Synthesis of Au nanorod-embedded and graphene oxide-wrapped microporous ZIF-8 with high electrocatalytic activity for the sensing of pesticides

Gan, Tian; Li, Jiebin; Li, Hanxiao; Liu, Yangxiao; Xu, Zheng

doi:10.1039/c9nr01101c

Cited by 71 publications

(27 citation statements)

References 35 publications

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“…Preceding the determination, the milk that is pasteurized was treated as mentioned in [27]. In brief, 5 ml milk sample that is pasteurized had been spiked with varying concentrations of CAP standard solution in 5 mL ethyl acetate.…”

Section: Preparation Of Milk Samplementioning

confidence: 99%

Electrochemical Determination of Chloramphenicol in Milk and Eye-drop Using Easily Activated Screen Printed Carbon Electrodes

Hailu

Tessema

2021

Preprint

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BackgroundAn analytical method that has fast response with cheap price and simple sample preparation is an ideal technique that the science need. An electrochemical sensor is an analytical method that suit for the above criteria to determine various samples using different electrode material. Providing detection method for chloramphenicol in farm product and drug sample using cheap electrode material is required due to its wide application in farm. ResultIn this study, direct and cost-effective activated SPCE was made electrochemically to determine chloramphenicol in eye-drop and pasteurized milk. The activation of the SPCE was straightforward and done by cycling 0.5 M KOH using LSV techniques. The employed surface imaging, spectroscopy, and electrochemical analysis show that there is an effective formation of new functional groups during the activation. The activated SPCE gave a superb current response for Chloramphenicol during the CV and SWV study using PBS of pH 6.5 compared to that of the bare one. Utilizing the optimal SWV conditions, a linear calibration curve was obtained using the range of 0.05‒100 µM with quite a small detection limit of 20 nM. ConclusionIn general, the higher sensitivity, stability and remarkable recovery results on the real sample analysis indicate that the activated screen printed carbon electrode can be applied to analyses sample in the field cause it have high stability, excellent reproducibility and long-term stability.

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Section: Preparation Of Milk Samplementioning

confidence: 99%

Electrochemical Determination of Chloramphenicol in Milk and Eye-drop Using Easily Activated Screen Printed Carbon Electrodes

Hailu

Tessema

2021

Preprint

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“…synthesized Au nanorods (AuNRs)‐embedded and graphene oxide‐wrapped microporous ZIF‐8 (Mansouriieh et al., 2019) with high electrocatalytic activity for the sensing pesticides. AuNRs@ZIF‐8@GO has excellent electrocatalytic performance that was demonstrated by the highly sensitive detection of niclosamide, dichlorophen, carbendazim, and diuron (Gan, Li, Li, Liu, & Xu, 2019). UiO‐66‐NH 2 loaded with cadmium (II) and lead (II) ions was fabricated for simultaneous electrochemical immunosensing of triazophos and thiacloprid (Yang et al., 2019).…”

Section: Recent Studies On Mofs For Pesticide Detection From Food Commentioning

confidence: 99%

Metal–organic framework for the extraction and detection of pesticides from food commodities

Wang

et al. 2020

Comp Rev Food Sci Food Safe

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Pesticide residues in food matrices, threatening the survival and development of humanity, is one of the critical challenges worldwide. Metal–organic frameworks (MOFs) possess excellent properties, which include excellent adsorption capacity, tailorable shape and size, hierarchical structure, numerous surface‐active sites, high specific surface areas, high chemical stabilities, and ease of modification and functionalization. These promising properties render MOFs as advantageous porous materials for the extraction and detection of pesticides in food samples. This review is based on a brief introduction of MOFs and highlights recent advances in pesticide extraction and detection through MOFs. Furthermore, the challenges and prospects in this field are also described.

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“…Metal-organic framework (MOF) materials are a class of porous materials consisting of inorganic nodes connected by organic linkers through self-assembled processes. [1][2][3] Electrochemical sensing, such as of pesticides, H 2 O 2 and heavy metal ions, [4][5][6] is a promising application, beneting from the diversity of structures and constituents of the MOF materials. 7,8 However, low quality in both electrical conductivity and mechanical stability in aqueous solution prevented pure MOF materials from being used in the fabrication of electrochemical sensors.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical characterization of and theoretical insight into a series of 2D MOFs, [M(bipy)(C₄O₄)(H₂O)₂]·3H₂O (M = Mn (1), Fe (2), Co (3) and Zn (4)), for chemical sensing applications

Hsieh

Huang

et al. 2021

RSC Adv.

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Synthesis of Au nanorod-embedded and graphene oxide-wrapped microporous ZIF-8 with high electrocatalytic activity for the sensing of pesticides

Abstract: Graphene oxide (GO) reinforced Au nanorods@ZIF-8 (AuNRs@ZIF-8) was developed for electrochemical sensing of pesticides with high sensitivity and good stability.

Cited by 71 publications

References 35 publications

Electrochemical Determination of Chloramphenicol in Milk and Eye-drop Using Easily Activated Screen Printed Carbon Electrodes

Electrochemical Determination of Chloramphenicol in Milk and Eye-drop Using Easily Activated Screen Printed Carbon Electrodes

Metal–organic framework for the extraction and detection of pesticides from food commodities

Electrochemical characterization of and theoretical insight into a series of 2D MOFs, [M(bipy)(C₄O₄)(H₂O)₂]·3H₂O (M = Mn (1), Fe (2), Co (3) and Zn (4)), for chemical sensing applications

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Synthesis of Au nanorod-embedded and graphene oxide-wrapped microporous ZIF-8 with high electrocatalytic activity for the sensing of pesticides

Abstract: Graphene oxide (GO) reinforced Au nanorods@ZIF-8 (AuNRs@ZIF-8) was developed for electrochemical sensing of pesticides with high sensitivity and good stability.

Cited by 71 publications

References 35 publications

Electrochemical Determination of Chloramphenicol in Milk and Eye-drop Using Easily Activated Screen Printed Carbon Electrodes

Electrochemical Determination of Chloramphenicol in Milk and Eye-drop Using Easily Activated Screen Printed Carbon Electrodes

Metal–organic framework for the extraction and detection of pesticides from food commodities

Electrochemical characterization of and theoretical insight into a series of 2D MOFs, [M(bipy)(C4O4)(H2O)2]·3H2O (M = Mn (1), Fe (2), Co (3) and Zn (4)), for chemical sensing applications

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Electrochemical characterization of and theoretical insight into a series of 2D MOFs, [M(bipy)(C₄O₄)(H₂O)₂]·3H₂O (M = Mn (1), Fe (2), Co (3) and Zn (4)), for chemical sensing applications