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Biocidal Materials for Public Health and Consumer Products (Overview)

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Title: Biosafe Materials for Anti-Microbial Protection Author: mjdudziak Last modified by: Martin Created Date: 6/2/1995 10:12:36 PM Document presentation format – PowerPoint PPT presentation

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Title: Biocidal Materials for Public Health and Consumer Products (Overview)


1
Biocidal Materials for Public Health and
Consumer Products(Overview)
  • Available Through
  • TETRAD Technologies Group, Inc.
  • Contact Dr. Martin Dudziak, PhD
  • martin_at_forteplan.com
  • (804) 740-0342
  • (757) 847-5511
  • (202) 415-7295 cell

2
An Anti-Microbial Monomer/Polymer Offering
Cleaner, Faster, Safer, More Comprehensive
Anti-Microbial Protection
  • Not a serious toxin and danger like Triclosan
  • Cheaper, faster-acting than silver/copper-based
    compounds
  • Non-leaching stays within the material
  • Extends functional life of product treated
  • Produces self sanitizing materials
  • Can be applied as spray, in solution, or as
    powder

3
Benefits
  • Non- leaching, permanent antimicrobial surface
  • Biocide has been proven to be nontoxic, to
    contain no carcinogens, teratogens, mutagens or
    reproductive toxins
  • Active kills instantly by disrupting the cell
    membrane, eliminating any possibility of
    mutation, adaptation or resistance
  • Broad kill range
  • Environmentally friendly-EPA and FDA approved
  • The technology can be used on wide range of
    materials.
  • Provides both collective and individual
    bio-defense protection.
  • Added cost is modest compared to benefit.
    Approximately 2-5 cents per square foot of
    coating or 5 to 50 cents per pound of plastic or
    resin.

4
Typical Applications
  • Individual and collective protection
  • Clothing, Uniforms, and other Wearable Fabrics
  • Carbon filters
  • Tent Webbing and canvas materials
  • Painted Surfaces
  • Laminate and counter tops in field operations
  • Contamination avoidance
  • Bulk polymer Resins/ Plastics
  • Resin Concentrates
  • Sanitation and Health Safety Equipment
  • Medical treatment
  • Medical Devices
  • Surgical drapes and wound dressings
  • Nano coatings
  • Interior surfaces/ walls floors
  • HVAC ducts
  • Filters

5
Action The Poly-Quat AntimicrobialIs bound to
the product controlling Microbes on contact
  • Is substantive to the product substrate
  • Is not consumed when challenged by microbes
  • Mechanically destroys the cell
  • Will not cause microbial adaptation
  • Functions equally in a nano coating or bulk
    substrate treatment process
  • Can be added into manufacturing process or
    applied later
  • Can be combined with other surface protectants
    (e.g., water repellant, anti-static)

6
The Antimicrobial AgentWhy did we choose this
antimicrobial?
  • 3 (trimethoxysilyl)propyldimethyloctadecyl
    ammonium chloride
  • Unique in the scope of its kill range/broad kill
  • Bacteria (gram positive)
  • Staphylococcus Aureus
  • Bacteria (gram negative)
  • Salmonella Typhosa
  • Yeast
  • Algae
  • Fungi
  • EPA Registered
  • Chemically active

7
Antimicrobial Treatment Improves Fiber Strength

ASTM standard D2256-02 Tensile Strength
8
Antimicrobial JSLIST Fabric
Sample ID Log Kill
(1) JSLIST w/ 0.2 HM-4072 6.48
(2) JSLIST W/ 0.20 HM-4072 Triton X-100 6.47
(3) 65/35 Polyester/cotton W/ 0.2 HM-4072 and 3.6 Zonyl 7040 gt7.41
(3) Boiled in water 5 min 7.22
(3) Laundered 6 times 6.32
(4) 100 Cotton w/ 0.2 HM-4072 and 3.6 Zonyl 7040 7.12
(4) Boiled in water 5 min 7.07
Dynamic Shake Flask Test E. coli, one hour,
sample size 2.5 X 2.5 cm
9
Repeated Exposure of Treated fabric to E. coli
Dynamic Shake Flask Test-E. coli 2.5 cm Sample
One hour contact time
10
Tent Webbing Soil Burial TestPoly Quat
Percent Strength Remaining After Soil Burial
Time Control 1 Poly-QUAT
0 100 100
Week 1 118 105
Week 2 112 105
Week 3 80 99
Week 4 63 120
Week 5 35 99
Week 6 30 108
Week 7 Dis 86
Week 8 Dis 85
Week 9 Dis 76
ASTM 30-1999
11
Antimicrobial Activated Carbon
HM 4072 Poly-Quat Log Kill CTC
0.1 None 77.6
0.25 6.11 73.4
0.5 6.26 75.4
0.05 5.92 75.4
0.01 5.75 77.0
0.25 6.18 78.0
0 (Control) 0 (control) 1.11 E6 (cfu/mL) 79.5
Dynamic Shake Flask Test E. coli, one hour,
sample size 2.5 X 2.5 cm Colony forming units
in starting broth. The control exhibits no kill.
12
Polymer Applications
Material Log Kill 0.2 active
PVC 6.69
HDPE 6.35
Melamine/formaldehyde 7.1
Polyurethane 6.44
PVOH 5.54
Dynamic Shake Flask Test-E. coli 2.5 cm Sample
One hour contact time
Dynamic Shake flask test, E. coli
13
Anthrax Surrogate Bacillus Cereus
Identification Form Log Kill
Textile/PVOH Cells No Kill
Textile/PVOH/L-alanine Cells No Kill
Textile/PVOH/L-alanine Cells No Kill
Textile/PVOH/0.2 HM4072/L-alanine Cells 5.79
PVOH cast film/0.2 HM4072/L-alanine Cells 5.77
PVOH cast film/L-alanine Spores No Kill
PVOH cast film/0.2 HM-4072/L-alanine Spores 4.16
Dynamic Shake Flask Test-E. coli (1.06E06) 2.5
cm Sample One hour contact time
14
Resin Coating Systems
Resin System Poly Quat Log Kill
Water Acrylic Melamine/ Al 0.1 4.73
0.25 5.30
Water Borne Acrylic Urethane/ Al 0.2 3.6
0.4 4.34
0.4 aged 1 week 5.55
Dynamic Shake Flask Test-E. coli 2.5 cm Sample
One hour contact time
15
HM 4072 Sanitizing Nano Coating
Surface Log Kill
Aluminum 0.2 from IPA gt7.08
Aluminum 0.2 from Water 7.08
Aluminum 0.2 From Water Leached 1 Hr 4.55
Aluminum 0.02 from IPA 7.08
Stainless Steel 0.2 From Water 5.90
Glass Slides 0.2 from Water 6.24
Laminate 0.2 from Water 6.31
Dynamic Shake Flask Test-E. coli 2.5 cm Sample
One hour contact time
16
Untreated Control surface
Treated surface
Dead Bacteria
Living Bacteria
Octadecylaminodimethyltrihydroxy-silylpropyl
Ammonium Chloride
C
H
OH
3
-
Cl

HO
Si
N
C
H
3
C
H
3
OH
Substrate surface
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