公开(公告)号：US20240100634A1

公开(公告)日：2024-03-28

申请号：US18370016

申请日：2023-09-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jaeseok JANG ,  Seunghyun BAIK

IPC: B23K35/02 ,  B22F1/054 ,  B22F1/142 ,  B23K35/26 ,  C22C12/00 ,  C22C13/00 ,  C22F1/16 ,  C22F3/00 ,  H01L23/00

CPC classification number: B23K35/025 ,  B22F1/0553 ,  B22F1/056 ,  B22F1/142 ,  B23K35/0244 ,  B23K35/262 ,  B23K35/264 ,  C22C12/00 ,  C22C13/00 ,  C22F1/16 ,  C22F3/00 ,  H01L24/13 ,  H01L24/16 ,  H01L24/81 ,  B22F2202/01 ,  B22F2304/058 ,  B23K2101/40

Abstract: A lead-free solder alloy composition includes a lead-free solder alloy; and a flower-shaped metal nano-particle including a metal core and protrusion portions extending from a surface of the metal core, wherein the metal core and the protrusion portions of the metal nano-particle include only one metal element.

公开(公告)号：US20230339023A1

公开(公告)日：2023-10-26

申请号：US18216985

申请日：2023-06-30

Applicant: University of Florida Research Foundation, Inc.

Inventor： Wei David Wei ,  Yueming Zhai

IPC: B22F9/24 ,  B82Y5/00 ,  C22B11/00 ,  C30B7/14 ,  C30B29/66 ,  B22F1/054

CPC classification number: B22F9/24 ,  B82Y5/00 ,  C22B11/04 ,  C30B7/14 ,  C30B29/66 ,  B22F1/054 ,  B22F1/0553 ,  B22F1/056 ,  B82Y30/00

Abstract: In one aspect, the present disclosure pertains to methods of making various noble metal nanoprisms, e.g., gold nanoprisms. In various aspects, the methods can comprise incubating, under dark conditions, a growth solution comprising: (a) a plurality of gold seed structures; (b) a gold precursor, and (c) a photocatalytic intermediary, such that during the incubating step multiply-twinned gold seed structures in the growth solution are preferentially enlarged. The disclosed methods can comprise separating the multiply-twinned gold seed structures from the growth solution based upon the size of the gold seed structures to produce an enriched growth solution. In some aspects, the methods comprise irradiating the enriched growth solution to produce the gold nanoprisms. In some aspects, the disclosed nanoprisms comprise silver.

公开(公告)号：US20240055165A1

公开(公告)日：2024-02-15

申请号：US18494838

申请日：2023-10-26

Applicant: REGENTS OF THE UNIVERSITY OF MINNESOTA

Inventor： Jian-Ping WANG ,  Bin MA ,  Jinming LIU ,  Yiming WU ,  YanFeng JIANG

IPC: H01F1/06 ,  B22F9/04 ,  C23C8/26 ,  C23C8/50 ,  C23C8/80 ,  H01F1/055 ,  H01F1/059 ,  C22C38/00 ,  C22C38/10 ,  B22F1/16 ,  B22F1/054

CPC classification number: H01F1/065 ,  B22F9/04 ,  C23C8/26 ,  C23C8/50 ,  C23C8/80 ,  H01F1/0551 ,  H01F1/059 ,  C22C38/00 ,  C22C38/001 ,  C22C38/10 ,  B22F1/16 ,  B22F1/054 ,  H01F1/061 ,  B22F1/0553 ,  B22F2301/35 ,  B22F2302/20 ,  B22F2304/054 ,  H01F1/0552 ,  B22F1/0547

Abstract: Example nanoparticles may include an iron-based core, and a shell. The shell may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example alloy compositions may include an iron-based grain, and a grain boundary. The grain boundary may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example techniques for forming iron-based core-shell nanoparticles may include depositing a shell on an iron-based core. The depositing may include immersing the iron-based core in a salt composition for a predetermined period of time. The depositing may include milling the iron-based core with a salt composition for a predetermined period of time. Example techniques for treating a composition comprising core-shell nanoparticles may include nitriding the composition.

