公开(公告)号：WO2018045377A1

公开(公告)日：2018-03-08

申请号：PCT/US2017/050086

申请日：2017-09-05

Applicant: BREWER SCIENCE INC.

Inventor： GIEDD, Ryan E. ,  FURY, Jonathan J. ,  HARKER, Erik ,  LANDORF, Christopher

IPC: G01N27/12

Abstract: A process and electronic hardware and software system for rapidly heating and cooling an active sensing layer of a gas sensor is provided. A series of high-energy pulses is run through a CNT electrically-active layer, heating the layer to varying temperatures. The influence by various gases on the electrical conductivity of the layer can be used to identify gases (e.g., water vapor, alcohol, methane, O 2 , CO 2 , and CO). Advantageously, the same structure can also be used as a nanoheater, either within or outside the context of the gas sensor. The device can acquire a unique gas spectra in seconds, and thus accurately determine gas type and mixtures of gases based on a library of known spectra.

Abstract translation: 提供了用于快速加热和冷却气体传感器的主动感测层的过程和电子硬件和软件系统。 一系列高能量脉冲穿过CNT电活性层，将层加热到不同的温度。 各种气体对层的电导率的影响可用于识别气体（例如，水蒸汽，醇，甲烷，O 2，CO 2和CO以及CO ）。 有利地，相同的结构也可以用作气体传感器内部或外部的纳米加热器。 该设备可以在几秒钟内获得独特的气体谱图，从而根据已知谱图库精确确定气体类型和气体混合物。

公开(公告)号：WO2023278866A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/036003

申请日：2022-07-01

Applicant: BREWER SCIENCE, INC.

Inventor： CAO, Xi ,  LANDORF, Christopher ,  FURY, Jonathan J. ,  SIMMONS, Cody ,  BOWEN, Weston

IPC: G01N27/30 ,  G01N27/416 ,  G01N33/18 ,  C01B32/158 ,  G01N27/308 ,  G01N27/42

Abstract: Composites comprising metal-oxide-functionalized carbon nanotubes with metal nanoparticles deposited thereon are provided. These composites can be used as a working electrode in an electrochemical sensor to detect arsenite in aqueous solutions. The composite can electrochemically reduce As3+ to As0 due to increasing adsorption capability. In one embodiment, Au nanoparticles are deposited on the TiOx/CNT electrode to facilitate the adsorption of As3+ on the electrode surface for further electrochemical reduction process. Square wave voltammetry (SWV) is performed to detect the electrochemical reduction of arsenite in water.

公开(公告)号：WO2023278882A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/036035

申请日：2022-07-01

Applicant: BREWER SCIENCE, INC.

Inventor： FURY, Jonathan J. ,  CAO, Xi ,  LANDORF, Christopher ,  CHEN, Zun ,  NEESON, Alec ,  BOWEN, Weston ,  PETERS, Austin

IPC: G01N27/414 ,  G01N27/30 ,  G01N27/333 ,  G01N33/18 ,  G01N27/02 ,  G01N27/4146 ,  G01N27/4148

Abstract: A carbon nanotube (CNT) ion-selective field effect transistor (IS-FET) integrated device is used to detect nitrate ion in water. The device is operated as an IS-FET sensor, holding the measured potential between the drain electrode and an external reference electrode constant with a potentiometric circuit. Transduction occurs by changes in the effective CNT film gate potential with changes in the phase boundary potential of an ion-selective membrane (ISM) film. Moreover, the nitrate ISM film makes the device highly selective towards nitrate sensing. This printable IS- FET nitrate sensor enables real-time and high-resolution measurements and recording of nitrate ion in water at low cost.

公开(公告)号：WO2012177975A1

公开(公告)日：2012-12-27

申请号：PCT/US2012/043706

申请日：2012-06-22

Applicant: BREWER SCIENCE INC. ,  LANDORF, Christopher

Inventor： LANDORF, Christopher

IPC: H01B1/24 ,  H01B1/04 ,  C08L101/12 ,  C08L65/00

CPC classification number: C09D11/52 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/174 ,  H01B1/24

Abstract: New methods for preparing carbon nanotube films having enhanced properties are provided. The method broadly provides reacting carbon nanotubes (CNTs) and compounds comprising a polyaromatic moieties in the presence a strong acid. During the reaction process, the polyaromatic moieties noncovalently bond with the carbon nanotubes. Additionally, the functional! zing moieties are further functionalized by the strong acid. This dual functional] zation allows the CNTs to be dispersed at concentrations greater than 0.5 g/L in solution without damaging their desirable electronic and physical properties. The resulting solutions are stable on the shelf for months without observable bundling, and can be incorporated into solutions for printing conductive traces by a variety of means, including inkjet, screen, tlexographic, gravure printing, or spin and spray coating.

Abstract translation: 提供了制备具有增强性能的碳纳米管膜的新方法。 该方法广泛地提供了在存在强酸的情况下使碳纳米管（CNT）和包含多芳族部分的化合物。 在反应过程中，多芳族部分与碳纳米管非共价结合。 另外，功能！ 酸性部分进一步由强酸官能化。 这种双重功能化分析允许CNT在溶液中以大于0.5g / L的浓度分散，而不损害其理想的电子和物理性质。 所得到的溶液在搁板上稳定几个月，没有可观察到的捆扎，并且可以并入用于通过各种手段印刷导电迹线的解决方案，包括喷墨，筛网，tlexographic，凹版印刷或旋涂和喷涂。