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<BLOCKQUOTE><BLOCKQUOTE><BLOCKQUOTE><BLOCKQUOTE><BLOCKQUOTE><DIR>
<B><FONT SIZE=6>Transducer-active Polymers:</FONT><FONT SIZE=4>
</FONT></B><FONT SIZE=4 COLOR="#808080">Responsive Materials in
Chemical and Biological Sensors, Actuators, and Controlled
Release.</FONT>
</DIR></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE>
</BLOCKQUOTE>
<H2 ALIGN=CENTER><FONT SIZE=4>Fall ACS National
Meeting</FONT><FONT SIZE=4 COLOR="#808080">
</FONT><FONT SIZE=4 COLOR="#808080"><A HREF="http://www.acs.org/"><IMG
SRC="gifs/tbullet.gif" WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth
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</FONT><FONT SIZE=4>Washington DC</FONT><FONT SIZE=4 COLOR="#808080">
<IMG SRC="gifs/tbullet.gif" WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth
X-SAS-UseImageHeight ALIGN=bottom> </FONT><FONT SIZE=4>August 20 -
25, 2000</FONT><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0
WIDTH="100%">
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<TD VALIGN=top>
<P ALIGN=RIGHT><FONT SIZE=2>TAP Symposium Home
Page</FONT><A HREF="tap2000.html"><IMG
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</TD><TD>
<P><A HREF="organizers.html"><IMG SRC="gifs/rt_arrow.gif"
WIDTH=24 HEIGHT=24 X-SAS-UseImageWidth X-SAS-UseImageHeight
BORDER=0 ALIGN=bottom></A><FONT SIZE=2>Organizers and
Contact Information</FONT>
</TD></TR>
</TABLE></H2>
<BLOCKQUOTE><H2><B><FONT SIZE=5 COLOR="#808080">Highlights of the
Transducer-active Polymers Meeting</FONT></B></H2>
<P><B><FONT SIZE=4 COLOR="#808080">Topics include conductive polymers
to enhance DNA biochip performance and the use of chemically
responsive polymers to add sensitivity to amperometric chemical and
biological sensors. In the area of drug delivery, chemically and
electrically stimulated controlled release for bioactive molecules
from hydrogels offer promise over passive release devices. Key
speakers include Prof. Alan McDiarmind (UPENN) who will speak on the
fabrication of chemical transducers with sub-micron dimensions, Prof.
Gordon Wallace of the University of Wollongong, Australia, will talk
about DNA-doped polypyrrole and its application in DNA diagnostics
and Dr. Tom Zawodzinski of the Los Alamos National Laboratory who
will talk about artificial muscle for biomedical applications.
</FONT></B></P>
<BLOCKQUOTE><H2><B><FONT SIZE=5 COLOR="#808080"><A HREF="organizers.html"><IMG
SRC="gifs/tbullet.gif" WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth
X-SAS-UseImageHeight BORDER=0
ALIGN=bottom></A></FONT><FONT COLOR="#808080">Symposium organizers
and contact information.</FONT></B></H2>
<H2><B><FONT SIZE=5 COLOR="#808080"><A HREF="sessions.html"><IMG
SRC="gifs/tbullet.gif" WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth
X-SAS-UseImageHeight BORDER=0
ALIGN=bottom></A></FONT><FONT COLOR="#808080">Symposium
sessions.</FONT></B></H2></BLOCKQUOTE>
<H2><B><FONT SIZE=5 COLOR="#808080"><IMG SRC="gifs/tbullet.gif"
WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth X-SAS-UseImageHeight
ALIGN=bottom></FONT><FONT COLOR="#808080">Background to this
symposium:</FONT></B></H2>
<P>Polymers have generally played a significant but passive role in
sensor and actuator devices -- as substrates, as encapsulants, as
packaging materials and as aids in processing. Increasingly there is
interest in polymer materials that serve as active components in
solid state devices or as transduction elements in various sensors
and actuators. This symposium, a follow-on to the successful 1994
symposium of the same name, brings up to date the increasing
attention on polymer materials that are active components in sensors
and actuators and the expanding area of stimulated controlled
release.</P>
<H2><FONT SIZE=5 COLOR="#808080"><A HREF="sessions.html"><IMG
SRC="gifs/tbullet.gif" WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth
X-SAS-UseImageHeight BORDER=0
ALIGN=bottom></A></FONT><B><FONT COLOR="#808080">Topics covered by
this symposium</FONT></B><FONT COLOR="#808080">:</FONT></H2>
<P>Covered in this symposium are key issues such as: polymer material
properties (electrical, electrochemical, electromechanical, and
optical) that are appropriate for sensor and actuator application;
polymer and organic thin film morphology and structure; transduction
devices used in sensors (electrodes, microelectrode arrays, FETs,
SAWs, microbalance, and fiber optic probes); sensor and actuator
configurations using polymers such as in electronic noses, artificial
taste and flavor sensors, and artificial muscles; sensor
interrogation methods; and methods and procedures to confer sensor
specificity, enhance actuator response, etc. Symposium coherence is
found in the use of polymers and organic thin films that are
functional parts of systems used as field-responsive components in
various sensor and actuator applications. Such polymers are capable
of directly transmuting one form of potential energy into another.
