公开(公告)号：US20220336821A1

公开(公告)日：2022-10-20

申请号：US17766273

申请日：2020-10-08

Applicant: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION ,  INSTITUTE FOR BASIC SCIENCE

Inventor： Jae Kook KIM ,  Yung Eun SUNG ,  Kug Seung LEE ,  Mi Ju KIM ,  Sung Jin KIM

IPC: H01M4/90 ,  H01M4/88

Abstract: A method for preparing a transition metal electrochemical catalyst according to an embodiment of the present disclosure includes dissolving a nitrogen precursor and a transition metal precursor in a polyol-based solvent so as to prepare a solution in which transition metal ions and free anions are coordinated, and mixing same with a support so as to prepare a mixture, igniting the mixture so as to carbonize the polyol-based solvent, thereby forming transition metal nanoparticles encompassed by carbon, performing heat treatment in order to carbonize remaining organic matter contained in the mixture, and removing, through acid treatment, impurities and transition metal nanoparticles not encompassed by carbon, and then removing remaining acid through washing and additional heat treatment, thereby a nanocatalyst having a structure in which a single-atom transition metal-nitrogen bonding structure and/or transition metal nanoparticles encompassed by carbon exist is synthesized.

公开(公告)号：US11428851B2

公开(公告)日：2022-08-30

申请号：US16888970

申请日：2020-06-01

Applicant: Research & Business Foundation Sungkyunkwan University ,  Institute for Basic Science

Inventor： Hyun Seok Lee ,  Young Hee Lee

IPC: G02B5/00 ,  G02B6/10 ,  G02B6/122 ,  G02F1/01

Abstract: A wavelength multiplexing device is disclosed. When light is irradiated on a first longitudinal end region of a metal nano-structure, surface plasmon polaritons are generated in the first longitudinal end region. The surface plasmon polaritons and the light are coupled with each other to form first coupled surface plasmon polaritons, wherein the first coupled surface plasmon polaritons propagate along and on a surface of the metal nano-structure. When the first coupled surface plasmon polaritons reach a two-dimensional material layer, excitons are induced in the two-dimensional material layer, wherein the induced excitons and the first coupled surface plasmon polaritons are coupled with each other to form second coupled surface plasmon polaritons. The second coupled surface plasmon polaritons propagate along and on a surface of the metal nano-structure toward a second longitudinal end thereof.

公开(公告)号：US20220267912A1

公开(公告)日：2022-08-25

申请号：US17629234

申请日：2020-07-21

Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION ,  INSTITUTE FOR BASIC SCIENCE

Inventor： Taeghwan HYEON ,  Yung-Eun SUNG ,  Heejong SHIN ,  Byoung-Hoon LEE ,  Euiyeon JUNG

IPC: C25B1/30 ,  B01J27/20 ,  B01J37/02 ,  B01J23/75 ,  C25B11/065 ,  C25B11/075

Abstract: A catalyst for producing hydrogen peroxide and a preparation method therefor are provided. The catalyst for producing hydrogen peroxide according to the embodiments of the present invention comprises a carbon-based support and a catalyst moiety that is bonded to the carbon-based support and comprises an M1-N bonding structure (M1 represents a transition metal atom). The method for preparing a catalyst for producing hydrogen peroxide according to the embodiments of the present invention comprises comprises preparing a carbon-based support, providing a transition metal atom (M1) to the carbon-based support, and doping nitrogen into the carbon-based support.

公开(公告)号：US20220257963A1

公开(公告)日：2022-08-18

申请号：US17674749

申请日：2022-02-17

Applicant: UIF (University Industry Foundation), Yonsei University ,  Institute for Basic Science

Inventor： Jin Woo CHEON ,  Jae Hyun LEE ,  Jung Uk LEE

IPC: A61N2/00 ,  A61N2/12

Abstract: The rotating magnetic field generating device for modulating the activity of cells according to an exemplary embodiment of the present invention may include a plurality of magnetic field generating units for generating a rotating magnetic field with an imaginary reference line as a rotation axis that are disposed to be spaced apart from the rotation axis; and an internal space in which a living body can be placed, wherein when an imaginary line in which the magnetic flux direction of the rotating magnetic field is horizontal is referred to as a reference line, the rotating magnetic field on the reference plane may satisfy Relationship Formulas 1 and 2 below, and wherein the area of the rotating magnetic field that satisfies Relationship Formulas 1 and 2 may be 0.1 cm2 or more: |Mc|≥1 mT  [Relationship Formula 1] |M75−Mc|/D75≤5.0 T/m  [Relationship Formula 2] In Relationship Formulas 1 and 2 above, Mc is the strength of the magnetic field at the position of the rotation axis, D75 is the distance from the rotation axis to the 75% position of the distance to the magnetic force generating unit, and M75 is the strength of the magnetic field at the position D75.

