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The Incorporation of Color InTO Plasma Enhanced Chemical Vapor Deposition Films

The Incorporation of Color InTO Plasma Enhanced Chemical Vapor Deposition Films. S abina M aza C orpus C hristi ISD D r . D avid S taack A ssistant P rofessor D epartment of M echanical E ngineering. Plasma Engineering and Diagnostics Lab. Tsung-Chan “Cliff” Tsai.

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The Incorporation of Color InTO Plasma Enhanced Chemical Vapor Deposition Films

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  1. The Incorporation of Color InTO Plasma Enhanced Chemical Vapor Deposition Films SabinaMazaCorpus Christi ISDDr. DavidStaackAssistant Professor Departmentof Mechanical Engineering

  2. Plasma Engineering and Diagnostics Lab Tsung-Chan “Cliff” Tsai Dr. David Staack

  3. What is plasma? • 4th state of matter: ionized gas • Most abundant in the cosmos • Made of electrons and ions • Electrically charged particles that respond to electric and magnetic fields

  4. Low-Temp plasma High temp electrons (20000 °F) Cold neutral gas –safe to touch Examples: Plasma in action Natural Auroraeborealis Artificial Fluorescent lamp

  5. - - - - - - - - - - - - - - - - - - - + + + + + + + + + + + Power Supply Plasma Enhanced Chemical Vapor Deposition (PECVD) HV • Characteristics • Non-thermal plasma • Adhesive to varies surfaces • Sterilizer Floating substrate Electrode Film Helium MMA Dielectric tube Plasma jet * * * * * * * * *

  6. MMA Polymerization

  7. Applications • Suitable for live tissues • Polymeric bandage on wounds • Sterilizes

  8. Research Objective To add a dye under PECVD conditions in order to produce a colored film.

  9. Method + CI CI

  10. Setup

  11. Experiments 1 2 6 3 5 4

  12. Data Generated • Conditions to incorporate color indicator onto the film • Color indicator solvent and concentration • Sublimation temperature and gas flow • Power supply • Voltage • Frequency of electricity • Line spectra • Power • Color changes on film (spectral analysis)

  13. Why a color film? • Sensitive to changes in pH or temperature • Could signal • chemical and/or metabolic changes • microbial activity

  14. Summary • Use of low temperature plasma to deposit a film • Film is functional band-aid: compatible with life tissues, sterilizers and protects from re-infection • Film could indicate chemical/metabolic changes or microbial activity

  15. Relatedness to Class Concepts Matter Physical and Chemical Changes Atom and Atomic Theory Ions Bonding Chemical Reactions Solutions pH

  16. Acknowledgements • Enrichment Experience in Engineering (E3) • Dr. David Staack • Tsung-Chan “Cliff” Tsai • Texas A&M University • Mechanical Engineering Department • National Science Foundation (NSF)

  17. Thank you!

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