A novel electrochemical sensor for chlorophenols based on the enhancement effect of Al-doped mesoporous cellular foam

Yu, Yan; Jiang, Cuiwen; Yan, Feiyan; Xie, Liping; Li, Tao; Wang, Yanli; Liang, Wei

doi:10.1016/j.jelechem.2017.11.074

Cited by 13 publications

(8 citation statements)

References 33 publications

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“…In the literature, EE% between 40 and 67 was found for colistin encapsulated liposomes [15, 24]. Higher EE% values for CMS were obtained in our study compared to the literature [25]. In addition of SA, cationic lipid, increased the EE% of CMS due to negative charge of CMS.…”

Section: Resultscontrasting

confidence: 50%

Electrochemical Analysis of Liposome‐encapsulated Colistimethate Sodium

2022

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In this study, the neutral and cationic liposomal formulations of Colistimethate sodium (CMS), an antibiotic for multi‐drug resistant gram‐negative bacteria, were prepared and electrochemical quantification of CMS from these liposomes were achieved. This is the first study of the electrochemical detection of CMS released from liposomes. First, the electrochemical properties of CMS were analysed, then the encapsulation efficiency, and the release kinetic of CMS from liposomes were determined with Differential Pulse Voltammetry (DPV) measurements. In addition, Cyclic Voltammetry were applied to determine oxidation signal of CMS. A higher encapsulation efficiency was found in the cationic liposome compared to the neutral liposome. Moreover, CMS was controlled released from liposomes with zero‐order drug release kinetics.

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Section: Resultscontrasting

confidence: 50%

Electrochemical Analysis of Liposome‐encapsulated Colistimethate Sodium

2022

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“…C represents capacitance; CPE, R , and n represent non‐ideal capacitance, resistance, and capacitance coefficient, respectively. [ 11,23 ]

\begin{matrix} C = \frac{{false(R \times CPE false)}^{\frac{1}{n}}}{R} \end{matrix}

…”

Section: Resultsmentioning

confidence: 99%

Corrosion Resistance and Formation Mechanism of Anodic Oxidation–Organic Structure Super‐Hydrophobic Self‐Assembled Film

Wen

Wang

et al. 2021

Adv Materials Inter

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cannot provide longer anti-corrosion protection. Therefore, it is very valuable and significant to develop a surface treatment method for Al alloy with higher corrosion resistance and stability. [8] Preparing super-hydrophobic film on metal surface is one of the methods to improve metal corrosion resistance. The main purpose is to use the super-hydrophobic properties of the metal surface to cut back the chance of touching with the corrosive medium in the solution on the metal surface, thereby, the corrosion resistance of the metal surface can be improved. Surfaces with contact angles greater than 150° and roll angles less than 10° are considered super-hydrophobic. [9] In recent years, many researchers have conducted more in-depth research on the properties of super-hydrophobic surfaces. [10][11][12][13] Many excellent physical and chemical properties are shown by superhydrophobic surface, such as, anti-icing, heat transfer, and self-cleaning, [14] but few have been used in the field of metal surface corrosion protection. In order to improve the corrosion resistance of Al alloy, the preparation of super-hydrophobic film on Al alloy surface is considered to be the effective protection method. [5,12] Generally, the two-step method-based Cassie mode contacts were recognized as a classic super-hydrophobic preparation method; the first step is a rough surface structure prepared, and the second step is surface modification. [15] Therefore, the first step is to build a rough structure through anodizing, which can act as an intermediate layer, improve adhesion, and provide an interface for the organic coating. Then, build a composite film layer by self-assembly technology. [7,16] The basic principle of self-assembly technology is realized by chemical adsorption between the solid/liquid interfaces. It forms a monolayer that is oriented and closely at the interface of the two phases. [17] The solid substrate is immersed in the organic solution of the surfactant, and the functional groups of the active agent molecules react with the surface of the substrate material. The film is a compact 2D monomolecular film with a certain orientation, with chemical bonds on the solid surface. Van der Waals forces are formed between molecules. [18] Self-assembly technology has many advantages in real life, such as environmental protection, simple operation, wide practicability, and excellent corrosion resistance. At present, the self-assembled membrane technology of metal anti-corrosion In this article, the perfluorooctyltriethoxysilane (POTS) is used as a low surface energy substance to self-assemble in Al 2 O 3 surface to prepare a corrosionresistant composite film by anodization and self-assembly technology. The morphology, structure, wettability, and chemical composition of the composite film are characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, water contact angle, and X-ray photoelectron spectroscopy. The corrosion resistance of the composite film is tested through electrochemical test and the ...

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“…Not only carbonaceous materials but also surfactants, 102 metals, 90 metal oxides, 68 ionic liquids, 66 enzymes, 85,103 and metal-organic frameworks (MOFs) 82 can be incorporated into the CPE to improve the sensing performance towards CPs. One technical drawback of the CPE lies in the fact that the electrocatalytic materials used usually have high leachability from the CPE surface after continuous work, causing concern for the stability and reproducibility.…”

Section: Electrochemical Cell Configurationmentioning

confidence: 99%

“…There are diverse kinds of working electrodes currently in use, including the classic noble metal electrodes (Au and Pt), indium tin oxide (ITO) glass electrodes, or carbonic electrodes like the glassy carbon electrode (GCE), carbon paste electrode (CPE), carbon ceramic electrode (CCE) and boron-doped diamond electrode (BDDE), for which a wide range of active materials can be used to modify the electrochemical performance. 72–95 The modified working electrodes are highly tunable in both the structure and function that help increase the signal response of CPs and the detection selectivity. Various property and performance factors are normally considered when trying to identify the best materials for modifying a certain type of electrode, and the typical factors include the background current, potential window, electrical conductivity, response rate and electrocatalytic activity towards CPs, chemical stability, machinable properties, portability, reusability, costs, etc.…”

Section: Electrochemical Detection Systems For Chlorophenolsmentioning

confidence: 99%

“…100 The advantages of the CPE stem from the following aspects: 101,102 great surface renewability, increased active sites originating from the randomly exposed edge and the basal plane of the graphite powder, low background current due to the less exposed area and low capacitance, efficient mass transport of electroactive molecules, and great potential to incorporate diverse active materials into the paste composite. Not only carbonaceous materials but also surfactants, 102 metals, 90 metal oxides, 68 ionic liquids, 66 enzymes, 85,103 and metal–organic frameworks (MOFs) 82 can be incorporated into the CPE to improve the sensing performance towards CPs. One technical drawback of the CPE lies in the fact that the electrocatalytic materials used usually have high leachability from the CPE surface after continuous work, causing concern for the stability and reproducibility.…”

Section: Construction Of Working Electrodesmentioning

confidence: 99%

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