Microfluidic nanotechnology for chemical sensing

用于化学传感的微流控纳米技术

• 批准号: RGPIN-2016-04095
• 负责人: Li, Paul
• 金额: $ 2.19万
• 依托单位: Simon Fraser University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=632362
• 关键词: Microfluidic; nanotechnology; chemical; sensing

Nanotechnology will be employed together with the microfluidic chip for sensing chemical compounds in my analytical chemistry research program. While the microchip provides precise and fast liquid delivery, nanotechnology improves functionality of the sensor materials to achieve sensing. There is a demand to quickly determine the compositions of chemical compounds in a liquid mixture, such as a fuel mixture consisting of gasoline and oil. Although this determination can be conducted by laboratory equipment, this goal is difficult to achieve by a simple dip-in sensor. A novel sensor, which is a nano-structured material such as the photonic crystal, will be developed. It can change color by organic liquids if they enter, and thus wet, the nano-sized pores in the nanomaterials. We will use a microfluidic method to precisely deliver reactants and control their subsequent reactions on the substrate to produce the photonic crystal-based sensor. We will examine in detail the various parameters that govern the wetting of the pores in the photonic crystals. The sensor will be in the form of a dip-in strip for simple visual testing of various commonly used fuel mixtures such as gasoline/oil (16:1) or gasoline/ethanol (95:5 or E5). The liquid compositions will change due to evaporation during storage of the fuel mixture at stores or at home, and so a simple domestic test for fuel mixture compositions will be advantageous to the general public.

在我的分析化学研究项目中，纳米技术将与微流控芯片一起用于化合物的传感。虽然微芯片提供了精确和快速的液体输送，但纳米技术改善了传感器材料的功能，实现了传感。需要快速确定液体混合物中化合物的组成，例如由汽油和油组成的燃料混合物。虽然这一测定可以通过实验室设备进行，但这一目标很难通过简单的浸入式传感器实现。将开发一种新型传感器，它是一种纳米结构材料，如光子晶体。如果有机液体进入纳米材料中的纳米大小的孔，并因此湿润，它可以改变颜色。我们将使用微流控方法精确地传递反应物，并控制它们在衬底上的后续反应，以生产基于光子晶体的传感器。我们将详细研究控制光子晶体中气孔润湿的各种参数。该传感器将呈浸入式条状，用于对汽油/油(16：1)或汽油/乙醇(95：5或E5)等各种常用燃料混合物进行简单的视觉测试。燃料混合物在商店或家中储存期间，液体成分会因蒸发而改变，因此，对燃料混合物成分进行简单的家庭测试将对普通公众有利。