Structure/property relationships were obtained to understand the antimicrobial function of conjugated oligoelectrolytes toward Gram-negative and Gram-positive bacteria.

Solution-processed organic field-effect transistors (OFETs) were fabricated with the addition of an organic salt, trityl tetrakis(pentafluorophenyl)borate (TrTPFB), into thin films of donor-acceptor copolymer semiconductors. The performance of OFETs is significantly enhanced after the organic salt is incorporated. TrTPFB is confirmed to p-dope the organic semiconductors used in this study, and the doping efficiency as well as doping physics was investigated. In addition, systematic electrical and structural characterizations reveal how the doping enhances the performance of OFETs. Furthermore, it is shown that this organic salt doping method is feasible for both p- and n-doping by using different organic salts and, thus, can be utilized to achieve high-performance OFETs and organic complementary circuits.

DSFO+ has a molecular structure that provides redox functionality within a conjugated oligoelectrolyte framework that encourages its intercalation into cellular membranes, which are relatively nonpolar at 3 z 5. At this low dielectric constant, the redox potential of DSFO+ becomes physiologically relevant, opening a catalytic transmembrane electron transfer pathway that increases the metabolic efficiency of biological electron production. Until now, incorporation of a synthetic small molecule as a mechanistic option for increasing biocurrent has not been available.