Compositions, methods and uses for thermally stable multi-targeted antigens

    公开(公告)号:US11273127B2

    公开(公告)日:2022-03-15

    申请号:US16146686

    申请日:2018-09-28

    Abstract: Embodiments of the present invention provide for novel compositions and methods for making and using a thermally stable human papilloma virus (HPV) formulation or other stabilized multimeric virus formulation. Certain embodiments concern lyophilizing HPV formulations in the presence or absence of adjuvants. Other embodiments concern lypophilizing HPV capsomere vaccines in order to increase stability of an immunogenic composition against HPV infection for storage, delivery and use. In yet other embodiments, a single immunogenic composition can include a thermally stable formulation of multiple virus serotypes. Yet other embodiments disclosed herein concern multi-targeted antigen complexes lyophilized in formulations of use to prolong stability and/or enhance immunogenicity. Other embodiments concern exposing lyophilized multi-targeted antigen complexes to elevated temperatures to enhance immunogenicity of the antigens of the complex to multiple pathogens.

    Method and Apparatus for Optical Waveguide-to-Semiconductor Coupling for Integrated Photonic Circuits

    公开(公告)号:US20220019020A1

    公开(公告)日:2022-01-20

    申请号:US17232677

    申请日:2021-04-16

    Inventor: Milos A. Popovic

    Abstract: A grating coupler couples a waveguide to a beam and is formed of patterned shapes in a first and second layer of planar material, the shapes embedded in background material, the layers separated by less than one wavelength. The shapes are organized as a plurality of adjacent unit cells arranged along a direction of propagation of light with each unit cell including a shape of the first material and a shape of the second material, each unit cell having design parameters including a period, a width wb of the shape of first planar material, a width wt of the shape of second planar material, and an offset between the shapes. The coupler has a directivity ratio D is at least 10 dB between “up” and “down” radiation; and unit cells differ in at least one parameter selected from period, wb, wt, and offset to provide a predetermined beam shape.

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