Abstract: Disclosed are visible light-activatable antitumor self-assembled nanoparticles or antitumor immunity-inducing self-assembled nanoparticles. The self-assembled nanoparticles induce potent apoptosis in cancer cells and increase their own anticancer immunogenicity, thereby maximizing their therapeutic efficacy for cancer.
Type:
Grant
Filed:
November 18, 2021
Date of Patent:
December 5, 2023
Assignee:
Korea Institute of Science and Technology
Inventors:
Kwangmeyung Kim, In-Cheol Sun, Man Kyu Shim, Ji Woong Choi
Abstract: The present disclosure provides a composite wherein NaCl nanoparticles are uniformly dispersed on reduced graphene oxide (rGO), a positive electrode active material including the same, a sodium secondary battery including the same, and a method for preparing the same. The positive electrode active material according to the present disclosure has a structure wherein NaCl nanoparticles are uniformly dispersed on rGO in a one-step process through chemical self-assembly. Therefore, the positive electrode active material according to the present disclosure exhibits superior electrochemical properties with high capacity because the small NaCl particles are dispersed uniformly and is economically favorable because the preparation process is simple.
Type:
Grant
Filed:
February 18, 2021
Date of Patent:
December 5, 2023
Assignee:
Korea Institute of Science and Technology
Inventors:
Kyung Yoon Chung, Ha Kyung Roh, Moeez Iqra, Eun Seong Kim, Hun-Gi Jung, Won Young Chang
Abstract: Disclosed is a method of preparing colloidal silica, more particularly a method of producing high-concentration (10-55 wt %) colloidal silica by reacting water with a tetraalkyl orthosilicate (TMOS), tetraethyl orthosilicate (TEOS) based silane precursor as a starting material in the presence of a basic catalyst.
Type:
Application
Filed:
May 18, 2023
Publication date:
November 30, 2023
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: A dehydrogenation reaction apparatus includes a dehydrogenation reactor having a reaction vessel that stores a chemical hydride; and a methane generator that converts carbon monoxide generated in the dehydrogenation reactor into methane.
Type:
Grant
Filed:
July 25, 2022
Date of Patent:
November 28, 2023
Assignees:
HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Yongwoo Kim, Jin Woo Choung, Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Yoondo Kim, Yu-Jin Lee, Jaewon Kirk, Suk Woo Nam, Hyuntae Sohn, Yongmin Kim, Hyangsoo Jeong
Abstract: Disclosed is a recycling apparatus for a cross-linked polyethylene resin using a twin screw extruder. The recycling apparatus for a cross-linked polyethylene resin using a twin screw extruder according to an embodiment of the present disclosure includes: a raw material supply unit configured to supply a raw material that is a cross-linked polyethylene resin; and a twin screw extruder configured to receive the raw material from the raw material supply unit, the twin screw extruder including a cylinder and a twin screw installed inside the cylinder to rotate in the same direction, the twin screw extruder being configured to de-crosslink and recycle the raw material under a de-crosslinking reaction temperature and reaction pressure atmosphere while continuously transporting the raw material along the twin screw by the rotation of the twin screw.
Type:
Grant
Filed:
October 14, 2021
Date of Patent:
November 28, 2023
Assignee:
Korea Institute of Science and Technology
Inventors:
Soon Man Hong, Hang Kyu Cho, Seung Sang Hwang, Chong Min Koo, Seon Joon Kim, Albert Lee, Hwan Gyu Lee, Junpyo Hong
Abstract: Disclosed are a membrane electrode assembly for water electrolysis, a water electrolysis cell including the membrane electrode assembly, and a method for fabricating the membrane electrode assembly. An anion exchange membrane of the membrane electrode assembly for water electrolysis includes a polymer having a stable backbone without aryl ether linkages and containing piperidinium groups with high chemical stability and phenyl-based blocks with excellent mechanical properties introduced therein. Due to its structure, the polymer has improved alkaline stability and processability and excellent mechanical properties, based on which the durability of the membrane electrode assembly can be improved. Therefore, the membrane electrode assembly for water electrolysis can be used to manufacture a water electrolyzer with high current density, low resistance, and improved life characteristics.
Type:
Application
Filed:
September 23, 2022
Publication date:
November 16, 2023
Applicants:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
Inventors:
So Young LEE, Hyoung-Juhn KIM, Sae Yane BAEK, Ju Yeon LEE, Young Moo LEE, Nanjun CHEN, Jong Hyeong PARK
Abstract: Provided is a device for removing nitrogen oxide, the device including an inflow path for gas containing nitrogen oxide; and a reversible metal complex compound coming into contact with the gas containing nitrogen oxide which is introduced through the inflow path, wherein the reversible metal complex compound includes a central metal ion reacting and binding with nitrogen oxide; and a ligand coordinating with the central metal ion, wherein when the central metal ion is oxidized, the bound nitrogen oxide is separated, and the oxidized central metal ion is reduced to recombine with nitrogen oxide.
