Abstract: A heterochiral strand displacement molecular circuit generally includes an input oligonucleotide, a first translator, a second translator, and an output oligonucleotide. The first translator generally includes a domain that binds to the input binding oligonucleotide, at least a portion of which is complementary to, and has the same chirality as, the input oligonucleotide. The first translator also includes a translation domain having chirality opposite the chirality of the input oligonucleotide (and the binding domain). The second translator generally includes a nucleotide sequence, at least a portion of which is complementary to, and has the same chirality as, the translation domain of the first translator. The output oligonucleotide includes a nucleotide sequence, at least a portion of which is complementary to, and has the same chirality as, the second translator.