中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

33 records (took 0.022 seconds)

    ANION CONDUCTIVE POLYMERS AND RELATED METHODS
    22.
    发明申请
    ANION CONDUCTIVE POLYMERS AND RELATED METHODS 有权

    公开(公告)号：US20210135265A1

    公开(公告)日：2021-05-06

    申请号：US17088519

    申请日：2020-11-03

    Applicant: Massachusetts Institute of Technology

    Inventor： Timothy Manning Swager ,  Jeffrey C. Grossman ,  Sibo Lin ,  Yoonseob Kim ,  Yanming Wang ,  Arthur France-Lanord ,  You-Chi Wu ,  Yifan Li ,  Yichong Wang

    IPC: H01M8/1032 ,  B01J47/12 ,  B01J41/07 ,  B01J41/13 ,  C08J5/22 ,  H01M8/1027

    Abstract: A major challenge in the development of anion exchange membranes for fuel cells is the design and synthesis of highly stable (chemically and mechanically) and conducting membranes. Membranes that can endure highly alkaline environments while rapidly transporting hydroxides are desired. A design for using cross-linked polymer membranes is disclosed to produce ionic highways along charge delocalized pyrazolium and homoconjugated triptycenes. The ionic highway membranes show improved performance in key parameters. Specifically, a conductivity of 111.6 mS cm−1 at 80° C. was obtained with a low 7.9% water uptake and 0.91 mmol g−1 ion exchange capacity. In contrast to existing materials, these systems have higher conductivities at reduced hydration and ionic exchange capacities, emphasizing the role of the highway. The membranes retain more than 75% of initial conductivity after 30 days of alkaline stability test. This effective water management through ionic highways is confirmed by density functional theory and Monte Carlo studies. A single cell with platinum group metal catalysts at 80° C. showed a high peak density of 0.73 W cm−2 (0.45 W cm−2 from silver-based cathode) and stable performance during 400 h tests.

    SYSTEMS AND METHODS FOR AFFECTING INTERACTIONS OF ELECTROMAGNETIC RADIATION WITH JANUS DROPLETS FOR SENSITIVE DETECTION OF SPECIES
    29.
    发明申请
    SYSTEMS AND METHODS FOR AFFECTING INTERACTIONS OF ELECTROMAGNETIC RADIATION WITH JANUS DROPLETS FOR SENSITIVE DETECTION OF SPECIES 有权

    公开(公告)号：US20210080456A1

    公开(公告)日：2021-03-18

    申请号：US16932392

    申请日：2020-07-17

    Applicant: Massachusetts Institute of Technology

    Inventor： Timothy Manning Swager ,  Jie Li ,  Suchol Savagatrup ,  Zachary P. Nelson ,  Kosuke Yoshinaga ,  Cassandra Zentner

    IPC: G01N33/543 ,  G01N33/569

    Abstract: Embodiments described herein may be useful in the detection of analytes. The systems and methods may allow for a relatively simple and rapid way for detecting analytes such as chemical and/or biological analytes and may be useful in numerous applications including sensing, food manufacturing, medical diagnostics, performance materials, dynamic lenses, water monitoring, environmental monitoring, detection of proteins, detection of DNA, among other applications. For example, the systems and methods described herein may be used for determining the presence of a contaminant such as bacteria (e.g., detecting pathogenic bacteria in food and water samples which helps to prevent widespread infection, illness, and even death). Advantageously, the systems and methods described herein may not have the drawbacks in current detection technologies including, for example, relatively high costs, long enrichment steps and analysis times, and/or the need for extensive user training. Another advantageous feature provided by the systems and methods described herein includes fabrication in a relatively large scale. In some embodiments, the systems and methods may be used in conjunction with a detector including handheld detectors incorporated with, for example, smartphones (e.g., for the on-site detection of analytes such as pathogenic bacteria).

    Wireless oxygen dosimeter
    30.
    发明授权
    Wireless oxygen dosimeter 有权

    公开(公告)号：US10719755B2

    公开(公告)日：2020-07-21

    申请号：US15942418

    申请日：2018-03-30

    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

    Inventor： Timothy Manning Swager ,  Rong Zhu ,  Maude Desroches ,  Bora Yoon

    IPC: G06K19/077 ,  G06K19/07 ,  G01N27/12

    Abstract: A tag for detecting an analyte can include a radio frequency identification tag including a sensor portion, the sensor portion configured to change resistivity when the radio frequency identification tag contacts or interacts with an analyte, whereby the resistivity change alters an output of the radio frequency identification tag, wherein the sensor portion includes a circuit, and wherein the sensor portion is configured to activate the circuit or deactivate the circuit when contacted or having interacted with the analyte, wherein the sensor portion includes a conductive material associated with a polymer complex.

Patent Agency Ranking