My research is on the I on exchange
properties of poly viral violators.

And basically the whole layout
of the experiment is that

there is a micro lecture on which

there are a platinum Microelectronics and
on these platinum micro lecture.

I deposit.

A layer of conducting neutral.

Poly pyro.

And on top of this poly I deposit
a insulating layer of T.T.C.

eleven which is just
another type of Pyra will.

And this has a.

Negatively charged POS an acre Bonnett and
this group

can be used to bind to things
such as metal ions and

in our lab are primarily using
this to bind to magnesium and

using the magnesium to bind to D.N.A.
to use these as C.N.A. sensors and

as far as my specific research
goes I'm studying the effects of

ionic solutions and
the islands in solution and

how they affect the layer as in
terms of electro chemical signaling.

And.

So the system that I'm using the is
a three electrode system with the working

electrode which is the microarray pot and
I'm a counter electrode and

silver silver chloride
reference electrode and.

The basic mode that I'm
studying this is through.

C V's cyclical to my grams and

the cyclical to my grams are basically
where you take a range of potential and

in this case I'm going from negative eight
hundred mil volts to four hundred mobile.

And use Scan.

The.

The array at from like a negative
potential to a positive and

back to negative and
you can do this multiple times and.

Through this you can study
the Redux potentials of the.

BI layers as the ions move in and
out of the film.

This is basically what the micro like to.

Look like they're sixteen of them.

This is the whole array and

they're each each of the electrodes is
thirty micro meters in diameter and.

So this is a collection of Seabees
that I've taken in different solutions

and I have done this on just
the poly Parul the by layer and

also the by a layer with magnesium
attached to it and through this

you can see the changes in the shape of
the C.V. as each of these things is added.

And you can also compare the shape as
you go through different solutions and

so what we're looking for

is ones that have a noticeable change in
shape because this lets us know that.

What we're doing is
actually having an effect.

And.

From those you can also take the average
area inside the curves of the C.V.

and so here I've done this for
sodium chloride sodium possibly

trysts H.C.L. and
tribunal monium chloride and or.

Each of these solutions you can
the most notable difference is when you

look from by layer to the by a layer
with magnesium attached and.

The.

Sodium chloride and the sodium toss
late are shown to have an increase

in area as you attach magnesium but

solutions that have larger
ions within them are.

Seem to have a decrease in area as.

Man you zoom is added on to the by lair.

So basically the biggest problem that
we're trying to work out right now is.

Which of the ions within the solutions
of the whether it is the cat on or

that an iron or both that are moving with
in and out of the by layer and causing.

The differences in the signals and so

the next step that I'm going to be
taking as far as my research goes is to

figure out how the ionic strength of
the solution affects the signals and

if that can help us figure out which
of the ions is having the effect

and his or my knowledge of them.

And.

That's about it.

Thank you.

I am.

Roy.

And.

Yes.

OK.

They were the that's just what the lab
had been using before I started

this research that's basically because

the is conducting but
neutral so that and also.

There also.

People are also studying
alternatives to the T.P.T..

For a second layer but
that's just a common

thing to use to kind of study
the exchange properties.

OK.

Mystery.

What.

Well the our lab is looking
at making D.N.A. sensors and

so the addition of the D.N.A.
should changes its shape and

size of the C.V.S.
and so then you can sensors and so

we are putting a single stranded
layer of D.N.A. on there and

then you can add a target D.N.A. to that
and the effect of that target D.N.A.

should notify you like we're it's
they're trying to study for things like

different diseases and so if the D.N.A.
binds and it should show a signal and

then you know whether or
not that person has a certain disease.

Yes.

Well but that's the idea is of which
ironic solution we're picking is

that the the ones that have the greatest
signal are amplifying the detection.

So that's why we're looking at all these
different solutions because some of them

don't really change very much in size or
shape.

Whereas other ones have
a greater effect based on

the addition of things to the layers.

Thank you.