Examples include the change in chemical potential energy of an
analyte producing a corresponding change in electrical conductivity,
electrode potential, or current in an electrically conducting
polymer; the dimensional change in a redox active polymer upon
oxidation or reduction producing actuation, the change in mass
associated with a specific polymer-analyte binding reaction; or the
change in water content of a field-responsive hydrogel.</P>
<P>The symposium will include aspects of the following: Preliminary
outline of <A HREF="sessions.html">Sessions</A></P>
<BLOCKQUOTE><DIR>
<FONT SIZE=5 COLOR="#808080"><IMG SRC="gifs/tbullet.gif" WIDTH=12
HEIGHT=12 X-SAS-UseImageWidth X-SAS-UseImageHeight
ALIGN=bottom></FONT>Materials properties appropriate to transducer
action: Ionogenicity; electrical conductivity; dimensional change;
color change.
<P><FONT SIZE=5 COLOR="#808080"><IMG SRC="gifs/tbullet.gif"
WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth X-SAS-UseImageHeight
ALIGN=bottom></FONT>Methods to confer chemical and biological
specificity: Occlusion; specific immobilization; the use of
perm-selective coatings; and synthetic "receptors".</P>
<P><FONT SIZE=5 COLOR="#808080"><IMG SRC="gifs/tbullet.gif"
WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth X-SAS-UseImageHeight
ALIGN=bottom></FONT>Methods of sensor interrogation: Optical fiber
probes; crystal microbalance; electrical impedance;
electrochemical methods; and electronic devices.</P>
<P><FONT SIZE=5 COLOR="#808080"><IMG SRC="gifs/tbullet.gif"
WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth X-SAS-UseImageHeight
ALIGN=bottom></FONT>Various agents used to confer specificity:
Biological agents such as enzymes, antibodies, receptors and DNA
fragments; metal inclusions; inorganic catalysts; macrocycles; and
other binding agents.</P>
<P><FONT SIZE=5 COLOR="#808080"><IMG SRC="gifs/tbullet.gif"
WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth X-SAS-UseImageHeight
ALIGN=bottom></FONT>Aspects of surface science relevant to the use
of transducer-active polymers: Methods of surface preparation;
coating; and immobilization - onto solid state devices.</P>
<P><FONT SIZE=5 COLOR="#808080"><IMG SRC="gifs/tbullet.gif"
WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth X-SAS-UseImageHeight
ALIGN=bottom></FONT>Aspects of technology related to
transducer-active polymers: Reversibility; reproducibility;
processing; stability; selectivity.</P>
<P> </P>
</DIR></BLOCKQUOTE>
<H2> <FONT SIZE=5 COLOR="#808080"><A HREF="organizers.html"><IMG
SRC="gifs/tbullet.gif" WIDTH=12 HEIGHT=12 X-SAS-UseImageWidth
X-SAS-UseImageHeight BORDER=0
ALIGN=bottom></A></FONT><B><FONT COLOR="#808080"> Symposium
Organizers</FONT></B></H2>
<BLOCKQUOTE><P><I>Anthony Guiseppi-Elie</I></P>
<P><I>Norman F. Sheppard</I></P>
<P><I>Gary E. Wnek</I></P>
<P> </P></BLOCKQUOTE></BLOCKQUOTE>
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