An Chem 153 educational unit on the technique of Soft Lithography

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An Chem 153 educational unit on the technique of
Soft Lithography
UW Nanotechnology User Facility
National Nanotechnology Infrastructure Network
(NNIN)
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The Unit

• Pre-project assessment to gauge students prior
  knowledge and conceptions
• Class discussion overview of technique
• Hands-on laboratory experiment
• Research to understand chemistry behind method
• Research on present future applications
• Student presentations
• Post-project assessment to gauge understanding

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Student Focus Groups

• Well cover the spectrum of topics, with some
  blending between specific aspects of soft
  lithography

Each group will also discuss present applications
and speculate about possible future applications
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Student Focus Groups you become the expert !

• Template preparation stamp production
• Gold/sulfur chemistry immobilization strategies
• Resist Chemistry (positive/negative) surface
  etching methods
• Surface modification, functionalization,
  coupling chemistry (linkers)
• Biological applications
• Materials development
• Solvent assisted monolayers molding
• Imaging, analysis characterization

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Photo-Lithography
Positive Resist the portion of the photoresist
exposed to light becomes soluble to the
photoresist developer. The portion of the
photoresist that is unexposed remains insoluble
to the photoresist developer. Negative Resist is
the opposite
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Understanding the Chemistry behind the methods
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Soft Lithography Overview
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Stamp Production
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Surface Modification Coupling Chemistry
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Surface Etching Topography
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Biological Applications
Microfulidics, cell assays biosensors
Cells tissue engineering
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Materials Development
microelectronics
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Solvent Assisted Monolayers Molding
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Imaging Analysis methodsScanning Electron
Microscopes (SEM)Atomic Force Microscopes
(AFM)other
Starter Reference
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Desired Outcomes

• Discussion with students
• What would you like to get out of this project?
• What can you suggest ?

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Future Applications

• What can you suggest ?

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Starter ReferencesTake note of dates

• IBM Reference
• Sigma Aldrich Ref
• You take over with search words such as soft
  lithgroraphy assay, surface, bioassay,
  coupling, chemistry, modification, analysis,
  microfluidics, imaging, materials, electronics,
  protein, DNA, RNA, enzyme, combinatorial
  library,