Development of a molecularly imprinted photoelectrochemical sensing platform based on NH2-MIL-125(Ti)–TiO2 composite for the sensitive and selective determination of oxtetracycline

Yang, Yukun; Yan, Wenyan; Wang, Xiaomin; Yu, Ligang; Zhang, Jinhua; Bai, Baoqing; Guo, Caixia; Fan, Sanhong

doi:10.1016/j.bios.2021.113000

Cited by 48 publications

(11 citation statements)

References 40 publications

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“…The large specific surface area of the porous structure can provide more activity sites to anchor more probe DNA. 63 The chemical features and crystal structures of Cu-MOF, CuPc-TA-COF, and Cu-MOF@CuPc-TA-COF were investigated by Fourier transform infrared spectroscopy (FT-IR), Xray photoelectron spectroscopy (XPS), and powder X-ray diffraction measurements (PXRD) techniques. The FT-IR spectrum of Cu-MOF (curve i, Figure 2a) illustrates the absorption bands at 1690 and 1615 cm −1 , which are ascribed to the stretching vibrations of the carbon−oxygen double bond (CO) in the carboxyl group (COOH) and benzene skeleton vibration, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…It indicates that the electrons can migrate from the LUMO of Cu-MOF to that of CuPc-TA-COF based on the energy band match. Furthermore, the hole generated at Cu-MOF can be consumed by H 2 O according to the potential of H 2 O/O 2 (+1.23 V vs NHE), 63 which would decrease the efficiency of electron−hole recombination, gaining the enhanced PEC response.…”

Section: Resultsmentioning

confidence: 99%

“…The Cu-MOF@CuPc-TA-COF has a large specific surface area and small average pore size, indicting its abundant pore structure, which can provide more activity sites benefiting its use as a scaffold for the immobilization of probe DNA. The large specific surface area of the porous structure can provide more activity sites to anchor more probe DNA …”

Section: Resultsmentioning

confidence: 99%

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MOF@COF Heterostructure Hybrid for Dual-Mode Photoelectrochemical–Electrochemical HIV-1 DNA Sensing

Zhu

Zhang

et al. 2021

Langmuir

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We developed a novel metal–organic framework (MOF)@covalent–organic framework (COF) hybrid with a hierarchical nanostructure and excellent photoactivity, which further acted as the bifunctional platform of a dual-mode photoelectrochemical (PEC) and electrochemical (EC) biosensor for detecting HIV-1 DNA via immobilizing the HIV-1 DNA probe. First, the presynthesized Cu-MOF nanoellipsoids were used as the template for the in situ growth of the COF network, which was synthesized using copper-phthalocyanine tetra-amine (CoPc-TA) and 2,9-bis[p-(formyl)phenyl]-1,10-phenanthroline as building blocks through the Schiff base condensation. In view of the large specific surface area, abundant reserved amino group, excellent electrochemical activity, and high photoactivity, the obtained Cu-MOF@CuPc-TA-COF heterostructure not only can serve as the sensitive platform for anchoring the HIV-1 DNA probe strands but also can be utilized as the signal transducers for PEC and EC biosensors. Thereby, the constructed biosensor shows the sensitive and selective analysis ability toward the HIV-1 target DNA via the complementary hybridization between probe and target DNA strands. The dual-mode PEC and EC measurements revealed that the Cu-MOF@CuPc-TA-COF-based biosensor displayed a wide linear detection range from 1 fM to 1 nM and an extremely low limit of detection (LOD) of 0.07 and 0.18 fM, respectively. In addition, the dual-mode PEC–EC biosensor also demonstrated remarkable selectivity, high stability, good reproducibility, and preferable regeneration ability, as well as acceptable applicability, for which the detected HIV-1 DNA in human serum showed good consistency with real concentrations. Thereby, the present work can open a new dual-mode PEC–EC platform for detecting HIV-1 DNA based on the porous–organic framework heterostructure.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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MOF@COF Heterostructure Hybrid for Dual-Mode Photoelectrochemical–Electrochemical HIV-1 DNA Sensing