公开(公告)号：US20220177416A1

公开(公告)日：2022-06-09

申请号：US17536383

申请日：2021-11-29

Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY ,  INSTITUTE FOR BASIC SCIENCE

Inventor： Hyoyoung LEE ,  Suresh VASIMALLA ,  Seungeun LEE

IPC: C07C231/10 ,  C01G23/08 ,  B01J21/06 ,  B01J35/00 ,  B01J37/16 ,  C07C233/65 ,  C07D295/192 ,  C07D401/04

Abstract: Provided is a preparing method of an amide directly from a tertiary amine by using a reduced titanium dioxide (Blue TiO2), which is formed by mixing a titanium dioxide having an anatase phase and a rutile phase with a reducing agent and selectively reducing any one of the anatase phase and the rutile phase, as a photocatalyst.

公开(公告)号：US20220062883A1

公开(公告)日：2022-03-03

申请号：US17418581

申请日：2020-01-03

Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION ,  INSTITUTE FOR BASIC SCIENCE

Inventor： Taeghwan HYEON ,  Byounghoon LEE

IPC: B01J35/00 ,  B01J21/06 ,  B01J37/02 ,  B01J37/00 ,  B01J37/04 ,  B01J37/08 ,  B01J23/745 ,  B01J23/75 ,  B01J23/755 ,  B01J23/72 ,  B01J23/46 ,  B01J35/08

Abstract: A single atom catalyst and a method of forming the same are provided. The single atom catalyst comprises a support comprising a first metal oxide and a second metal atom located in the first metal oxide. The method of forming the single atom catalyst comprises forming a sacrificial nanoparticle, coating the sacrificial nanoparticle with a first metal oxide, adsorbing a second metal atom to the first metal oxide, forming a sacrificial layer on the support, and heating the first metal oxide.

公开(公告)号：US20220002388A1

公开(公告)日：2022-01-06

申请号：US17468590

申请日：2021-09-07

Applicant: INSTITUTE FOR BASIC SCIENCE

Inventor： Won Do HEO ,  Yun Ju Lee ,  Daseuli Yu ,  Byung Ouk Park

IPC: C07K16/00 ,  C07K14/00 ,  C07K16/14 ,  C07K16/18

Abstract: The present invention relates to the preparation of an antibody analogue capable of being activated reversibly, and uses thereof, and provides a fusion protein comprising an inactive first fragment of an antibody analogue is fused to a stimulus-induced dimerization protein.

公开(公告)号：US20220002362A1

公开(公告)日：2022-01-06

申请号：US17293568

申请日：2019-11-13

Applicant: INSTITUTE FOR BASIC SCIENCE

Inventor： Wondo HEO ,  Sungsoo KIM ,  Sang Kyu LEE ,  Taeyoon KYUNG

IPC: C07K14/47 ,  C07K14/705 ,  C12N15/86

Abstract: Provided is a CRY2 variant in which E279 and/or E281 having a negative charge in a N277SEGE281 sequence of SEQ ID NO: 1 is substituted with any one selected from the neutral amino acid group of alanine (A), isoleucine (I), leucine (L), valine (V), phenylalanine (F), methionine (M) and tryptophan (W), or in which S278 or G280 of a N277SEGE281 sequence of SEQ ID NO: 1 is substituted with any one selected from the bulky amino acid group of tryptophan (W) and phenylalanine (F).

公开(公告)号：US20210381968A1

公开(公告)日：2021-12-09

申请号：US17340696

申请日：2021-06-07

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION ,  INSTITUTE FOR BASIC SCIENCE

Inventor： Seok-Cheol HONG ,  Il Boem LEE ,  Minhaeng CHO ,  Hyeonmin MOON ,  Jin-Sung PARK

IPC: G01N21/47 ,  G02B21/06 ,  G02B21/04 ,  G02B27/28

Abstract: Disclosed is an interferometric scattering microscope. The interferometric scattering microscope includes a remote refocusing system adapted to reproduce light collected by a high numerical aperture objective lens using another objective lens and thus can acquire an image of an object in a sample without vertical movement of the objective lens or the sample.

公开(公告)号：US11190343B2

公开(公告)日：2021-11-30

申请号：US16200016

申请日：2018-11-26

Applicant: INSTITUTE FOR BASIC SCIENCE

Inventor： Kyung Ah Shim

IPC: H04L9/08 ,  H04L9/30 ,  H04L9/06 ,  G06F17/12 ,  G06F17/16

Abstract: An electronic device including a key generator is disclosed. The key generator acquires a first affine map, a second affine map, and a third map, and generates a public key using the first affine map, the second affine map, and the third map, the third map is a system of multivariate quadratic polynomials having n variables and m equations, at least one of the multivariate quadratic polynomials has oil-oil quadratic terms with non-zero coefficients, and the third map includes at least one set for defining vinegar variables used in an Oil and Vinegar method and index sets for defining oil variables used in the Oil and Vinegar method, and each of the first affine map, the second affine map, and the third map is a finite field.