In this way, {HEAD ~ the first surface} 930A becomes {TAIL ~ the hydrophilic diffusion media}, where it is inherently hydrophilic throughout it thickness by virtue of material properties or treatments 
becomes
In this way , { HEAD ~ the first surface } 930A becomes { TAIL ~ the hydrophilic diffusion media } , where it is inherently hydrophilic throughout it thickness by virtue of material properties or treatments
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH