Abstract:
A hybrid bio actuator and a manufacturing method thereof using a 3-dimensional micro molding aligning apparatus are provided. The manufacturing method has the steps of: 3-dimensionally forming an actuator body with polymer using the micro molding aligning apparatus; and transplanting and cultivating the muscular cell onto the actuator body. The step of forming the actuator body comprise: preparing the upper and lower half molds corresponding to an outer contour of the actuator; installing, on the mold plate unit, the upper and lower half molds opposite to each other and placing a mass of polymer above the lower half mold; aligning the lower half mold with the upper half mold using the aligner unit; pressing the mold plate unit using the clamp unit; solidifying the polymer; and removing the solidified polymer, thereby providing the hybrid bio actuator made of a biomaterial compatible with the human body and capable of operating without a separate battery or external energy source.
Abstract:
A portable device for data communication using a body as a conductor to transmit data to a receiver, the portable device includes a data receiving unit to receive data, a controller unit to control processing of data to be transmitted, a current limiting circuit to limit a current of a signal corresponding to the data to be transmitted to a predetermined value, and transmitting electrodes connected to the current limiting circuit and to contact the body to transmit the signal having the current of predetermined value to the receiver.
Abstract:
The present invention provides a method and apparatus for receiving data in a human body communication system. The receiving apparatus, which comprises plural receiving electrodes, selects the optimum pair of receiving electrodes when receiving data, so that it can improve quality of received information and obtain position information of a sensor in the human body.
Abstract:
A hybrid bio actuator and a manufacturing method thereof using a 3-dimensional micro molding aligning apparatus are provided. The manufacturing method has the steps of: 3-dimensionally forming an actuator body with polymer using the micro molding aligning apparatus; and transplanting and cultivating the muscular cell onto the actuator body. The step of forming the actuator body comprise: preparing the upper and lower half molds corresponding to an outer contour of the actuator; installing, on the mold plate unit, the upper and lower half molds opposite to each other and placing a mass of polymer above the lower half mold; aligning the lower half mold with the upper half mold using the aligner unit; pressing the mold plate unit using the clamp unit; solidifying the polymer; and removing the solidified polymer, thereby providing the hybrid bio actuator made of a biomaterial compatible with the human body and capable of operating without a separate battery or external energy source.
Abstract:
A hybrid bio actuator and a manufacturing method thereof using a 3-dimensional micro molding aligning apparatus are provided. The manufacturing method has the steps of: 3-dimensionally forming an actuator body with polymer using the micro molding aligning apparatus; and transplanting and cultivating the muscular cell onto the actuator body. The step of forming the actuator body comprise: preparing the upper and lower half molds corresponding to an outer contour of the actuator; installing, on the mold plate unit, the upper and lower half molds opposite to each other and placing a mass of polymer above the lower half mold; aligning the lower half mold with the upper half mold using the aligner unit; pressing the mold plate unit using the clamp unit; solidifying the polymer; and removing the solidified polymer, thereby providing the hybrid bio actuator made of a biomaterial compatible with the human body and capable of operating without a separate battery or external energy source.
Abstract:
The present invention relates to an impedance transformation-type wide band internal antenna. The wide band antenna includes a radiation part, a short circuit part, a feeding part, and a feeding pin. The radiation part is formed to have a predetermined length and width according to an operating frequency, the radiation part including a plurality of stubs formed in arbitrary shapes according to location of a plurality of slots. The short circuit part causes part of a side surface of the radiation part to be connected to an external ground. The feeding part is extended from the stubs, formed on the side surface of the radiation part to be adjacent to the short circuit part, and is bent multiple times, the feeding part being formed on a bottom surface of the radiation part to have a predetermined length and width. The feeding pin is formed on an end of the feeding part and is fed with current. Accordingly, the present invention is advantageous in that impedances are matched using the length and interval of the feeding part, which is bent multiple times, and the size of a through hole formed in the feeding part, so that a plurality of wide band resonant frequencies is formed, thus enabling the wide band antenna to be simultaneously used for different frequency bands in a wireless communication system that uses different frequency bands.
Abstract:
A biodegradable carrier for delivery of a selected bioactive molecule into a targeted host cell containing an amphiphilic polyester-polycation copolymer and an amphiphilic polyester-sugar copolymer. The carrier is particularly useful for delivery of a negatively charged bioactive molecule such as a nucleic acid. The invention improves delivery efficiency by providing a particulate gene carrier for which the particle size and charge density are easily controlled by various means. Various kinds of ligands and other functional compounds may be also be introduced to the carrier. The carrier may be used for delivering a targeted host cell with a bioactive molecule.
Abstract:
A portable device for data communication using a body as a conductor to transmit data to a receiver, the portable device includes a data receiving unit to receive data, a controller unit to control processing of data to be transmitted, a current limiting circuit to limit a current of a signal corresponding to the data to be transmitted to a predetermined value, and transmitting electrodes connected to the current limiting circuit and to contact the body to transmit the signal having the current of predetermined value to the receiver.
Abstract:
The probe structure capable of measuring a pH level according to an embodiment of the present disclosure includes: a probe unit inserted into an experiment target; a fixing body connected to a terminal of the probe unit and fixing the probe unit; an electrode array disposed at a front end of the probe unit and sensing a neural signal from the experiment target and a pH level; a reference electrode disposed at the front end of the probe unit to be spaced apart from the electrode array by a predetermined interval and sensing a reference signal for pH level measurement; an electric wire electrically connected to the electrode array and the reference electrode; and a measured signal collecting electrode integrated at the fixing body and collecting measured signals transmitted through the electric wire.
Abstract:
The present invention provides method and system for data communication in the human body and a sensor therefor. The method and system transmit information through the human body to a receiver located outside the human body using low current and voltage polarity, so that they cause no damage to the human body and achieve low power consumption and better receiving sensitivity. In addition, the sensor contains a CMOS image sensor on which all circuits are integrated without radio transmitter and antenna, so that it achieves a low-priced and small-sized capsule type endoscope.