Abstract: A microcapsule and a preparation method and use thereof are provided. The microcapsule includes a core phase and a shell phase with a volume ratio of (3.4-3.8):(0.8-1.2); wherein the core phase includes 8 wt % to 12 wt % of PVA, 4 wt % to 6 wt % of a density enhancer, 0.1 wt % to 0.3 wt % of an active substance, and a residual amount of water; the shell phase includes an elastomer precursor, a curing agent and silicone oil with a mass ratio of (9-11):(0.8-1.2):(2.5-3). The microcapsules of the present invention release active ingredients completely in milliseconds, and the release process exerts a relatively strong mechanical stimulation intensity on the surrounding environment which can further improve an absorption efficiency to the active ingredients in the fields of pharmaceuticals and cosmetics, and can provide a unique sensual experience in the field of food.

Abstract: Provided are a method and a device for encapsulating a cell in droplet for single-cell analysis, or a method and a device for forming droplet for single-cell analysis. According to the method and the device of one aspect, by using the effects of inertial ordering, not only a ratio at which one cell is encapsulated in one droplet is increased, but also a yield of generating droplet is improved.

Abstract: Disclosed is a method for providing real-time bus information by a terminal, the method including: receiving ultra-precise bus information about buses scheduled to arrive at a bus stop from a server; and based on the ultra-precise bus information, displaying at least one bus which moves toward the bus stop and disappears after passing the bus stop on a map area.

Abstract: Provided are a method and a device for encapsulating a cell in droplet for single-cell analysis, or a method and a device for forming droplet for single-cell analysis. According to the method and the device of one aspect, by using the effects of inertial ordering, not only a ratio at which one cell is encapsulated in one droplet is increased, but also a yield of generating droplet is improved.

Abstract: A photonic crystal film, a method for manufacturing the photonic crystal film, and an anti-forgery article comprising the photonic crystal film are disclosed. The photonic crystal film includes a polyurethane-based polymer matrix and colloidal particles dispersed in the polyurethane-based polymer matrix and arranged in a crystal lattice structure. The colloidal particles includes one or more selected from metal nanoparticles, metal oxide nanoparticles, organic nanoparticles, and carbon structure nanoparticles.

Abstract: A photonic crystal film, a method for manufacturing the photonic crystal film, and an anti-forgery article comprising the photonic crystal film are disclosed. The photonic crystal film includes a polyurethane-based polymer matrix and colloidal particles dispersed in the polyurethane-based polymer matrix and arranged in a crystal lattice structure. The colloidal particles includes one or more selected from metal nanoparticles, metal oxide nanoparticles, organic nanoparticles, and carbon structure nanoparticles.

Abstract: Disclosed are an ink composition including light-absorbing nanoparticles and a photonic crystal structure formed using the same. The ink composition may include inorganic particles; monomer; photoinitiator; and nanoparticles light-absorbing nanoparticles to provide the photonic crystal structure. As consequence, problems such as low color sharpness, which makes photonic crystals visible, and attaining high productivity may be eliminated. Moreover, white scattering can be reduced, and thus a distinctive color can be exhibited even when there is a difference between a reflection angle and an observation angle of light, thereby improving visibility.

Abstract: Provided are a method and a device for encapsulating a cell in droplet for single-cell analysis, or a method and a device for forming droplet for single-cell analysis. According to the method and the device of one aspect, by using the effects of inertial ordering, not only a ratio at which one cell is encapsulated in one droplet is increased, but also a yield of generating droplet is improved.

Abstract: Disclosed are an ink composition including light-absorbing nanoparticles and a photonic crystal structure formed using the same. The ink composition may include inorganic particles; monomer; photoinitiator; and nanoparticles light-absorbing nanoparticles to provide the photonic crystal structure. As consequence, problems such as low color sharpness, which makes photonic crystals visible, and attaining high productivity may be eliminated. Moreover, white scattering can be reduced, and thus a distinctive color can be exhibited even when there is a difference between a reflection angle and an observation angle of light, thereby improving visibility.

Abstract: An identification film and pattern having high transparency and a reflectance spectrum with respect to a particular wavelength and including photonic crystals patterned into a particular shape and an anticounterfeiting product including the same are disclosed. A highly transparent colloidal photonic crystal film is easily manufactured using photocurable colloidal suspensions. Even though a plurality of patterns (including sub-patterns) is formed in plural films, there is no reduction in optical characteristics such as transparency, reflectance spectra, and the like. Thus, a film patterned into a desired shape is manufactured and thus usability thereof is enhanced, and a plurality of reflectance spectra with various wavelength ranges is provided and thus identification capability or security is enhanced.

Abstract: An identification film and pattern having high transparency and a reflectance spectrum with respect to a particular wavelength and including photonic crystals patterned into a particular shape and an anticounterfeiting product including the same are disclosed. A highly transparent colloidal photonic crystal film is easily manufactured using photocurable colloidal suspensions. Even though a plurality of patterns (including sub-patterns) is formed in plural films, there is no reduction in optical characteristics such as transparency, reflectance spectra, and the like. Thus, a film patterned into a desired shape is manufactured and thus usability thereof is enhanced, and a plurality of reflectance spectra with various wavelength ranges is provided and thus identification capability or security is enhanced.

Abstract: A method for fabrication of microparticles using a photo-polymerizable colloidal dispersant is provided. The method includes (a) preparing liquid droplets in a continuous phase from photo-polymerizable resin containing colloidal particles dispersed therein, then, allowing the colloidal particles to move toward an interface of the liquid droplets; and (b) UV exposing the liquid droplets to enable photo-polymerization thereof, so as to produce microparticles having a structure formed of colloidal particles on a surface of the microparticles. In addition, in order to improve the surface structure and characteristics, the foregoing method further includes (c) selective chemical reaction of the colloidal particles formed on the surface of the microparticles or, otherwise, removal of the colloidal particles.