Handoff of a mobile wirelessly communicating device\u2014a mobile\u2014between as plurality of stationary base stations within cells within a domain of a stationary gateway router all within a communications network based on the Internet Protocol is without interchange of control and responsive to the mobile, only. More particularly, the composition of matter comprises a molecularly compact polymer-ligand conjugate capable of self-orienting on a surface to improve the orientation of the ligandreceptor binding domains within the bioassay at the nanoscopic level. To facilitate the light signal in and out, a first collimator to receive a light beam, and a second collimator to output the light beam, wherein the light beam is attenuated by the light blocker when the light is transmitted from the first collimator to the second collimator.