Systems and methods for increasing the range of RFID tags are provided. The present invention exerts a retention force on the card in addition to the frictional forces exerted on each of the connector contacts inserted into the host socket. The field emitter being formed on the same layer and of the same material and at the same time as the cathode electrode. The dendritic polyethylenes can be used as processability additives to provide extensional hardening in low concentrations in various conventional polyethylenes such as HDPE, LLDPE and mLLDPE. In one embodiment, the invention relates to non-natural amino acids that closely replicate the natural amino acids lysine and arginine.