2012 PTS/PTNA BIOINTERFACE OCTOBER 2012 1 Low pressure and atmospheric plasma processing: Applications for the life sciences Prepared for: BioInterface Dublin, Ireland October 23-25, 2012 Mikki Larner, Vice President, Sales & Marketing, PTS and Plasmatreat N.Am. [email protected]www.PlasmaTechSystems.com Graham Porcas, Director, Plasmatreat UK [email protected]www.Plasmatreat.co.uk
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2012 PTS/PTNA BIOINTERFACE OCTOBER 20121
Low pressure and atmospheric plasma processing: Applications for the life sciences
Case StudiesPolypropylene activationSterilisationThin film deposition
2012 PTS/PTNA BIOINTERFACE OCTOBER 20124
Company Statistics
110 person global team of scientist, chemists, physicists, engineers and support staff that specialize in LP (low pressure) and AP (atmospheric pressure) gas plasma surface modification.
Combined installation base of 5000+ systems worldwide
2012 PTS/PTNA BIOINTERFACE OCTOBER 20125
LocationsR&D Centers
Great Britian, Bicester
Belmont, California
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Plasma ProcessS t a t e s o f A g g r e g a t i o n
solid liquid
gaseous plasma+
+
**
e-
e-
e-
**
gas molecule
* gas molecule(excited)
*moleculefragment (high-energetic)
temperature
energy
temperature
energy
temperature
energyionsfree electron
+e-
–
+–
–
+
+
2012 PTS/PTNA BIOINTERFACE OCTOBER 20127
Process FlexibilityPlasma Process Technology Modification Example
Atomic level cleaning (ablation)Surface preparation to include removal of organic contaminants.
VacuumAtmospheric
Activation and FunctionalizationPlasmas are used to break surface layer molecularbonds leading to an altered surface chemistry,depending on the process gas.
VacuumAtmospheric
PECVD (Plasma Enhanced Chemical Vapor Deposition)Unsaturated carbon containing gases and liquids, under the influence of a plasma, can be deposited to create unique surface coatings.
VacuumAtmospheric
Crosslinking (casing)With use of an inert chemistry, ability to crosslink top molecular layers of polymer
Vacuum
GraftingAccomplished when introducing species in a non-powered step -- allows attachment of molecules
Vacuum
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Openair® Plasma Technology Overview
feed in of ionisation gas, e.g.air
screen with boreholes
discharge area
voltage supply
plasma jet
electrode
Insulation layer
stainless steel housing
plasma beam: rotating at high potential
plasma beam: rotating at zero potential
substrate
2012 PTS/PTNA BIOINTERFACE OCTOBER 20129Openair® - Plasma-Technology
O
O
N*
* *
*N N
O
N
NN
ON
O
O
N
O
*
*
*
H H H H H H H
C C CCC C C
H H H H H H H
Attack Surface Contamination
2012 PTS/PTNA BIOINTERFACE OCTOBER 201210Openair® - Plasma-Technology
C
O
O
N*
* *
*N N
O
N
NN
ON
O
O
N
O
*
*
*
H H H H H H H
C C CCC C C
H H H H H H H
Remove Surface Contamination
2012 PTS/PTNA BIOINTERFACE OCTOBER 201211Openair® - Plasma-Technology
C
O
O
N*
* *
*N N
O
N
NN
ON
O
O
N
O
*
*
*
H H H H H H H
C C CCC C C
H H H H H H H
Energize The Surface to …
2012 PTS/PTNA BIOINTERFACE OCTOBER 201212Openair® - Plasma-Technology
C
N
O
N
N
N
NN
*
*N
O O
O
O
N*
*
*
*
*
*
H H H H H H H
C C CCC C C
H H
H
H H H
O
O O
Form Functional Sites
2012 PTS/PTNA BIOINTERFACE OCTOBER 201213
AP SYSTEMS
Atmospheric Plasma Tools
2012 PTS/PTNA BIOINTERFACE OCTOBER 201214 14
Chemistry Versatility(chemistries used both in LP and AP Plasma are highlighted)