-
I want you guys to imagine that you're a soldier
-
running through the battlefield.
-
Now, you're shot in the leg with a bullet,
-
which severs your femoral artery.
-
Now, this bleed is extremely traumatic
-
and can kill you in less than three minutes.
-
Unfortunately, by the time that a medic
-
actually gets to you,
-
what the medic has on his or her belt
-
can take five minutes or more,
-
with the application of pressure,
-
to stop that type of bleed.
-
Now, this problem is not only a huge problem
-
for the military, but it's also a huge problem
-
that's epidemic throughout the entire medical field,
-
which is how do we actually look at wounds
-
and how do we stop them quickly
-
in a way that can work with the body?
-
So now, what I've been working
on for the last four years
-
is to develop smart biomaterials,
-
which are actually materials that will work
-
with the body, helping it to heal
-
and helping it to allow the wounds to heal normally.
-
So now, before we do this, we have to take
-
a much closer look
-
at actually how does the body work.
-
So now, everybody here knows
-
that the body is made up of cells.
-
So the cell is the most basic unit of life.
-
But not many people know what else.
-
But it actually turns out that your cells
-
sit in this mesh of complicated fibers,
-
proteins, and sugars
-
known as the extracellular matrix.
-
So now, the ECM
-
is actually this mesh that holds the cells in place,
-
provides structure for your tissues,
-
but it also gives the cells a home.
-
It allows them to feel what they're doing,
-
where they are, and tells them
-
how to act and how to behave.
-
And it actually turns out that the extracellular matrix
-
is different from every single part of the body.
-
So the ECM in my skin
-
is different than the ECM in my liver,
-
and the ECM in different parts of the same organ
-
actually vary, so it's very difficult
-
to be able to have a product
-
that will react to the local extracellular matrix,
-
which is exactly what we're trying to do.
-
So now, for example, think of the rain forest.
-
You have the canopy, you have the understory,
-
and you have the forest floor.
-
Now, all of these parts of the forest
-
are made up of different plants,
-
and different animals call them home.
-
So just like that, the extracellular matrix
-
is incredibly diverse in three dimensions.
-
On top of that, the extracellular matrix
-
is responsible for all wound healing,
-
so if you imagine cutting the body,
-
you actually have to rebuild
-
this very complex ECM
-
in order to get it to form again,
-
and a scar, in fact, is actually
-
poorly-formed extracellular matrix.
-
So now, behind me is an animation
-
of the extracellular matrix.
-
So as you see, your cells sit in this complicated mesh
-
and as you move throughout the tissue,
-
the extracellular matrix changes.
-
So now every other piece
-
of technology on the market
-
can only manage a two-dimensional approximation
-
of the extracellular matrix,
-
which means that it doesn't fit in
-
with the tissue itself.
-
So when I was a freshman at NYU,
-
what I discovered was you could actually take
-
small pieces of plant-derived polymers
-
and reassemble them onto the wound.
-
So if you have a bleeding wound
-
like the one behind me,
-
you could actually put our material onto this,
-
and just like Lego blocks,
-
it'll reassemble into the local tissue.
-
So that means if you put it onto liver,
-
it turns into something that looks like liver,
-
and if you put it onto skin,
-
it turns into something that looks just like skin.
-
So when you put the gel on,
-
it actually reassembles into this local tissue.
-
So now, this has a whole bunch of applications,
-
but basically the idea is,
wherever you put this product,
-
you're able to reassemble into it immediately.
-
Now, this is a simulated arterial bleed
-
— blood warning —
-
at twice human artery pressure.
-
So now, this type of bleed is incredibly traumatic,
-
and like I said before, would actually take
-
five minutes or more with pressure
-
to be able to stop.
-
Now, in the time that it takes
me to introduce the bleed itself,
-
our material is able to stop that bleed,
-
and it's because it actually goes on and works
-
with the body to heal,
-
so it reassembles into this piece of meat,
-
and then the blood actually recognizes
-
that that's happening, and produces fibrin,
-
producing a very fast clot in less than 10 seconds.
-
So now this technology — Thank you.
-
(Applause)
-
So now this technology by January
-
will be in the hands of veterinarians,
-
and we're working very diligently to try to get it
-
into the hands of humans,
-
hopefully within the next year.
-
But really, once again, I want you guys to imagine
-
that you are a soldier running through a battlefield.
-
Now, you get hit in the leg with a bullet,
-
and instead of bleeding out in three minutes,
-
you pull a small pack of gel out of your belt,
-
and with the press of a button,
-
you're able to stop your own bleed
-
and you're on your way to recovery.
-
Thank you very much.
-
(Applause)