SELF-DISINFECTING WATERLINE TUBING FOR DENTAL OFFICES
DESCRIPTION: The goal of this new SBIR application is to develop an economical
Dental waterline that resists biofilm formation and growth. The proposed
waterline will utilize a photocatalytic oxidation system to inhibit microbial
growth. Such a system would obviate the need for extraneous chemicals and would
allow continuous cleansing of the waterlines. The photoreactive coating is
composed of a non-toxic compound that is used in consumer products such as
toothpaste and foods.
The application proposes to apply an established technology to this problem.
The general plan is to coat the inside surfaces of the Dental unit waterlines
with a layer of titanium dioxide (TiO2). This compound has been previously
shown to react with UV light to produce products that kill microorganisms by
multiple mechanisms. The products produced by this reaction include reactive
antimicrobial oxygen species, direct electron exchange and photolysis. The
investigators cite Japanese studies that have demonstrated that TiO2
impregnated surfaces harbor fewer bacteria then non-treated surfaces. For
example, laboratory studies have suggested that 99 percent kill ratios for
common pathogenic bacteria over-TiO2-impregnated ceramic tiles with one hour of
typical indoor illumination.
The goal of this application is to design TiO2-coated waterlines, determine the
light propagating properties and physical durability of the prototype tubing,
determine the antimicrobial properties of the coated waterlines and finally
develop a preliminary design and cost assessments for a product.
Two prototype waterlines will be built. The first will be a Teflon-coated
transparent tube with optical fibers spiral-wrapped around the outside of the
tubing. The optical fibers will leak light along its length to catalyze the
TiO2 coating. This will be coated with a protective sheath. A company (Cuda
Corporation of Jacksonville Fl.) has been identified with the ability to
fabricate this prototype.
PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE
Small Business Information at Submission:
Principal Investigator:Craig S. Turchi
ADA TECHNOLOGIES, INC.
8100 SHAFFER PKY, STE 130 LITTLETON, CO 80127
Number of Employees: