The invention relates to a method for the production of structures in the nanometer range from larger, existing structures. The compounds are useful for the prevention of blood loss, and as components of fibrin adhesives. Also provided is a method for reducing the level of powder in phenothiazine product which includes forming the phenothiazine product in prill form such that the prills have a generally spherical shape. A transceiver may prevent data traffic from being read when the transceiver is not provisioned to receive data traffic with the embedded secure passcode and may insert an alternative maintenance signal into an outbound signal in an opposite direction, at least temporarily, until the inbound signal includes the appropriate passcode. A fixed connection is then formed between the header and the ceiling track to provide lateral stability at the upper edge of the wall panel.