Recent progress in smartphone-based techniques for food safety and the detection of heavy metal ions in environmental water

Sivakumar, R.; Lee, Nae Yoon

doi:10.1016/j.chemosphere.2021.130096

Cited by 114 publications

(45 citation statements)

References 104 publications

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“…The possibility of using CPs as an independent platform that provides fast optical measurements with the built-in camera and app without other accessories has resulted in their progressive application in both classical and advanced spot testing. Fields such as food, forensic, clinical, and environmental analysis, where on-site analysis in crime scene, point-of-care (POC), or monitoring in real time is required, have exponentially increased the number of methods in which this technology has been implemented [ 70 , 71 ].…”

Section: Spot Tests In Practice: Past and Present Of This Classical Methodsmentioning

confidence: 99%

“…In the following, the focus of consideration is put on the description of these sensors. In addition, smartphones can be used as electrochemical sensors [ 71 ].…”

Section: Spot Tests In Practice: Past and Present Of This Classical Methodsmentioning

confidence: 99%

“…The integrated device, which includes all those components, can be made with a 3D printer. The use of smartphones for counting cells that replaces the traditional flow cytometry devices is a good example of their application as bright-field microscopic imaging biosensors [ 70 , 71 ].…”

Section: Spot Tests In Practice: Past and Present Of This Classical Methodsmentioning

confidence: 99%

“…In most cases, the devices are customized with phone accessory holders and cartridge adaptors made using a 3D printer for placing the test specimen and light source, battery, etc., if required (Fig. 24 b, c) [ 70 , 71 ].

Fig.…”

Section: Spot Tests In Practice: Past and Present Of This Classical Methodsmentioning

confidence: 99%

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Spot tests: past and present

Doménech‐Carbó

2021

ChemTexts

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Graphic abstract Microchemistry, i.e., the chemistry performed at the scale of a microgram or less, has its roots in the late eighteenth and early nineteenth centuries. In the first half of the twentieth century a wide range of spot tests have been developed. For didactic reasons, they are still part of the curriculum of chemistry students. However, they are even highly important for applied analyses in conservation of cultural heritage, food science, forensic science, clinical and pharmacological sciences, geochemistry, and environmental sciences. Modern pregnancy tests, virus tests, etc. are the most recent examples of sophisticated spot tests. The present ChemTexts contribution aims to provide an overview of the past and present of this analytical methodology.

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Section: Spot Tests In Practice: Past and Present Of This Classical Methodsmentioning

confidence: 99%

“…In the following, the focus of consideration is put on the description of these sensors. In addition, smartphones can be used as electrochemical sensors [ 71 ].…”

Section: Spot Tests In Practice: Past and Present Of This Classical Methodsmentioning

confidence: 99%

Section: Spot Tests In Practice: Past and Present Of This Classical Methodsmentioning

confidence: 99%

Fig.…”

Section: Spot Tests In Practice: Past and Present Of This Classical Methodsmentioning

confidence: 99%

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Spot tests: past and present

Doménech‐Carbó

2021

ChemTexts

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“…However, these techniques need costly instruments, professional operations, and, in a few cases, more time for sample preparation, which can further restrict their utilization [12][13][14]. Thus, alternative methods have been developed for HMI detection considering affordability, rapidity, on-site detection, and different principles, including colorimetric [3,9], fluorescent [15,16], and electrochemical processes [4]. Owing to their various advantages such as ease of device fabrication, low cost, high stability, and rapid disposability, fluorescence chemosensors have drawn great interest compared with other methods [17,18].…”

Section: Introductionmentioning

confidence: 99%

Paper-Based Fluorescence Chemosensors for Metal Ion Detection in Biological and Environmental Samples

Sivakumar

Lee

2021

BioChip J

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The recognition and detection of metal ions present in biological and environmental samples have attracted great attention in recent years. Various analytical techniques are used to detect metal ions. Among these, the fluorescence technique is among the emerging methods because of its simplicity, selectivity, and applicability to bioimaging. Thus, this review particularly explores paper-based fluorescence chemosensors involved in metal ion detection. Significantly, the first section addresses relevant research on metal ion detection involving various techniques. In the second section, several sensing strategies such as photoinduced electron transfer, fluorescence resonance energy transfer, intramolecular charge transfer, chelation enhanced fluorescence, excited-state intramolecular proton transfer, and aggregation-induced emission for the detection of target metal ions (aluminum, copper, iron, lead, mercury, and zinc) are investigated. The third section particularly discusses the role of fluorescence sensor materials (e.g., fluorescein, rhodamine, naphthalimide, BODIPY, carbon dots, quantum dots) involved in the detection processes and their advantages and limitations. Overall, this article reviews 90 research articles on paperbased fluorescence chemosensors for metal ion detection published until 2021.

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Sensor heavy metal from natural resources for a green environment: A review relation between synthesis method and luminescence properties of carbon dots

et al. 2022

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Carbon dots (CDs) are 10‐nm nanomaterial classes as excellent candidates in various applications: physics, biology, chemistry, and food science due to high stable biocompatibility and high surface expansive. CDs produced from natural materials have received wide attention due to their unique benefits, easy availabilities, sufficient costs, and harmless to the ecosystem. The various properties of CDs can be obtained from various synthesis methods: hydrothermal, microwave‐assisted, and pyrolysis. The CDs have shown enormous potential in metal particle detection, colorimetric sensors, electrochemical sensors, and pesticide sensors. This review provides systematic information on a synthesis method based on natural resources and the application to the environmental sensors for supporting the clean environment. We hope this review will be useful as a reference source in providing the guidance or roadmap for new researchers to develop new strategies in increasing luminescence properties CDs for multi detection of heavy metals in the environment.

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Recent progress in smartphone-based techniques for food safety and the detection of heavy metal ions in environmental water

Cited by 114 publications

References 104 publications

Spot tests: past and present

Spot tests: past and present

Paper-Based Fluorescence Chemosensors for Metal Ion Detection in Biological and Environmental Samples

Sensor heavy metal from natural resources for a green environment: A review relation between synthesis method and luminescence properties of carbon dots

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