A Graphene-Based Nanosensor for In Situ Monitoring of Polycyclic Aromatic Hydrocarbons (PAHs)

2016 ◽  
Vol 16 (2) ◽  
pp. 1620-1623 ◽  
Author(s):  
Jared Church ◽  
Xiaochen Wang ◽  
Jean Calderon ◽  
Woo Hyoung Lee ◽  
Hyoung J. Cho ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
In Situ Monitoring ◽  
Polycyclic Aromatic

scholarly journals Future Trends for In Situ Monitoring of Polycyclic Aromatic Hydrocarbons in Water Sources: The Role of Immunosensing Techniques

Biosensors ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 142 ◽  
Author(s):  
Shifa Felemban ◽  
Patricia Vazquez ◽  
Eric Moore
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Surface Functionalization ◽  
Aromatic Hydrocarbons ◽  
Water Samples ◽  
In Situ Monitoring ◽  
Great Promise ◽  
Detection Techniques ◽  
Advantages And Disadvantages ◽  
Polycyclic Aromatic

Polycyclic aromatic hydrocarbons (PAHs) are hazardous environmental pollutants found in water, soil, and air. Exposure to this family of chemicals presents a danger to human health, and as a result, it is imperative to design methods that are able to detect PAHs in the environment, thus improving the quality of drinking water and agricultural soils. This review presents emerging immunoassay techniques used for in situ detection of PAH in water samples and how they compare to common-place techniques. It will discuss their advantages and disadvantages and why it is required to find new solutions to analyze water samples. These techniques are effective in reducing detection times and complexity of measurements. Immunoassay methods presented here are able to provide in situ analysis of PAH concentrations in a water sample, which can be a great complement to existing laboratory techniques due to their real-time screening and portability for immunoassay techniques. The discussion shows in detail the most relevant state-of-the-art surface functionalization techniques used in the field of immunosensors, with the aim to improve PAH detection capabilities. Specifically, three surface functionalization techniques are key approaches to improve the detection of PAHs, namely, substrate surface reaction, layer-by-layer technique, and redox-active probes. These techniques have shown promising improvements in the detection of PAHs in water samples, since they show a wider linear range and high level of sensitivity compared to traditional PAH detection techniques. This review explores the various methods used in the detection of PAH in water environments. It provides extra knowledge to scientists on the possible solutions that can be used to save time and resources. The combination of the solutions presented here shows great promise in the development of portable solutions that will be able to analyze a sample in a matter of minutes on the field.

scholarly journals Multi-Stage Redox Systems Based on Dicationic P-Containing Polycyclic Aromatic Hydrocarbons

2019 ◽  
Author(s):  
Thomas Delouche ◽  
Antoine Vacher ◽  
Elsa Caytan ◽  
Thierry Roisnel ◽  
Boris Le Guennic ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Organic Radical ◽  
Electrochemical Studies ◽  
Redox Systems ◽  
Redox States ◽  
Multi Stage ◽  
Polycyclic Aromatic ◽  
The Impact

In this communication, we report the straightforward<br>synthesis of unprecedented electron-acceptors based on dicationic P-containing PAHs (Polycyclic Aromatic Hydrocarbons) where two phosphoniums are connected through various PAHs backbones. The impact of pi-extension on both the optical and redox properties is investigated using a joint experimental/theoretical approach.<br>Finally, (spectro)-electrochemical studies prove that these<br>compounds possess three redox states and EPR studies confirms the in situ formation of an organic radical.

Ceria and Gold/Ceria Catalysts for the Abatement of Polycyclic Aromatic Hydrocarbons: An In Situ DRIFTS Study

2009 ◽  
Vol 52 (5) ◽  
pp. 492-500 ◽  
Author(s):  
Benjamín Solsona ◽  
Tomás García ◽  
Ramón Murillo ◽  
Ana M. Mastral ◽  
Edwin Ntainjua Ndifor ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
In Situ Drifts ◽  
Polycyclic Aromatic ◽  
Ceria Catalysts
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