Electrospinner: Food safety evaluation and analysis technology based on metal organic frameworks (MOFs)

Food safety and MOFs

Food safety issues have attracted much attention due to their wide-ranging impact on human health and well-being. As a versatile sensing material, MOFs have shown great potential in monitoring various contaminants in food, including pesticide residues, heavy metals, and mycotoxins

The role of MOFs in food safety evaluation

Advances in sensing technology: MOFs have become excellent sensing materials for the development of food contamination sensing platforms due to their modifiable pore structure, large surface area, and high active site density

Detection mechanism: Electron transfer between MOF and analyte is the main detection mechanism of electrochemical detection methods. Strong interactions between metal ions and specific parts or atoms in MOFs often involve energy transfer in sensing strategies

Functionalization strategy: Modification of recognition elements and signal amplification have also been used for sensitive and selective detection based on MOFs

Connection with electrospinning

Combining the advantages of electrospinning and MOFs: Electrospinning technology can prepare nanofibers with high specific surface area and porous structure, while MOFs have periodic pore structure and abundant pore volume. Combining these two materials can enhance the porosity and mechanical strength of the composite material and improve the performance of energy storage applications

Application of MOFs in food safety testing: MOFs have become excellent sensing materials for the development of food contamination sensing platforms due to their modifiable pore structure, large surface area and high active site density. Electrospinning can be used to prepare MOF-based sensors for monitoring various contaminants in food, including pesticide residues, heavy metals, mycotoxins, etc.

Future prospects and challenges of MOFs

Improved performance: The application of MOFs is expected to overcome a series of limitations mainly caused by water instability, thereby improving their sensitivity, selectivity and reproducibility in aqueous environments

Food industry application: By better understanding the functions of MOFs, especially the development of MOF rapid methods suitable for food matrices (such as diagnostic kits and strips), the functional advantages of MOFs can be optimized and utilized to the maximum extent, so that their application in the food industry can be more widely used

Multifunctional MOF material design: Considering the high possibility of the presence of multiple contaminants in food, multifunctional MOF materials are designed

Improved detection platform specificity: The specificity of MOF-based detection platforms is expected to be improved, because most MOFs currently cannot detect specific analytes from a family of pesticides with similar structures

Sensing, capture and removal of target analytes: It is hoped that more multifunctional MOF materials will be developed to simultaneously sense, capture and remove target analytes in food

Electrospinning Nanofibers Article Source:

https://kns.cnki.net/kcms2/article/abstract?v=2iaLu-A-XVk6x47z7-6pEvaXPS43znmEGs7kZsqNm26FRb5DbfiY4gZQk9kop3pcC2bHKg9-eeOD-1iOwKG3kYjSUsOaRrTDQ8L54EAmWpMIckqci5YtQGu7bN5qgwUC5Cj0SU3WE3z-A6gfOim0BaHgIOKbU_G1B9fTWnN0OHbR07pBsWlXC1eZ43p8vm64sjWiDZcqwgw=&uniplatform=NZKPT