罗丹明 6G 共轭β-环糊精作为新型荧光传感器用于肉类腐败检测

IF 4.1 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical Pub Date : 2024-09-29 DOI:10.1016/j.sna.2024.115933

Fatemeh Mohammadzadeh , Marzieh Golshan , Vahid Haddadi-Asl , Mehdi Salami-Kalajahi

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引用次数: 0

摘要

肉类富含人体必需的蛋白质和各种脂类。然而，它们在各种加工过程中容易受到酶反应和细菌微生物的影响，从而导致食品变质。鉴于对食品进行适当监测的重要意义，本研究试图利用罗丹明 6 G 荧光团和β-环糊精通过希夫碱反应结合在一起，创建一种氨敏感传感器，用于检测肉类分解情况。利用质子核磁共振（1H NMR）、傅立叶变换红外光谱（FT-IR）、X 射线衍射（XRD）和场发射扫描电子显微镜（FE-SEM）对基于罗丹明 6 G 和 β-环糊精的传感器（R6GBCD）进行了表征。R6GBCD 传感器显示出与 pH 值相关的荧光特性以及对氨的选择性响应。该传感器具有检测氨气和产生黄色荧光的能力，从而能够识别腐烂的肉类。因此，它有望成为验证食品安全的一种手段。

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Rhodamine 6G-conjugated β-cyclodextrin as a novel fluorescence sensor for meat spoilage detection

Meats are abundant in proteins and a variety of lipids that are essential for the human body. Nevertheless, they are susceptible to enzymatic reactions and bacterial microorganisms during various processes, which can result in food deterioration. This study endeavors to create an ammonia-sensitive sensor for the detection of meat decomposition by rhodamine 6 G fluorophore and β-cyclodextrin which are joined together via a Schiff-base reaction, in recognition of the significance of appropriate food monitoring. The rhodamine 6 G and β-cyclodextrin-based sensor (R6GBCD) was characterized using proton nuclear magnetic resonance (¹H NMR), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and field emission scanning electron microscopy (FE-SEM). The R6GBCD sensor showed a pH-dependent fluorescent properties and also selective responsivity to ammonia. The sensor demonstrated its capability to detect ammonia and generate yellow fluorescence, enabling it to identify rotting meat. As a result, it shows great promise as a mean of verifying the safety of food.

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...