Type:
Grant
Filed:
September 29, 2022
Date of Patent:
November 14, 2023
Assignee:
Korea Institute of Science and Technology
Abstract: A specimen collection robot system for performing a specimen collection process having performing specimen collection of a subject with a swab and inserting the swab into a reagent tube has a robot including a gripper and a robot arm. The gripper is configured to grip objects with different diameters by using a same gripping portion. The robot is configured to perform the specimen collection process, by selectively gripping the swab and the reagent tube, without replacing the gripper.
Type:
Application
Filed:
June 22, 2022
Publication date:
November 9, 2023
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Keri KIM, Jeongryul KIM, Sang Kyung KIM, Suhun JUNG, Yonghwan MOON, Buchun SONG, Hong Jun CHO
Abstract: Disclosed is a light emitting diode using zinc oxide-aminopyrene core-shell quantum dots capable of improving the purity of blue light emission and securing long lifetime through the characteristic that emission transition of electrons proceeds in aminopyrene by applying the zinc oxide-aminopyrene quantum dots forming a core-shell structure with zinc oxide(ZnO) and 1-aminopyrene to the light emitting diode. The light emitting diode using the zinc oxide-aminopyrene core-shell quantum dots comprises a bule light-emitting layer of the ZnO@1-aminopyrene quantum dots having a core-shell structure in which ZnO quantum dots form a core, and 1-aminopyrene forms a shell.
Type:
Application
Filed:
May 3, 2023
Publication date:
November 9, 2023
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Won-Kook CHOI, Hong Hee KIM, Yong-Won SONG, Soohyung PARK
Abstract: The present specification discloses a membrane reactor comprising a reaction region; a permeate region; and a composite membrane disposed at a boundary of the reaction region and the permeate region, wherein the reaction region comprises a bed filled with a catalyst for dehydrogenation reaction, wherein the composite membrane comprises a support layer including a metal with a body-centered-cubic (BCC) crystal structure, and a catalyst layer including a palladium (Pd) or a palladium alloy formed onto the support layer, wherein ammonia (NH3) is supplied to the reaction region, the ammonia is converted into hydrogen (H2) by the dehydrogenation reaction in the presence of the catalyst for dehydrogenation reaction, and the hydrogen permeates the composite membrane and is emitted from the membrane reactor through the permeate region.
Type:
Grant
Filed:
July 7, 2022
Date of Patent:
November 7, 2023
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Young Suk Jo, Chang Won Yoon, Hyuntae Sohn, Hyangsoo Jeong, Seong Cheol Jang, Yeong Cheon Kim, Jonghee Han, Suk Woo Nam
Abstract: Embodiments relate to a resonator including a graphene layer formed on a support, and a tapered fiber disposed around at least part of the support, close to the graphene layer, wherein the tapered fiber has different paths along which light travels in a region extending from one end and a region extending from the other end, and a passive-mode-locked pulse laser oscillation system including the same.
Type:
Grant
Filed:
May 28, 2021
Date of Patent:
November 7, 2023
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: Provided are a composite in which metal nanoparticles are evenly dispersed and adsorbed to pores of a support, and a method of preparing the same. An amorphous nanostructure formed of inorganic polymers having a transition metal and a halogen element as a main chain via hydrogen bonding is used as a chemical template for forming the metal nanoparticles. The formed metal nanoparticles are evenly dispersed and adsorbed to the support with pores.
Type:
Grant
Filed:
January 25, 2019
Date of Patent:
October 31, 2023
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: Provided is a method for manufacturing a single-atom catalyst supported on a carbon support, including treating a mixture of a precursor of a carbon support and a precursor of a hetero element other than carbon through a dry vapor phase process, thereby supporting, on a carbon support, a single-atom catalyst containing a hetero element other than carbon.
Type:
Grant
Filed:
November 6, 2019
Date of Patent:
October 31, 2023
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Sukang Bae, Seoung-Ki Lee, Dae-Young Jeon, Myung Jong Kim, Nam Dong Kim
Abstract: The present disclosure relates to antioxidant for a polymer electrolyte membrane fuel cell electrode catalyst, which includes cerium hydrogen phosphate (HCe2(PO4)3(H2O)) in the form of a nanofiber, and an electrode and a membrane-electrode assembly including the same. The electrode for a polymer electrolyte membrane fuel cell of the present disclosure, wherein the antioxidant is dispersed, can improve the mechanical strength of an electrode catalyst layer and can minimize deterioration of chemical durability even after long-term operation. And, a fuel cell including the same can exhibit high output performance and can operate stably even after long-term operation.
