The article present several news related to science research. Topics include engineered enzyme expressed in genetically targeted neurons synthesized conductive polymers in tissues of freely moving animals; converting low-temperature thermal sources into electricity by using metal-oxide semiconductor infrared photonic device; and use of CRISPR-Cas9–mediated mutagenesis to show that loss of-function mutations in the cytidine deaminase CDA2 gene result in the loss of antibody gene assembly.