公开(公告)号：US11796476B2

公开(公告)日：2023-10-24

申请号：US17158294

申请日：2021-01-26

Applicant: Research & Business Foundation Sungkyunkwan University

Inventor： Sung Ho Park ,  Sung Jae Yoo

IPC: B22F1/17 ,  G01N21/65 ,  B22F1/054 ,  B22F1/07 ,  B82Y15/00 ,  B82Y40/00

CPC classification number: G01N21/658 ,  B22F1/054 ,  B22F1/056 ,  B22F1/0553 ,  B22F1/07 ,  B22F1/17 ,  B22F2301/255 ,  B22F2304/056 ,  B82Y15/00 ,  B82Y40/00 ,  B22F2999/00 ,  B22F1/17 ,  C22C1/0466 ,  B22F2304/056 ,  B22F1/0553

Abstract: A double frame nanoparticle synthesis method includes: forming a first platinum layer of a closed loop structure on an edge region of a 2-dimensional gold nanoparticle; removing a portion of the gold nanoparticle in an exposed inner region thereof free of the first platinum layer, thereby forming a single frame structure; growing a first gold thin film on the single frame structure; forming a second platinum layer on inner and outer edge regions of the first gold thin film; removing a portion of the first gold thin film in an exposed region thereof free of the second platinum layer, thereby forming a double frame structure having an inner frame of a closed loop structure, and an outer frame having a closed loop structure surrounding the inner frame and partially connected to the inner frame; and forming a second gold thin film on a surface of the double frame structure.

公开(公告)号：US12071343B2

公开(公告)日：2024-08-27

申请号：US18107459

申请日：2023-02-08

Applicant: WILLIAM MARSH RICE UNIVERSITY

Inventor： Matthew R Jones ,  Zhihua Cheng ,  Yuchen Xing

IPC: B82B3/00 ,  B22F1/054 ,  B82Y30/00 ,  B82Y40/00

CPC classification number: B82B3/0066 ,  B22F1/0553 ,  B22F2301/255 ,  B22F2304/054 ,  B82Y30/00 ,  B82Y40/00

Abstract: The spontaneous assembly of chiral structures from building blocks that lack chirality is fundamentally important for colloidal chemistry and has implications for the formation of advanced optical materials. Here, we find that purified achiral gold tetrahedron-shaped nanoparticles assemble into two-dimensional superlattices that exhibit planar chirality under a balance of repulsive electrostatic and attractive van der Waals and depletion forces. A model accounting for these interactions shows that the growth of planar structures is kinetically preferred over similar three-dimensional products, explaining their selective formation.

公开(公告)号：US11912924B2

公开(公告)日：2024-02-27

申请号：US16702245

申请日：2019-12-03

Applicant: Korea University Research and Business Foundation

Inventor： Dong June Ahn ,  Sang Yup Lee ,  Yong Ho Cho

IPC: A01N1/02 ,  C09K5/20 ,  A23L3/37 ,  C01G7/00 ,  C09K3/18 ,  B22F1/054

CPC classification number: C09K5/20 ,  A01N1/0221 ,  A01N1/0284 ,  A23L3/37 ,  C01G7/00 ,  C09K3/18 ,  B22F1/0553 ,  C01P2004/12 ,  C01P2004/41 ,  C01P2004/64

Abstract: The present invention provides a composition for antifreezing including a gold (Au) nanostructure in which at least a portion thereof is concave, thereby it is possible to increase a survival rate of cells due to having excellent effect of inhibiting ice recrystallization when cryopreservation of the cells, and maintain a texture of food even when using in the freezing of food.

