from mites

Activity of allergen after 24 hours in solution with photocatalyst was reduced by 96% or more* compared with solution without photocatalyst to an undetectable level.

Test lab
Biostir Inc.
Test report No.
14-an-SHP-5
Test method
After light irradiation to the mixed solution of photocatalyst and Derf1, the activity of allergen was measured by ELISA method.
Test conditions
White LED 1,000 lx illumination for 24 hours
Test allergens
Allergen derived from mites (Der f 1)
  • * Converted value by Sharp based on the test result

Allergen derived from cedar pollen

Activity of allergen after 1 hours in solution with photocatalyst was reduced by 99.96% or more * compared with solution without photocatalyst to an undetectable level.

Test lab
Biostir Inc.
Test report No.
15-an-SHPPC-1
Test method
After light irradiation to the mixed solution of photocatalyst and Cry j 1, the activity of allergen was measured by ELISA method.
Test conditions
White LED 1,000 lx illumination for 1 hours
Test allergens
Allergen derived from cedar pollen (Cry j 1)
  • * Converted value by Sharp based on the test result

Antifungal

Cladosporium

Under fluorescent light 500 lx (wavelength 380 nm or less was cut), no mold growth was detected by visual observation even after 4 weeks.

Without irradiation With irradiation
Test lab
Hygiene & Microbiology Research Center
Test report No.
2018D-BT-418
Test method
With reference to JIS Z 2911:2010, JIS R 1705:2016
Test mold
Cladosporium cladosporioides, NBRC6348

Safety

Learn about the proven safety demonstrated through third-party testing.

Test item Test results Test lab
Acute oral toxicity test Out of category Frey-Tox
(Germany)
Skin irritation test Negative Frey-Tox
(Germany)
Mutagenicity
(Ames test)		 Negative NISSEI BILIS
(Japan)
Skin sensitization test Negative Fraunhofer
(Germany)
● Some photographs and illustrations on this website are conceptual representations.
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