Determination of cefixime using a novel electrochemical sensor produced with gold nanowires/graphene oxide/electropolymerized molecular imprinted polymer

Dehghani, Mohammad; Nasirizadeh, Navid; Yazdanshenas, Mohammad Esmail

doi:10.1016/j.msec.2018.12.002

Cited by 77 publications

(26 citation statements)

References 36 publications

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“…Similar results have been reported about the enhancement of antibiotics removal from aqueous media by MIP. In this regard, one may refer to other studies such as Soledad‐Rodriguez et al (), Jafari et al () and Dehghani et al ().…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterisation of a selective adsorbent based on the molecularly imprinted polymer for the removal of cloxacillin antibiotic residue from milk

Jafari

Dehghani

Nasirizadeh

et al. 2019

Int J of Dairy Tech

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In recent decades, environmental pollution has been a subject of growing concern. This is partly due to the overuse of antibiotics, the consequent drug resistance and the discharge of drugs into the environment. The aim of this study was to synthesise molecularly imprinted polymer (MIP) particles via a noncovalent procedure for the removal of cloxacillin from milk. Accordingly, the effects of operational parameters such as pH, contact time and MIP dosage were studied. The performance of MIP particles in removing cloxacillin from livestock milk samples proved that these adsorbents can effectively help to reduce drug contamination from dairy sources.

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Section: Resultsmentioning

confidence: 99%

Synthesis and characterisation of a selective adsorbent based on the molecularly imprinted polymer for the removal of cloxacillin antibiotic residue from milk

Jafari

Dehghani

Nasirizadeh

et al. 2019

Int J of Dairy Tech

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“…Being a graphene derivative, GO exhibits large surface area, great mechanical properties [ 20 ], thermal conductivity and good optical transmittance. Due to its many reactive oxygen functionalities such as epoxy, hydroxyl, and carboxyl [ 21 ], GO represents a fruitful platform for polymer composites with applications for sensors [ 22 , 23 , 24 ], electronics [ 25 , 26 ], corrosion protection [ 27 ], or environmental issues [ 28 ]. Zeng and co-workers studied the curing behavior of bisphenol A-based benzoxazine in the presence of GO [ 29 ] showing that the polymerization temperature is decreased with ca.…”

Section: Introductionmentioning

confidence: 99%

Innovative Hyperbranched Polybenzoxazine-Based Graphene Oxide—Poly(amidoamines) Nanomaterials

2020

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The covalent functionalization of graphene oxide (GO) surface with hyperbranched benzoxazine (BZ) structures has been achieved using poly(amidoamine) dendrimers (PAMAM) of different generations. By increasing the PAMAM generation, multiple benzoxazine rings were synthesized decorating the GO layers. The polymerization process and the exfoliation behavior were investigated. The novel BZ-functionalized GO hybrid materials were characterized by a combination of techniques such as FT-IR, XPS, and 1H-NMR for the confirmation of benzoxazine formation onto the GO layer surfaces. Raman and XRD investigation showed that the GO stacking layers are highly disintegrated upon functionalization with hyperbranched benzoxazine monomers, the exfoliation being more probably to occur when lower PAMAM generation (G) is involved for the synthesis of hybrid GO-BZ nanocomposites. The polymerization of BZ rings may occur either between the BZ units from the same dendrimer molecule or between BZ units from different dendrimer molecules, thus influencing the intercalation/exfoliation of GO. DSC data showed that the polymerization temperature strongly depends on the PAMAM generation and a significant decrease of this value occurred for PAMAM of higher generation, the polymerization temperature being reduced with ~10 °C in case of GO-PAMAM(G2)-BZ. Moreover, the nanoindentation measurements showed significant mechanical properties improvement in case of GO-PAMAM(G2)-BZ comparing to GO-PAMAM(G0)-BZ in terms of Young modulus (from 0.536 GPa to 1.418 GPa) and stiffness (from 3617 N/m to 9621 N/m).

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“…By combining quantum dots with magnetic nanocrystals, an advanced nanocomposite polymer with excellent functionalities can be prepared, which simultaneously integrates the optical and magnetic properties [14,15]. A magnetic nanoparticle coupled with quantum dots can be directly separated and is then able to generate readable optical signals for analysis.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Fluorescence Molecularly Imprinted Polymer Based on FeOx/ZnS Nanocomposites for Highly Selective Sensing of Bisphenol A

et al. 2019

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In this study, magnetic fluorescence molecularly imprinted polymers were fabricated and used for the selective separation and fluorescence sensing of trace bisphenol A (BPA) in environmental water samples. The carboxyl-functionalized FeOx magnetic nanoparticles were conjugated with mercaptoethylamine-capped Mn2+ doped ZnS quantum dots to prepare magnetic FeOx and ZnS quantum dot nanoparticles (FeOx/ZnS NPs). Additionally, molecular imprinting on the FeOx/ZnS NPs was employed to synthesize core-shell molecularly imprinted polymers. The resulting nanoparticles were well characterized using transmission electron microscopy, Fourier transform infrared spectra, vibrating sample magnetometer and fluorescence spectra, and the adsorption behavior was investigated. Binding experiments showed that the molecularly imprinted FeOX/ZnS NPs (FeOx/ZnS@MIPs) exhibited rapid fluorescent and magnetic responses, and high selectivity and sensitivity for the detection of bisphenol A (BPA). The maximum adsorption capacity of FeOx/ZnS@MIPs was 50.92 mg·g−1 with an imprinting factor of 11.19. Under optimal conditions, the constructed fluorescence magnetic molecularly imprinted polymers presented good linearity from 0 to 80 ng mL−1 with a detection limit of 0.3626 ng mL−1 for BPA. Moreover, the proposed fluorescence magnetic polymers were successfully applied to on-site magnetic separation and real-time fluorescence analysis of target molecule in real samples.

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Determination of cefixime using a novel electrochemical sensor produced with gold nanowires/graphene oxide/electropolymerized molecular imprinted polymer

Cited by 77 publications

References 36 publications

Synthesis and characterisation of a selective adsorbent based on the molecularly imprinted polymer for the removal of cloxacillin antibiotic residue from milk

Synthesis and characterisation of a selective adsorbent based on the molecularly imprinted polymer for the removal of cloxacillin antibiotic residue from milk

Innovative Hyperbranched Polybenzoxazine-Based Graphene Oxide—Poly(amidoamines) Nanomaterials

Magnetic Fluorescence Molecularly Imprinted Polymer Based on FeOx/ZnS Nanocomposites for Highly Selective Sensing of Bisphenol A

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