Well, what weÕve created is a technology that makes hollow porous core sheath nano fibers.  So, essentially we have nano fibers which are on a size scale which mimics the dominant protein inside the body collagen.  So its a hundred to three hundred nano meters much smaller than one hair on your head.  And what weÕve done now in addition to making this size scale of fibers which is not uncommon, weÕve made these hollow within the inside of these fibers and the sheath is porous, which means it has a lot of holes in it.  You can think of it as a as a tiny soaker hose essentially if you were to imagine that.  What weÕre trying to create is what you can think of as a programmable bandage essentially for a patient specific traumatic wound.  What weÕve thought about from this process is you have a wounded war fighter for example returning home from combat that has a large expansive wound.  So, on the outside what we need to do is create an anti-microbial antibacterial surface.  But we donÕt want to just stop there as you progress into the wound; we want to not only deliver pain relief so we want to release compounds that will control pain and inflammation.  We also want to control the tissue engineering regenerative medicine.  So, stem cells which we can also deliver by taking a little bit of this personÕs fat, we can get stem cells from that fat.  And based on what the scaffold is delivering we can control those stem cells to regenerate new tissue at the site.  What we do in the lab as a whole to promote this is I have the variety of graduate and undergraduate students that look at how do we control stem cell fate in combination with how do we do these control release scaffolds.  So, the definition of a stem cell is that you can turn it into many different types of cells.  So, in our lab we mostly focus on muscular skeletal tissue.  So bone, cartilage, tendon.  So, what we want to do is take these stem cells from the fat and we want to put them on different what we call substrate stiffnessÕs.  So, you can think of that as bone as being very stiff.  You can think of bone as being like a hard piece of glass.  Whereas, cartilage is a little, is a little softer.  ItÕs closer to jello.  Not quite as soft as jello.  So, basically what we can do is change the stiffness of what youÕre actually growing the cells on to help enhance taking these stem cells into different types.  So, you can turn them into bone cells.  You can turn them into cartilage cells.  And then you can put them back into the patient if they have an injury.  So, itÕs a multi-layer scaffold that because of the fiberÕs diffusional properties can deliver all of these different compounds.  And, and hopefully regenerate tissue and, and stop infection simultaneously.