Abstract: Disclosed is a method of forming a conductive diamond layer on a surface of a carbon fibre substrate that is used as a component of an electrode for neural stimulation and/or electrochemical sensing. The method comprises functionalising at least a portion of the surface with a functionalising agent to facilitate coating the surface with the conductive diamond layer. The method also comprises providing a diamond precursor and depositing the diamond precursor over the functionalising agent to form the conductive diamond layer. The disclosure also relates to an electrode that is used as a component of an electrode for neural stimulation and/or electrochemical sensing.

Abstract: The present disclosure provides a method of forming a hermetically sealed enclosure that comprises a diamond material. The method comprises providing first and second enclosure components comprising the diamond material and having first and second recesses, respectively, at edge portions. At least one of the first and second enclosure components has a cavity. The enclosure components have respective contact surfaces at the first and second recesses and are shaped such that an outer channel is formed by the co-operation of the first and second recesses when the first and second enclosure components are contacted at the contact surfaces to form the enclosure. The method further comprises bonding a first type of material to at least surface portions of the first and second recesses of the first and second enclosure components, respectively.

Abstract: The present disclosure provides a method of fabricating a diamond membrane. The method comprises providing a substrate and a support structure. The substrate comprises a diamond material having a first surface and the substrate further comprises a sub-surface layer that is positioned below the first surface and has a crystallographic structure that is different to that of the diamond material. The sub-surface layer is positioned to divide the diamond material into first and second regions wherein the first region is positioned between the first surface and the sub-surface layer. The support structure also comprises a diamond material and is connected to, and covers a portion of, the first surface of the substrate. The method further comprises selectively removing the second region of the diamond material from the substrate by etching away at least a portion of the sub-surface layer of the substrate.

Abstract: A circuit board is described. The circuit board comprises an electrically insulating diamond material having a surface. The electrically insulating diamond material has at least one recess extending into only a portion of a thickness of the electrically insulating diamond material from the surface of the electrically insulating diamond material. The circuit board also comprises an electrically conductive material located at least partially within the recess.

Abstract: The present disclosure provides a method of forming a hermetically sealed enclosure that comprises a diamond material. The method comprises providing first and second enclosure components comprising the diamond material and having first and second recesses, respectively, at edge portions. At least one of the first and second enclosure components has a cavity. The enclosure components have respective contact surfaces at the first and second recesses and are shaped such that an outer channel is formed by the co-operation of the first and second recesses when the first and second enclosure components are contacted at the contact surfaces to form the enclosure. The method further comprises bonding a first type of material to at least surface portions of the first and second recesses of the first and second enclosure components, respectively.

Abstract: The present disclosure provides a method of fabricating a diamond membrane. The method comprises providing a substrate and a support structure. The substrate comprises a diamond material having a first surface and the substrate further comprises a sub-surface layer that is positioned below the first surface and has a crystallographic structure that is different to that of the diamond material. The sub-surface layer is positioned to divide the diamond material into first and second regions wherein the first region is positioned between the first surface and the sub-surface layer. The support structure also comprises a diamond material and is connected to, and covers a portion of, the first surface of the substrate. The method further comprises selectively removing the second region of the diamond material from the substrate by etching away at least a portion of the sub-surface layer of the substrate.

Abstract: The present disclosure provides an electrode and an feedthrough for an implantable medical device. In one embodiment, the implantable electrode and the implantable feedthrough both comprise electrically insulating diamond material and electrically conductive diamond material that form an interface. Further, the present disclosure provides method for fabricating the implantable electrode and the feedthrough.

Abstract: A circuit board is described. The circuit board comprises an electrically insulating diamond material having a surface. The electrically insulating diamond material has at least one recess extending into only a portion of a thickness of the electrically insulating diamond material from the surface of the electrically insulating diamond material. The circuit board also comprises an electrically conductive material located at least partially within the recess.

Abstract: A method of positioning an intraocular device at an intraocular position is provided. The method comprises providing a first and a second element selected such that a magnetic force attracts the first element and the second element to each other. The method also comprises positioning the first element in a suprachoroidal space of an eye and positioning the intraocular device in an intraocular space at a portion of tissue of the eye. The method further comprises positioning the second element in the intraocular space of the eye. The first element, the second element and the intraocular device are positioned such that the portion of the tissue of the eye and at least a portion of the intraocular device are positioned between the first and second elements such that the magnetic force at least contributes to securing the intraocular device at the portion of the tissue of the eye.

Abstract: The present disclosure provides an electrode and an feedthrough for an implantable medical device. In one embodiment, the implantable electrode and the implantable feedthrough both comprise electrically insulating diamond material and electrically conductive diamond material that form an interface. Further, the present disclosure provides method for fabricating the implantable electrode and the feedthrough.