Abstract: Provided are a micro-valve structure and a lab-on-a-chip module that include a polymer actuator. The micro-valve structure may include a flexible structure disposed on a substrate, and the polymer actuator inserted into the flexible structure. At this time, the flexible structure has a valve portion defining a microchannel and the polymer actuator is separated from the microchannel by the flexible structure. In addition, the polymer actuator is formed to change a width of the microchannel by controlling a displacement of the valve portion.

Abstract: Metal nanoparticle-polymer composites, a method of manufacturing the same, and a polymer actuator using the same are provided. The method includes synthesizing an organometallic compound as a precursor of metal nanoparticles, preparing a solution mixture containing the organometallic compound and a polymer, and drying and annealing the solution mixture to generate the metal nanoparticle-polymer composite including metal nanoparticles. Thus, highly efficient metal nanoparticle-polymer composite materials may be manufactured with a uniform distribution without synthesizing nanoparticles.

Abstract: Provided is a convergence control module for a three-dimensional (3D) camera that can be operated with low power to reduce power consumption, which has been a problem in the 3D camera. A 3D camera module includes at least one camera module, a moving guide for supporting the camera module and providing a moving path, a control driver for moving the camera module along the moving guide, and a control unit for controlling the control driver.

Abstract: A polymer actuator containing graphene and a method of preparing the same are provided. The polymer actuator includes an ion-conductive polymer membrane, a metal electrode disposed on both surfaces of the ion-conductive polymer membrane, and graphene dispersed within the ion-conductive polymer membrane. As the graphene is dispersed within the polymer membrane, reverse ion migration due to an osmotic pressure occurring after solvent migration caused by electrostimulation in operation of the actuator can be prevented, and thus drivability of the polymer actuator can be improved.

Abstract: A method of preparing a polymer actuator includes providing an ionic conductive polymer membrane; forming first and second metal electrodes respectively over first and second surfaces of the ionic conductive polymer membrane; substituting water used in the formation of the first and second metal electrodes with an ionic liquid stable to an electrolysis; and coating the first and second surfaces of the metal electrodes with a coating material.

Abstract: The present invention provides compositions and methods for creating encapsulated peptide amphiphilic nanostructures useful in treating diseases. In particular, the present invention provides compositions and methods for preparing peptide amphiphile nanostructures that are encapsulated in liposomes by the application of light, and using such compositions in treating diseases, such as cancer.

Abstract: The present invention utilizes a principle in which, in a state in which metal nano-particles are attached to target probes and used as markers, and the metal nano-particles have a proper density according to a bio reaction between the target probes and fixed probes, when the metal nano-particles are irradiated with a laser beam having a proper intensity from the optical pick-up head, a higher optical energy is delivered to the phase change layer by an optical amplification effect caused by the metal nano-particles, thereby better inducing an amorphous-to-crystalline phase change.

Abstract: A multi-download structure and a method of downloading information to one or more mobile communications terminals is provided. The structure includes an input unit for inputting download terms. A user download executing unit displays the inputted download terms and model information of mounted terminals on a screen and integrally controls/manages a multi-downloading operation. A plurality of lower download executing units, in which terminal model information has been registered, individually execute download operations to each mounted terminal. A medium unit receives the download terms and the terminal model information from the user download executing unit, automatically selects a model of the terminal to be downloaded, automatically calls the plurality of lower download executing units corresponding to the selected terminal models, and executes the multi-downloading operation.

Abstract: Provided are a surface-coated polymer actuator and a method of preparing the same. The polymer actuator includes an ionic conductive polymer membrane, metal electrodes formed on both surfaces of the ionic conductive polymer membrane, and coating layers formed on both the surfaces of the metal electrodes. By coating the surfaces of the metal electrodes of the polymer actuator, the leakage of solvent from the electrode surfaces due to an inner pressure, which is caused by the solvent's flow due to an electrical stimulus when the actuator is operated, can be prevented and thus the displacement and drivability of the polymer actuator can be improved.

Abstract: Provided are a method for preparing polymer actuators with high stability and polymer actuators prepared by the method, and more specifically, to a method for preparing polymer actuators with high stability that use low power, are extremely thin, and can be substituted in a motor of a camera module, and polymer actuators prepared by the method. The method includes the steps of: preparing an Ionic Polymer Metal Composite (IPMC) in which metal electrodes are plated on both surfaces of a ionic polymer film; removing water from the ionic polymer film of the IPMC; and expanding the IPMC in a polar solvent that has a higher boiling point and a lower freezing point than water.

Abstract: A multi-download structure and a method of downloading information to one or more mobile communications terminals is disclosed. The structure includes an input unit for inputting download terms. A user download executing unit displays the inputted download terms and model information of mounted terminals on a screen and integrally controls/manages a multi-downloading operation. A plurality of lower download executing units, in which terminal model information has been registered, individually execute download operations to each mounted terminal. A medium unit receives the download terms and the terminal model information from the user download executing unit, automatically selects a model of the terminal to be downloaded, automatically calls the plurality of lower download executing units corresponding to the selected terminal models, and executes the multi-downloading operation.