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Antiepileptic drugs are suspected of being weakly teratogenic in humans. In a prospective longitudinal study, we assessed growth parameters of children from birth to adolescence who had been prenatally exposed to various antiepileptic drugs and compared them to non-exposed control children matched for parental body length, social status, and maternal nicotine consumption during pregnancy as well as for parity. While no differences in mean head circumferences could be ascertained in the group of exposed children at 1, 6, and 14 years, differences were measured in body length at I year. The differences were more pronounced for both measurements when therapy forms and types of drugs were considered: polytherapy and phenobarbitone therapy (which was usually part of polytherapy) of the mother appeared to have an influence on the children's growth. Children exposed to polytherapy and phenobarbitone (as single drug or as part of polytherapy) had smaller head circumferences and were shorter. We assume an influence of polytherapy and phenobarbitone therapy taken by the epileptic woman during pregnancy on the growth of the child into adolescence
Recent advances in organic solar cell performance have been mainly driven forward by combining high-performance p-type donor-acceptor copolymers (e.g.PM6) and non-fullerene small molecule acceptors (e.g.Y6) as bulk-heterojunction layers. A general observation in such devices is that the device performance, e.g., the open-circuit voltage, is strongly dependent on the processing solvent. While the morphology is a typically named key parameter, the energetics of donor-acceptor blends are equally important, but less straightforward to access in the active multicomponent layer. Here, we propose to use spectral onsets during electrochemical cycling in a systematic spectroelectrochemical study of blend films to access the redox behavior and the frontier orbital energy levels of the individual compounds. Our study reveals that the highest occupied molecular orbital offset (Delta E-HOMO) in PM6:Y6 blends is similar to 0.3 eV, which is comparable to the binding energy of Y6 excitons and therefore implies a nearly zero driving force for the dissociation of Y6 excitons. Switching the PM6 orientation in the blend films from face-on to edge-on in bulk has only a minor influence on the positions of the energy levels, but shows significant differences in the open circuit voltage of the device. We explain this phenomenon by the different interfacial molecular orientations, which are known to affect the non-radiative decay rate of the charge-transfer state. We compare our results to ultraviolet photoelectron spectroscopy data, which shows distinct differences in the HOMO offsets in the PM6:Y6 blend compared to neat films. This highlights the necessity to measure the energy levels of the individual compounds in device-relevant blend films.