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Formulations for enhanced chemiresistive sensing

A detection agent, paste technology, applied in the direction of nanotechnology for materials and surface science, analysis using chemical indicators, measuring devices, etc., can solve problems that do not mention the use of sensing

Inactive Publication Date: 2017-05-17
C2SENSE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Previously, Fukushima et al. have described the formation of pastes of SWCNTs and ionic liquids but without detector molecules and no mention of use in sensing (Fukushima et al., Science, 300, 2072-2074 and US 7,531, 114 B2)

Method used

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  • Formulations for enhanced chemiresistive sensing
  • Formulations for enhanced chemiresistive sensing
  • Formulations for enhanced chemiresistive sensing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] The following example describes the use of [Co(tpp)]ClO as a detection agent for the analyte 4 SWCNT-BMIMBF 4 Manufacture and measurement of sensors composed of paste.

[0098] Grind SWCNT, BMIM BF by using a mortar and pestle 4 And [Co(tpp)]ClO 4 The paste is prepared in 10 minutes. The composition of the paste is in BMIM BF 4 10 wt% SWCNT and [Co(tpp)]ClO in 4 Relative 1:1 mass ratio of SWCNT. The substrate was fabricated by using a thermal evaporator (Mill Lane Engineering, EV-2000) to deposit a gold electrode pattern with an electrode gap of 1 mm onto a glass slide. The electrode pattern was made using a shadow mask and layered with 10nm chromium and then 100nm gold. The sensor is manufactured by placing the paste between the electrodes using a metal spatula. Additional paste is added until the resistance of the sensor material between the electrodes is 7 kΩ to 30 kΩ for each sensor.

[0099] To determine the sensing capability of the device, the method described in ...

Embodiment 2

[0101] The following example describes the manufacture and measurement of a sensor composed of 3,6-di-2-pyridyl-l,2,4,5-tetrazine paste on a flexible paper device.

[0102] Grinding SWCNT and BMIM BF by using a mortar and pestle 4 Prepare paste. Then 3,6-di-2-pyridyl-1,2,4,5-tetrazine was added to obtain a 4:1 mass ratio (tetrazine:SWCNT) and the components were mixed. The substrate was manufactured by using a thermal evaporator (Mill Lane Engineering, EV-2000) to deposit a gold electrode pattern with an electrode gap of 1 mm onto weighing paper. The electrode pattern was made using a shadow mask and layered with 10nm of chromium and then 100nm of gold. The sensor is manufactured by using a metal spatula to place the paste between the electrodes. Additional paste is added until the sensor material resistance between the electrodes is 1 kΩ to 4 kΩ for each sensor.

[0103] In order to determine the sensing capabilities of the device, the method described in "Materials and Measure...

Embodiment 3

[0105] The following example describes [Co(tpp)]ClO on a paper device 4 Manufacture and measurement of paste sensors.

[0106] By grinding SWCNT, BMIM BF with an agate mortar and pestle 4 And [Co(tpp)]ClO 4 The paste is prepared in 10 minutes. Prepared three kinds of BMIM BF 4 5% by weight of SWCNT in the paste: [Co(tpp)]ClO 4 Relative to the 1:1, 5:1 and 10:1 mass ratio of SWCNT. The substrate was manufactured by using a thermal evaporator (Mill Lane Engineering, EV-2000) to deposit a gold electrode pattern with an electrode gap of 1 mm onto weighing paper. The electrode pattern was made using a shadow mask and layered with 10nm of chromium and then 100nm of gold. The sensor is manufactured by using a metal spatula to place the paste between the electrodes. Additional paste is added until the resistance of the sensor material between the electrodes is 7 kΩ to 30 kΩ for each sensor.

[0107] In order to determine the sensing capabilities of the device, the method described in "...

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Abstract

A sensor material includes a plurality of conductive carbonaceous nanomaterial particles, a detector selected to selectively interact with an analyte of interest; and an ionic liquid wherein the plurality of conductive carbonaceous nanomaterial particles, the detector and the ionic liquid are combined to form a paste. Further, the analyte can diffuse into the paste to interact with the detector to change the conductivity of the paste. Device based on said sensor material and methods or using said devices are also described.

Description

[0001] Cross references to related applications [0002] This application claims priority from U.S. Patent Application 62 / 024,924 filed on July 15, 2014, which is hereby incorporated by reference in its entirety. [0003] Incorporated by reference [0004] In order to more fully describe the state of the prior art known to those skilled in the art as of the date of the invention described herein, all patents, patent applications and publications cited herein are hereby incorporated by reference in their entirety. Background technique [0005] Gas sensing technology is being used in a wide variety of applications, such as safety monitoring, defense monitoring, process monitoring, or air quality control. Other applications (such as ethylene or bio-amine sensing in the food industry) can benefit from gas sensors, however, existing sensor technologies cannot meet the necessary requirements. [0006] Existing methods for detecting ethylene, biogenic amines or ammonia specifically include ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/52G01N31/22
CPCG01N33/54346B82Y30/00G01N27/127G01N33/5438G01N33/531
Inventor 扬·马库斯·施诺尔卡珊德拉·埃伦·曾特纳亚历山大·罗伯特森·佩蒂蒂莫西·曼宁·斯韦格
Owner C2SENSE INC