A new strategy for the development of efficient impedimetric tobramycin aptasensors with metallo-covalent organic frameworks (MCOFs)

Zhu, Lei; Liang, Gaolei; Guo, Chuanpan; Xu, Miaoran; Wang, Minghua; Wang, Changbao; Du, Miao

doi:10.1016/j.foodchem.2021.130575

Cited by 70 publications

(20 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Metal organic frameworks (MOFs) are a new class of nanostructured materials that have recently received special attention due to their properties ( Ghanbari et al, 2020 ; He et al, 2022 ). These compounds have a wide range of potential applications, including electronic to biomedical applications ( Al-Rowaili et al, 2018 ; Zhang et al, 2021 ; Zhu et al, 2022 ). Antibacterial applications are one of the applications of these compounds that distinguish nanostructures from other compounds ( Kaur et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: An Efficient Ultrasound-Assisted Synthesis of Cu/Zn Hybrid MOF Nanostructures With High Microbial Strain Performance

Abdieva

Patra

Al-Qargholi³

et al. 2022

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

Metal organic frameworks (MOFs) are a promising choice for antibacterial and antifungal activity due to their composition, unique architecture, and larger surface area. Herein, the ultrasonic method was used to synthesize the Cu/Zn-MOF material as an effective hybrid nanostructure with ideal properties. SEM images were used to investigate the product’s morphology and particle size distribution. The XRD pattern revealed that the Cu/Zn hybrid MOF nanostructures had a smaller crystalline size distribution than pure Cu and Zn-MOF samples. Furthermore, the BET technique determined that the hybrid MOF nanostructures had a high specific surface area. TG analysis revealed that the hybrid MOF structures were more thermally stable than pure samples. The final product, with remarkable properties, was used as a new option in the field of antibacterial studies. Antibacterial activity was assessed using MIC and MBC against Gram negative and Gram positive strains, as well as antifungal activity using MIC and MFC. The antimicrobial properties of the synthesized Cu/Zn hybrid MOF nanostructures revealed that they were more effective than commercial drugs in some cases. This study’s protocol could be a new strategy for introducing new hybrid nanostructures with specific applications.

show abstract

Section: Introductionmentioning

confidence: 99%

RETRACTED: An Efficient Ultrasound-Assisted Synthesis of Cu/Zn Hybrid MOF Nanostructures With High Microbial Strain Performance

Abdieva

Patra

Al-Qargholi³

et al. 2022

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…Metal-organic frameworks (MOFs) are porous adjustable crystalline polymers of three-dimensional networks of organic linkers and metal clusters. Their unique micro-or mesoporous structure results in low density, high porosity, specific surface area, and structural diversity making them attractive candidates for sensing gas, drug delivery, analysis, sensing, and energy storage (Wang et al, 2020;Zhang et al, 2021;Zhu et al, 2022). Processing and handling of MOFs are of great importance due to their crystalline nature and powder structure (Denny et al, 2016;Song et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Taguchi-Assisted Optimization Technique and Density Functional Theory for Green Synthesis of a Novel Cu-MOF Derived From Caffeic Acid and Its Anticancerious Activities

et al. 2021

View full text Add to dashboard Cite

In this paper, we have reported an innovative greener method for developing copper-metal organic frameworks (Cu-MOFs) using caffeic acid (CA) as a linker extracted from Satureja hortensis using ultrasonic bath. The density functional theory is used to discuss the Cu-MOF-binding reaction mechanism. In order to achieve a discrepancy between the energy levels of the interactive precursor orbitals, the molecules have been optimized using the B3LYP/6–31G method. The Taguchi method was used to optimize the key parameters for the synthesis of Cu-MOF. FT-IR, XRD, nitrogen adsorption, and SEM analyses are used to characterize it. The adsorption/desorption and SEM analyses suggested that Cu-MOF has a larger surface area of 284.94 m2/g with high porosity. Cu-MOF has shown anticancer activities against the human breast cancer (MDA-MB-468) cell lines, and it could be a potent candidate for clinical applications.

show abstract

“…Porous framework materials as COFs have great interest for biosensor applications. COFs serve as electrochemical transducers for modification material to improve the surface areas, crystallinity, and thermal stability [28][29][30]. Hence, the uniform incorporation of COFs into Fe 3 O 4 NPs@COF/AuNPs architecture not only avoid AuNPs' accumulation but also enhance nanoparticles' order, providing the contact between the substrate and target molecules.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical α-fetoprotein immunosensor based on Fe3O4NPs@covalent organic framework decorated gold nanoparticles and magnetic nanoparticles including SiO2@TiO2

et al. 2022

View full text Add to dashboard Cite

The early diagnosis of major diseases such as cancer is typically a major issue for humanity. Human α-fetoprotein (AFP) as a sialylated glycoprotein is of approximately 68 kD molecular weight and is considered to be a key biomarker, and an increase in its level indicates the presence of liver, testicular, or gastric cancer. In this study, an electrochemical AFP immunosensor based on Fe 3 O 4 NPs@covalent organic framework decorated gold nanoparticles (Fe 3 O 4 NPs@COF/AuNPs) for the electrode platform and double-coated magnetic nanoparticles (MNPs) based on SiO 2 @TiO 2 (MNPs@SiO 2 @TiO 2 ) nanocomposites for the signal amplification was fabricated. The immobilization of anti-AFP capture antibody was successfully performed on Fe 3 O 4 NPs@COF/AuNPs modified electrode surface by amino-gold affinity, while the conjugation of anti-AFP secondary antibody on MNPs@SiO 2 @TiO 2 was achieved by the electrostatic/ionic interactions. Transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) analysis, cyclic voltammetry (CV), square wave voltammetry (SWV), and electrochemical impedance spectroscopy (EIS) techniques were used to characterize the nanostructures in terms of physical and electrochemical features. The limit of detection (LOD) was 3.30 fg mL −1 . The findings revealed that the proposed electrochemical AFP immunosensor can be effectively used to diagnose cancer.

show abstract

A new strategy for the development of efficient impedimetric tobramycin aptasensors with metallo-covalent organic frameworks (MCOFs)

Cited by 70 publications

References 40 publications

RETRACTED: An Efficient Ultrasound-Assisted Synthesis of Cu/Zn Hybrid MOF Nanostructures With High Microbial Strain Performance

RETRACTED: An Efficient Ultrasound-Assisted Synthesis of Cu/Zn Hybrid MOF Nanostructures With High Microbial Strain Performance

RETRACTED: Taguchi-Assisted Optimization Technique and Density Functional Theory for Green Synthesis of a Novel Cu-MOF Derived From Caffeic Acid and Its Anticancerious Activities

Electrochemical α-fetoprotein immunosensor based on Fe3O4NPs@covalent organic framework decorated gold nanoparticles and magnetic nanoparticles including SiO2@TiO2

Contact Info

Product

Resources

About