Disclosed is an apparatus and associated method for tagging insects and arthropods. According to an exemplary embodiment of this disclosure, an electrosprayer is provided including a nozzle cartridge, a spray chamber removably attached to the nozzle cartridge and a power supply operatively connected to the nozzle cartridge and a grounding plate within the spray chamber to electrically charge droplets expelled from the nozzle which coat one or more insects contained in the spray chamber.

A method of manufacturing optoelectronic components includes spraying a fluorescent layer of an optoelectronic component onto a substrate, the substance or the substance mixture of the fluorescent layer including an electric charge when sprayed on, and wherein the electrically charged substance or the at least partially electrically charged substance mixture includes a larger electric potential when the fluorescent layer is sprayed on than at least one area of the substrate; and locally adjusting the thickness of the fluorescent layer of the sprayed-on fluorescent substance when spraying on the fluorescent layer onto the substrate by an electric potential gradient.

A chamber (1) and an air conduit (7) connecting a liquid surface retaining hole (5) with an air hole (6) for supplying air from the outside of an electrostatic atomizer (50) to the chamber (1) are provided. When the liquid surface retaining hole (5) is blocked, the liquid supply from a liquid supplying section (3) to the chamber (1) will be stopped. The air conduit (7) has bent sections (8), and a space (10) for holding the liquid is formed in the air conduit (7).

An electrostatic fluid delivery system is configured to deliver fluid, such as a disinfectant fluid, onto a surface by electrically charging the fluid and forming the fluid into a mist, fog, plume, or spray that can be directed onto a surface, such as a surface to be cleaned. The system atomizes the fluid using a high-pressure fluid stream and passes the fluid through an electrode of a nozzle assembly to charge droplets of the atomized fluid.

Embodiments of the invention are directed to a thin film fabricating apparatus which may be employed in mass production and may stably provide a uniform nano-order layer. An exemplary embodiment of a thin film fabricating apparatus includes: an electrode bath which contains a thin film-forming material; a plurality of needle electrodes disposed in the electrode bath; a plurality of ring electrodes disposed on the electrode bath at positions corresponding to the needle electrodes; and a substrate stand disposed opposite to the needle electrodes and the ring electrodes, where the substrate stand holds the substrate, on which a thin film is to be formed.

The present disclosure describes devices and methods capable of generating multi-phase emulsions, including double emulsion droplets in a gas phase. The present disclosure also describes interfaces for coupling a multi-phase emulsion droplet source to an analytical instrument such as a mass spectrometer. The present disclosure further describes methods, systems, and apparatuses for using the devices and interfaces described to perform analysis, including mass spectrometry. The present disclosure also describes methods, systems, and apparatuses for generating and using multi-phase emulsions to perform analysis.

A method of forming a material structure from structural units contained within a liquid solution in a spray head is described. The liquid solution includes a solvent and a solute, the solute comprising a plurality of the structural units, the structural units including monomer units, oligomer units, or combinations thereof. The method comprises forming droplets of the liquid solution including the structural units, and spraying the droplets on a substrate, thereby substantially increasing the reactivity of the structural units within the droplets relative to the structural units within the liquid solution in the spray head. The increase in reactivity can result from the droplets containing an excess of a particular ion, the ion excess resulting from a voltage applied to conductive walls of the device which dispenses the droplets. The material structure is then formed on the substrate from the more highly reactive structural units within the droplets.

A method for producing a wearable coating having a solid material fixed on skin, the method comprising: A) a step of placing one or more solid materials selected from the group consisting of a powder, a granule, a film, a fiber, a flat material, and a cubic material other than these, on a skin surface; B) a step of, after the step A), electrostatically spraying a composition X comprising the following component (a) and the following component (b) directly on the skin to thereby form a coating on the skin surface: (a) one or more volatile substances selected from the group consisting of water, an alcohol, and a ketone, and (b) a polymer having a coating forming ability; and after the step B) or before the step A), C) a step of applying a composition Y, other than the composition X, comprising one or more components selected from the group consisting of the following component (c) and the following component (d) to the skin: (c) an adhesive polymer, and (d) an oil.

A powder film forming method includes the steps of: filling an opening with a powder, the opening being formed in a screen plate; and forming the powder film by generating an electric potential difference between the screen plate and a substrate so as to cause the powder, which is filling the opening, to move to the substrate.

The invention related to a device (1) for spraying charged droplets of a liquid towards a target along a spraying direction, comprising: a reservoir (10) for storing the liquid (L), a first electrode (100) being arranged at an outlet (11) of said reservoir (10), a second electrode (200) forming a counter electrode to the first electrode (100) for accelerating said droplets (D) along the spraying direction (S), and a housing (30) holding the reservoir (10) as well as said electrodes (100, 200).