Emerging trends in microfluidic-assisted nanomaterial synthesis for their high-resolution gas sensing applications

IF 2.5 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Nano Futures Pub Date : 2023-07-21 DOI:10.1088/2399-1984/ace9a3
K. Ramya, K. Amreen, I. Pronin, Andrey A Karmanov, N. Yakushova, S. Goel
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Abstract

Conventional methods of detecting hazardous gases and aerated microorganisms were judged unfeasible for use in a point of use environment. The use of a lightweight prototype and an easy fabrication provides significant advantages over conventional gas sensing systems. It would be ideal if scientists could develop relatively small, sensitive gas sensors that could detect trace amounts of biomarker gases and airborne pollutants. In the realm of sensors, microfluidics technology enables the analysis of a small quantity of samples by facilitating the use of a minimum amount of sensor materials. Moreover, the capacity to scrutinise a diminutive sample volume result in a sensor that exhibits prompt responsiveness. However, attaining selectivity towards the target analyte has been a major challenge. With this objective of obtaining specificity in gas sensing, this comprehensive study highlights recent breakthroughs in microfluidic device design and synthesis of sensing materials for selective gas and aerated pollutants. The present review focuses on brief explanation of a microfluidic device design, the substrate material, channel size, shape, deposition, and cleaning methods for synthesis of selective gas sensing materials based on noble metals, semiconductor oxide nanoparticles, and their composites. Further, the gas sensing application of these materials is also discussed in detail. This article is the first to provide an extensive overview of the substrate materials, design fabrication, deposition, and cleaning techniques, microfluidic synthesis of sensing materials for selective gas sensing, and the various detection approaches required for novel and efficient gas sensing analysis using recent microfluidic technology.
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微流体辅助纳米材料合成及其高分辨率气敏应用的新趋势
传统的检测有害气体和曝气微生物的方法被认为不适合在使用点环境中使用。轻量级原型的使用和简单的制造提供了比传统气体传感系统显著的优势。如果科学家能够开发出相对较小、敏感的气体传感器,能够检测微量的生物标记气体和空气污染物,那将是理想的。在传感器领域,微流体技术通过促进使用最少量的传感器材料,使分析少量样品成为可能。此外,仔细检查小样本量的能力导致传感器表现出迅速的响应能力。然而,实现对目标分析物的选择性一直是一个主要的挑战。以获得气体传感的特异性为目标,这项综合研究突出了微流体装置设计和合成选择性气体和加气污染物传感材料的最新突破。本文综述了基于贵金属、半导体氧化物纳米颗粒及其复合材料的选择性气敏材料的微流控装置设计、衬底材料、通道尺寸、形状、沉积和清洗方法。此外,还详细讨论了这些材料在气敏方面的应用。本文首先提供了衬底材料,设计制造,沉积和清洁技术,选择性气敏传感材料的微流控合成,以及使用最新微流控技术进行新型高效气敏分析所需的各种检测方法的广泛概述。
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来源期刊
Nano Futures
Nano Futures Chemistry-General Chemistry
CiteScore
4.30
自引率
0.00%
发文量
35
期刊介绍: Nano Futures mission is to reflect the diverse and multidisciplinary field of nanoscience and nanotechnology that now brings together researchers from across physics, chemistry, biomedicine, materials science, engineering and industry.
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