Pohang University of Science and Technology Foundation

Shilla Industrial Co., Ltd.

Geunbae Lim

Intae Kim

Hyeonsu Woo

Jungho Lee

Byoungsun Choi

Sang Hoon Lee

Wonkyu Moon

Sung Jae Kim

Seongjin Cho

Joonseong Heo

Taechang An

Hyukjin J Kwon

In-Tae Kim

Bum-Joo Kim

Bumjoo Kim

Seong-Wan Kim

A transdermal drug delivery patch includes a flexible base layer, and a plurality of microneedles disposed at one surface of the base layer and including a biodegradable polymer and a drug. Each of a plurality of microneedles is formed as a star-shaped pyramid including a plurality of protrusions extending in a radial direction, and a concave shape is formed between two protrusions adjacent along a circumferential direction among a plurality of protrusions.

Transdermal drug delivery patch and manufacturing method thereof

A transdermal drug delivery patch according to an exemplary embodiment of the present invention includes: a flexible base layer; and a plurality of microneedle disposed at one surface of the base layer. Each of the plurality of microneedles includes a biodegradable polymer and a drug and has an empty space inside. Each of the plurality of microneedles is formed as a star-shaped pyramid including a plurality of protrusions extending in a radial direction, and a part between two protrusions adjacent along the circumferential direction among the plurality of protrusions is concave.

The present invention relates to an apparatus for controlling droplet motion in an electric field by reducing volume of a single droplet to a very small volume using a strong electric field and controlling a position of a droplet using a repulsive force of the same polarity, and a method of the same. The apparatus according to an exemplary embodiment of the present invention includes a first electrode, an insulator disposed above the first electrode, a discharge tip disposed above the insulator by a predetermined distance and dividing a transferred fluid into a small volume of a droplet, and a second electrode contacting the fluid supplied through the discharge tip. The first electrode and the second electrode may form an electric field at an end of the discharge tip by forming a potential difference between the first electrode and the second electrode.

Apparatus for controlling droplet motion in electric field and method of the same

An ionic field effect transistor includes: a substrate; a polymer layer that is formed on the substrate and in which a first flow path and a second flow path that is separately disposed from the first flow path are formed; and a gate electrode that is formed between the substrate and the polymer layer and that contacts the first flow path and the second flow path, wherein a heterogeneous triangular nanochannel that connects the first flow path and the second flow path is formed between the gate electrode and the polymer layer.

Ionic field effect transistor having heterogeneous triangular nanochannel and method of manufacturing the same

The present invention relates to a droplet discharge apparatus that includes a nozzle for discharging a droplet from a tip thereof, and a discharge unit for injecting a gas toward the tip of the nozzle.

Droplet discharge head and droplet discharge apparatus

Provided is a droplet discharging device that can precisely dispense large flow rate of droplets and small flow rate of droplets selectively. The droplet discharging device according to the present invention includes a pneumatic discharger for discharging a droplet having a first flow rate, and an electronic pipette for discharging or sucking a droplet having a second flow rate equal to or smaller than the first flow rate. The pneumatic discharger includes, i) a storage chamber for storing a liquid, ii) an air tank connected to the storage chamber through a first air pipe and supplying compressed air to the storage chamber to push the liquid of the storage chamber outside, and iii) a first nozzle connected to the storage chamber through the liquid pipe and receiving the liquid pushed out of the storage chamber to discharge droplets.

Droplet discharging device

A method for fabricating a carbon nanotube film floating on a bottom is provided. The fabrication method of a carbon nanotube film comprises: forming electrodes on a substrate; arranging a suspension comprising a plurality of carbon nanotubes on the electrodes; and arranging the carbon nanotubes on the electrodes by applying a voltage to the electrodes.

Fabrication method of carbon nanotube film and sensor based on carbon nanotube film

A probe of a scanning probe microscope having a sharp tip and an increased electric characteristic by fabricating a planar type of field effect transistor and manufacturing a conductive carbon nanotube on the planar type field effect transistor. To achieve this, the present invention provides a method for fabricating a probe having a field effect transistor channel structure including fabricating a field effect transistor, making preparations for growing a carbon nanotube at a top portion of a gate electrode of the field effect transistor, and generating the carbon nanotube at the top portion of the gate electrode of the field effect transistor.

Growing community of inventors

Pohang-si, South Korea

Geunbae Lim