Zhu

Zhang

et al. 2021

Langmuir

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“…In addition, oxytetracycline, ciprofloxacin, ofloxacin, kanamycin, doxycycline, and streptomycin can also be detected using the PEC technique. [106][107][108][109][110][119][120][121][122][123][124][125][126][127][128][129] Peng et al developed a self-powered PEC aptasensor for oxytetracycline cathodic detection using a dual Z-scheme WO3/g-C3N4/MnO2 photoanode (Fig. 4B).…”

Section: Antibioticsmentioning

confidence: 99%

Research progress on photoelectrochemical sensors for contamination analysis in agricultural fields

et al. 2022

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The establishment of rapid and efficient contamination detection methods in agricultural fields is of great significance for safeguarding agricultural production and human health, and for ensuring the healthy development of agricultural industries. As a booming analytical method, photoelectrochemical (PEC) sensors, which combine the advantages of electrochemical analysis and optical analysis, have received increasing research attention. Due to the complete separation of the excitation source (light) and the detection signal (current), the background signal of PEC sensors is greatly decreased, and their sensitivity is high. This review aims to cover the advances in PEC sensors for contamination analysis in agricultural fields over the past five years, including analysis of heavy metals, antibiotics, pesticides, and toxins. The future prospects in this field are also discussed.

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“…For example, ( Yao et al, 2021 ) obtained Eu/Zr-MOFs nanomaterial to detect acrylamide by the solvothermal method using DMF solvent. The process was conducted in a stainless-steel high-pressure reactor with polytetrafluoroethylene lining and heated continuously at 120°C for 12 h. ( Yang et al, 2021 ) reported the successful fabrication of NH 2 -MIL-125(Ti)-TiO 2 composite for enhanced detection of oxytetracycline (OTC), which was achieved by using tetrabutyl titanate (TBT) and 2-aminoterephthalic acid (H 2 BDC-NH 2 ) as the reagents and DMF and methanol as the solvents. The reaction was carried out in a Teflon-lined autoclave at 150°C for 20 h.…”

Section: Controlled Synthesis Of Mofs For Food Safety Sensorsmentioning

confidence: 99%

Metal-Organic Frameworks-Based Sensors for the Detection of Toxins in Food: A Critical Mini-Review on the Applications and Mechanisms

Xuan

Wang

Manickam

et al. 2022

Front. Bioeng. Biotechnol.

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Using scientific technologies to detect toxins in food is significant to prevent food safety problems and protect people’s health. Recently, the rise of sensors has made rapid, efficient, and safe detection of food toxins possible. One of the key factors impacting the sensor’s performance is the nanomaterials employed. Metal-organic frameworks (MOFs), with high specific surface area, tunable composition, porous structure, and flexible properties, have aroused the interest of researchers. The applications of MOFs in detecting food toxins have seen remarkable success in the past few years. In this critical mini-review, the impact of various synthesis methods on MOFs’ properties is first presented. Then, the applications and mechanisms of MOFs-based sensors in detecting various toxins are summarized and analyzed. Finally, future perspectives, potential opportunities, and challenges in this field are discussed.

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Development of a molecularly imprinted photoelectrochemical sensing platform based on NH2-MIL-125(Ti)–TiO2 composite for the sensitive and selective determination of oxtetracycline

Cited by 48 publications

References 40 publications

MOF@COF Heterostructure Hybrid for Dual-Mode Photoelectrochemical–Electrochemical HIV-1 DNA Sensing

MOF@COF Heterostructure Hybrid for Dual-Mode Photoelectrochemical–Electrochemical HIV-1 DNA Sensing

Research progress on photoelectrochemical sensors for contamination analysis in agricultural fields

Metal-Organic Frameworks-Based Sensors for the Detection of Toxins in Food: A Critical Mini-Review on the Applications and Mechanisms

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