TechDesign Silver Knight sheet flooring with
photocatalytic disinfecting surface
Defined problems in healthcare
• The nosocomial (hospital-origin) infections are caused by viral, bacterial
and funghal pathogens.
• Hospital-acquired infections (HAIs) cause extreme extra costs to
healthcare facilities
– About 3 times longer hospital stay
– Three times the cost
– Five times higher risk of in-hospital death
In the US alone, HAIs cause about 1.7 million cases per year (cc. 5%)
The results are approximately 99 000 deaths and an added expenditure in excess of $17
billion a year.(acc. to The Centers of Disease Control and Prevention)
Different dangerous bacteria cause
nosocomial infections
Most dangerous bacteria in hospital environment are:
• MRSA (methillicin-resistant staphilococcus aureus)
•
•
Gram
Enterococcus species (like VRE (Vancomicin Resistant Enterococcus)
positive
bacteria
C-difficile
• E-coli
• Klebsiella species
• Acinetobacter baumanii
Superbugs
Forming spores to survive
on surfaces even under
extreme circumstances
• Pseudomonas aeruginosa
• Enterobacter species (like ESBL)
They are resistant to a large group
of antibiotics
Nanotechnology
80 000th of diameter of a hair
Nanoparticles in an atom
• Nanoparticles have a vast surface area compared to their volume
- at this size, a relatively inert material can become highly reactive
- and less material is needed for same effect
High efficiency, less toxicity, less weight, and/or less cost!
Nanotechnology is used in e.g. cosmetic industry, textile industry, cars, construction
industry , medicine, life sciences and pharmaceutics, …
TechDesign Silver Knight
• Vinyl sheet flooring with active
disinfecting surface
• Dedicated for HealthCare
applications
• Due to the double defense line
build up from nanosilver and
nanoTiO2 particles
Technical
parameters
Standard
Result
Thickness
EN 428
2.0 mm
Wear layer
EN 429
0.7 mm
Chemical
resistance
EN 423
Excellent
Slip resistance
DIN 51130
R9
Classification
EN 685
34/43
Elimination of bacteria
Standard
Result
MRSA
ISO 27447:2009
>99%
VRE
ISO 27447:2009
>99%
ESBL
ISO 27447:2009
>99%
E-coli
ISO 846:1997
>99%
1st line of defense: NanoSilver
• Antibacterial properties of silver have been known for more than
3000 years
• The antibacterial effect results from the ongoing slow diffusion of
silver ions
• The silver ions hinder the process of cell division, secondly
destabilize the cell membrane, walls or plasma and thirdly interrupt
the enzyme’s transport of nutrients
Bacteria can be lastingly
eradicated without the use of
chemicals.
2nd line of defense:
nano Titanium-dioxide
• Titanium dioxide is a photocatalyst
• It helps to transform harmful organic and inorganic substances into
harmless compounds through a chemical oxidation process
• For the function to work, only UV light, oxygen and air humidity are
required
• The level of UV light present in normal day-light is enough
Speeding up the decomposition
process of harmful bacteria and
organic dirt rapidly
Independent laboratory tests of Silver Knight
Changes in quantity of viable bacteria compared to Staphylococcus
aureus bacteria counts after 8 hours on alternate surfaces
%
200.0%
181.4%
150.0%
100.0%
83.8%
71.3%
50.0%
0%
0.0%
Carpet
Ceramic
VCT
Hardwood
Silver Knight
-50.0%
-100.0%
-99.6%
Additional benefits: Self-cleaning
• Nanoscale TiO2 gives hydrophillic properties
• When washing the floor, water runs off in a film rather than droplets,
taking with it any dirt
• Through the photocatalytic reaction any organic dirt will be oxidized
Fewer detergents are required, resulting in
less environmental pollution
Additional benefits:
Air-purifying function for well-being
• The use of nanomaterials makes it possible to improve the
quality of air
• Through photocatalysis smells can be decomposed into their
harmless constituent parts
• The purifying function does not wear off, either
• It works in the same way with case of pollutants such as
nicotine and formaldehyde
TechDesign Silver Knight helps to improve
indoor air quality.
Silver Knight – effective asset in infectioncontrol and protection of environment
•
•
•
•
•
•
•
•
Most effective infection-control
Lower risk of a hospital-acquired infection
Lower risk of longer hospital stay
Less cost per patients
Significantly extended cleaning cycles
Thus reduced personnel and detergents costs
Significantly reduced life cycle cost
Air purifying attribute for well-being
TechDesign Silver Knight floorings help to
create a safer healthcare environment.