公开(公告)号：US11673197B2

公开(公告)日：2023-06-13

申请号：US17263832

申请日：2019-07-31

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Chad A. Mirkin ,  Liliang Huang ,  Haixin Lin

IPC: B22F9/18 ,  C25B11/089 ,  C25B1/23 ,  C25B1/01 ,  B22F9/30 ,  B22F1/07 ,  B22F1/054 ,  B01J23/56 ,  B82Y30/00 ,  B82Y40/00

CPC classification number: B22F9/18 ,  B01J23/56 ,  B22F1/054 ,  B22F1/07 ,  B22F9/30 ,  C25B1/01 ,  C25B1/23 ,  C25B11/089 ,  B22F1/0553 ,  B22F2301/25 ,  B82Y30/00 ,  B82Y40/00

Abstract: Provided herein are methods of preparing tetrahexahedra nanoparticles and methods of using the tetrahexahedra nanoparticles as an oxidative catalyst.

公开(公告)号：US20230347409A1

公开(公告)日：2023-11-02

申请号：US17923686

申请日：2021-05-17

Applicant: UNITIKA LTD.

Inventor： Hirotaka TAKEDA ,  Chikako YAMADA

IPC: B22F1/054 ,  B22F1/0545 ,  B22F9/24

CPC classification number: B22F1/0553 ,  B22F1/0545 ,  B22F9/24 ,  B22F2301/15

Abstract: The present invention provides a nickel nanowire, which is resistant to break by stress. The present invention relates to a nickel nanowire having a face-centered cubic lattice structure and a crystallite size in a direction of a (111) lattice plane of 10 nm or less.

公开(公告)号：US11731197B2

公开(公告)日：2023-08-22

申请号：US17694162

申请日：2022-03-14

Applicant: University of Florida Research Foundation, Inc.

Inventor： Wei David Wei ,  Yueming Zhai

IPC: B22F9/24 ,  B82Y5/00 ,  C22B11/00 ,  C30B7/14 ,  C30B29/66 ,  B22F1/054 ,  B82Y30/00 ,  B82Y40/00

CPC classification number: B22F9/24 ,  B22F1/054 ,  B22F1/056 ,  B22F1/0553 ,  B82Y5/00 ,  C22B11/04 ,  C30B7/14 ,  C30B29/66 ,  B82Y30/00 ,  B82Y40/00

Abstract: In one aspect, the present disclosure pertains to methods of making various noble metal nanoprisms, e.g., gold nanoprisms. In various aspects, the methods can comprise incubating, under dark conditions, a growth solution comprising: (a) a plurality of gold seed structures; (b) a gold precursor, and (c) a photocatalytic intermediary, such that during the incubating step multiply-twinned gold seed structures in the growth solution are preferentially enlarged. The disclosed methods can comprise separating the multiply-twinned gold seed structures from the growth solution based upon the size of the gold seed structures to produce an enriched growth solution. In some aspects, the methods comprise irradiating the enriched growth solution to produce the gold nanoprisms. In some aspects, the disclosed nanoprisms comprise silver.

公开(公告)号：US20230249966A1

公开(公告)日：2023-08-10

申请号：US18107459

申请日：2023-02-08

Applicant: WILLIAM MARSH RICE UNIVERSITY

Inventor： Matthew R. Jones ,  Zhihua Cheng ,  Yuchen Xing

IPC: B82B3/00 ,  B22F1/054

CPC classification number: B82B3/0066 ,  B22F1/0553 ,  B82Y30/00

Abstract: The spontaneous assembly of chiral structures from building blocks that lack chirality is fundamentally important for colloidal chemistry and has implications for the formation of advanced optical materials. Here, we find that purified achiral gold tetrahedron-shaped nanoparticles assemble into two-dimensional superlattices that exhibit planar chirality under a balance of repulsive electrostatic and attractive van der Waals and depletion forces. A model accounting for these interactions shows that the growth of planar structures is kinetically preferred over similar three-dimensional products, explaining their selective formation.