SYNTHESIS OF ULTRA-THIN METAL NANOWIRES USING ORGANIC FREE RADICALS

    公开(公告)号:US20200269323A1

    公开(公告)日:2020-08-27

    申请号:US16305387

    申请日:2017-05-23

    摘要: Provided are methods for synthesizing metal nanowires in solution using an organic reducing agent. A reaction mixture can be provided in solution with a metal salt, the organic reducing agent, and a solvent, where the solvent includes a surface ligand or consists of a surface ligand. The organic reducing agent, such as benzoin, can be decomposed in the reaction mixture to form organic free radicals that reduce metal ions of the metal salt into metal. The surface ligand of the solvent can coordinate with the metal in a manner so that metal nanowires are formed in solution. The diameter and morphology of the nanowires, reaction speed, reaction yield, and other features may be tunable by adjusting parameters such as reaction temperature and chemistry of the reducing agent.

    RESUSCITATION AND VENTILATION ASYNCHRONY MONITOR

    公开(公告)号:US20230138861A1

    公开(公告)日:2023-05-04

    申请号:US17898182

    申请日:2022-08-29

    IPC分类号: A61H31/00 A61B5/00

    摘要: Resuscitation and ventilation monitoring devices are provided. A device includes an inlet in fluid communication with airflows exchanged with lungs of a patient and an airflow meter for measuring characteristics of the airflows. A user may provide a controller with patient information, e.g., height, weight, gender, or age, via a measurement selector, enabling the controller to determine acceptable ranges of measured airflow characteristics. The device may determine a current mode of ventilation and associated ventilator settings based on the measured airflow characteristics. The device may also identify and filter out artifacts present in the ventilation signal, and determine whether a respiratory failure phenotype is present in the ventilation. If the current mode of ventilation and associated ventilator settings fall outside an acceptable range, the ventilation is classified as off-target and the controller may cause a sensory alarm to alert the user. The device may suggest a corrective action based on the type of off-target ventilation detected. The device may also continuously analyze ventilation to determine changes in lung compliance over time and to identify pathological changes over time. The device may work within a network of devices and user interfaces via wired or wireless communication, and is not restricted to or dependent on the type of ventilatory device with which a patient is being supported.

    High frequency hybrid phononic metamaterials for optical and electrical devices

    公开(公告)号:US11640014B2

    公开(公告)日:2023-05-02

    申请号:US17034091

    申请日:2020-09-28

    IPC分类号: G02B1/00

    摘要: Various metamaterials are disclosed. An example metamaterial comprises: a first portion with a plurality of nanoparticles; a second portion with a plurality of molecules configured to interlink with the plurality of nanoparticles; and a signal generator configured to provide a signal to the material. The first portion and the second portion of the material are configured to form a hybrid molecule-nanoparticle super-lattice. In some implementations, the first portion of the material is configured to have a mass configured to achieve, at least in part, a designated resonance frequency. The second portion of the material is, in some implementations, configured to have a molecular stiffness configured to achieve, at least in part, the designated resonance frequency. The signal generator is, in some implementations, configured to generate radio frequency (RF) signals.