A simple and sensitive sensor for lactose based on cascade reactions in Au nanoclusters and enzymes co-encapsulated metal-organic frameworks

Guo, Minzhe; Chi, Jingtian; Zhang, Chi; Wang, Minglin; Liang, Hui; Hou, Juying; Ai, Shiyun; Li, Xiangyang

doi:10.1016/j.foodchem.2020.127863

Cited by 27 publications

(7 citation statements)

References 20 publications

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“…7 MOFs have attracted widespread attention due to their unique crystal structure and have been widely used in storage, separation, catalysis, sensing, and other aspects. [8][9][10] In recent years, some MOFs, such as Cu-or Fe-based MOFs, have shown good peroxidase-like activity. 11,12 MOFs have been used as enzyme mimics for the construction of a colorimetric sensor in TMB and a H 2 O 2 system.…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive colorimetric detection and effective adsorption of phosphate based on MOF-808(Zr/Ce)

Zhai

Hou

et al. 2022

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

Highly sensitive colorimetric detection and effective adsorption of phosphate based on MOF-808(Zr/Ce)

Zhai

Hou

et al. 2022

New J. Chem.

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“…ZIF-8 has recently shown unique advantages in improving the suitability of enzymes. In Figure 4 , Guo et al (2021) prepared a zeolitic imidazole framework (AuNCs/β-Gal/GOx@ZIF-8) containing bovine serum albumin (BSA)-immobilized gold nanoclusters (AuNCs), β -galactosidase (β-Gal) and glucose oxidase (GOx) for detected lactose to improve the quenching rate of fluorescence AuNCs. Since AuNCs are only 0.8 nm in size and have BSA on their surface, BSA-immobilized AuNCs can be co-encapsulated with β -Gal and GOx in ZIF-8 at room temperature.…”

Section: Application Of Mofs In Food Contamination Adsorption and Det...mentioning

confidence: 99%

Metal-organic frameworks for food contaminant adsorption and detection

Guo

Wang²,

Wang³

et al. 2023

Front. Chem.

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Metal-organic framework materials (MOFs) have been widely used in food contamination adsorption and detection due to their large specific surface area, specific pore structure and flexible post-modification. MOFs with specific pore size can be targeted for selective adsorption of some contaminants and can be used as pretreatment and pre-concentration steps to purify samples and enrich target analytes for food contamination detection to improve the detection efficiency. In addition, MOFs, as a new functional material, play an important role in developing new rapid detection methods that are simple, portable, inexpensive and with high sensitivity and accuracy. The aim of this paper is to summarize the latest and insightful research results on MOFs for the adsorption and detection of food contaminants. By summarizing Zn-based, Cu-based and Zr-based MOFs with low cost, easily available raw materials and convenient synthesis conditions, we describe their principles and discuss their applications in chemical and biological contaminant adsorption and sensing detection in terms of stability, adsorption capacity and sensitivity. Finally, we present the limitations and challenges of MOFs in food detection, hoping to provide some ideas for future development.

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“…Enzyme cascade amplification is an effective tactic for sensitive sensing [ 89 ]. To realize the detection of lactose, AuNCs/β-Gal/GOx@ZIF-8 nanoprobe was fabricated through encapsulation of glucose oxidase (GOx), β-galactosidase (β-Gal) and bovine serum albumin (BSA)-protected AuNCs with ZIF-8 [ 90 ]. The nanocomposites showed a prominent emission peak at approximately 650 nm under 375 nm light excitation.…”

Section: Luminescence Sensingmentioning

confidence: 99%

Metal–Organic Frameworks-Mediated Assembly of Gold Nanoclusters for Sensing Applications

Wang

Tan

et al. 2022

J. Anal. Test.

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Gold nanoclusters (AuNCs) are an emerging type of ultrasmall nanomaterials possessing unique physicochemical characteristics. Metal–organic frameworks (MOFs), a singular kind of porous solid and crystalline material, have attracted tremendous attention in recent years. The combination of AuNCs and MOFs can integrate and improve the prominent properties of both components, such as high catalytic activities, tunable optical properties, good biocompatibility, surface functionality and stability, which make the composites of MOFs and AuNCs promising for sensing applications. This review systematically summarizes the recent progress on the sensing of various analytes via MOFs-mediated AuNCs assemblies based on strategies of luminescence sensing, colorimetric sensing, electrochemiluminescence sensing, and electrochemical and photoelectrochemical sensing. A brief outlook regarding the future development of MOFs-mediated AuNCs assemblies for sensing application is presented as well.

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A simple and sensitive sensor for lactose based on cascade reactions in Au nanoclusters and enzymes co-encapsulated metal-organic frameworks

Cited by 27 publications

References 20 publications

Highly sensitive colorimetric detection and effective adsorption of phosphate based on MOF-808(Zr/Ce)

Highly sensitive colorimetric detection and effective adsorption of phosphate based on MOF-808(Zr/Ce)

Metal-organic frameworks for food contaminant adsorption and detection

Metal–Organic Frameworks-Mediated Assembly of Gold Nanoclusters for Sensing Applications

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