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Nanotechnology in Consumer
Products October 31, 2014
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The webinar will begin at 1pm Eastern Time
Nanotechnology in Consumer
Products October 31, 2014
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the National Science Foundation (DUE 1205105).
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Christina Arisio, Ivy Tech Community College of Indiana Since 2013, I have been an assistant professor of Nanotechnology at Ivy Tech Community College of Indiana, South Bend campus. I am currently working to finish a Ph.D. in Chemistry with Dr. Marya Lieberman. My research focuses on the functionalization of Si and GaN semiconductors and III-V (nitride) high electron mobility transistors with silane self-assembled monolayers for biosensor applications. My undergraduate work was done at SUNY Stony Brook (B.S. in Chemistry) with Dr. Stanislaus S. Wong. This research involved the synthesis and characterization of strontium titanate nanocubes. Portions of my undergraduate work were carried out at Brookhaven National Laboratory.
Moderator: Sam Agdasi
Assistant Professor and
Chair, Nanotechnology, Ivy
Tech Community College
Today’s Presenter
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Self-Assembled Monolayers Silane SAM’s for Bioapplications
Surface
Functionalization
and
Characterization
Analyze Sensor
Response to
Target
Christina Arisio
Ivy Tech Community College
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Siloxane SAM’s on GaN and on Si
OTS -
Octadecyltrichlorosilane
APTES -
Aminopropyltriethoxysilane
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Surface Analysis Techniques Water Contact Angle
X-Ray Photoelectron
Spectroscopy (XPS)
Atomic Force Microscopy (AFM)
Mølhave; Opensource Handbook of Nanoscience
and Nanotechnology, AFM (2006)
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Unfunctionalized Clean GaN Surface
Surface
preparation/
treatment is
critical!
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Monolayer Growth
Deposition in Solution
Wang and Lieberman; Langmuir, Vol. 19, No. 4, (2003)
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OTS Functionalized GaN Surface
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APTES Functionalized GaN Surface
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XPS
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Questions?
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DNA Immobilization on APTES
Baur et. al, Appl. Phys. Lett. 89, 183901 (2006)
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DNA Origami Immobilization onto
APTES and TMAC
Goss, V. Adsorbing,
Desorbing, Jamming, and
Burning DNA Origami (2012)
Kim, K. Self-aligned DNA Oligomer and the
Deposition of DNA Oligomers on EBL Patterned
Cationic SAMs on SiO₂/Si [1001] (2012)
TMAC - Trimethyl[(trimethoxysilyl)propyl]ammonium chloride
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Patterned DNA Origami Immobilization
on APTES
Gao, B. PATTERNING BIOMOLECULES AT SUB-30 NM
RESOLUTION BY ELECTRON BEAM LITHOGRAPHY (2009)
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HEMT Structures for Sensor
Applications
HEMT -
High
Electron
Mobility
Transistor
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Ion Sensing SAM’s on HEMT’s
Formylbenzyl-15-crown-5 DPA - Dipicolylamine
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DNA Origami on DPA-Zn-APTES
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Functionalized Device (HEMT)
Structure
• Deposit metal Ohmic contacts on surface for source and drain • APTES functionalization as gate region • APTES modification w. crowns or DPA’s • Expose to solutions of target ions • Measure sensor function
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Enzyme Activity Sensor
Baur et. al, Appl. Phys. Lett. 87, 183901 (2005)
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Functioning Sensor
with another
SAM/Surface
Combination
Kang et. al. J. Appl. Phys. 104, 031101 (2008)
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Conclusions
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Acknowledgements
• Dr. Marya Lieberman and the Lieberman Group
(University of Notre Dame, Dept. of Chemistry) – Dr. Bo Gao
– Dr. Valerie Goss
– Dr. Kyoung Nan Kim
• Dr. Huili Grace Xing (University of Notre Dame,
Dept. of Electrical Engineering)
• The University of Notre Dame – The non-referenced research
presented was performed at the University
of Notre Dame, Dept. of Chemistry.
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Questions?
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