Patents Assigned to Northeast Normal University
  • Patent number: 11828911
    Abstract: The present disclosure provides a metamaterial absorber integrated long-wave infrared focal plane array (LWIRFPA), including: a resonator layer, a dielectric layer, and a metal layer. The resonator layer is of a sub-wavelength periodic resonator array structure, generates surface plasmon resonance (SPR), and is made of a metal or metalloid material. The SPR refers to propagating surface plasmon resonance (PSPR) or localized surface plasmon resonance (LSPR). By using corresponding shape and structural size of a resonator, the present disclosure achieves broadband absorption, narrow-band absorption, multi-wavelength absorption, polarization-selective absorption, etc. By integrating the metamaterial absorber on the IRFPA, not only can the absorptivity be improved, but also more functions can be achieved by the IRFPA.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: November 28, 2023
    Assignee: Northeast Normal University
    Inventors: Zhongzhu Liang, Zheng Qin, Haiyang Xu, Fuming Yang, Dejia Meng, Enzhu Hou, Jiangang Ma, Yichun Liu
  • Patent number: 11619627
    Abstract: The present invention discloses a pencil-like optical fiber sensor probe, including an inner tube, a light screening casing, a clamping device, an optical fiber and an optical probe; a portable immunosensor, including the pencil-like optical fiber sensor probe, an immersion immune response reagent strip, a touch-screen computer, a compact battery-powered sensitive photon counting detector and a case; and a use of the immunosens in detecting inflammatory markers. The design of the pencil-like optical sensor probe greatly simplifies the immune analysis process by combining the immersion immune response reagent strip. Each optical probe allows for up to 10 immunoassays, which reduces the experimental cost and avoids frequent replacement of the probe. The integrated detecting system is powered by battery which is suitable for in-situ analysis and detection. The sensor also has a high stability and sensitivity.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: April 4, 2023
    Assignees: Northeast Normal University, Changchun JingKeOuDe Science and Education Instrument Co., Ltd.
    Inventors: Li Yang, Rongbin Nie, Yunxiang Feng, Chengwei Feng
  • Patent number: 11411190
    Abstract: A conformal organic field-effect transistor includes an elastic substrate, a gate electrode, a polymer insulating layer, an organic semiconductor layer, and a source electrode and a drain electrode from the bottom up, the source electrode and the drain electrode being embedded in the organic semiconductor layer.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: August 9, 2022
    Assignee: NORTHEAST NORMAL UNIVERSITY
    Inventors: Qing xin Tang, Xiaoli Zhao, Yan hong Tong, Yi chun Liu
  • Patent number: 11155485
    Abstract: The present invention discloses a high-purity separation method of iron ions from an aqueous solution containing heavy metal ions, wherein after pretreatment of an aqueous solution containing heavy metal ions, sedimentation containing iron ions are collected, nitric acid or sulfuric acid is added for dissolution, and then a reducing agent is added to the dissolved solution; and after heating and sealing reaction, red sedimentation is generated at the bottom, The sedimentation has a high purity, and the residual amount of iron in the solution is less than 0.4 mg/L. In the method, iron ions in the solution can be converted to hematite crystals at a high purity, and the solution has an excellent retention rate of heavy metal ions, the reaction time is short, the separation efficiency is high, the operation is simple, and the cost is low.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: October 26, 2021
    Assignee: NORTHEAST NORMAL UNIVERSITY
    Inventors: Suiyi Zhu, Zhan Qu, Yang Huo, Jiancong Liu, Rui Bian
  • Patent number: 11028000
    Abstract: The present invention discloses a method for preparing Erdite rod-shaped particles for water treatment by utilizing iron-containing waste mud in an underground water plant. In the method, aqueous iron mud is subjected to mechanical dehydration to obtain a first aqueous iron mud; sodium sulfide is added to the first aqueous iron mud to obtain a first mixture, wherein the ratio of the weight of the first aqueous iron mud to the volume of sodium sulfide is between 3% and 15%; water of an equal volume is added to the first mixture, and the obtained solution is heated in an airtight manner to 140° C.-270° C.; centrifugal treatment is performed to obtain a supernatant and a solid, and the solid is subjected to vacuum drying at 40° C.-60° C. for 24 h to obtain Erdite rod-shaped particles.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: June 8, 2021
    Assignee: NORTHEAST NORMAL UNIVERSITY
    Inventors: Suiyi Zhu, Ge Dong, Mingxin Huo, Zhan Qu, Dejun Bian
  • Publication number: 20210154156
    Abstract: Disclosed is application of emodin in inhibiting amyloid ?-protein (A?) accumulation, improving cognitive and memory abilities, and reducing senile plaques. Alzheimer's disease (AD) is a neurodegenerative disease which is characterized in that nerve cell fibers are entangled. A? plaques are deposited, and a cognitive function is impaired to a pathological feature, and extracellular toxicity accumulation of A? is considered as one of main links of AD pathogenesis. In the present invention, it is discovered that emodin can obviously inhibit accumulation of an A?42 monomer and formation of fibers and inhibit formation of a ? secondary structure, can improve spatial memory learning ability of an AD mouse, and can obviously clear amyloid plaques in APP/PS1 double-transpenic AD model mouse brain tissues. It shows that emodin can be applied to treatment of AD, and research and development of related medicaments.