Type:
Grant
Filed:
January 10, 2022
Date of Patent:
October 24, 2023
Assignee:
Korea Institute of Science and Technology
Inventors:
So Young Lee, Seung Ju Lee, Jin Hyeon Choi, Jeawoo Jung, Hyoung-Juhn Kim, Sung Jong Yoo, Hee-Young Park, Bora Seo, Jin Young Kim, Jong Hyun Jang
Abstract: Disclosed are a method for producing lactic acid from wastes containing cellulose and/or hemicellulose and a catalyst for thermochemical conversion reaction of wastes containing cellulose and/or hemicellulose. The method includes a step of adding a metal catalyst to wastes containing cellulose and/or hemicellulose and performing thermochemical conversion reaction. The method provides an effect of producing lactic acid from discarded wastes, e.g., waste paper such as waste corrugated paperboards, waste paper boxes, waste newspapers, etc.
Type:
Grant
Filed:
May 11, 2022
Date of Patent:
October 24, 2023
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Kwang Ho Kim, Chang Soo Kim, Jeong-Myeong Ha, Jae Wook Choi, Chunjae Yoo
Abstract: Disclosed are a catalyst electrode for a fuel cell, a method for fabricating the catalyst electrode, and a fuel cell including the catalyst electrode. The presence of an ionomer-ionomer support composite in the catalyst electrode prevents the porous structure of the catalyst electrode from collapsing due to oxidation of a carbon support to avoid an increase in resistance to gas diffusion and can stably secure proton channels. The presence of carbon materials with high conductivity is effective in preventing the electrical conductivity of the electrode from deterioration resulting from the use of a metal oxide in the ionomer-ionomer support composite and is also effective in suppressing collapse of the porous structure of the electrode to prevent an increase in resistance to gas diffusion in the electrode. Based on these effects, the fuel cell exhibits excellent performance characteristics and prevents its performance from deteriorating during continuous operation.
Type:
Grant
Filed:
February 22, 2022
Date of Patent:
October 24, 2023
Assignee:
Korea Institute of Science and Technology
Inventors:
Jong Hyun Jang, Hyun Seo Park, Hee-Young Park, Katie Heeyum Lim, Oh Sub Kim, Hyoung-Juhn Kim, Jin Young Kim, Sung Jong Yoo, Dirk Henkensmeir, So Young Lee
Abstract: A flash memory device is provided. The flash memory device is disposed on a substrate, a channel layer made of a two-dimensional material, sources and drains disposed at both ends of the channel layer, a tunneling insulating layer having a first dielectric constant and a tunneling insulating layer disposed on the channel layer, a floating gate made of a two-dimensional material, a blocking insulating layer disposed on the floating gate and having a second dielectric constant greater than the first dielectric constant, and an upper gate disposed on the blocking insulating layer.
Type:
Grant
Filed:
November 30, 2021
Date of Patent:
October 24, 2023
Assignee:
Korea Institute of Science and Technology
Inventors:
Joon Young Kwak, Eunpyo Park, Suyoun Lee, Inho Kim, Jong-Keuk Park, Jaewook Kim, Jongkil Park, YeonJoo Jeong
Abstract: A method for detecting a nanoplastic using a vertical nanogap electrode and a Raman spectroscopic device, includes, in a state where a vertical nanogap electrode is provided in aquatic environment in which a nanoplastic exists, forming a nanoplastic aggregate having a size of 1 ?m or more by applying an alternating voltage of a specific frequency to the vertical nanogap electrode, and collecting and concentrating the nanoplastic in a collector of the vertical nanogap electrode, and performing Raman spectroscopy on the nanoplastic aggregate concentrated in the collector of the vertical nanogap electrode to detect the nanoplastic constituting the nanoplastic aggregate.
Type:
Application
Filed:
November 2, 2022
Publication date:
October 19, 2023
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: According to a main objective of the present invention, the three-dimensional arrangement of solar cells is adjusted so as to use sunlight directly coming from the sun mainly for solar power generation while transmitting wavelengths necessary for the growth of plants and reflecting wavelengths unnecessary for or hindering the growth of plants among wavelengths of sunlight passing through the solar cells to use the reflected wavelengths for additional solar power generation. Sunlight reflected by the dichroic optical filter may be used to additionally generate electricity using solar cells provided perpendicular to the dichroic optical filter, thereby maximizing the use efficiency of sunlight.
Type:
Application
Filed:
December 27, 2022
Publication date:
October 19, 2023
Applicants:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Kookmin University Industry Academy Cooperation Foundation
Inventors:
Phillip LEE, Byoung Koun MIN, Je Hyeong JUNG, Young Rag DO, Chan Woo LEE
Abstract: Provided is a tele-operated forceps-driver variable stiffness master device including a master member to generate an input displacement signal generated by pressing with a user's finger, and a slave member to operate based on the input displacement signal, measure operation information, calculate a gripping force based on the operation information, and provide the master member with at least one of a stiffness change command signal or a force feedback based on the calculated gripping force.
Type:
Grant
Filed:
September 23, 2020
Date of Patent:
October 17, 2023
Assignee:
Korea Institute of Science and Technology
Inventors:
Donghyun Hwang, Sungwoo Park, Namseon Jang, Yong Seok Ihn, Sungwook Yang, Jinwoo Jeong, Sehyuk Yim, Sang Rok Oh