Alternating field electrode system and method for fiber generation

    公开(公告)号:US12110612B2

    公开(公告)日:2024-10-08

    申请号:US17429986

    申请日:2020-02-14

    CPC classification number: D01D5/0092 D01D5/0069

    Abstract: An electrode system for use in an AC-electrospinning process comprises an electrical charging component electrode and at least one of an AC field attenuating component and a precursor liquid attenuating component. The electrical charging component electrode is electrically coupled to an AC source that places a predetermined AC voltage on the electrical charging component electrode. In cases in which the electrode system includes the AC field attenuating component, it attenuates the AC field generated by the electrical charging component electrode to better shape and control the direction of the fibrous flow. In cases in which the electrode system includes the precursor liquid attenuating component, it serves to increase fiber generation, even if the top surface of the liquid precursor is not ideally shaped or is below a rim or lip of the reservoir that contains the liquid on the electrical charging component electrode.

    CARBON NANOSPHERE-COATED BACTERIA AS MOSQUITO LARVICIDES

    公开(公告)号:US20190059388A1

    公开(公告)日:2019-02-28

    申请号:US16070856

    申请日:2017-01-20

    Abstract: Compositions and methods of use thereof for delivering an insecticide to water-borne insect larvae are provided. Whereas individual cells of the insecticidal bacteria such as Bacillus thuringiensis israelensis (Bti), are effective in killing insect larvae when ingested by same, their use in aqueous environments is restricted by the time that the bacterial cells remain suspended in water and hence available for ingestion by the larvae. To increase the time that the insecticidal bacteria remain in suspension, it has now been found advantageous to mix bacterial suspensions with nanoparticles comprising carbon that attach to the external surface of the cells.

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