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Transcript of tecintex
TecInTex:
Technology Integration into Textiles:
Empowering Health
Gerhard Tröster
April 27, 2012 G. Tröster
Structure
• Partners– ETH Zürich Electronics Lab (G. Tröster, G. Salvatore)– EMPA St Gallen, Dübendorf (R.Rossi, M.Heuberger,
F. Clemens)– CSEM Neuchatel (G. Voirin, J. Luprano)– University Hospital Zurich (M. Wolf)– Paraplegic Center Nottwil (U.Baumberger)– industrial partners
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April 27, 2012 G. Tröster 3/
Mission of TecInTex:
Provide the core modules to design and to manufacture sensing and acting textiles
From fibres to clothes to people
Fibres Fabrics Clothes
Evaluation
April 27, 2012 G. Tröster 4/
‚Healthcare Demonstrators‘
• NIRS (Near Infrared Spectroscopy) in socks images O2
– Early detection and treatment of peripheral vascular disease (PVD)
enough O2
lack of O2
• ‚Intelligent‘ underwear for paraplegic people to prevent and to treat ulcer
Light Source
Detector
High decubitus risk pressurehumiditytemperatureoxygenation
April 27, 2012 G. Tröster
Highlights
• E-fibers• O-fibers• E-stripes
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April 27, 2012 G. Tröster
Metal/plasma polymer nanocomposite coatings
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TEM micrographs of Ag/C:H plasma polymer coating with microstructure in the percolation region.
resistivity sensitive to pressure, strain, humidity
April 27, 2012 G. Tröster 7/
PEDOT:PSS Coatings on Metallized Fibers: Process
Uncoated fiber
Coated fiber
PEDOT:PSS
solution
Heater 1
Heater 2
April 27, 2012 G. Tröster 8/
PEDOT:PSS Coatings on Metallized FibersConductivity
PEDOT:PSS with 10% dopant
PEDOT:PSS with 10% DMSO
Doping Multi-Layer
April 27, 2012 G. Tröster 9/
PEDOT:PSS Coatings on Metallized FibersResults
Uncoated silver metallized PA fiber
Thin Coatings on Single Fibers
Uncoated silver metallized PA fiber
30µm100µm
Coated with PEDOT:PSS750 nm
April 27, 2012 G. Tröster 10/
Pressure Sensor based on elastic polymer fibers
www.empa.ch/lpp
applied pressure
out-coupled light
out-coupled lightOptical Fiber
Light Intensity I0Light Intensity I1
0 50 100 150 200 250 300 350 4000%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Time [s]
Nor
mal
ized
sig
nal
Sensitivity 0.2 N/cm to 20 N/cm .
April 27, 2012 G. Tröster
Biosensing using optical fibers
• Monitoring of pH and protease activity on the skin, e.g. in chronic wounds
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April 27, 2012 G. Tröster
pH- Sensing
• pH dyes encapsulated in porous sol-gel
12/
pH
April 27, 2012 G. Tröster
Protease (MMP9) activity detection
• Digestion of colored layer
13/
MMP980 µg/mL
30 µg/mL
200 µg/mL
April 27, 2012 G. Tröster 14/
Prototype for sensing optical fibers
LabView Interface
Fluidic cell
Acquisition card and optics
PD
Real-time pH measurement in 10% blood serum
April 27, 2012 G. Tröster 15/
Opto-electronic components for prototype
Optical couplers
April 27, 2012 G. Tröster 16/
Perfusion measurement with POF
April 27, 2012 G. Tröster
E-Stripes: Thin film technology into textiles
• Planar thinfilm technology – Sensors– Transistors– Integrated circuits
• Small (< 0.5mm) stripes woven into textiles
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April 27, 2012 G. Tröster
Weaving using Production Tools
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• ~ 1.6 m wide• Stripes 1 – 2 mm
April 27, 2012 G. Tröster 19/
Embroidery
45 cm
18 cm
April 27, 2012 G. Tröster
Gas sensors with Carbon-Black:Process flow• Polymers: PVP, PVUB, PIB, PS
20/
April 27, 2012 G. Tröster 21/
Gas sensors: sensitivity
April 27, 2012 G. Tröster 22/
Sensor Fusion (PCA Principal Component Analysis)
April 27, 2012 G. Tröster 23/
IGZO-bendable 1μm-TFTs:
Thin film devices fabricated on flexible plastic substrate
April 27, 2012 G. Tröster
Outlook
• Design and validation of the demonstrators– ethical approval– biocompatibility approval– clinical setting– pilot studies
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