The NAND gate is a circuit that outputs '0' when both inputs are '1', and '0' otherwise, so if you arrange the NAND gate as follows, the Invert circuit is completed.

In this paper, the authors discuss the design of an Integrated Circuit (IC) layout for a decoder. The layout was designed by using an open source software. ... 2-input NAND gates, ...

Research Theme “Development of multi-input multi-output circuits using spin-wave phase interference in ultra-thin magnetic oxides” Journal Information. Naoki Kanazawa, Taichi Goto, Koji Sekiguchi, ...