Novel NAND and AND Gate Using DNA Ligation and Two Transistors Implementations

In this paper, novel NAND and AND gates are proposed using standard operations on DNA strands in presence of ligase enzyme. The NAND gate is realized as it is a universal gate and any Boolean function can be implemented through it. Thus, this paper provides an initial threshold to realize components of primitive DNA computers. From the VLSI perspective, this paper also proposes novel two transistors AND & NAND gates. The proposed AND gate has no power supply, thus it can be referred as the Powerless AND gate. Similarly, the proposed two transistor NAND gate has no ground and can be referred as Groundless NAND.