    Type: Application
    Filed: January 14, 2019
    Publication date: May 27, 2021
    Applicant: NorthEast Normal University
    Inventors: Xiaomeng LI, Lichun WANG, Xiaowan WANG, Jiale LI, Chuanjian LAN, Jiang LI
  • Patent number: 10723998
    Abstract: Disclosed is a use of ethyl p-methoxycinnamate and derivatives thereof in preparing drugs, culture media, regulating agents or cosmetic and skin caring products for maintaining self-renewal and pluripotency of stem cells. The stem cells comprise adult stem cells, embryonic stem cells and induced pluripotent stem (iPS) cells. Also disclosed is a use of ethyl p-methoxycinnamate and the derivatives thereof in in-vitro amplification of stem cells and preparation of induced pluripotent stem (iPS) cells and a use of ethyl p-methoxycinnamate and the derivatives thereof in preparing drugs for treating cell deletion or injury diseases.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: July 28, 2020
    Assignee: Northeast Normal University
    Inventors: Yongli Bao, Yuxin Li, Hongshuang Qin
  • Patent number: 10135016
    Abstract: A flexible planar embedded laminated electrode can be manufactured by a method in which an octadecyl trichloro silane connected on the surface of a substrate; a source electrode, a drain electrode and a gate electrode are manufactured using photoetching; mercaptopropyl trimethoxysilane is connected at surfaces of metal electrodes of the source electrode, the drain electrode and the gate electrode; a polydimethylsiloxane is spin-coated on the respective surfaces for metal electrodes of the above electrodes; the gate electrode spin-coated with polydimethylsiloxane is removed from the substrate; oxygen plasma treatments are performed, so as to form hydroxy on the surfaces; the source electrode and the drain electrode are cut, and the gate electrode, the source electrode and the drain electrode are connected to form an integral to obtain the flexible planar embedded laminated electrode.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: November 20, 2018
    Assignee: Northeast Normal University
    Inventors: Yanhong Tong, Yichun Liu, Qingxin Tang, Xiaoli Zhao
  • Publication number: 20180195039
    Abstract: Disclosed is a use of ethyl p-methoxycinnamate and derivatives thereof in preparing drugs, culture media, regulating agents or cosmetic and skin caring products for maintaining self-renewal and pluripotency of stem cells. The stem cells comprise adult stem cells, embryonic stem cells and induced pluripotent stem (iPS) cells. Also disclosed is a use of ethyl p-methoxycinnamate and the derivatives thereof in in-vitro amplification of stem cells and preparation of induced pluripotent stem (iPS) cells and a use of ethyl p-methoxycinnamate and the derivatives thereof in preparing drugs for treating cell deletion or injury diseases.
    Type: Application
    Filed: May 5, 2015
    Publication date: July 12, 2018
    Applicant: NORTHEAST NORMAL UNIVERSITY
    Inventors: Yongli BAO, Yuxin LI, Hongshuang QIN
  • Patent number: 9893286
    Abstract: The present invention provides an organic single crystal field effect circuit and method for preparing the same.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: February 13, 2018
    Assignee: Northeast Normal University
    Inventors: Qingxin Tang, Yichun Liu, Yanhong Tong, Xiaoli Zhao