公开(公告)号：US11599020B2

公开(公告)日：2023-03-07

申请号：US16832453

申请日：2020-03-27

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Chad A. Mirkin ,  Pengcheng Chen ,  Yuan Liu ,  Jingshan Du

IPC: G03F7/00 ,  C09D11/102 ,  C08K5/56 ,  C08G65/48 ,  B82Y40/00 ,  B82Y30/00

Abstract: A method of preparing a metal nanoparticle can include depositing an ink on a substrate using nanolithography to form a polymer reactor, wherein the ink comprises at least one metalloporphyrin functionalized polymer comprising a metal ion, porphyrin, and a polyethylene oxide polymer; and thermally annealing the polymer nanoreactor under conditions sufficient to form the nanoparticle. The thermal annealing can include a first stage that includes annealing the polymer nanoreactor at a temperature of about 100° C. to about 350° C. for a time sufficient to aggregate the metal ions in the polymer reactor, and a second stage that includes annealing the aggregated polymer nanoreactor at a temperature of about 500° C. to about 600° C. for a time sufficient to reduce the metal ion and decompose a polymer component of the polymer nanoreactor to thereby form the metal nanoparticle.

公开(公告)号：US20200310248A1

公开(公告)日：2020-10-01

申请号：US16832453

申请日：2020-03-27

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Chad A. Mirkin ,  Pengcheng Chen ,  Yuan Liu ,  Jingshan Du

IPC: G03F7/00 ,  C09D11/102 ,  C08K5/56 ,  C08G65/48

Abstract: A method of preparing a metal nanoparticle can include depositing an ink on a substrate using nanolithography to form a polymer reactor, wherein the ink comprises at least one metalloporphyrin functionalized polymer comprising a metal ion, porphyrin, and a polyethylene oxide polymer; and thermally annealing the polymer nanoreactor under conditions sufficient to form the nanoparticle. The thermal annealing can include a first stage that includes annealing the polymer nanoreactor at a temperature of about 100° C. to about 350° C. for a time sufficient to aggregate the metal ions in the polymer reactor, and a second stage that includes annealing the aggregated polymer nanoreactor at a temperature of about 500° C. to about 600° C. for a time sufficient to reduce the metal ion and decompose a polymer component of the polymer nanoreactor to thereby form the metal nanoparticle.

公开(公告)号：US11534831B2

公开(公告)日：2022-12-27

申请号：US16913461

申请日：2020-06-26

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Chad A. Mirkin ,  Liban Jibril ,  Pengcheng Chen

IPC: B22F9/30 ,  B01J19/00 ,  C21D1/607 ,  B82Y40/00 ,  B22F1/054

Abstract: Disclosed herein are methods for forming one or more nanoparticles. The methods include depositing a solution comprising a block copolymer and a metal salt into one or more square pyramidal nanoholes formed in a substrate, and annealing the substrate to provide a single nanoparticle in each of the one or more square pyramidal nanoholes.