The second chamber is to receive {HEAD ~ the magnetic nanoclusters} and crystallize {TAIL ~ the magnetic nanoclusters} 
The second chamber is to receive { HEAD ~ the magnetic nanoclusters } and crystallize { TAIL ~ the magnetic nanoclusters }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL